KR20110013059A - A laundry treatment machine - Google Patents

Abstract

PURPOSE: A laundry treatment machine is provided to improve the filtering efficiency of washing water by flowing swirling water current to the filter. CONSTITUTION: A laundry treatment machine comprises a washing tub, a filter, and a check valve(70). A pulsator is arranged in the lower part of the washing tub. The filter is arranged in the inner wall of the washing tub. A water inlet hole(80) is formed in the side of the filter in order to inflow washing water rotating along the circumference direction of the washing tub. A check valve installed in the inlet hole prevents backward flowing of the washing water to the outside of the filter.

Description

Laundry treatment machine {A laundry treatment machine}

The present invention relates to a laundry treatment apparatus, and more particularly, to a laundry treatment apparatus capable of improving the filtering efficiency by improving the structure of a filter and a check valve that filters foreign substances during washing.

Generally, a laundry treatment machine uses water, detergents, and mechanical action to remove dirt from clothes, bedding, etc. (hereinafter, referred to as 'fo'), and dry hot air and mechanical action heated by a heater. By applying physical and chemical effects to the fabric, such as a dryer for drying wet fabrics, a dry washing machine that combines washing and drying functions, and a refresher that sprays heated steam to the laundry to prevent allergy from the fabrics. Collectively, the various devices for processing.

In addition, the washing machine has a top rod type washing machine in which a cloth entry hole through which a cloth is introduced and exits is formed on the upper surface of the cabinet, and washing is performed by a rotational flow generated when the washing tank is rotated, and a cloth entry hole is formed in the front of the cabinet and the drum is rotated. It can be classified as a drum washing machine in which washing is performed by a drop of cloth.

The conventional top rod type washing machine has a cabinet having an exterior and an open top surface, a base installed at the bottom of the cabinet, an outer tub installed inside the cabinet and storing water, and disposed inside the tub and A driving device including a washing tank to be washed, a motor disposed under the washing tank to rotate the washing tank, a water supply device for supplying water into the outer tank, and a drainage device for draining the water in the outer tank. .

A pulsator is installed on the bottom of the washing tank to receive a driving force of the motor and rotates, and a lint filter is installed on the inner wall of the washing tank to filter foreign matter such as lint from laundry during the washing stroke. .

Meanwhile, an example of a conventional top rod type washing machine and a lint filter applied thereto are disclosed in Korean Patent Application No. 97-39040.

An inlet hole is formed in the lower surface of the conventional lint filter disclosed as described above so that the water flow generated by the pulsator is introduced, and a discharge hole for discharging the washing water filtered out of the foreign substance to the washing tank is passed through the lint filter. . The inlet hole side is provided with a check valve for preventing the foreign matter collected in the lint filter is discharged back to the washing tank side through the inlet hole when the drainage stroke or the motor is stopped.

In the conventional washing machine as described above, the water flow generated by the pulsator during washing administration flows through the lower portion of the lint filter, rises, passes through the lint filter, and is discharged to the washing tank side. At this time, foreign matter such as lint or the like contained in the wash water is collected in the lint filter.

However, in the conventional washing machine, since only the water flow rising on the wall of the washing tank flows through the lower portion of the lint filter, there is a limit in the washing water flowing into the lint filter and thus the filtering efficiency is lowered.

An object of the present invention is to provide a laundry treatment apparatus that can improve the filtering efficiency by improving the structure of the filter provided on the inner wall of the washing tank.

Laundry processing apparatus according to the present invention is a washing tank with a pulsator is disposed at the bottom, disposed on the inner wall of the washing tank, the filter formed with an inlet on the side so that the washing water rotates in the circumferential direction of the washing tank, and the inlet And a check valve to prevent the washing water introduced into the filter from flowing back out of the filter.

In the present invention, the filter is circular, and the inlet portion may be opened in the vertical direction along the left and right sides of the filter.

