KR100808159B1 - penetration - type washing machine having additive injecting structure - Google Patents

Abstract

The present invention provides a structure in which an additive such as bleach or fabric softener may be introduced through a tub cover in a permeable washing machine forming a bidirectional shower water, and prevents washing water from flowing back through the additive inlet during permeation washing. It was made possible.

To this end, the present invention is an outer case (4), the outer tub (1) installed inside the outer case (4), the washing tub is installed rotatably in the outer tub (1) and formed with a plurality of holes on the outer peripheral surface (2), the top cover 14 mounted on the top of the outer case 4, an additive storage chamber 15 provided on the top surface of the top cover 14 to accommodate additives such as bleach or fabric softener, A tub cover having an additive inlet hole 20 formed on an inner surface of the upper end of the outer tank 1 under the top cover 14 to allow the additive supplied from the additive storage chamber 15 to enter the lower space thereof. 10) and a permeation method provided on the additive inlet hole of the tub cover 10 includes a backflow preventing means for preventing backflow of the wash water through the additive inlet hole 20 during permeation washing. A washing machine is provided.

Additive, bleach, tub cover, permeate flow, backflow, valve

Description

Penetration-type washing machine having additive injecting structure}

1 is a view showing a structure of a conventional washing machine, a longitudinal cross-sectional view showing the structure of a permeable washing machine for forming a two-way shower water;

FIG. 2A is a top view of the tub cover of FIG. 1

Figure 2b is a bottom view of the tub cover of Figure 1

FIG. 3 is a longitudinal sectional view showing the main part of the present invention, and the present invention applied to part A of FIG.

4 is an exploded perspective view showing the main components of the present invention.

Figure 5a is a perspective view showing the combined state of Figure 4

FIG. 5B is a bottom perspective view of FIG. 5A

Figure 6 is a bottom perspective view of the tub cover showing another embodiment of the present invention

Explanation of symbols on the main parts of the drawings

1. Outer tub 2. Washing tub

3. Snubber Bar 4. Outcase

5. Motor 6. Timing Belt

7. Clutch 10. Tub cover                 

Non-return valve 100a. Non-return valve

100b.Valve rod 100c.Hook

Notched groove 14. Top cover

15. Additive storage chamber 18. Siphon for adding additive

19. Guide baffle 20. Additive inlet hole

20a. Valve catching rib 20a-1

20b.Shielding rib 200. Water supply valve

210. Water pipe

The present invention relates to a washing machine capable of adding additives such as bleach or fabric softener, and more specifically, in a permeable washing machine for forming a bidirectional shower water, additives such as bleach or fabric softener are possible through a tub cover, and instead of washing water. Reverse flow is to be prevented.

In general, permeation washing is a method in which washing is performed while the permeate stream formed by the high speed rotation of the washing tank or the washing blade passes between the laundry and the ol.

1 is a vertical cross-sectional view showing an example of a conventional washing machine, Figures 2a and 2b is a plan view and a bottom view showing only the tub cover of Figure 1, showing an example of a permeable washing machine to form a two-way shower water.                         

Looking at the configuration of a conventional transmission washing machine, the outer tank (1) is a storage tank is installed inside the outer case (4), the washing tank (2) is installed in the outer tank (1) and the outer tank (1) is an outer case ( 4) It is supported by a snubber bar installed at each corner of the upper end.

In addition, a tub cover 10 is installed at an upper end of the outer tub 1 to prevent a phenomenon that the foam generated during washing overflows and flows through the outer wall of the tub to adversely affect the insulation of the driving unit. The top cover 14 is installed in the.

On the other hand, the washing tank (2) is a place where laundry and detergent are put, a plurality of through-holes are formed on the outer circumference, and the washing blade (9) is mounted on the bottom surface.

One side of the outer surface of the outer tub 1 is equipped with a motor 5, a clutch 7 for selectively transmitting the rotational force to the washing tank 2 and the washing blade 9 in the lower center is installed.

