KR100928256B1 - Foam Blocking Structure of Drum Washing Machine - Google Patents

Abstract

The present invention relates to a foam blocking structure of a drum washing machine that prevents bubbles from filling through a cylindrical hole of a tub.

The present invention is a bellows one end is connected to the cylindrical sphere protruding in the tub; A float which is lifted by bubbles filling the tub and blocks the inner circumferential surface of the bellows; An elevating guide formed in the cylindrical hole of the tub to guide the elevating of the float; It is configured to include a rubber ring fitted to the float so that the float can be buffered on the lifting guide upper side, there is an advantage that can prevent the outflow of foam filling from the tub, and clean the appearance of the washing machine.

Description

A bubble protecting structure of drum type washer

1 is a partially cutaway perspective view of an embodiment of a drum washing machine according to the present invention.

2 is a cross-sectional view showing the inside of the cylindrical water supply hole of the tub according to the present invention.

Figure 3 is an internal cross-sectional view of the water supply cylindrical sphere when bubbles in the tub according to the present invention.

4 is a plan view of a cylindrical water supply port for tubs according to the present invention.

5 is a cross-sectional view showing the inside of the ventilation cylinder of the tub according to the present invention.

Figure 6 is a cross-sectional view of the inside of the cylindrical cylinder for ventilation when bubbles in the tub according to the present invention.

7 is a plan view of the cylindrical cylinder for ventilation of the tub according to the present invention.

8 is another embodiment of the foam blocking structure according to the present invention installed in the cylindrical water supply port.

9 is a plan view of the cylindrical water supply port of FIG.

10 is another embodiment of the foam blocking structure according to the present invention installed in the cylinder for ventilation.

FIG. 11 is a plan view of the ventilating cylinder port of FIG. 10.                 

<Explanation of symbols on main parts of the drawings>

6: Tub 7: cylinder for water supply

8: drum 14: detergent container

22: inlet bellows 24: round rib

30: float 32: curved portion

34: horizontal part 36: sealing

40; Elevation Guide 42: Cylindrical Section

44: rib portion 50: rubber ring

52: ring-shaped buffering projection 70: ventilation cylinder

60,110: plate-shaped member

The present invention relates to a drum washing machine, and more particularly, to a foam blocking structure of a drum washing machine that prevents bubbles from filling through a cylindrical hole of a tub.

In general, a drum washing machine is a device for washing laundry through a process of washing, rinsing, and dehydrating to remove contamination from clothes, bedding, and the like accommodated in the drum by using water and detergent supplied into the tub.

The conventional drum washing machine supplies detergent and water into the tub through an inlet bellows connecting the outlet of the detergent container and the tub for water supply of the tub, and the laundry inside the drum is washed while the drum inside the tub is rotated.

However, the conventional drum washing machine has a problem that bubbles generated in the tub when the drum is rotated is leaked into the detergent container through the water supply cylinder and the inlet bellows of the tub to contaminate the detergent container.

In addition, the drum washing machine forms a cylinder for ventilation in the tub in case the child enters the inside of the drum, and connects a ventilation bellows to the ventilation cylinder to allow the child in the drum to breathe. When the drum is rotated, there is a problem that the foam in the tub flows out of the washing machine through the ventilation cylinder and the ventilation bellows.

The present invention has been made to solve the above problems of the prior art, to provide a foam blocking structure of the drum washing machine that can prevent the bubbles in the tub from leaking to the outside through the tubing inlet and inlet bellows of the tub. There is this.

It is also an object of the present invention to provide a foam blocking structure of a drum washing machine that can prevent bubbles in the tub from leaking out through the tub and the ventilation bellows of the tub.

Foam blocking structure of the drum washing machine according to the present invention for solving the above problems is a bellows one end is connected to the cylindrical hole protruding in the tub; A float which is lifted by bubbles filling the tub and blocks the inner circumferential surface of the bellows; A lifting guide formed in the cylindrical hole of the tub to guide the lifting of the float; It characterized in that it comprises a rubber ring fitted to the float so that the float can be raised buffered on the lifting guide upper side.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a partially cutaway perspective view of an embodiment of a drum washing machine according to the present invention.

In the drum washing machine of the embodiment of the present invention, as shown in FIG. 1, the door 4 is opened and closed at the front of the case 2, and the tub 6 is supported inside the case 2. And a drum (8) for receiving laundry inside the tub (6) and rotating by a driving motor (not shown) to wash, rinse and dehydrate the laundry.

