KR200150061Y1 - The over flow apparatus of a washing machine - Google Patents

Abstract

As the height of the overflow pipe is changed according to the change of the rinsing water level, the overflow function is possible even at the low water level, so that it is possible to save water when rinsing and also to reduce the rinsing time. The present invention for the water supply rinsing stroke rinsing water is continuously supplied during the rinse set time, installed through the inner and outer sides of the outer tank 10, the overflow pipe 30 is moved up and down along the water level, and in the outer tank 10 A guide tube 40 connected to the drain 11 for discharging the contaminated water to the outside and guide the contaminated water discharged through the overflow pipe 30 to the drain, and installed in the outer tub 10 It consists of a fixing member 60 for selectively fixing the flow pipe (30).

Description

Overflow device of washing machine

The present invention relates to a washing machine, and more particularly, to an overflow apparatus of a washing machine to enable an overflow rinsing function regardless of the water level by varying the height of the overflow pipe according to the change in the rinsing water level.

In general, the automatic washing machine is a device that washes by the frictional force of the water flow and the laundry, and the decomposition of the detergent according to the forced flow of the washing water, usually washing automatically or semi-automatically while repeating several times of washing-rinsing-draining- Will be performed.

1 is a side cross-sectional view showing an example of the above automatic washing machine, which is a washing machine body (1), and an upper open cylindrical outer tub (2) fixed to store the washing water in the washing machine body, and A washing tank (3) installed inside the outer tub and selectively rotating only in the dehydration stroke, a pulsator (4) installed in the lower center of the washing tank and generating water flow by rotating forward and reverse during washing and rinsing stroke, and It is composed of a drive means (5) connected to the outer tub (2) and the pulsator (4) to selectively provide rotational power.

Therefore, when power is supplied to the washing machine for automatic washing, the amount of laundry in the washing tank 3 is detected by a microcomputer (not shown), and the water level is started after determining the washing level and washing time corresponding to the washing level. When the water supply is made, the water supply is stopped and the pulsator 4 is rotated forward and backward by the power of the driving means 5 to flow the supplied wash water, which is buried in the laundry by the flow force of the wash water and the decomposition of the detergent. Eliminate when you are.

When the washing stroke is completed, the drain valve 6 is opened to perform a drainage stroke for discharging all the contaminated water including washing time separated from the laundry to the outside, and when the draining is completed, the washing tank 3 is rotated at a high speed to wash the washing tank. The intermediate dewatering is performed by centrifugal force to remove the remaining contaminated water in the laundry inherent in the laundry.

After the above process, a rinsing stroke is performed to rinse off the detergent and residual contaminants in the laundry.The rinsing stroke is set to a rinsing mode and a rinsing setting where the water is no longer supplied after the water is supplied only at the set level. There are two cases of water rinse mode where water is continuously supplied for a period of time (usually 3 to 5 minutes).

The rinsing mode repeats only water supply, drainage, and rinsing operations without separately discharging the floats generated from the laundry during rinsing, and the floating water floating on the surface of the contaminated water is not properly discharged and is buried in the laundry during drainage. The rinse frequency had to be set.

As a result, there was a problem of increasing water consumption by increasing the number of rinsing water and the supply of rinsing water in proportion to the rinsing water. Therefore, in order to compensate for this, the floating water floating in the rinsing water is discharged first. A water rinse mode procedure is provided to prevent the filling.

In order to use the overflow function for discharging foreign matters among the two rinsing modes, only the latter water rinsing mode will be used.

That is, in the water rinsing mode, when the rinsing water is introduced into the outer tank for water rinsing, the detergent and residual contaminants in the laundry are separated as the rinsing water flows while the pulsator 4 rotates forward and backward as in the washing operation. Done.

At this time, the foreign matter separated from the laundry during the water rinsing floats on the water surface of the rinsing water, so that the amount of the rinsing water that is exceeded when the water level exceeds the proper level on one side of the outer tank 2 to discharge the suspended matter using this principle. An overflow drain 7 was formed to overflow so that the float floated on the water was discharged as described above.

When the water supply rinsing is completed, the drain valve 6 is opened to discharge the contaminated rinsing water in the outer tank 2 to the outside, and finally, the automatic washing is finished after the dehydration stroke for removing the remaining rinsing water on the laundry. .

On the other hand, the water supply rinsing increases the amount of rinsing water in proportion to the large amount of washing, thereby increasing the rinsing time accordingly, so that there is sufficient time to reach the overflow drain 7, thereby over While the flow function can be utilized, if the amount of the laundry is small, the rinsing time is short in proportion to this, even if the water is continuously supplied during the rinsing time, there was not enough time to reach the overflow drain 7.

