KR20010111188A - The sealing apparatus for a tilting drum type washer - Google Patents

Abstract

The present invention relates to a leak preventing device of an inclined washing machine. In particular, the washing tank is inclined to form an air gap between the drive shaft and the storage tank in a washing machine inclined by a predetermined angle with respect to the vertical direction to prevent the washing water from leaking. It is related with the leak prevention apparatus of a washing machine.

In the present invention, the washing tank and the storage tank is installed inclined, and in the inclined washing machine configured to rotate the washing tank through a drive shaft is installed in the lower portion of the reservoir tank, washing water between the drive shaft and the reservoir. Sealing means is installed so as not to leak, and sealing means is installed so that airtightness is maintained between the drive shaft and the washing tank; An air gap forming rib protrudes from a bottom of the washing tub so that an air layer forming space is formed on an upper side of the sealing means; The bottom surface of the reservoir is formed with an escape groove so that the end of the air gap forming rib is located, and the remaining surface discharge means is connected to the lowest surface of the escape groove so that residual wash water can be discharged.

Description

The sealing apparatus for a tilting drum type washer}

The present invention relates to a leak preventing device of an inclined washing machine. In particular, the washing tank is inclined to form an air gap between the drive shaft and the storage tank in a washing machine inclined by a predetermined angle with respect to the vertical direction to prevent the washing water from leaking. It is related with the leak prevention apparatus of a washing machine.

1 is a diagram illustrating an internal configuration of a washing machine driven washing machine, and FIG. 2 is a detailed view of portion 'A' of FIG. 1.

The prior art washing tank driven washing machine includes a case (10) forming an outline, a storage tank (21) and a washing tank (22) in which the laundry is washed inside the case (10), and the storage tank (21). It is composed of four hook members 30 to support the case 10 and at the same time perform a damper function, and a drive motor 30 installed in the lower portion of the reservoir 21 to drive the washing tank 22 to rotate.

The lower portion of the water tank 21 is provided with a drain hose 26 and a drain valve 27 for discharging the wash water, and the washing blade 25 for increasing the washing efficiency on the bottom surface of the washing tank 22 is provided It is provided.

The drive motor 30 is composed of a stator 31 fixed to the lower portion of the reservoir 21, a rotor 33 coupled to the drive shaft 35 around the stator 31, the drive shaft ( 35 passes through the reservoir 21 and is coupled to the washing tank 22.

Here, the hub 23 is installed on the bottom surface of the washing tank 22 so as to distribute and transmit the rotational force of the driving shaft 35 to the washing tank 22, and the driving shaft 35 is rotatably installed on the storage tank 21. A bearing 37 is installed to support it.

In particular, the reservoir 21 stores the washing water for washing the laundry, and the sealing member 40 may prevent the washing water from leaking out of the reservoir 21 between the reservoir 21 and the driving shaft 35. ) Is installed.

Referring to FIG. 2, the sealing member 40 has a plurality of lip portions 41 in close contact with the drive shaft 35 in a state where the sealing member 40 is fixed to the water storage tank 21 above the bearing 37. This will prevent leakage.

However, the leak prevention structure according to the prior art as described above is configured so that the sealing member 40 fixed to the reservoir 21 side is in close contact with the drive shaft 35 of the rotating body to prevent the wash water from leaking. Because of this, if the lip portion 41 of the sealing member 40 is worn by frictional heat with the driving shaft 35, there is a problem in that it does not sufficiently perform the leakage preventing function.

In particular, when the water storage tank 21 and the washing tank 25 are installed to be inclined by a predetermined angle with respect to the vertical direction, as shown in FIG. 2, the air gap G formed in the shaft 23a of the hub 23 is reliable. There is a problem that can not be expected to leak.

In addition, when the protruding length of the shaft portion 23a of the hub 23 is increased to form a sufficient air gap G, the distance between the washing tank 25 and the water storage tank 21 is increased so that the overall height of the washing machine is increased. There is a problem that becomes large.

The present invention has been made in order to solve the above problems, and protrudes the air gap forming ribs on the bottom surface of the washing tank so that the air layer forming space is formed on the sealing member of the drive shaft and the escape groove portion in which the air gap forming ribs are located in the reservoir The present invention provides a device for preventing leakage of a tilted washing machine, which can secure a more reliable leak prevention structure without increasing the overall height of the washing machine in a tilted state of the washing tank.

1 is an internal configuration of a washing machine equipped with a leak prevention apparatus according to the prior art,

FIG. 2 is a detailed view of portion 'A' of FIG. 1;

3 is an internal configuration of a tilted washing machine equipped with a leak prevention device according to the present invention,

4 is a detailed view 'B' of FIG.