A gasket 6a is mounted at the front of the tub 6 to prevent the outflow of water or laundry, and a cylindrical water supply 7 for supplying water or detergent is formed at one upper side of the tub 6. .

In addition, a water supply hose 12 for supplying external water and a detergent or a softener necessary for washing laundry are stored in the upper part of the case 2, and a water supply passage 14a for washing, rinsing, and dehydration is stored. Is formed and the detergent container 14 having a discharge port 14b formed at the end of the water supply passage 14a, and the detergent or water discharged to the discharge port 14b of the detergent container 14 through the tub through the water supply cylinder 7 An inlet bellows 22 which guides into the interior of the 6 is arranged so that water or detergent is contained inside the tub 6.

On the other hand, the drum 8 is formed with a plurality of hands (8a) around the water so that the water or detergent contained in the tub (6) is soaked in the laundry, and the laundry is accommodated on the inner peripheral surface so that it can be lifted and dropped The lift 8b is mounted.

Reference numeral 70 is a ventilation cylinder port formed on the other side of the upper tub 6, reference numeral 72 is one end is connected to the ventilation cylinder port 70, the inside of the tub (6) outside the washing machine Ventilation bellows that allow air to pass through.

In addition, the washing machine is because the water and detergent contained in the tub (6) can be turned into a bubble to flow to the outside through the water supply cylinder 7 and the ventilation cylinder (70) the water supply cylinder ( 7) and the inside of the ventilation cylinder port 70 has a bubble blocking structure to prevent the outflow of foam.

2 is a cross-sectional view showing the inside of the tub for water supply of the tub according to the invention, Figure 3 is a cross-sectional view of the inside of the tub for water supply when bubbles in the tub according to the invention, Figure 4 is in accordance with the present invention It is a top view of the cylindrical cylinder for water supply of a tub.

As shown in FIGS. 2 to 4, the bubble blocking structure of the water supply cylinder 7 according to the present invention is lifted by bubbles filling up in the tub 6 to block the inner circumferential surface of the inlet bellows 22. The lift 30, the lifting guide 40 formed in the cylindrical water supply hole 7 of the tub 6 to guide the lifting and lowering of the float 30, and the float 30 is the lifting guide 40 It is configured to include a rubber ring 50 fitted to the float 30 so as to be buffered on the upper side.

Here, the inlet bellows 22 is connected with a detergent container and a clamp (not shown) so that an upper end thereof communicates with an outlet of the detergent container, and a lower end thereof is connected by a clamp 23 to an upper end of the water supply cylinder 7. Circular ribs 24 protrude from the inner circumferential surface to be in surface contact with the float 30 raised by the bubbles.

The circular rib 24 faces the center of the inlet bellows 22 and is formed in a ring shape.

In addition, the float 30 is smaller than the inner diameter of the inlet bellows 22 and is formed in a convex shape upwardly convex upwardly, and the inner diameter of the inlet bellows 22 at the edge of the curved portion 32. The horizontal portion 34 protrudes larger and is in surface contact with the inlet bellows 22 and the circular rib 24, and protrudes downwardly from the center of the lower surface of the curved portion 32 to be guided to the lifting guide 40. It consists of 36.

In addition, the elevating guide 40 is between the cylindrical portion 42 is hollow inside to guide the vertical movement of the rod portion 36, the outer circumference of the cylindrical portion 42 and the inner peripheral surface of the cylindrical port 42 It consists of a plurality of ribs 44 arranged radially in the.

The rib portion 44 has a portion close to the inner circumferential surface of the water supply cylindrical sphere 7 is formed horizontally, and increases in height toward the outer circumferential side of the cylindrical portion 42.

In addition, the rubber ring 50 is fitted on one side of the outer circumferential surface of the rod 36, and a ring-shaped buffer protrusion 52 protrudes at a lower end thereof, or a ring-shaped elastic groove 54 is formed at the lower inner circumferential side thereof.

On the other hand, the float 30 may be raised by the air flow inside the cylinder 7 in addition to the above-mentioned foam. For example, when the door 4 of the washing machine closes quickly, the air of the tub 6 and the drum 8 flows rapidly through the cylindrical opening 7 due to the movement of the door 4. The float 30 thus closes the bellows 22. However, due to the closing of the bellows 22, the inside of the tub 6 and the drum 8 is sealed and instantaneously generates pressure therein, and the door 4 is not closed due to such pressure. Therefore, preferably as shown in Figures 8 and 9, the plate 30, more precisely below the curved portion 32, the plate-shaped member so as not to be affected by the air flow inside the cylindrical sphere (7) It is preferable that 60 is provided.

