KR19990011131A - Foreign body filtering device of washing machine - Google Patents

Abstract

The present invention relates to a foreign matter trapping device of a washing machine, comprising a guide plate for inducing fixing of the check valve on one side of the check valve so as to easily fix the check valve to prevent foreign substances from being discharged to one side of the pocket filter. As the guide plate is formed at one end of the check valve, the insertion time of the check valve can be easily fixed through the slit hole of the small rear grill plate, thereby reducing the assembly time.

Description

Foreign body filtering device of washing machine

The present invention relates to a foreign matter trapping device of a washing machine to improve the structure of the foreign matter trapping device of the washing machine to increase the foreign matter collecting ability and at the same time to improve the ability to collect fine foreign matter.

A conventional automatic washing machine has a main body 10 forming an external appearance as shown in FIG. 1, and an outer tub 20 for storing wash water is disposed inside the main body 10, and the outer tub 20 is disposed. A motor 30 driven by receiving power is disposed on an outer bottom surface of the outer surface of the outer tub 20, and a pulsator which receives a driving force through the belt 41 from the motor 30 via the belt 41. Or a power transmission device 40 for driving the dehydration tank is mounted, the dehydration tank 50 is rotatable in the outer tank 20 to dehydrate the laundry by centrifugal force according to the rotation of the power transmission device 40. The balancer 60 is installed at the upper side of the dehydration tank 50 to maintain the horizontality of the dehydration tank 50 so that the laundry is rotated even when the laundry is dehydrated to one side. In the dehydration tank 50 The pulsator 70 is rotatably disposed to form a flow of water in the dissolved wash water, and is stored in the outer tank 20 by a water level sensor not shown in the upper part of the main body 10. Water supply means 80 for detecting the water level of the wash water and supplying the wash water according to the laundry into the outer tub 20 is disposed, and the lower one side of the outer tub 20 is contaminated laundry generated during washing and rinsing. Drainage pole means 90 for discharging water is disposed.

Inside the dehydration tank 50 is provided with a guide tube 100 for guiding the water flow upward as the pulsator 70 rotates, and a balancer 60 coupled with the end of the guide tube 100. The discharge port 61 is formed at the inner side of the discharge pipe 61 to discharge the supernatant stream guided through the guide tube 100 to the inner center of the dehydration tank 50, and at the lower side of the discharge port 61. Filter bag 110 for filtering foreign matters flowing by the flow of upflow is disposed.

The automatic washing machine configured as described above puts laundry and detergent in the dehydration tank 50, selects the operating conditions by an operation unit (not shown), and operates the washing machine. The washing water is supplied into the outer tank 20 through the water supply means 80. When the washing water supplied into the outer tub 20 reaches an amount necessary to wash the laundry introduced into the dehydration tank 50, the motor 30 starts to rotate, and the rotational force of the motor 30 is the belt 41. It is transmitted to the power transmission device 40 through, the power transmission device 40 receives the rotational force of the motor 30 to decelerate, and then rotates the pulsator 70 to be stored in the dehydration tank 50 to flow water It forms and washes.

That is, as the pulsator 70 rotates, the washing water introduced into the dehydration tank 50 rises at the edge of the pulsator 70 and forms a water and sewage stream descending to the center of the pulsator 70 to perform washing. Do it. At this time, the water flow of the bottom portion of the dehydration tank 50 is pushed toward the inner circumferential surface of the dehydration tank 50 by the rotational force of the pulsator 70 and ascending along the guide tube 100, the balancer 60 of the The washing effect is increased by pouring down into the inner central portion of the dehydration tank 50 through the discharge port 61 and the filter bag 110 formed at one side, and the laundry is filtered by the filter bag 110.

When washing is completed in this way, the contaminated washing water stored in the outer tank 20 and the dehydration tank 50 is turned on (opened) while the solenoid valve (not shown) disposed in the lower part of the outer tank 20 is drained. Through 90).