In addition, a driving pulley and a driven pulley are installed at the shaft end of the motor 5 and the shaft end of the clutch 7, respectively, and a timing belt 6 is wound between the driving and driven pulleys 8.

Then, a water supply valve 200 for controlling the supply of water through the water supply pipe from the outside is installed on one side of the rear of the outer case 4, the other side of the rear of the outer case 4 for detecting the water level in the washing tank (2) The water level sensor 11 is installed.

The microcomputer 13 controls the water supply by the water level sensor 11.

In addition, the lower side of the outer tank (1) is provided with a drain valve 300 for discharging the water discharged through the through-hole of the washing tank (2) during the washing, rinsing, dehydration process to the outside.

The conventional permeable washing machine configured as described above performs washing by forming a permeate stream by the centrifugal force generated during the washing blade or the high speed rotation of the washing tank 2 during washing.

At this time, it is possible to form the centrifugal permeate flow in both directions.

That is, when the washing tank 2 or the washing vanes rotate in the forward direction, the pumped water flows up from the bottom along the wall of the outer tank 1 and flows through the lower surface of the tub cover 10 as shown in FIG. 2B in a solid line. While discharged into the washing tank (2) through one side discharge port (10a), when the washing tank (2) or the washing blade is rotated at a high speed again, the pumped water flows up from the bottom along the wall of the outer tank (1) to guide (10c) Under the guidance of the tub cover 10, as shown by the dotted line in FIG. 2b flows and is discharged into the washing tank 2 through the other discharge port (10b).

On the other hand, such a permeable washing method can be washed and rinsed by pumping even while filling the washing tank 2 with a little water, drainage and water supply time is reduced, thereby reducing the overall washing time.

However, the conventional permeable washing machine does not have a structure in which additives such as bleach or fabric softener are introduced through the tub cover 10.

Therefore, when the addition of additives such as bleach is required, the user has to open the washing machine lid directly and inject the additive into the washing tank 2.

In particular, when the bleach is added, there is a problem such as causing a discoloration of the laundry if the time is not appropriate.

In other words, if the wash water is not sufficiently supplied in the washing tank 2 or if the bleach is directly sprayed on the laundry while the laundry is not sufficiently wetted with the washing water, the laundry will be discolored. There was a very high concern.

The present invention is to solve the above problems, while providing a structure in which the bleach or fabric softener can be introduced through the tub cover in the permeable washing machine to form a two-way shower water, which is a disadvantage that may occur in such a structure The purpose of the present invention is to effectively prevent the phenomenon of backwashing through the additive inlet of the tub cover during permeation washing.

In order to achieve the above object, the present invention provides an outer case, an outer tub provided inside the outer case and having a tub cover at an upper end thereof, and a washing tub rotatably installed inside the outer tub and having a plurality of holes formed on an outer circumferential surface thereof. In the permeable washing machine comprising a top cover mounted on the outer case; An additive accommodating chamber such as bleach or fabric softener is provided on an upper surface of the top cover, and an additive inlet hole for introducing an additive supplied from the additive accommodating chamber into the space under the tub cover is provided on the tub cover below the additive accommodating chamber. On the additive inlet hole is provided an additive injecting structure, characterized in that the backflow prevention means for preventing the backflow of the washing water to the upper portion of the tubular cover during washing.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 3 to 5B.

3 is a longitudinal cross-sectional view showing the technical features of the present invention, the technique of the present invention applied to the portion A of FIG. 1, Figure 4 is an exploded perspective view showing the technical features of the present invention, Figure 5a is a combination of Figure 4 5B is a bottom perspective view of FIG. 5A.