8 and 9, the plate member 60 partially closes the cylindrical port 7 such that air flow does not directly reach the curved portion 32. However, such a plate-like member 60 allows the flow of water and air to be made smoothly. In addition, the plate member 60 is preferably disc-shaped so as to approximately match the shape of the curved portion (32). In addition, the size of the disc member 60 is preferably equal to or larger than the size of the lower end portions of the curved surfaces 32 facing each other in order to block and bypass the sudden air flow.

In addition, the plate member 60 is seated on the rib 44 and has a plurality of slots (60a) to be inserted into the rib around the cylindrical portion 42 for a more stable mounting. The plate member 60 further includes a leg 61 extending from the bottom thereof and a hook 62 formed at the end of the leg, as shown. The leg 61 is supported on the outer circumferential surface of the cylindrical portion 42 to prevent the plate member 60 from being shaken, and the hook 62 is caught by the lower end of the cylindrical portion 42 to form the plate member 60. ) Is fixed in the cylindrical opening (7).

On the other hand, an elastic material layer 37 may be formed on the outer circumferential surface of the rod 36. The elastic layer 37 may absorb the shock between the cylindrical portion 42 and the rod 36 when the float 30 is raised and lowered, thereby significantly reducing noise.

Looking at the operation of blocking the bubble inside the water supply cylinder of the present invention configured as described above are as follows.

First, the water and the detergent discharged from the detergent container 14 during the water supply stroke for the washing stroke is put in the tub 6 through the inlet bellows 22 and the water supply cylindrical opening 22 in turn, the drum It is introduced into the drum 8 through the hand 8a of 8 so as to be soaked in the laundry.

In this case, as shown in FIG. 2, the float 30 is raised above the lifting guide 40 with the rubber ring 50 therebetween, and water and detergent dropped to the curved portion 32. Is naturally flowing down the top surface of the curved portion (32).

After the water supply administration of the water and the detergent is performed for a predetermined time, the drive motor is driven to rotate the drum 8, washing the laundry while foaming inside the tub 6 and the drum (8). This is done.

At this time, some of the bubbles in the tub (6) is filled up to the inside of the water supply cylindrical opening (7), and passes through the rib portion 44 to raise the float (30).

As shown in FIG. 3, the float 30 rises a predetermined height while being guided by the cylindrical portion 42 of the elevating guide 40, and the horizontal portion 34 has the inlet bellows ( 22 is engaged while being in surface contact with the circular rib 24 to block the inside of the inlet bellows 22.

Here, since the curved portion 32 of the float 30 is smaller than the inner diameter of the inlet bellows 22 and is formed convexly upward in a hemispherical shape, the curved portion 32 is easily inserted into the inlet bellows 24, and the horizontal portion The 34 and the circular ribs 24 have a large contact area, preventing leakage of bubbles.

Then, when bubbles are removed in the tub 6, the float 30 falls by its own weight, and the rubber ring 50 fitted to the rod 36 of the float 30 has a lower end thereof. It is placed on the upper end of the cylindrical portion 42 of the lifting guide.

At this time, the rubber ring 50 reduces the impact or noise that may be generated between the cylindrical portion 42 while the ring-shaped buffer projection 52 is instantaneously bent or compressed. The ring-shaped buffer protrusion 52 reduces the impact or noise that may be generated between the cylindrical portion 42 while being bent or compressed sideways instantaneously. The ring-shaped elastic groove 54 is a portion to facilitate the deformation of the ring-shaped buffer protrusion 52 is bent or compressed. That is, the ring-shaped elastic groove 54 is formed so that the thickness of the ring-shaped buffer protrusion 52 is slightly thinner than the thickness of the upper portion of the rubber ring 50 serves to facilitate deformation.

5 is a cross-sectional view showing the inside of the tub for ventilation in accordance with the present invention, Figure 6 is a cross-sectional view of the inside of the tub for ventilation when bubbles in the tub according to the invention, Figure 7 is in accordance with the present invention A top view of the tub for ventilation of the tub.

5 and 7, the bubble blocking structure of the ventilating cylinder is lifted by bubbles rising in the tub 6 to block the inner circumferential surface of the venting bellows 72, and An elevating guide 90 formed in the ventilating cylinder 72 of the tub 6 to guide the elevating of the float 80, and the float 80 is mounted to be buffered above the elevating guide 90. It is configured to include a rubber ring 100 to be fitted to the float 80.                     

