KR100223417B1 - The filter apparatus of a washing machine - Google Patents

Abstract

The present invention discloses a foreign material filtering device of a washing machine. Disclosed is a foreign material filtering device of a washing machine installed in the lower side of a washing and dewatering tank and collecting foreign matters contained in the washing water pumped by a rotating force of a rotating stirring blade along with a stirrer, wherein the inside of the washing and dehydrating tank is provided. An out case provided at the front side and having an opening at the front thereof; A pair of first and second filters detachably coupled to the opening and having a net body on the front and rear surfaces thereof, the inlet being formed at the lower side thereof; A check valve provided inside the second filter and sealing the inlet; It is provided on the rear lower side of the out case and provided with an injection unit for injecting the washing water to the inlet, thereby improving the pumping force of the washing water, thereby sufficiently removing the foreign matter contained in the washing water.

Description

Foreign body filtering device of washing machine

The present invention relates to a debris filtering device of a washing machine, and more particularly, to a debris filtering device of a washing machine which is pumped in a more accelerated state when pumping the wash water stored in the lower side of the debris filtering device toward the upper side thereof.

In a typical household washing machine, as illustrated in FIG. 1, a water tank 200 is suspended by a suspension device 300 inside the main body 100 that forms an exterior thereof, and inside the water tank 200. Washing and dehydration tank 400 provided with a balance 410 is provided on the upper side.

A stirrer 500 such as a pulsator or an agitator is installed below the washing and dehydration tank 400. Under the stirrer 500, a stirring blade 510 functioning as aberration is integrally disposed.

On the other hand, the washing and dehydration tank 400 and the stirrer 500 is installed so as to rotate in one direction, forward and reverse rotation by the drive device 600 and the shaft device 700 mounted on the lower outside of the water tank 200. have.

In addition, the inside of the washing and dehydration tank 400 is provided with a foreign matter filtering device 800 for filtering foreign substances contained in the wash water during washing (or rinsing) administration.

The foreign material filtering device 800, as shown in Figures 2 to 3, the out case 810 to form a flow path between the inner surface of the washing and dehydration tank 400, and detachable to the inside of the out case 810. It is provided with a pocket filter 820 that is possibly excreted.

The out case 810 is formed with a plurality of outflow holes 811 in the front, the rear of the guide portion 812 and the washing water guide 813 is installed.

The pocket filter 820 includes a front grille plate 821 and a front grille plate 821 provided with a front net 822 that filters the foreign substances while simultaneously draining the washing water to the outlet hole 811 and the front grille plate 821. A rear grill plate 823 coupled to the rear and provided with a rear net 824 and a check valve 825 made of a rubber material sealing the lower sides of the front and rear grill plates 821 and 823.

Referring to the operation of the general washing machine configured as described above is as follows.

That is, after opening the doa 110 provided in the upper side of the main body 100 of the washing machine to put the laundry, the washing water is supplied to the water tank 200 through the water supply device 120. When the water supply is completed and the stirrer 500 is driven forward and reversely by the driving of the driving device 600 and the shaft device 700, the stirrer 500 forms water flow inside the washing and dehydrating tank 400. The stirring blade 510 functions as an aberration and pumps the washing water stored in the lower side to the upper side of the washing water guide 813.

As described above, the pumped wash water is introduced to the inside of the front and rear grill plates 821 and 823 while flipping the check valve 825 upward. Passed through (822) 824, and removes the foreign matter contained in the wash water. (See Figure 3)

However, the following problem occurs in the foreign matter filtering device of such a general washing machine.

That is, the inner diameter of the flow path formed between the outer case 810 and the inner surface of the washing and dewatering tank 400 for forming the foreign matter trapping device according to the structure is formed almost constant, during the washing and rinsing stroke ( The washing water is pumped by the rotational force generated while the stirring blade 510 which functions as the aberration rotates while the 500 rotates, and the pumped washing water is discharged from the front and rear grill plates 821 and 823. After flowing into the inside of the, the introduced washing water is discharged through the net 822, 824 provided in the front, rear, there is a problem insufficient to collect the foreign matter.

Therefore, the pumping and circulating the wash water forcibly and the foreign matter contained in the wash water can not be removed sufficiently, and accordingly, there is a problem that can not maintain a clean washing efficiency.

Therefore, the technical problem to be achieved by the present invention, that is, the object of the present invention is to solve the problems of the conventional foreign matter trapping device of the washing machine, the upper side of the wash water stored in the lower side of the foreign matter filtering device By spraying in a state accelerated toward, to improve the pumping power of the wash water, and thus to provide a foreign matter filtering device of the washing machine to sufficiently remove the foreign matter contained in the wash water to maintain a clean washing efficiency.

1 is a cross-sectional view showing the internal configuration of a conventional fully automatic washing machine equipped with a conventional foreign matter filtering device

Figure 2 is an exploded perspective view of a conventional foreign matter trapping device

Figure 3 is an enlarged cross-sectional view showing a combined state of the conventional foreign matter filtering device

Figure 4 is an exploded perspective view of the foreign matter filtering device according to the present invention

Figure 5 is an enlarged cross-sectional view showing a combined state of the foreign matter filtering device according to the present invention;

Explanation of symbols on the main parts of the drawings

400; Washing and dehydrating tank 500; agitator

510; Stirring blade 900; Foreign material filtering device

910; Out case 911; Opening

920, 930; First and second filters 921 and 931; Manche

940; Inlet 950; Check valve

960; Injection portion 961; Jet

962; Euro reduction

In order to achieve the above object, the present invention, in the foreign material filtering device of the washing machine which is installed in the lower side of the washing and dehydration tank and collects the foreign matter contained in the wash water pumped by the rotational force of the stirring blade rotating with the stirrer, An outer case provided inside the washing and dehydrating tank and having an opening at the front thereof; A pair of first and second filters detachably coupled to the opening and having a net body on the front and rear surfaces thereof, the inlet being formed at the bottom thereof; A check valve provided inside the second filter and sealing the inlet; It is provided on the rear lower side of the out case and provides a foreign matter filtering device of the washing machine, characterized in that the injection unit for spraying the wash water to the inlet.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention for achieving this object will be described in detail.

