KR100479086B1 - A ventilation apparatus of washer - Google Patents

Abstract

The present invention relates to a ventilator of the washing machine that can prevent bubbles in the tub from being discharged to the outside of the case.

The present invention is a bellows one end is connected to the vent of the tub; A ventilation pipe connected to the other end of the ventilation bellows and mounted to a case; It is configured to include a foam blocking means for preventing the bubbles in the tub to be discharged to the outside of the case through the ventilation bellows and the ventilation pipe, the foam is not discharged to the outside of the case, there is an advantage that can clean the appearance of the case .

Description

A ventilation apparatus of washer

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine for washing laundry, and more particularly, to a ventilator of a washing machine that allows tubs having fresh water to be rotatable and a drum disposed therein so as to communicate with the outside of the washing machine.

In general, a 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 the water and detergent supplied into the tub.

1 is a cross-sectional view showing an example of a washing machine according to the prior art.

Conventional washing machines are provided with a case (2) having a laundry access hole (2a) in the front center, and supported by a spring (3a) or a damper (3b) inside the case (2) and behind the laundry access hole (2a) Tub 4 having an opening hole 4a formed therein, and rotatably disposed inside the tub 4, and opening hole 6a formed at the rear of the laundry access hole 2a to accommodate laundry A drum 6 having a hand 7 formed on a surface thereof, a drive motor 8 mounted on the rear surface of the tub 4 to rotate the drum 6, and a detergent or A water supply device 10 for supplying water, a drainage device 12 for draining the water in the tub 4 to the outside, and water or drum 6 disposed in front of the tub 4 in the tub 4 Gasket 16 to prevent the laundry inside the tub 2 from flowing out between the tub 4 and the cabinet 2, and rotatably mounted on the front surface of the case 2. And a door 18 for opening and closing the interior of the kit (16), comprises a ventilation device 20, which run through the interior of the tub 4 and the outside of the case (2).

The ventilation device 20 is connected to the ventilation bellows 22, one end of which is connected to the ventilation hole 5 protruding from the upper portion of the tub 4, the other end of the ventilation bellows 22 is connected to the back of the case 2 It consists of a ventilation pipe 26 which is fixed to the screw 25 to.

Here, the ventilation bellows 22 is fixed at each of its ends by the ventilation port 5 and the ventilation pipe 26 and a clamp (not shown).

Looking at the operation of the prior art configured as described above are as follows.

After the laundry (m) is put into the drum (6), the door (18) is closed and the washing machine is driven. The inner lower portion of the tub (4) is provided with water supplied from the water supply device (10). The detergent builds up and the drum 6 is submerged in water and detergent.

Then, when the driving motor 8 is driven and the drum 6 is rotated, the detergent dissolved in water is filled with bubbles in the tub 4 and the drum 6 and is filled with the drum. (6) The laundry (m) housed inside is less likely to be stained by the action of water and detergent.

After the washing stroke is completed, the contaminated water in the tub 4 is drained to the outside of the case 2 by the drainage device 12, and a rinsing stroke for rinsing the remaining foam in the laundry m. In order to dehydrate the laundry, the dehydration process proceeds in sequence.

On the other hand, when the door 18 is closed after the child enters the drum 6, the front of the drum 6 is sealed by the gasket 16 and the door 18, but the drum 6 The child inside is able to breathe through the manual (7) of the drum (6), and the ventilator (20).

However, in the ventilator 20 of the conventional washing machine, the foam in the tub 4 flows through the vent hole 5, the vent bellows 22, and the vent pipe 26 to the rear surface of the case 2, and thus the case. There is a problem of contaminating the back of (2).

In addition, since the ventilation pipe 26 is fastened to the rear surface of the case 2 with the screw 25, the assembly of the ventilation pipe 26 is inconvenient and takes a long time to assemble the ventilation pipe 26.

The present invention has been made to solve the above problems of the prior art, an object of the present invention is to provide a ventilator of the washing machine so that the bubbles in the tub is not discharged to the outside of the case.