The permeable washing machine according to the present invention is provided with an outer case (4), an outer tub (1) installed inside the outer case (4), and rotatably installed in the outer tub (1) and having a plurality of holes formed on an outer circumferential surface thereof. A washing tank 2, a top cover 14 mounted on the top of the outer case 4, an additive storage chamber 15 provided on an upper surface of the top cover 14 so as to store additives such as bleach or fabric softener; And a tub cover 10 having an additive inlet hole 20 formed at an upper end of the outer tub 1 under the top cover 15 to allow the additive supplied from the additive storage chamber 15 to flow into the lower space thereof. It is provided on the additive inlet hole 20 of the tub cover 10 is configured to include a backflow prevention means for preventing the reverse flow of the wash water through the additive inlet hole 20 during the permeation washing.

At this time, the valve catching rib 20a having a plurality of cutout grooves 20a-1 along the circumferential direction is formed and further formed in an upward direction around the additive inlet hole 20 on the upper surface of the tub cover 10. The reverse flow prevention means is inserted through the additive inlet hole 20 to be assembled to the front end of the valve catching rib 20a so as to lift and lower the reverse flow of the permeate flow during centrifugal washing while raising and lowering according to the action of the rising pressure by buoyancy. It is configured to include a non-return valve 100.

The non-return valve 100 includes a disc-shaped non-return plate 100a, a valve rod 100b formed in a direction perpendicular to a surface at the center of the non-return plate 100a, and the valve rod 100b. The hook 100c has a diameter larger than that of the additive inlet hole 20 so as to be prevented from being caught by the valve catching rib 20a as the insertion end is inserted into the additive inlet hole 20.

In addition, cutout grooves 100c-1 are formed in a central portion of the valve rod 100b and the hook 100c to a predetermined position along the axial direction of the valve rod 100b.

At this time, the length of the cutout groove (100c-1) does not operate the rise pressure, the cutout groove (100c-1) in the state that the hook (100c) of the non-return valve 100 is seated on the valve catching rib (20a) It must be greater than the length through which the additive can enter the space below the tub cover (10).

That is, when the rising pressure does not operate in the non-return valve 100, the cutout groove 100c-1 should be exposed to the lower portion by a predetermined length L than the lower surface of the tub cover 10. (See Figure 3)

On the other hand, the notch groove (100c-1) of the hook (100c) when assembling the non-return valve 100 through the additive inlet hole 20, by helping the hook (100c) to be retracted to facilitate the assembly is made. .

The notch groove 20a-1 provided between the valve catching ribs 20a serves as an additive inflow passage when the shaft diameter of the valve rod 100b is smaller than that of the additive inlet hole 20.

In addition, the hook (100c) when the assembling the non-return valve 100 in the tub cover 10, it is preferable to form a pointed cone shape toward the end to facilitate the insertion into the additive inlet hole (20).

Wherein the formation position of the additive inlet hole 20 is preferably formed in the region between the outer tank (1) and the washing tank (2).

Meanwhile, a guide baffle 19 is formed around the additive inlet hole 20 on the upper surface of the tub cover 10 to guide the additive falling from the additive accommodating chamber 15 to the inlet 20. It is preferable that the baffle 19 forms a shape in which the width thereof becomes wider toward the top.

In addition, in the portion corresponding to the additive inlet hole 20 of the additive storage chamber 15, when the additive contained in the additive storage chamber 15 is greater than or equal to a predetermined liquid level, the additive may flow into the upper surface of the tub cover 10. An additive injecting siphon 18 is installed.

Meanwhile, a water supply pipe 17 for supplying water to the additive storage chamber 15 to raise the liquid level of the additive to cause the siphon phenomenon is connected to the other side of the additive storage chamber 15.

The operation of the invention configured as described above will be described by taking the case of bleach addition as an example.

First, the washing machine lid is opened and the bleach is put into the additive storage chamber 15 formed concave on the top cover 14.

At this time, on the inner wall of the additive storage chamber 15 or on the outer circumferential surface of the siphon 18, a scale indicating the amount of the additive is displayed, so that the user can add an appropriate amount of the additive.

