KR200187381Y1 - Leak of water check structure of a washing machine - Google Patents

Abstract

The present invention relates to a leak-proof structure of the washing machine, the outer and inner circumference of the outer and inner circumference of the inlet and outlet of the pump case and the first and second drain hoses connected thereto protrude from the outer and inner circumference ribs, the outer circumference And the inner rib is sandwiched between the inlet and outlet when the drain hose is connected, thereby simply fixing the first and second drain hose for draining the wash water, as well as a separate clip is deleted work time and The material cost is reduced, and in particular, the gap between the inlet and the outlet and the first and first drain hoses and the separation of the drain hoses can be prevented in advance, thereby improving the reliability of the product.

Description

Leakage prevention structure of washing machine

The present invention relates to a leak preventing structure of a washing machine, and more particularly, to prevent leakage of washing water and drainage hoses generated from drain hoses connected to the inlet and outlet of the pump case when the laundry is dewatered. A leak prevention structure of a washing machine.

In general, the conventional washing machine to which the drainage pump is applied to forcibly drain the wash water is, as illustrated in FIGS. 1 and 2, an outer case 10 and a top cover 12 coupled to upper and lower portions thereof, respectively. The base 14 and the outer case 10 are provided with a washing tank 16 for storing laundry and washing water and a driving motor 18 and a belt 20 installed under the washing tank 16 to provide driving force. It is composed of a power transmission device 22 for receiving a driving force through a).

One side of the top cover 12 is equipped with a water supply valve 24 for supplying a certain amount of wash water into the washing tank 16, the centrifugal force of the washing water according to the driving force of the drive motor 18 inside the washing tank 16. The dehydration tank 26 is installed so that the laundry can be dewatered, and the washing tank 16 is provided with a drain hole 16a for draining the dewatered laundry water.

The upper part of the washing tank 16 is equipped with a balancer 28 so as to reduce the vibration generated during operation of the washing machine, and the bottom surface of the dehydrating tank 26 is coupled to the upper portion of the power transmission device 22 to wash the water specially. A pulsator 30 for making water flow is rotatably arranged.

The outer case 10 is fixed to the drain pump consisting of the pump case 32 and the drain motor 34 to forcibly drain the contaminated wash water, the inlet and outlet 32a on the outer circumferential surface of the pump case 32 The bosses 32b protrude so as to correspond to each other, and at a position perpendicular to the inlet and outlet portions 32a and 32b, a plurality of bosses (for fixing the pump case 32 to the outer case 10) are provided. 32c) protrudes.

The other end of the first drain hose 36, one end of which is connected to the drain hole 16a, is connected to the inlet part 32a of the pump case 32, and the second drain hose 38 is connected to the outlet part 32b. The first and second drain hoses 36 and 38 are fixed by clips 40 such as band rings.

The leak prevention structure of the conventional washing machine configured as described above, the pump case 32 is fixed to the inner wall surface of the outer case 10 by a fixing member, and then the inlet portion 32a and the drain hole 16a of the washing tank 16 and the outer case. The first and second drain hoses 36 and 38 are fixed to the outlet portion 32b of which the portion is exposed to the outside with the clip 40.

Thereafter, the cover top 12 coupled to the upper portion of the outer case 10 is opened, and the laundry is stored in the dehydration tank 26, and then the water supply valve 24 is operated to maintain a predetermined amount of washing water in the washing tank 16. When the driving motor 18 is driven in the state of supplying water, its driving force is transmitted to the power transmission device 22 via the belt 20 and at the same time, the pulsator 30 is rotated while reducing the rotational force.

In accordance with the forward and reverse rotation of the pulsator 30, the wash water creates a water flow up and down by centrifugal force to perform a washing stroke. When the washing is completed, the dehydration tank 26 is rotated at a high speed by the driving motor 18 and the power transmission device 22 in one direction to drain the laundry while the wash water absorbed in the laundry is drained.