Ventilation device of the washing machine according to the present invention for solving the above problems is a vent formed on one side of the tub so that the air in and out of the tub; A ventilation bellows having one end connected to the ventilation hole and configured to flow when the tub is vibrated; A ventilation pipe mounted on a case which is connected to the other end of the ventilation bellows and forms an exterior of a washing machine; It characterized in that it comprises a foam blocking means for preventing the bubbles in the tub from being discharged to the outside of the case through the ventilation bellows and the ventilation pipe.

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

Figure 2 is a partially cutaway perspective view of one embodiment of a washing machine according to the present invention, Figure 3 is a cross-sectional view showing the internal configuration of one embodiment of the washing machine according to the present invention.

As shown in FIG. 2 and FIG. 3, the washing machine according to the present embodiment includes a case 52 having a laundry access hole 52a formed at the center of the front surface thereof, and a spring 63a or a damper formed inside the case 2. 63b) and a tub 64 having an opening hole 64a formed at the rear of the laundry access hole 52a, and rotatably disposed inside the tub 64 and at the rear of the laundry access hole 52a. An opening hole 66a is formed in the drum to accommodate laundry, and a drum 66 having a hand 67 formed on a circumferential surface thereof, and a driving motor mounted to the rear surface of the tub 64 to rotate the drum 66. 68), a water supply device 70 for supplying detergent or water into the tub 64, a drainage device 72 for draining the water in the tub 64 to the outside, and the tub 64 A gasket 76 disposed at the front to prevent water in the tub 64 or laundry in the drum 66 from spilling between the tub 64 and the cabinet 62. And a door 78 rotatably mounted on the front surface of the case 52 and opening and closing the inside of the gasket 76 and the tub 64 while allowing the inside of the tub 64 to communicate with the outside of the case 52. And a ventilator 80 to prevent bubbles in 64 from discharging out of the case 52.

The case 52 is a cabinet 53, a cabinet cover 56 disposed in front of the cabinet 10, the laundry access hole 52a is formed and the door 78 is rotatably mounted, The top plate 58 is disposed on the upper side of the cabinet 53 and the control panel 57 for driving operation of the washing machine is mounted on the rear surface of the cabinet 53, and is coupled to the lower side of the cabinet 53 to form the bottom surface of the washing machine. The base 59 is comprised.

The ventilation device 80 is a ventilation bellows 82, one end of which is connected to the ventilation port 65 of the tub 64, the other end of the ventilation bellows is connected to the ventilation pipe 86 mounted on the case, and the tub ( 64 is formed of foam blocking means for preventing the bubbles from being discharged to the outside of the case 52 through the ventilation bellows 82 and the ventilation pipe 86.

Here, the ventilation bellows 82 are connected such that each of the ends thereof surrounds the ends of the ventilation holes 65 and the ventilation pipes 86, and the ventilation bellows so as not to be separated from the ventilation holes 65 and the ventilation pipes 86. (82) A clamp (not shown) is fixed to each of the outer peripheral surface of the end portion.

4 is an enlarged cross-sectional view of portion A of FIG. 3, FIG. 5 is a cross-sectional view taken along line BB of FIG. 4, FIG. 6 is an enlarged cross-sectional view when bubbles are filled in the tub according to the present invention, FIG. 8 is an enlarged cross-sectional view, and FIG. 8 is a front view of the ventilation pipe according to the present invention.

As shown in FIGS. 4 to 6, the foam blocking means is floated by bubbles rising in the tub 64, and the float 90 is fixed to an upper end of the float 90. Or a rubber stopper 100 which blocks the ventilation bellows 90 when raised, and a guide rib 110 protruding from the inner circumferential surface of the vent 65 of the tub 64 to guide the lifting and lowering of the float 90. 7 and 8, the inner bottom of the ventilation pipe 82 includes ribs 130 that protrude vertically toward the center of the ventilation pipe 82.

Here, the float 90 has an outer circumferential surface upper end stepped protrudingly, the rubber stopper 100 of the float 90 so as to be fitted around the upper surface and the step portion 92 of the float 90 The diameter is made larger than the top and the edge 102 is made of 'c' cross section.

In addition, the float 90 and the rubber stopper 100 protrude convexly toward the upper end 94, 104.