5 is a front view showing a hub according to the present invention,

Figure 6 is a perspective view of the main portion of the reservoir according to the present invention.

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

50 case 55 hook member

60: reservoir 61: drain passage

61a: drain hole 62a: escape groove

62b: residual water discharge flow path 63: drain hose

64: drain valve 65: washing tub

66: hub 66a: air gap forming rib

66b: Rib 70: Drive Motor

71: stator 73: rotor

75: drive shaft 77: bearing

80: sealing member 81: flexible member

81a, 81b: Lip portion 83: Reinforcing member

90: sealing member

Leakage preventing device of the inclined washing machine according to the present invention for realizing the above problems, the washing tank and the reservoir is installed to be inclined by a predetermined angle in the case, a drive motor is installed in the lower portion of the reservoir to the washing tank through a drive shaft An inclined washing machine configured to rotate, wherein a sealing means is installed between the drive shaft and the water storage tank so that no washing water is leaked, and a sealing means is installed between the drive shaft and the washing tank to maintain airtightness; An air gap forming rib protrudes from a bottom of the washing tub so that an air layer forming space is formed on an upper side of the sealing means; The bottom surface of the reservoir is formed with an escape groove so that the end of the air gap forming rib is located, and the remaining surface discharge means is connected to the lowest surface of the escape groove so that residual wash water can be discharged.

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

3 is an internal configuration of a tilted washing machine equipped with a leak prevention apparatus according to the present invention, Figure 4 is a detailed view 'B' of Figure 3, Figure 5 is a front view of the hub according to the invention, 6 is a perspective view of the bottom of the reservoir according to the present invention.

Referring to FIG. 3, the inclined washing machine according to the present invention is positioned to be inclined by a predetermined angle (θ) with respect to the vertical direction in which gravity acts in the case 50 to wash the laundry 60 and the washing tank 65. ), A plurality of hook members 55 for allowing the water storage tank 60 and the washing tank 65 to be inclined in the case 50, and are installed below the water storage tank 60 and the washing tank ( And a drive motor 70 for rotating the drive 65.

The reservoir 60 is formed in a cylindrical shape and suspended in the case 50 in an inclined state by the hanger 55 to store the wash water. In particular, the bottom of the reservoir 60 is shown in FIG. 6. Similarly, a drain passage 61 formed of an arc-shaped groove portion is formed.

The drain passage 61 is formed to be gradually deeper toward the rear starting from the lowest front portion of the inclined bottom surface, the reservoir in a shape that is recessed by a predetermined rotation angle in the circumferential direction such as the rotation direction of the washing tank 65 ( Up to 60).

A drainage port 61a through which the wash water is discharged is formed at the end of the drainage flow path 61, and a drainage hose 63 connected to the outside of the case 50 is installed at the drainage opening 61a and the drainage hose 63. The drain valve 64, which is a drainage operation means for discharging the washing water to the outside, is installed on the bed.

The drive motor 70 is composed of a stator 71 fixed to the lower portion of the reservoir 60, a rotor 73 coupled to the drive shaft 75 around the stator 71, the drive shaft 75 ) Is coupled to the washing tank 65 through the reservoir 60 in the inclined direction as the washing tank 65 is inclined.

The washing tank 65 is provided with a hub 66 serving as a pedestal so as to distribute and transmit the rotational force of the drive shaft 75 on the bottom surface thereof, and supports the drive shaft 75 rotatably on the reservoir 60. The bearing 77 is installed so that.

The sealing member 80 is installed between the reservoir 60 and the drive shaft 75 so that the washing water does not leak out of the reservoir 60 along the drive shaft 75.

Here, the hub 66 has a plurality of ribs (66a, 66b) protruding around the rotating shaft (75) so that the support strength of the washing tank 65 can be reinforced on the bottom as shown in Figure 4 and 5 The ribs are formed in a circular ring shape such that an air layer forming space G is formed on an upper side of the sealing member 66 so that washing water does not flow between the driving shaft 75 and the sealing member 66. Protruding air gap forming ribs 66a are formed.

The air gap forming rib 66a is formed to have a larger protruding length than the other ribs 66b so that the lower end thereof is lower than the upper end of the sealing member 80.

In particular, the bottom surface of the reservoir 60, as shown in Figs. 4 and 6 is formed with an escape groove 62a made of a circular groove so that the end portion of the air gap forming rib 66a is inserted into a predetermined position.

In addition, the bottom surface of the escape groove 62a, that is, the bottom of which the reservoir 60 is inclined, prevents the residual wash water from being discharged in the escape groove 62a from the escape groove 62a. The residual water discharge passage 62b is connected to the lower side.

The residual water discharge passage 62b is formed at an inclination of at least the horizontal plane from the escape groove 62a.