In the present invention, the filter may include a rear body having the inlet portion and a front body having an outlet portion coupled to the front surface of the rear body and having an outlet portion for discharging the washing water filtered with foreign matter to the washing tank side.

In addition, in the present invention, the laundry treatment machine may further include a filter case for fastening and fixing the filter to the inner wall of the washing tank.

The filter case may be formed with an opening hole so that the wash water flows into the left and right sides.

The filter may be hooked to the filter case.

In addition, in the present invention, the inlet portion may include an inlet hole through which the washing water flows in the up and down directions at the side of the filter.

In the present invention, the check valve is formed in a plate shape long in the vertical direction to open and close the inlet hole, the upper and lower hinge protrusions may be formed to be hinged to the inlet portion.

In the present invention, the check valve may be installed to be opened and closed laterally at the inlet.

In the present invention, the check valve may be made of an elastic material to open to the inside of the filter by the water pressure of the washing water flowing into the inlet.

In the present invention, the filter may be fastened and fixed against the inner wall surface of the washing tank.

Laundry processing apparatus according to the present invention includes a filter installed on the inner wall of the washing tank, and a check valve mounted to the filter, the filter is formed with an inlet portion on the side so that the washing water rotates in the circumferential direction of the washing tank, The check valve is configured to be opened and closed laterally by the water pressure of the incoming washing water. Therefore, since the rotational water flow generated during operation of the washing machine can be introduced into the filter, a large amount of washing water can pass through the filter, thereby improving the filtering efficiency of the washing water.

Hereinafter, a top load type washing machine (hereinafter referred to as a "washing machine") as an embodiment of a laundry treatment machine according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a top load type washing machine according to the present invention, Figure 2 is a longitudinal sectional view of the washing machine shown in FIG.

1 and 2, a washing machine according to the present invention includes a case 1 forming an appearance and a leg assembly 10 coupled to a lower portion of the case 1.

The case 1 has an upper surface and a lower surface formed to be open, a cabinet 2 forming a side surface of a washing machine, a top cover 3 installed to cover an open upper surface of the cabinet 2, and the cabinet ( It includes a base (5) installed on the open lower surface of 2).

In the cabinet 2, an outer tub 4 in which water is accommodated, a washing tub 6 disposed inside the outer tub 4 and containing laundry, a motor 8 for driving the washing tub 6, and the like. And a water supply assembly for supplying water to the inside of the outer tub 4, and a drainage assembly 20 for draining the water in the outer tub 4 after washing or dehydration is completed.

In addition, the case 1 further includes a detergent supply unit 30 installed in the top cover 3 to temporarily store detergent. The detergent supply unit 30 is connected to the water supply assembly and is formed to supply a detergent into the washing tank 6 together with the water supplied.

The top cover 3 is provided with a cloth entrance hole 3a to put or take out the cloth. The top cover 3 is provided with a door 40 for opening and closing the gun access hole (3a). The door 40 may be made of at least a portion of glass (glass) so that the interior can be seen. That is, the door 40 includes a frame portion 40a and a glass portion 40b fitted to the frame portion 40a.

In addition, one side of the top cover 3 is equipped with a display panel 7 for inputting the operation of the washing machine or displaying the operating state of the washing machine.

The outer tub 4 is arranged to be suspended by a plurality of suspensions 15 on the inner top of the cabinet 2. One end of the suspension 15 may be coupled to an inner upper portion of the cabinet 2, and the other end thereof may be coupled to a lower portion of the outer tub 4.

A pulsator 9 is installed at the bottom of the washing tub 6 to form a rotational flow of water contained in the outer tub 4. The pulsator 9 is integrally formed with the washing tank 6, so that the washing tank 6 and the pulsator 9 may rotate together when the motor 8 rotates, and the pulsator 9 may be rotated together. ) Is formed separately from the washing tank 6, it is also possible to rotate separately during the rotation of the motor (8).