The guide rib 120 guides the lifting and lowering of the float 90 and the stepped portion 102 at which the edge 102 of the rubber stopper 100 is raised when the float 90 and the rubber stopper 100 descend. 122 is formed, and the distance t2 from the rubber stopper 100 is larger than the distance t1 from the float 90.

Looking at the operation of the present invention configured as described above are as follows.

First, after the laundry (m) is put into the drum 66, the door 78 is closed and the control panel 57 is operated to drive the washing machine, the water supply device 70 is water and detergent To the inside of the tub 64, the supplied water and detergent are collected in the inner lower portion of the tub (64).

At this time, the lower portion of the drum 66 is immersed in water in which detergent is dissolved, and the water in which detergent is dissolved in the tub 64 is internal to the drum 66 through a hand 67 formed in the drum 66. Is introduced into the laundry (m).

Then, when the driving motor 68 is driven to rotate the drum 66, bubbles are filled in the tub 64 and the drum 66, and the laundry (m) inside the drum 66 is filled. ) Will be removed by the action of water and detergent.

On the other hand, during the washing stroke as described above, the bubbles in the tub 64 ascends the float 90 as a portion of the bubble up to the vent (65).

At this time, the float 90 is raised with the rubber stopper 100 while being guided by the guide rib 120, the rubber stopper 100 is raised with a certain height as shown in Figure 5 As such, blocking the interior of the ventilation bellows 82 prevents the flow of bubbles through the ventilation bellows 82 and the ventilation pipes 86.

Although a small amount of foam flows into the ventilation pipe 86 along the inner circumferential surface of the ventilation bellows 82 even though the rubber stopper 100 blocks the inside of the ventilation bellows 82, as shown in FIG. Since it is blocked by the rib 130 formed in the ventilation pipe 86, it does not flow out of the case 52.

On the other hand, when the bubble is removed in the tub 64, the rubber stopper 100 and the float 90 is dropped by its own weight.

At this time, the float 90 has its outer peripheral surface guided by the guide ribs 120, but the rubber stopper 100 is lowered without being in contact with the guide ribs 120, and the rubber stopper 100 The edge 102 is raised above the stepped portion 122 of the guide rib 120, as shown in FIGS. 4 and 6.

On the other hand, after the washing stroke is finished, the contaminated water in the tub 64 is drained to the outside of the case 52 by the drainage device 72, and rinsing to rinse the foam remaining in the laundry m. The stroke is followed by a dehydration stroke for dewatering the laundry.

When the child enters into the drum 66 of the washing machine as described above and the door 78 is closed, the front of the drum 66 is closed by the gasket 76 and the door 78, The child has a hand 67 of the drum 66, a gap t3 between the float 90 and the rubber stopper 100 and the inner circumferential surface of the vent 65, the vent bellow 82 and the vent pipe 86 ) Enables breathing.

On the other hand, the ventilation pipe 86 according to the present invention is inserted into the pipe insertion hole (52b) formed in the case 52 after a predetermined depth and is fitted by turning.

Figure 9 is an exploded perspective view of the main part before the ventilation pipe according to the present invention is coupled to the cabinet, Figure 10 is a perspective view of the main part is inserted into the cabinet according to the present invention, Figure 11 is a ventilation according to the present invention Fig. 12 is a sectional view taken along the line DD of Fig. 11, and Fig. 13 is a cross sectional view taken along the line EE of Fig. 11.

9 to 13, the ventilation pipe 86 is flanged 87 disposed to be caught at the periphery of the pipe insertion hole 52b when inserted into the pipe insertion hole 52b, and the ventilation. On the outer circumferential surface of the pipe 86, a plurality of hook protrusions 88 protruding in a 'b' shape are formed.

In addition, the case 52 includes a plurality of through grooves 54 formed at the periphery of the pipe insertion hole 52b so that the hook protrusion 88 may pass through the front and rear direction when the ventilation pipe 86 is inserted. When the ventilation pipe 86 is rotated, a bent portion bent toward the inside of the case 52 between the plurality of through grooves 54 so that one end 55a is enclosed by the hook protrusion 88. 55 is formed.

On the other hand, the flange 87 has a cylindrical projection (89a) protrudes in the center of the front upper portion, and the first and second hemispherical protrusions (89b, 89c) protrude from the front lower both sides by a predetermined distance.