On the other hand, after putting the laundry in the washing tank 2, after closing the washing machine lid and pressing the washing start button, the amount of water is detected, the water supply valve 200 is opened according to the control of the microcomputer 13, and set according to the amount of Water is supplied to the washing tank 2 through the water supply pipe 210 until the water level is reached.

In this way, when the water level in the washing tank 2 reaches the water supply level set according to the quantity, permeation washing is performed. The storage room water supply pipe connected to the additive storage chamber 15 from the water supply pipe 210 immediately before permeation washing is performed. Water is also supplied to the additive storage chamber 15 through (not shown).

At this time, the siphon 18 has a predetermined height, and the bleach is filled by the siphon phenomenon until the bleach is diluted by the water supplied to the additive storage chamber 15 and thus the tip of the siphon 18 is filled up. It is introduced into the siphon 18.

As such, the bleach introduced into the siphon 18 falls into the inner region of the guide baffle 19 formed on the tub cover 10 positioned directly below the additive storage chamber 15.

That is, the guide baffle 19 prevents the bleach from flowing out of the outer tub 1.                     

On the other hand, the bleach agent dropped to the inner region of the guide baffle 19 is introduced into the lower space of the tub cover 10 through the additive inlet hole 20, which will be described in more detail at this time (that is, before permeation washing) Since the back pressure preventing plate 100a of the non-return valve 100 does not block the additive inlet hole 20 because the rising pressure does not work, the bleach that has fallen to the inner region of the guide baffle 19 has no The tub cover 10 is introduced into the lower space through the notch groove 100c-1.

That is, the non-return valve 100 of the present invention is lowered by its own weight when the permeate flow does not work, and at this time, through the cutout groove 100c-1 formed in the hook 100c and the valve rod 100b. The tub cover 10 is in communication with the upper space and the lower space, so that the bleach may be added.

On the other hand, it is preferable to add the bleach to the washing tank 2 after the completion of the water supply to the water supply level according to the quantity, as described above, if the water is lacking or insufficient water bleaching agent due to the bleaching agent partially bleaching the phenomenon This is to prevent.

When the washing stroke is started in the state where the addition of the bleach is completed, the washing tank 2 or the washing wing 9 rotates at a high speed to form a permeate stream by centrifugal force, and thus permeation washing is performed.

At this time, the permeate flow exiting the tub 2 flows through the bottom surface of the tub cover 10 and is discharged back into the tub 2 under the guidance of the water flow guide plate, and the additive inflow of the tub cover 10 is introduced. Since the non-return valve 100 is provided on the ball 20, the phenomenon in which the washing water flows back to the tub cover 10 through the additive inlet hole 20 is prevented.

That is, when the permeate flow flowing on the bottom surface of the tub cover 10 passes through the additive inlet hole 20, the upward pressure is applied to the non-return valve 100 provided on the additive inlet hole 20. As a result, the non-return valve 100 rises to the dotted line state shown in FIG. 3 to block the additive inlet hole 20.

In other words, the non-return valve 100 of the present invention rises when the upward pressure is applied by the permeate flow to block the additive inlet hole 20 to block the reverse flow of the wash water, and when the permeate flow does not work, Since the lowered state, it is possible to add the bleach and the like through the additive inlet hole 20.

On the other hand, Figure 6 is a tub cover bottom perspective view showing another embodiment of the present invention, in this case is spaced around the non-return valve 100a of the non-return valve 100 is installed on the additive inlet hole (20) The surrounding shielding rib 20b is provided.

Therefore, since the shielding rib 20b is spaced around the non-return valve 100a of the non-return valve 100 so as not to prevent the inflow of additives, the permeation of the non-return valve 100 during permeation washing. Even if the rising pressure does not work or the lifting operation of the non-return valve 100 is not performed due to foreign matters, the washing water prevents the washing water from flowing straight into the additive inlet hole 20.