Here, one end of the ventilation bellows 72 is connected to the ventilation pipe (not shown) fixed to the back of the case (2) by a clamp and the other end is connected to the upper end of the ventilation sphere (70) by the clamp (73) Circular ribs 74 protrude from the inner circumferential surface to be in surface contact with the float 80.

The circular ribs 74 are formed in a ring shape toward the center of the ventilation bellows 72.

In addition, the float 80 has a curved portion 82 smaller than the inner diameter of the ventilation bellows 72 and is convex upwardly in a hemispherical shape, and an inner diameter of the ventilation bellows 72 at the edge of the curved portion 82. It protrudes larger and horizontally contacts the inlet bellows 72 and the circular ribs 74 and the bottom portion of the curved portion 82 protrudes downward from the center of the lower surface to guide the lifting guide 90 and the rod. It consists of 86.

In addition, the lifting guide 90 has a cylindrical portion 92 having a hollow inside to guide the vertical movement of the rod portion 86, between the outer circumference of the cylindrical portion 92 and the inner circumferential surface of the cylindrical opening 92. It consists of a plurality of ribs 94 arranged radially in the.

The rib portion 94 has a portion close to the inner circumferential surface of the ventilating cylinder 70 is formed horizontally, the height is increased toward the outer circumferential side of the cylindrical portion (92).

In addition, the rubber ring 100 is fitted to one side of the outer circumferential surface of the rod 36, and a ring-shaped buffer protrusion 102 protrudes at a lower end thereof or a ring-shaped elastic groove 104 is formed at the lower inner circumferential side thereof.

In addition, as shown in FIGS. 10 and 11 for the same reason as the anti-foaming structure for water supply, the plate-shaped member 100 is disposed below the curved portion 82 so as not to be affected by the air flow in the cylindrical hole 70. Is installed.

10 and 11, the plate member 110 partially closes the cylindrical port 70 such that an air flow does not directly reach the curved portion 82. However, such a plate-shaped member 110 allows the flow of water and air to be made smoothly. The plate member 110 is preferably in the shape of a disc to approximately match the shape of the curved portion 82. In addition, the size of the disk member 110 is preferably equal to or larger than the size of the lower end of the curved surface 82 facing each other in order to block and bypass the sudden air flow.

In addition, the plate member 110 is seated on the rib 94 and has a plurality of slots (110a) to be inserted into the rib around the cylindrical portion 92 for a more stable mounting. The plate member 110 further includes a leg 111 extending from the bottom thereof and a hook 112 formed at the end of the leg, as shown. The leg 111 is supported on the outer circumferential surface of the cylindrical portion 92 so that the plate member 110 is not shaken, and the hook 112 is caught by the lower end of the cylindrical portion 92 and the plate member 100 is fixed. ) Is fixed in the cylindrical opening 70.

On the other hand, an elastic material layer 87 may be formed on the outer circumferential surface of the rod 86. The elastic material layer 87 may absorb the shock between the cylindrical portion 92 and the rod 86 when the float 80 is raised and lowered to significantly reduce noise.

Looking at the bubble blocking operation of the cylindrical cylinder for ventilation according to the present invention configured as described above are as follows.                     

When the drum 8 rotates, some of the bubbles in the tub 6 are filled up to the inside of the ventilation cylinder 70, and pass through the ribs 94 to pass the float 80. Raise.

As shown in FIG. 6, the float 30 rises a predetermined height while the rod portion 86 is guided by the cylindrical portion 92 of the lifting guide 90, and the horizontal portion 84 has the inlet bellows ( The inner surface of the inlet bellows 72 is blocked while being in surface contact with the circular rib 74 of 72.

Here, the curved portion 82 of the float 80 is easily inserted into the inlet bellows 74.

Then, when bubbles are removed in the tub 6, the float 80 falls by its own weight, and the rubber ring 100 fitted to the rod 86 of the float 80 has a lower end. It is placed on the upper end of the cylindrical portion 92 of the lifting guide.

The foam blocking structure of the washing machine according to the present invention configured as described above is connected to the bellows of the cylindrical cylinder of the tub, the inside of the cylinder is raised by the foam filling in the tub to block the bellows, the cylindrical Lifting guide is formed in the sphere to guide the lifting of the float, the rubber ring is fitted to the float, there is an advantage that can clean the appearance of the washing machine to prevent the outflow of foam rising from the tub.