In addition, the case 52 has an insertion hole 53a into which the cylindrical protrusion 89a is inserted in the upper center of the pipe insertion hole 52b, and when the ventilation pipe 86 is inserted and rotated. The cylindrical projection (89a) is caught in the insertion hole (53a) to prevent any rotation of the ventilation pipe 86, the hemispherical projections (89b, 89c) on both lower sides of the pipe insertion hole (52b) The engaging holes 53b and 53c at which the front ends of the plurality of fastening holes are formed so that the flange 87 is spaced apart from the rear surface of the case 52 when the ventilation pipe 86 is rotated after the insertion of the ventilation pipe 86. The pipe 86 is not shaken.

On the other hand, the ventilation pipe 86 has' Ｕ'-shaped elastic holes (91, 92, 93) are formed in the periphery of the cylindrical projection (89a) and the periphery of the first and second hemispherical projections (89b, 89c), respectively. During the rotation of the ventilation pipe 86, the cylindrical protrusions 89a and the first and second hemispherical protrusions 89b and 89c are pushed to the rear of the case 52 to help smoothly rotate the ventilation pipe 86. When the cylindrical protrusions 89a and the first and second hemispherical protrusions 89b and 89c reach the rear positions of the insertion hole 53a and the locking holes 53b and 53c, the cylindrical protrusions 89a and the first and second hemispherical protrusions 89b and 89c return to their original positions. It is inserted or locked into the insertion hole 53a and the locking holes 53b and 53c.

Ventilation device of the washing machine according to the present invention configured as described above has the advantage that the foam in the tub can be discharged to the outside of the case through the ventilation bellows and the ventilation pipe to clean the appearance of the case.

In addition, a foam blocking means is floated by the foam filling in the tub, a rubber stopper fixed to the upper end of the float to block the ventilation bellows when the float is raised, the vent of the tub to guide the lifting of the float Consists of guide ribs protruding on the inner circumferential surface has the advantage that the blocking of bubbles and the ventilation of the tub can be made accurately and quickly.

In addition, the float has an outer circumferential surface of the upper end protrudes stepped, the rubber stopper has a diameter larger than the upper end of the float and the edge is made of 'c' cross section so as to be fitted around the upper surface and the stepped portion of the float There is an advantage that the float and rubber stopper can be easily fixed.

In addition, the float and the rubber stopper has an advantage that the upper end is convexly protruded toward the center portion to close the bellows without any gap.

In addition, the guide rib guides the lifting and lowering of the float, and the step of raising the edge of the rubber stopper when the float and the rubber stopper is formed, and the gap with the rubber stopper is formed larger than the gap with the float. There is an advantage to prevent the malfunction that can occur when the rubber stopper and the guide rib frequently contact and increase the life of the rubber stopper.

In addition, the foam blocking means is composed of a rib protruding toward the center of the ventilation pipe in the inner lower portion of the ventilation pipe, there is an advantage that can prevent the outflow of foam with a simple structure.

In addition, since the ventilation pipe is inserted into the pipe insertion hole formed in the case to a predetermined depth and then rotated, there is an advantage that the assembly process of the ventilation pipe can be made quickly and simply.

1 is a cross-sectional view showing an example of a washing machine according to the prior art,

2 is a partially cutaway perspective view of one embodiment of a washing machine according to the present invention;

3 is a cross-sectional view of an embodiment of a washing machine according to the present invention;

4 is an enlarged cross-sectional view of portion A of FIG. 3;

5 is a cross-sectional view taken along the line B-B of FIG.

6 is an enlarged cross-sectional view when bubbles are filled in a tub according to the present invention;

7 is an enlarged cross-sectional view of part C of FIG. 3;

8 is a front view of the ventilation pipe according to the present invention,

9 is an exploded perspective view of main parts before the ventilation pipe according to the present invention is coupled to the cabinet;

10 is a perspective view illustrating main parts of a ventilation pipe inserted into a cabinet according to the present invention;

11 is a perspective view showing a main part of the ventilation pipe is inserted into the cabinet according to the present invention,

12 is a cross-sectional view taken along the line D-D of FIG. 11;

FIG. 13 is a cross-sectional view taken along the line E-E of FIG. 11.