In addition, since the shielding rib 20b prevents the washing water from flowing straight into the additive inlet hole 20 regardless of the direction of the permeate flow, the shielding rib 20b forms an additive inlet hole in the washing machine to form the two-way permeate stream. It is effective to prevent backflow of wash water through 20).

On the other hand, in the case of the rinsing stroke, the addition of the fabric softener instead of the bleach as an additive is different, the addition of additives and the formation of water flow is made in the same process.

The present invention is not limited to the above embodiments, and various changes and modifications can be made in various forms without departing from the scope of the technical idea of the present invention.

As described above, the present invention provides a structure in which a bleach or a fabric softener may be introduced through a tub cover in a permeable washing machine forming a bidirectional shower water, while washing water may be generated during permeation washing. The reverse flow through the additive inlet of the tub cover is to be prevented.

Accordingly, it is possible to automatically add additives such as bleach or fabric softener, and it is possible to provide a washing machine that can effectively prevent damage to laundry due to direct addition of additives.

Claims (12)

Outcase, An outer tub installed inside the outer case, A washing tub rotatably installed inside the tub and having a plurality of through holes formed on an outer circumferential surface thereof; A top cover mounted on the outer case, An additive storage chamber provided on an upper surface of the top cover to accommodate an additive; A tub cover provided at an upper end of the outer tank under the top cover and having an additive inlet hole for introducing an additive supplied from the additive storage chamber into the lower space; Is provided on the additive inlet hole, penetrates the laundry by the rotation of the washing tank and exits the washing tank and ascends through the inner wall of the outer tank to move up and down by washing water flowing through the bottom of the tub cover, the additive inflow A permeable washing machine including a backflow preventing means for selectively opening and closing a ball to prevent backflow of the washing water. The method of claim 1, Further comprising a valve catching rib formed in the upper direction around the additive inlet hole of the upper surface of the tub cover and having a plurality of notched grooves along the circumferential direction, The backflow preventing means is inserted through the additive inlet hole is fitted to the end of the valve catching ribs, characterized in that it comprises a non-return valve for lifting by buoyancy by the wash water. The method of claim 2, The non-return valve, A disk-shaped backflow prevention plate, a valve rod formed in a direction perpendicular to a surface at the center of the backflow prevention plate, and provided at the end of the valve rod to prevent being caught by the valve catching rib as the additive inlet is completed. Permeable washing machine, characterized in that consisting of hooks. The method of claim 3, wherein Permeable washing machine, characterized in that the notched groove is formed in the center of the valve rod and the hook along the axial direction of the valve rod. The method of claim 4, wherein The length of the notch groove, Permeable washing machine characterized in that the length of the additive can be introduced into the space under the tub cover through the notch groove in the state that the hook is seated on the valve catching rib by the weight of the non-return valve. The method of claim 2, Permeable washing machine, characterized in that between the valve engaging rib is provided with a notch groove that acts as an additive inlet passage when the shaft diameter of the valve rod is smaller than the additive inlet hole. The method of claim 3, wherein The hook is a permeable washing machine, characterized in that when the assembly of the non-return valve on the tub cover, the conical shape is sharper toward the end to facilitate insertion into the additive inlet hole. delete The method of claim 1, And a guide baffle is formed around the additive inlet hole on the upper surface of the tub cover to guide the additive falling from the additive storage chamber to the additive inlet hole. The method of claim 9, The guide baffle is a transmissive washing machine, characterized in that the shape becomes wider toward the top. The method of claim 1, In the part corresponding to the additive inflow hole of the additive storage chamber, When the additive contained in the additive storage chamber is more than a certain liquid level, a permeable washing machine, characterized in that the additive siphon for introducing the additive is introduced into the tub cover upper surface. The method of claim 11, Permeable washing machine, characterized in that the storage compartment water supply pipe is connected to one side of the additive storage chamber so that the liquid level of the additive can be supplied through the siphon.

Images