Next, the sealing member 80 is projected so that the plurality of lip portions 81a and 81b are in close contact with the drive shaft 75 in a state of being fixed to the reservoir 60 as shown in FIG. 4. The flexible member 81 which prevents leakage and the reinforcement member 83 which are press-fitted in the said flexible member 81, provide some strength to the flexible member 81, and maintain shape.

That is, the upper rib 81b of the sealing member 80 is positioned at the air layer forming portion G formed under the hub 66 through the air gap forming rib 66a.

On the other hand, a sealing member 90 is provided between the washing tub 65 and the drive shaft 75 so as to form an airtight air layer forming space G inside the air gap forming rib 66a, and the sealing member 90 Is a soft rubber material formed in a ring shape.

That is, when a gap is generated between the washing tub 65 and the drive shaft 75, the air layer forming space G does not exist inside the air gap forming rib 66a, so the sealing member 90 is formed in the air layer forming space ( The upper part of G) is sealed.

Referring to the operation of the leakage preventing device of the inclined washing machine according to the present invention configured as described above are as follows.

When water is supplied in the reservoir 60, the wash water starts to rise from the relatively low front part and the drainage flow path 61, and at this time, an air layer is formed on the upper part of the sealing member 80, which is the bottom of the hub 66. Is formed.

That is, the air inside the air gap forming rib 66a is compressed to some extent by the washing water rising from the bottom, but the sealing member 90 and the sealing member 80 provided on the upper side and the lower side of the drive shaft 75, respectively. Since it is blocked and not discharged to the outside, an air layer forming space G is created.

In this state, when the washing and rinsing operation is performed, the washing water does not flow between the upper lip portion 80b of the sealing member 80 and the driving shaft 77, so that the leakage of the washing water almost occurs even if the sealing member 80 is worn to some extent. You will not.

In addition, since the sealing member 90 is installed between the driving shaft 75 and the hub 66, which are simultaneously rotated differently from the sealing member 80, the sealing member 90 can maintain a sealed state such as an initial installation condition even after using for a long time. .

When the drainage operation is performed after the washing and rinsing operation is completed in the above state, most of the washing water is discharged through the drain port 61a and the drain hose 63 of the reservoir 60, the escape groove 62a. Washing water remaining in the water flows into the drain passage 61 through the residual water discharge passage 62b and is discharged to the outside.

On the other hand, in the embodiment of the present invention described above, but a structure consisting of a long groove discharge water discharge path, but not forming a separate groove-shaped flow path as described above, the bottom surface of the reservoir tank at least from the bottom portion of the escape groove It may be formed as a bottom surface having a slope below the horizontal plane.

Leakage preventing device of the inclined washing machine of the present invention as described above protrudes the air gap forming ribs on the bottom of the washing tank so that the air layer forming space is formed on the sealing member installed between the drive shaft and the reservoir, the air on the bottom surface of the reservoir Since the escape groove is formed so that the gap-forming ribs are positioned, there is an advantage of ensuring a more reliable leakage preventing structure without increasing the overall height of the washing machine in a tilted state of the washing tank.

In addition, the present invention is formed in the bottom surface of the reservoir tank because the residual water discharge passage connected to the relatively low bottom surface from the escape groove portion can be easily discharged the residual water in the escape groove portion and at the same time the structure of the reservoir becomes simple There is also an advantage.

Claims (4)

In an inclined washing machine, the washing tank and the water storage tank are installed to be inclined by a predetermined angle in the case, and a driving motor is installed at the lower portion of the water storage tank so as to rotate the washing tank through a driving shaft. Sealing means is installed between the drive shaft and the water storage tank so that the wash water does not leak, and sealing means is installed between the drive shaft and the washing tank to maintain airtightness; An air gap forming rib protrudes from a bottom of the washing tub so that an air layer forming space is formed on an upper side of the sealing means; Leakage inclined washing machine characterized in that the bottom surface of the reservoir is formed with an escape groove so that the end of the air gap forming ribs are located, and the residual water discharge means is connected to the lowest surface of the escape groove groove to discharge residual wash water Prevention device. The method of claim 1, The washing tub includes a hub having a pedestal function coupled to the drive shaft is installed on the bottom; The air gap forming ribs protrude in a circular ring shape lower than the upper end of the sealing means at the bottom of the hub, the leakage preventing device of the inclined washing machine. The method according to claim 1 or 2, And the residual water discharge means is a residual water discharge passage in a groove shape connected to the bottom of the reservoir from the escape groove to the bottom surface of the water storage tank. The method according to claim 1 or 2, And the residual water discharge means is formed such that the bottom surface of the water storage tank has an inclination of at least a horizontal plane or less from a relatively lower bottom in the escape groove.