Figure 4 is an exploded perspective view showing the main portion of the foreign substance filtering apparatus according to the present invention, Figure 5 is a cross-sectional view showing the main portion of the foreign substance filtering apparatus according to the present invention.

In other words, since the washing machine to which the present invention is applied is the same as the general household washing machine shown in FIG. 1, a separate configuration and an operation description thereof are omitted, and only the foreign material filtering device which is a feature according to the present invention is referred to. The description is limited to 900.

As shown in the drawing, the foreign material filtering device 900 of the washing machine according to the present invention is installed inside the washing and dehydration tank 400.

In addition, a stirrer 500 having a stirring blade 510 is provided below the washing and dehydration tank 400.

In addition, an outer case 910 having an opening portion 911 is provided at the front side of the washing and dehydrating tank 400, and the openings 911 are provided with meshes 921 and 931 with respect to the front and rear surfaces. And a pair of first and second filters 920 and 930 having an inlet 940 formed on the lower side thereof.

On the other hand, a check valve 950 for sealing the inlet 940 is disposed below the inner side of the second filter 930, and washing water is disposed on the inlet 940 in the rear lower side of the out case 910. An injection unit 960 for injecting is provided.

The injection unit 960 may include an injection hole 961 penetrating through the out case 910 forming a lower surface of the opening 911, and a flow path reduction part extending downward from the rear of the injection hole 961. 962 is provided.

Preferably, the injection hole 961 is preferably provided in a rectangular shape.

The operation and effects on the foreign matter filtering device of the washing machine according to the present invention configured as described above will be described.

That is, during the washing and rinsing stroke, as the stirrer 500 rotates by a power transmission device (not shown), the stirring blade 510 provided at the lower side functions as aberration, and the washing and dehydrating tank 400 Washing water (or rinsing water) stored on the lower side is forcibly pumped as in the prior art.

In addition, the pumped wash water is introduced into the filter through the injection hole (961) and the inlet 940 provided on the lower side of the first, second filter (920, 930), and the introduced wash water The first and second filters 920 and 930 are discharged to the outside through the meshes 921 and 931 provided on the front and rear, and collects foreign substances contained in the wash water much the same as the conventional.

However, the feature of the present invention, the washing water to the inside of the first, second filter 921, 931 through the injection hole 961 and the inlet 940 by the rotational force of the stirring blade 510. When introduced, the incoming wash water is introduced at a more accelerated flow rate.

In more detail, according to the structure in which the flow path reduction portion 962 is provided on the lower rear side of the injection hole 951, the pumping is performed by the rotational force of the stirring blade 510 that rotates together with the rotation of the stirrer 500. The wash water being circulated) is passed in a further accelerated state when passing through the narrow passage 962 of the inner diameter, and thus, the washed water passed in the accelerated state passes through the injection hole 961 and the inlet ( 940 is accelerated inward.

Of course, a separate description is omitted, the check valve 950 is opened when the wash water passes, when the wash water does not pass is closed by the water pressure of the washing water filled in the upper side to prevent the reverse flow of the wash water Will do the same as before.

According to the present invention having the above configuration, since the pumping power of the wash water is improved, and thus the wash water is easily circulated, the foreign matter contained in the wash water is sufficiently collected by each filter installed in the foreign matter filtering device.

Therefore, as in the prior art, when the washing and rinsing stroke, the stirrer rotates and the pumping force due to the rotation of the stirring blade which functions as an aberration is weak, forcibly pumping and circulating the washing water, and removing foreign substances contained in the washing water. The problem of not being able to remove it sufficiently and keeping clean washing efficiency accordingly is solved.

As described in detail above, the present invention is to pass the washing water stored in the lower side of the foreign material filtering device in an accelerated state toward the upper side, to sufficiently remove the foreign substances contained in the washing water to maintain a clean washing efficiency, etc. There is a characteristic.

Claims (3)

In the foreign matter trapping device of the washing machine which is installed in the lower side of the washing and dehydration tank and collects the foreign matter contained in the wash water pumped by the rotational force of the rotating stirring blade and the stirrer, An outer case provided inside the washing / dehydrating tank and having an opening in a front surface thereof; A pair of first and second filters detachably coupled to the opening and having a net body on the front and rear surfaces thereof, the inlet being formed at the lower side thereof; A check valve provided inside the second filter and sealing the inlet; It is provided on the rear lower side of the out case and the foreign material filtering device of the washing machine, characterized in that the injection unit for spraying the washing water to the inlet. The foreign material filtering device of claim 1, wherein the injection unit comprises injection holes penetrating through the outer case forming the lower surface of the opening, and a flow path reduction part extending downward from the rear of the injection hole. . The foreign material filtering device of a washing machine according to claim 2, wherein the injection hole is provided in a rectangular shape.

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