Thereafter, when the drainage of the washing water is completed, the solenoid valve (not shown) is turned off and the washing water for rinsing is supplied into the outer tub 20 through the water supply means 80.

Next, when the water level required to rinse the laundry is reached, the pulsator 70 rotates clockwise and counterclockwise according to the driving force of the power transmission device 40 that has received the driving force of the motor 30 as described in the washing stroke described above. Rinse the dirt and detergent from the laundry.

When the final rinsing stroke is repeated by repeating the rinsing stroke a plurality of times, the rinsing completed wash water stored in the outer tub 20 and the dehydration tank 50 is discharged to the outside through the drainage means 90. At this time, the dehydration tank 50 rotates in one direction according to the driving force of the power transmission device 40 to dehydrate the wash water and the wash water permeating the laundry in the dehydration tank 50.

However, the conventional washing machine configured as described above has a problem that the trapping bag 110 filtering the laundry residues is disposed on the upper plate side of the dehydration tank 50 so that the foreign matter collection performance is reduced when the washing is performed at a low water level or less. There was a problem that the harvesting capacity is poor.

Accordingly, it is an object of the present invention to improve the structure of the foreign matter trapping means to improve the foreign matter collecting performance and at the same time to provide a foreign matter trapping device of the washing machine to improve the ability to collect fine foreign matter.

1 is an overall longitudinal cross-sectional view schematically showing the configuration of a conventional washing machine;

2 is a partial cross-sectional view showing a state in which the foreign matter trapping means of the washing machine according to an embodiment of the present invention;

Figure 3 is an exploded perspective view showing the separation of the foreign matter means of the washing machine according to an embodiment of the present invention,

Figure 4 is an exploded perspective view showing a separate check valve of the foreign matter trapping means of the washing machine according to an embodiment of the present invention,

Figure 5 is a side view showing a state in which the check valve of the foreign material catching means according to an embodiment of the present invention is coupled,

Figure 6 is a plan view showing a check valve of the foreign matter holding plate according to an embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

50: dehydration tank 200: foreign body filtering means

300: outer case 400: pocket filter

420: front grill plate 440: rear grill plate

443: slit hole 450: check valve

455: information board

In order to achieve the above object, the foreign material filtering device of the washing machine according to the present invention induces fixing of the check valve to one side of the check valve so as to easily fix the check valve preventing the foreign material from being discharged to one side of the pocket filter. Characterized in that the guide plate is provided.

Hereinafter, a preferred embodiment of the present invention will be described in more detail with reference to the drawings 2-6.

2 to 6, a pulsator 70 is formed at the bottom of the dewatering tank 50 to rotate the clockwise or counterclockwise direction to form a water stream for washing. One side of the inner circumferential surface 50 is provided with a foreign matter filtering means 200 for filtering laundry residues generated during washing.

The foreign material catching means 200 is composed of an outer case 300 for forming a flow path, and a pocket-type filter 400 detachably disposed inside the outer case 300 to collect the foreign matter, the pocket filter 400 ) Is a front grill plate 420 formed with a plurality of outlets 421 so that the washing water is discharged to the central side of the dehydration tank 50 and at the same time a plurality of front screens 410 for filtering foreign matter is disposed, and the front The rear grill plate is coupled to one side of the grill plate 420 to drain the washing water to the inner peripheral surface side of the dehydration tank 50 and at the same time a plurality of outlets 441 are formed so that a plurality of rear mesh 430 to filter foreign matter 440 and the check valve 450 disposed below the rear grill plate 440 to prevent foreign substances collected between the front grill plate 420 and the rear grill plate 440 from being discharged to the outside. Consists of an upper one side of the front grill plate 420 The handle 423 is formed to be concave so as to easily separate or combine the pocket filter 400 from the outer case 300, and the front grill plate 420 and the rear grill plate 440 facilitate cleaning. One side is rotatably coupled by the Hanji board 460, the hanji means 460 is rotatable in the hanji groove 461 formed on the inner surface side of the front plate 420, and the hanji groove 461. Washing water passing through the front net 410 of the front grill plate 420 on the surface of the outer case 300 is made of a Hanji projection 462 protruding on the side of the rear plate 440 to be inserted. A plurality of outflow holes 310 are formed to flow out to the central side of the dehydration tank 50, the inner side of the outer case 300 is the back of the flow of the washing water is raised by the rotational force of the pulsator 70 Guide portion 320 is guided to guide toward the grill plate 440 is formed The inside of the outer case 300 is formed with a guide part 320 for inducing a spray of washing water that is raised by the rotational force of the pulsator 70 toward the rear grill plate 440, and the guide. On the other side where the part 320 is formed, the flow path reduction part 330 is formed to be inclined so as to increase the flow velocity of the portion coupled to the pocket filter 400.