A balancer 12 is installed on the upper side of the washing tank 6 to prevent the washing tank 6 from losing balance due to the deflection of cloth. The balancer 12 may be a liquid balancer filled with a liquid such as brine.

On the upper side of the outer tub 4, a tub cover 14 for preventing separation of the cloth and scattering of water is provided.

The tub cover 14 is installed to cover the upper portion of the space between the outer tub 4 and the washing tub 6.

At the time of rotation of the washing tub 6, the washing water passing through the side wall of the washing tub 6 by centrifugal force rises toward the tub cover 14 along the space between the outer tub 4 and the washing tub 6; After hitting the tub cover 14, it is introduced into the washing tub 6.

The water supply assembly includes an external hose 11 for guiding water supplied from an external faucet, etc. to the washing machine, a water supply valve 12 connected to the external hose 11 to regulate water supply, and the water supply valve ( 12) and a water supply hose 13 connecting the detergent supply unit 30. The water supply valve 12 and the water supply hose 13 form a water supply passage for supplying water.

The detergent supply unit 30 is disposed on the water supply passage. The detergent supply unit 30 includes a detergent box housing 31 installed in communication with the water supply hose 13, a detergent box 32 detachably attached to the detergent box housing 31, and the detergent box housing ( It is fixed to 31 and disposed on the upper surface of the detergent box 32 includes a detergent box cover for spraying water.

The detergent box 32 is coupled to the detergent box housing 31 so that a user can take it out of the detergent box housing 31 to inject detergent. The detergent box 32 may be coupled to the detergent box housing 31 so as to slide forward and backward. At least a part of the rear surface of the detergent box 32 may be opened, and detergent may be introduced into the detergent box housing 31 through the rear surface of the detergent box 32 when water is supplied.

The drainage assembly 20 includes a first drain hose 21 connected to a drain hole 26 formed on a lower surface of the outer tub 4, a drain pump housing 24 including a drain pump for pumping water, and the drainage. And a second drain hose 25 connected to the pump housing 24 to drain the water pumped by the drain pump to the outside of the cabinet 2. A drain motor for driving the drain pump is embedded in the drain pump housing 24.

The drainage assembly 20 may be disposed between the outer tub 4 and the base 5.

3 is a plan view of a filter according to an embodiment of the present invention, FIG. 4 is a rear perspective view of the filter shown in FIG. 3, and FIG. 5 is a rear perspective view of a portion of the rear body shown in FIG. 4. 6 is a cross-sectional view illustrating a coupling state of the check valve shown in FIG. 5, FIG. 7 is a cross-sectional view taken along line AA in FIG. 4, and a check valve is open. FIG. It is a cross section.

On the other hand, referring to Figure 2, the washing tank 6 is equipped with a filter 60 for filtering foreign matter, such as seams or lint from the cloth during washing.

The filter 60 is mounted below the inner wall of the washing tank 6. Here, one filter 60 is described as being installed, but a plurality of filters 60 may be disposed at predetermined intervals.

The filter 60 may be directly coupled to the inner wall surface of the washing tub 6, or may be inserted into a separate space such as a flow path formed to accommodate the filter 60 in the washing tub 6. It is possible. Hereinafter, the filter 60 will be described as being fastened and fixed by a separate fastening member after being seated in a groove formed on the inner wall surface of the washing tub 6.

The filter 60 has a side inlet portion 80 formed at a side thereof so that the washing water rotating in the circumferential direction of the washing tub 6 flows in the lateral direction when the washing tub 6 is rotated. The side inlet portion 80 includes a left side inlet portion formed on the left side of the filter 60 and a right side inlet portion formed on the right side of the filter 60.

The filter 60 includes a rear body 66 having the side inlet portion 80 formed therein, a front body 64 coupled to a front surface of the rear body 66, the rear body 66 and the front body. The mesh 64 includes a mesh MESH (not shown).