In addition, since the bellows protrudes a circular rib on the inner circumferential surface and contacts the float with a large area, there is an advantage of preventing leakage of bubbles.

The float may have a curved surface portion smaller than the inner diameter of the bellows and convex, a horizontal portion protruding larger than the inner diameter of the bellows at the edge of the curved portion, and a surface portion contacting the bellows, and protruding downward from the center of the lower surface of the curved portion. It is composed of a rod guided to the lifting guide and the rubber ring is fitted on one side of the outer circumference, the malfunction is low because the curved portion is easily inserted into the bellows when the float is raised, the horizontal portion is a circular rib and a large area Since it can be contacted to prevent the leakage of bubbles, and only the rod is guided by the lifting guide has the advantage of minimizing noise generation and malfunction.

Finally, since the plate-shaped member is installed in the lower portion of the float, the float can be prevented from being closed due to the air flow in the cylindrical sphere. Therefore, when the door of the washing machine is closed in a hurry, the present invention prevents the door from closing due to the pressure generated inside the drum by closing the bellows.

Claims (16)

A bellows having one end connected to a cylindrical hole protruding from the tub; A float which is lifted by bubbles filling the tub and blocks the inner circumferential surface of the bellows; An elevating guide formed in the cylindrical hole of the tub to guide the elevating of the float; And a rubber ring fitted to the float so that the float can be cushioned up on the lifting guide. The method of claim 1, The bellows is a foam blocking structure of the drum washing machine, characterized in that the circular rib protrudes on the inner circumferential surface to be in surface contact with the float. The method of claim 2, The circular rib is formed in a ring shape toward the center of the bellows foam blocking structure of the drum washing machine. The method of claim 1, The float is: A curved portion formed smaller than the inner diameter of the bellows and convex; A horizontal portion protruding larger than an inner diameter of the bellows from an edge of the curved portion to be in surface contact with the bellows; The foam block structure of the washing machine, characterized in that the lower surface protrudes from the center of the lower surface is guided to the lifting guide and the rubber ring is fitted on one side of the outer circumference. The method of claim 4, wherein The curved block portion of the washing machine, characterized in that the convex upward convex shape. The method of claim 4, wherein The sealing unit has a foam blocking structure of the washing machine, characterized in that the inner and lower openings. The method of claim 4, wherein The elevating guide is a foam blocker of the drum washing machine, characterized in that it comprises a cylindrical portion hollow inside to guide the vertical movement of the rod, and a plurality of ribs radially disposed between the outer circumference of the cylindrical portion and the inner circumferential surface of the cylindrical sphere. rescue. The method of claim 7, wherein The rib portion of the drum washing machine, characterized in that the portion close to the inner circumferential surface of the cylindrical hole is formed horizontally and the height increases toward the outer circumferential side of the cylindrical portion. The method according to claim 1 or 4, The rubber ring is a foam block structure of the drum washing machine, characterized in that the ring-shaped buffer protrusion protrudes at the bottom. The method according to claim 1 or 4, The rubber ring is a foam block structure of the drum washing machine, characterized in that the ring-shaped elastic groove is formed on the inner peripheral side. The method of claim 4, wherein The outer circumferential surface of the rod portion is foam blocking structure of the drum washing machine, characterized in that covered with a layer of elastic material. The method of claim 4, wherein The foam block structure of the drum washing machine, characterized in that it further comprises a plate-shaped material installed in the lower portion of the float and partially closing the cylindrical sphere. The method of claim 12, The plate member is a foam block structure of the drum washing machine, characterized in that the disk. The method of claim 13, The size of the plate-shaped member is the foam block structure of the drum washing machine, characterized in that the same as or larger than the end surface of the curved portion. The method of claim 12, The plate member further comprises at least one leg extending vertically from the bottom thereof and a foam blocking structure of the drum washing machine, characterized in that it further comprises a hook formed on the leg end and fixed to a portion of the vertical guide. A bellows having one end connected to a cylindrical hole protruding from the tub; A float which is lifted by bubbles filling the tub and blocks the inner circumferential surface of the bellows; An elevating guide formed in the cylindrical hole of the tub to guide the elevating of the float; A rubber ring fitted to the float such that the float is cushioned on the lifting guide; And Foam blocking structure of the drum washing machine, characterized in that formed in the lower portion of the float made of a plate-shaped member to partially close the cylindrical sphere so that the float is not raised by the air flow inside the cylindrical sphere.

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