<Explanation of symbols on main parts of the drawings>

52: case 52a: laundry entrance hall

52b: pipe insertion hole 53: cabinet

53a: insertion hole 53b, 53c: locking hole

54: through groove 55: bent portion

56: cabinet cover 58: top plate

64: tub 66: drum

64a, 66a: opening hole 67; handmade

68; Drive motor 78: door

80: ventilation 82: ventilation bellows

86: ventilation pipe 87: flange

88: hook turning 89a; Cylindrical projection

89b, 89c: hemispherical protrusion 90: float

91, 92, 93: elastic hole 100: rubber stopper

120: guide rib 122: stepped portion

130: rib

Claims (13)

A vent formed at one side of the tub to allow air to enter and exit the tub; A ventilation bellows having one end connected to the ventilation hole and configured to flow when the tub is vibrated; A ventilation pipe mounted on a case which is connected to the other end of the ventilation bellows and forms an exterior of a washing machine; And a foam blocking means for preventing bubbles in the tub from being discharged out of the case through the ventilation bellows and the ventilation pipe. The method of claim 1, The foam blocking means includes a float which is lifted by bubbles filling up the tub, a rubber stopper fixed to an upper end of the float to block the ventilation bellows when the float is raised, and an inner circumference of the vent of the tub to guide the lift of the float. Ventilation device of a washing machine, characterized in that consisting of guide ribs protruding in the. The method of claim 2, The float protrudes stepped on the outer circumferential surface, The rubber stopper is a ventilation device of a washing machine, characterized in that the diameter is larger than the top of the float and the edge is formed of the '' 'so as to surround the upper surface and the stepped portion of the float. The method of claim 2 or 3, The float and the rubber stopper ventilator of the washing machine, characterized in that the top protrudes convex toward the center. The method of claim 2, The guide rib guides the lifting and lowering of the float, and the ventilation device of the washing machine, characterized in that a stepped portion is formed to raise the edge of the rubber stopper when the float and the rubber stopper descend. The method according to claim 2 or 5, The guide rib is a ventilation device of the washing machine, characterized in that the gap with the rubber stopper is formed larger than the gap with the float. The method of claim 1, The foam blocking means is a ventilation device of the washing machine, characterized in that the rib protruding toward the center of the ventilation pipe from the inner lower portion of the ventilation pipe. The method of claim 1, The ventilation pipe is a ventilation device of the washing machine, characterized in that it is inserted into the pipe insertion hole formed in the case after a predetermined depth. The method of claim 8, The ventilation pipe has a flange arranged to be caught in the periphery of the pipe insertion hole when inserted into the pipe insertion hole, a plurality of hook protrusions protruding in the shape of the cross-section 'b' shape on the outer peripheral surface of the ventilation pipe, The case includes a plurality of through grooves formed in the periphery of the pipe insertion hole so that the hook protrusion can penetrate in the front and rear direction when the ventilation pipe is inserted, and one end of the case is surrounded by the hook protrusion when the ventilation pipe is rotated. Ventilation device of the washing machine, characterized in that the bent portion bent toward the inside of the case between the plurality of through grooves. The method of claim 9, A cylindrical protrusion protrudes on one side of the front side of the flange, One side of the case around the pipe insertion hole is a ventilation device of the washing machine, characterized in that the insertion hole is inserted into the cylindrical projection is formed so as to prevent any rotation of the ventilation pipe when the ventilation pipe is inserted and rotated. The method of claim 10, A periphery of the cylindrical projection is characterized in that the '탄성' shaped elastic hole is formed in the ventilation device of the washing machine. The method of claim 9 or 10, Hemispherical protrusions protrude on the other front side of the flange, The other side of the case around the pipe insertion hole is a ventilation device of the washing machine, characterized in that the engaging hole is formed when the end of the hemispherical protrusion is caught when the ventilation pipe is inserted and rotated. The method of claim 12, Ventilation device of the washing machine, characterized in that the 'Ｕ' shaped elastic hole is formed around the hemispherical protrusion.