At this time, the contaminated washing water flows into the inlet part 32a of the pump case 32 along the drain hole 16a of the washing tank 16 and the first drain hose 36 connected thereto as the drain motor 34 is operated. Then, the introduced wash water is drained to the outside along the outlet 32c and the second drain hose 38 fixed to the clip 40 at one end thereof.

However, since the first and second drain hoses are fixed with separate clips at the inlet and outlet portions of the pump case for forcibly draining the wash water as described above, this delays the fixing time of the drain hose and the material cost. In particular, when the washing machine is used for a long time, as the clip fixing the first and second drain hoses is loosened, washing water leaks due to a gap between the inlet and the outlet part and the first and second drain hoses.

In addition, when the washing machine is subjected to an impact, the first and second drain hoses are easily separated from the inlet and the outlet, thereby degrading the reliability of the product.

The present invention is to solve the above problems, an object of the present invention is to simply fix the first and second drain hose for draining the wash water by changing the structure of the inlet and outlet of the pump case, as well as The separate clip is deleted to reduce working time and material cost, and in particular, it is possible to prevent gaps and drainage hoses between the inlet and outlet parts and the first and first drain hoses in advance, thereby improving the reliability of the product. It is to provide a leak prevention structure of a washing machine.

1 is a cross-sectional view showing a conventional washing machine,

Figure 2 is an enlarged cross-sectional view of the main portion of the washing machine shown in FIG.

Figure 3 is a perspective view showing a pump case applied to the leak prevention structure of the washing machine according to the present invention,

Figure 4 is a cross-sectional view showing a drain hose connected to the pump case in the leak-proof structure according to the present invention.

Explanation of symbols on the main parts of the drawings

10: outer case 16: washing tank

16a: drain hole 34: drain motor

60 pump case 62,64 inlet and outlet

66,68: First and second drain hoses 70,72: Outer and inner ribs

Features of the present invention for achieving the above object, the drain hole is formed on the bottom surface of the wash water, the first drain hose is connected to the inlet portion of the drain hole and the pump case, the position corresponding to the inlet portion A second drain hose is connected to the protruding outlet to prevent the leakage of the wash water when drained to the outside through the pump case. A leak prevention part is provided in the double drain hose, and the gap between the inlet part, the first drain hose, the outlet part, and the second drain hose when draining the wash water by the leak prevention part is caused by the discharge pressure of the wash water. This is achieved by preventing the drain hoses from escaping.

Leakage preventing portion according to a preferred embodiment of the present invention is achieved by being provided with an outer circumferential rib projecting along the outer circumferential surface of the inlet and outlet portion and an inner circumferential rib projecting to the inner circumferential surface of the first and second drain hose.

The outer circumference and inner circumference rib according to the present invention is achieved by having at least a triple structure to be spaced at regular intervals.

Hereinafter, a preferred embodiment of the leak prevention structure of the washing machine according to the present invention will be described in detail with reference to the accompanying drawings.

In the present invention, the same configuration among the configurations of the washing machine refers to the same reference numeral for convenience of description. 3 and 4 is a view showing the pump case fixing structure according to the present invention, the top cover 12 and the base provided with a water supply valve 24 for supplying the wash water in the upper and lower parts of the outer case 10 14 is coupled to each other, the outer case 10 is provided with a washing tank 16 including a dehydration tank 26 to accommodate the laundry.

A drainage hole 16a is formed in the bottom surface of the washing tank 16 to drain the washing water to the outside after the washing of the laundry is completed, and the driving force is driven by the driving motor 18 and the belt 20 to provide the driving force. The power transmission device 22 is installed, and the pulsator 30 for rotating the washing water into a special water stream is rotatably disposed on the bottom surface of the dehydration tank 26.