The mesh (not shown) has been described as being provided in the rear body 66 and the front body 64, but is not limited thereto, and the mesh (not shown) is formed of a separate panel, among the front body 64 and the rear body 66. Of course, it is also possible to be fastened to at least one.

In addition, the filter 60 may further include a filter case 62 having a rectangular shape.

A plurality of opening holes 62a are formed at left and right sides of the filter case 62 to allow washing water to flow therein.

The front body 64 may have a circular cross-sectional shape, and the rear body 66 may have a circular shape, but the upper body 64 will be described as having a flat chamfered shape.

The front body 64 is formed in a disc shape, the outlet portion for discharging the washing water filtered by the foreign matter in the washing tank 6 side is formed. The outlet portion is a plurality of discharge holes 64a formed on the front surface of the front body 64.

The front body 64 is detachably coupled to the filter case 62. That is, at least one of the upper and lower ends of the front body 64 is provided with snap detachable portions 64b and 64c to be detachably attached to the filter case 62.

The snap detachable portions 64b and 64c have elasticity in the vertical direction and have a hook shape. The snap detachable portions 64b and 64c are hooked to a detachable groove formed in the filter case 62.

4 and 5, the rear body 66 is disposed between the front and rear panels 66a and 66b and the front and rear panels 66a and 66b spaced apart in the front and rear directions. It includes upper and lower panels 66d and 66e constituting the lower surface.

A plurality of holes 66c may be formed in the front and rear panels 66a and 66b, respectively.

The side inlets 80 are left and right sides of the front and rear panels 66a and 66b of the rear body 66, and left and right sides of the upper and lower panels 66d and 66e. And an inflow hole 67 formed between the left and right sides of the front and rear panels 66a and 66b.

The left and right portions of the front and rear panels 66a and 66b have an arc shape, and the inflow hole 67 has a long rectangular shape in the vertical direction.

The upper and lower panels 66d and 66e serve to support upper and lower ends of the check valve 70 to be described later.

Meanwhile, referring to FIGS. 5 to 8, a check valve 70 is installed at the side inlet part 80 to prevent the washing water flowing into the filter 60 from flowing back out of the filter 60. do.

The check valve 70 is installed to be opened and closed in the lateral direction from the side inlet portion 80, that is, the left and right directions with respect to the filter 60. In addition, the check valve 70 is installed to open only in the inward direction of the filter 60.

The check valve 70 is formed in a rectangular plate shape long in the vertical direction to correspond to the inlet hole (67).

The check valve 70 includes a left check valve 71 installed at the left side inlet and a right check valve 72 installed at the right side inlet. The left check valve 71 and the right check valve 72 may be open at the same time, one of the two may be selectively opened depending on the water flow direction of the wash water.

The check valve 70 is made of an elastic material to open to the inside of the filter 60 by the water pressure of the wash water flowing through the inlet hole (67). That is, the check valve 70 may be made of a material such as rubber or silicon.

Upper and lower ends of the check valve 70 are rotatably coupled to the side inlet portion 80.

Hinge protrusions 70a hinged to the side inlet portion 80 are formed to protrude from the upper and lower surfaces of the check valve 70. The hinge protrusion 70a may be made of an elastic material such as rubber.

Upper and lower panels 66d and 66e of the rear body 66 are provided with fitting holes 66f through which the hinge protrusions are fitted.

The end of the hinge protrusion (70a) is pinched when passing through the fitting hole (66f), it is restored and stretched after being fitted into the fitting hole (66f), it can be locked to the fitting hole (66f). .

Stoppers 68 are formed on upper and lower panels 66d and 66e of the rear body 66 to restrict the check valve 70 from opening outward of the filter 60.

Referring to the operation according to the embodiment of the present invention configured as described above are as follows.

When at least one of the washing tank 6 and the pulsator 9 is rotated due to the driving of the motor 8 during operation of the washing machine, the washing tank 6 may be A rotational flow flowing in the circumferential direction is formed.