As a result, only the rinsing water is continuously supplied without discharging the suspended matter to the outside, so the overflow function cannot be utilized at the low water level, and only the rinsing water is excessively supplied compared to the washing amount, thereby increasing the water consumption.

Because of this, when the washing amount is small, the water rinsing for the overflow function was not utilized, so the range of use was limited.

The present invention has been made in view of the above-described conventional problems, the purpose is to allow the discharge of water generated during water rinsing irrespective of the water level to improve the rinsing power and to expand the utilization of the overflow function.

The present invention for achieving the above object is in the water supply rinsing stroke rinsing water is continuously supplied during the rinse set time, the overflow pipe is installed through the inner and outer sides of the outer tank to move along the water level, and the contaminated water in the outer tank A rinsing water supply is formed by a guide pipe connected to a drain hole for discharging to the drain and guided to guide the contaminated water discharged through the overflow pipe to the drain hole, and a fixing member installed in the outer tank to selectively fix the overflow pipe. When it begins to flow, the overflow pipe is moved along the water level, and when it reaches the set water level, it is fixed by the fixing member to maintain the state.In this state, the rinsing water is continuously supplied, and when the water level exceeds the overflow pipe, the rinsing water is increased. Contaminated water, including suspended solids floating on the surface by the volume of the overflow and guide tubes It is to provide an overflow device of the washing machine to be discharged from the outer tank through the outside.

1 is a side cross-sectional view showing an example of a general washing machine

2 is a longitudinal sectional view of the outer tub to which the conventional overflow device is applied;

3 is a longitudinal sectional view of the outer tub to which the overflow device of the present invention is applied;

4 is an operating state diagram of FIG.

* Explanation of symbols for main parts of the drawings

10: outer tank 11: drain

20: step 21: horizontal portion

22: rib 30: overflow pipe

31: Bure 40: Guide tube

50: packing member 60: fixing member

Hereinafter, with reference to the accompanying Figures 3, 4 will be described in detail.

The lower part of the outer tub 10 for storing the wash water fixedly installed in the washing machine body 1 is provided with a drain 11 for discharging the contaminated water to the outside, the drain hose to the outside ( 12).

In addition, the lower one side of the outer tank 10 is formed with a stepped jaw 20 having a horizontal portion 21 protruded in the center direction of the outer tank, the horizontal portion 21 of the step 20 is inlet 30a And an overflow pipe 30 having a water outlet 30b is vertically installed therethrough, and an upper portion of the overflow pipe 31 has a float 31 floating in water so that the overflow pipe can be moved along the water level during water supply. It is installed.

The overflow pipe 30 is inserted into the guide pipe 40 having a larger diameter than this, and the guide pipe guides the overflow pipe 30 to prevent shaking at the same time as Shanghai and drains through the overflow pipe. It is connected to the drain 11 so that the rinsing water is guided to the drain hose (12).

On the other hand, the bottom of the horizontal portion 21 of the step (20) is formed integrally with the rib 22 extending downwards and the water in the outer tub 10 between the overflow pipe 30 penetrating the rib The packing member 50 which keeps airtightness is inserted in order to prevent it from leaking to this outside.

On the outer circumferential surface of one side of the outer tub 10, a fixing member 60 is installed to fix it after moving along the water level. The fixing member may be any method as long as it fixes the overflow pipe at a predetermined position. As an example of the same method, when a current is applied by a microcomputer (not shown), an electric magnet selectively operates to closely contact or be spaced apart from an outer surface of the overflow pipe 30 as the rod 61 is sunk and operated by magnetic force. There is a way to use it.

On the other hand, the height (H) of the step 20 is preferably installed at a position lower than the height (h) of the lowest water level to enable the overflow function even at the lowest water level.

Therefore, in the general washing stroke or rinsing stroke, water is supplied only by the set water level. In this case, since the control operation of the fixing member 60 is released, the overflow pipe 30 along the water level of the water supplied into the outer tub 10. This rises and the overflow pipe is in a floating state at the level of water supply is stopped, in this state is a general washing or rinsing is performed there is no problem in operation.

On the other hand, if the water supply rinsing to wash the laundry is selected by the microcomputer (not shown) to detect the washing amount is proportional to this to supply the rinsing water into the outer tank 10 accordingly the overflow pipe 30 of the rinsing water It will rise along the level.