The pump case 60 is fixed to the lower part of the inner wall surface of the outer case 10 by a plurality of fixing screws, and the inlet and outlet portions 62 and 64 protrude from the pump case 60 so as to correspond to each other. First and second drain hoses 66 and 68 connected to the drain holes 16a are connected to the outlet parts 62 and 64, respectively.

The inlet and outlet parts 62 and 64 and the first and second drain hoses 66 and 68 connected to the inlet and outlet parts 62 and 64 are provided with a leak preventing part to prevent leakage of the wash water and separation of the drain hose. The portion includes an outer circumferential rib 70 protruding along the outer circumferential surfaces of the inlet and outlet portions 62 and 64 and an inner circumferential rib 72 protruding to the inner circumferential surfaces of the first and second drain hoses 66 and 68.

The outer circumference and inner circumference ribs 70 and 72 have at least triple structures so as to be spaced at regular intervals, and the first and second drain hoses 66 and 68 with respect to the inlet portion 62 and the outlet portion 64. ) When connecting, the outer circumferential rib 70 and the inner circumferential rib 72 are sandwiched between each other.

It will be described in detail the action on the leak prevention structure of the washing machine according to the present invention configured as described above.

After supplying the laundry and the wash water in the dehydration tank and the washing tank and driving the driving motor installed in the lower portion of the washing tank, its driving force is transmitted to the power transmission device 22 by the belt 20 to rotate the pulsator 30, According to the rotation of the pulsator 30, the wash water creates a water flow up and down by centrifugal force to perform a washing stroke.

When the drain motor 34 is operated to drain the contaminated washing water during the dehydration stroke after the washing stroke is completed, the washing water is pumped along the drain hole 16a and the first drain hose 66. At the same time as the inlet 62 of the inlet is discharged to the outside through the second drain hose 68 connected to the outlet 64.

At this time, the inner circumferential rib 70 protruding from the inner circumferential surfaces of the first and second drain hoses 66 and 68 has an outer circumferential rib protruding to have a triple structure on the outer circumferential surfaces of the inlet portion 62 and the outlet portion 64. 72) It is possible to prevent the leakage of the wash water and the detachment of the drain hose even when the pressure is applied between the wash water and the impact on the washing machine.

According to the leak prevention structure of the washing machine according to the present invention as described above, by changing the structure of the inlet and outlet of the pump case, as well as simply fixing the first and second drain hose for draining the wash water separate The clip is deleted to reduce the work time and material costs, and in particular, it is possible to prevent the separation of the gap and the drain hose generated between the inlet and outlet and the first and first drain hose in advance to improve the reliability of the product.

The present invention is not limited to the above-described specific preferred embodiment, and any person having ordinary skill in the art to which the present invention pertains may make various modifications without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

Claims (4)

A drainage hole is formed in the bottom surface of the wash water, and a first drain hose is connected to the inlet of the drain hole and the pump case, and a second drain hose is connected to the outlet part protruding at a position corresponding to the inlet. In the leakage preventing structure of the washing machine to prevent the leakage of the washing water when drained to the outside through the case, Leakage prevention portion is provided in the inlet and outlet and the first and second drain hose connected to it, when the wash water is drained by the leak prevention portion, the inlet and the first drain hose and the outlet and the second drain Leaving structure of the washing machine, characterized in that the separation of the drain hose by the gap generated between the hose and the discharge pressure of the wash water is prevented. The water leakage preventing structure of a washing machine according to claim 1, wherein the leakage preventing part comprises an outer circumferential rib protruding along the outer circumferential surfaces of the inlet and the outlet part and an inner circumferential rib protruding to the inner circumferential surfaces of the first and second drain hoses. The water leakage preventing structure of a washing machine according to claim 2, wherein the outer circumference and the inner circumference rib are at least tripled to be spaced at a predetermined interval. The water leakage preventing structure of a washing machine according to claim 2, wherein the outer circumference and the inner circumference rib are fitted between each of the outer circumference rib and the inner circumference rib when the first and second drain hoses are connected to the inlet and the outlet. .