As shown in FIG. 7, the hydraulic pressure of the rotary water flow pushes the check valve 70 to the inside of the filter 60, and the check valve 70 is opened to the inside of the filter 60.

Thus, the rotary water flow is introduced into the filter 60 through the side inlet portion 80 of the filter 60.

On the other hand, at the time of stopping the motor 8, terminating the washing stroke, or draining stroke, the water pressure of the washing water flowing into the filter 60 is weakened or lost.

As shown in FIG. 8, the check valve 70 is returned to its original position, and the washing water or foreign matter remaining in the filter 60 is prevented from flowing back through the side inlet portion 80.

In addition, since the filter 60 has a circular structure that does not protrude from the filter case 62, friction with the fabric can be minimized to prevent damage to the fabric.

In addition, when the filter 60 is cleaned, the filter 60 is easy to be attached and detached by using the snap-on / detachable portions 64b and 64c.

Those skilled in the art will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is indicated by the scope of the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and the equivalent concept are included in the scope of the present invention. Should be interpreted.

Laundry processing apparatus according to the present invention includes a filter installed on the inner wall of the washing tank, and a check valve mounted to the filter, the filter is formed with an inlet portion on the side so that the washing water rotates in the circumferential direction of the washing tank, The check valve is configured to be opened and closed laterally by the water pressure of the incoming washing water. Therefore, since the rotational water flow generated during operation of the washing machine can be introduced into the filter, a large amount of washing water can pass through the filter, thereby improving the filtering efficiency of the washing water.

1 is a perspective view of a top load type washing machine according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the washing machine shown in FIG. 1.

3 is a plan view of a filter according to an embodiment of the present invention.

4 is a rear perspective view of the filter shown in FIG. 3.

FIG. 5 is a rear perspective view of a portion of the rear body shown in FIG. 4;

FIG. 6 is a cross-sectional view illustrating a coupled state of the check valve illustrated in FIG. 5.

FIG. 7 is a sectional view taken along the line A-A in FIG. 4, and is a view of the check valve opened. FIG.

8 is a cross-sectional view of the check valve closed state.

BRIEF DESCRIPTION OF THE DRAWINGS Fig.

6: washing tank 60: filter

62: filter case 64: front body

66: rear body 70: check valve

80: side inlet

Claims (11)

A washing tank in which a pulsator is disposed below; A filter disposed on an inner wall of the washing tub and having an inlet portion formed at a side thereof to allow washing water to rotate in a circumferential direction of the washing tub; And a check valve installed at the inlet to prevent the washing water flowing into the filter from flowing back out of the filter. The method according to claim 1, The filter is circular, The inlet part is a laundry treatment device that is opened in the vertical direction along the left, right sides of the filter. The method according to claim 1, The filter includes a rear body formed with the inlet portion and a laundry treatment device including a front body coupled to the front surface of the rear body and the outlet portion for discharging the washing water filtered out foreign matter to the side of the washing tank. The method according to claim 1, The laundry treatment machine, Washing machine further comprises a filter case for fastening and fixing the filter on the inner wall of the washing tank. The method according to claim 4, The filter case is a laundry treatment device formed with an opening hole so that the wash water flows into the left and right sides. The method according to claim 4, The filter is a laundry treatment device hooked to the filter case. The method according to claim 1, The inlet part is a laundry treatment apparatus including an inlet hole in which the washing water is introduced into the opening in the vertical direction in the side of the filter. The method of claim 7, The check valve is made of a plate shape long in the vertical direction to open and close the inlet hole, the upper and lower, the laundry processing device is formed with a hinge protrusion protrudes to hinge the inlet. The method according to claim 1, The check valve is a laundry treatment device is installed to be opened and closed laterally at the inlet. The method according to claim 1, The check valve is a laundry treatment device made of an elastic material to open to the inside of the filter by the water pressure of the washing water flowing into the inlet. The method according to claim 1, The filter is laundry treatment machine is fastened and fixed to the inner wall surface of the washing tank.

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