That is, when the water level that has risen from the bottom of the outer tank 10 reaches the beret 31 placed on the horizontal portion 21 of the step 20, the beret is raised by the buoyancy of the water therefrom, and thus the beret ( The overflow pipe 30 installed in 31 is smoothly vertically risen without being flown during operation by the rib 21.

In this case, since the overflow pipe 30 is vertically installed through the horizontal portion 21 of the step 20 and the rib 21 formed at the lower end thereof, the outer circumferential surface of the overflow pipe 30 is the rib 21. Since the contact area is increased by the length of the overflow pipe is an accurate operation without flowing when the up and down movement.

In this way, the bure 31 and the overflow pipe 30 rises along the water level, and when the water level reaches the set water level, the microcomputer recognizes this and applies power to the fixing member 60 so that the rod 61 is overflowed by magnetic force. Protruding in the direction of (30) to be in close contact with the surface of the overflow tube 30 is maintained in a fixed state.

In the state where the overflow pipe 30 is fixed as described above, even though the water level rises, the overflow pipe adheres to a fixed position, so that the water supply volume of the new rinsing water supplied after being fixed is located at the upper portion of the outer tub 10. The contaminated water flows out through the upper inlet port 30a of the overflow pipe 30 to the lower outlet port 30b and is discharged to the outside along the guide tube 40 and the drain hose 12.

At this time, since the packing member 50 is inserted between the overflow pipe 30 and the rib 21, even if the overflow pipe 30 moves up and down, the rinsing water can be prevented from flowing out of the outer tub 10. do.

In addition, the guide tube 40 to which the overflow tube 30 is fitted has a predetermined interval therebetween so that the overflow tube does not come into contact when the overflow tube moves up and down, thereby enabling the smooth operation of the overflow tube 30. When the guide pipe 40 is raised to the highest water level, the guide pipe 40 is formed so that its lower end has a length that can be located inside the guide pipe 40 from the overflow pipe 30 The discharged polluted water may be introduced into the guide tube 40 without flowing out.

On the other hand, when the amount of the rinsing water supplied into the outer tub 10 is at the minimum set water level (h), if the height of the step 20 is higher than this, the rinsing water must be supplied at least as high as the height deviation. The water level reaches the water inlet 30a of 30. If the water supply rate is slower than the water supply rinsing time, the overflow function for discharging the contaminated water cannot be utilized, so the height of the step 20 is the minimum set water level (h). Only in the lower position can the efficient use of the overflow function.

As the water and rinse stroke increases or decreases depending on the amount of water supplied, the overflow function can be used at any level.In particular, even when the water level is low, overflow occurs from the water level. Since there is no need to supply water, the amount of water can be reduced, and the water supply time and rinsing time can be shortened.

Claims (9)

In the water rinsing stroke in which the rinsing water is continuously supplied for a rinse setting time, An overflow pipe installed through the inside and outside of the outer tank and moving along the water level; A guide tube connected to a drain hole for discharging the contaminated water in the outer tank to the drain port to guide the contaminated water discharged through the overflow pipe; Installed in the outer tank overflow device of the washing machine, characterized in that consisting of a fixing member for fixing the overflow pipe selectively. The method of claim 1, The overflow device of the washing machine, characterized in that the lower portion of the outer tank protrudes in the center direction of the outer tank and has a stepped portion having a horizontal portion so that the overflow pipe is vertically penetrated in the horizontal portion. The method of claim 2, An overflow device for a washing machine, characterized in that the stepped height is formed at a position lower than at least the minimum water level. The method of claim 2, The overflow device of the washing machine, characterized in that the rib is formed protruding downward in the lower portion of the horizontal portion of the step. The method according to claim 2 or 4, An overflow device for a washing machine, characterized in that a packing member is inserted between the rib and an overflow pipe penetrating therethrough to prevent leakage. The method of claim 1, The fixing member is an overflow device for a washing machine, characterized in that the rod is driven by the magnetic force, the electric magnet is in close contact or spaced apart from the outer surface of the overflow pipe. The method of claim 1, The overflow device of the washing machine, characterized in that the bure is installed to be located in the outer tub at the top of the overflow pipe. The method of claim 1, The overflow pipe of the washing machine, characterized in that the lower portion of the overflow pipe is inserted into the guide tube to guide the overflow pipe moving vertically along the water level. The method of claim 1, The guide pipe is an overflow device of a washing machine, characterized in that the lower end of the guide tube has a length that can be located inside the guide tube when the overflow pipe is raised to the highest water level.