The check valve 450 is a backflow prevention unit 451 which prevents the foreign matter collected in the pocket filter 400 is discharged during the wash water drainage of the inside of the pocket filter 400 in accordance with the drainage operation after the end of washing. And a plurality of inserting portions 453 formed at one end of the backflow preventing portion 452 to be inserted and fixed to the slit holes 443 formed in the rear grill plate 440, and the inserting portions 453 are slit holes ( It is made of a fixing groove 454 formed on the insertion portion 453 side to prevent the separation after being inserted into the 452, the insertion portion 453 is a slit hole 443 at the end of the insertion portion 453 Guide plate 455 is attached to facilitate the passage through the guide plate 455 is pulled through the slit hole 443 to insert the insertion portion 453 into the slit hole 443, and then removed.

The check valve 450 is made of a rubber member, the thickness and the size of the guide plate 455 is formed to a size that is easily passed through the slit hole 443.

Reference numeral 423 denotes a handle part for facilitating attachment and detachment of the pocket filter 400.

Next, a description will be given of the operation and effects on the foreign matter filtering device of the washing machine according to the present invention configured as described above.

First, the assembling process will be described. The guide plate 455 of the check valve 450 made of a rubber member is passed through the slit hole 443 of the rear grill plate 440 to pull the insertion portion 453 into the slit hole. After fixing to the 443, the guide plate 455 is removed, and the hinge groove 462 protruding from the upper end of the rear grill plate 440 is formed inside the upper plate of the front grill plate 420. 461) to be rotatably fixed, and the pocket filter 400 formed by combining the front grill plate 420 and the rear grill plate 440 as described above of the outer case 300 disposed on the inner circumferential surface of the dehydration tank 50. Insert it inside to fix it.

In the assembling process, the guide plate 455 of the check valve 450 eliminates a long insertion time by forcibly inserting the insertion portion 453 into the slit hole 433.

Referring to the operation, as the pulsator 70 is rotated by a power transmission device (not shown) during the washing stroke, the water flow at the bottom of the dewatering tank 50 is pushed toward the inner circumferential surface of the dewatering tank 50 and out. The water flow raised along the case 300 is sprayed toward the rear grill plate 440 by the guide part 320 formed inside the outer case 300, and circulated upward along the rear grill plate 440. Discharged to the outside of the pocket filter 400 through the front net 410 and the rear net 430, foreign matter collected between the front grill plate 420 and the rear grill plate 440 is pushed upwards The state of collection proceeds from the top of the pocket filter 400 to the lower side, the washing water is discharged to the inlet side of the pocket filter 400 when the drainage after the end of the wash, at this time, the back flow of the check valve 450 that the foreign material will flow out To be blocked by the prevention part 451 do.

After dehydration is completed, the dehydration proceeds, the foreign matter collected in the pocket filter 400 by the centrifugal force is attached to the rear side of the pocket filter 400, the foreign matter attached to the rear side of the pocket filter 400 is the next washing stroke is in progress As a result of being blown away from the back of the pocket filter 400 by the jet pressure of the washing water is transferred to the front, the foreign matter is in turn.

According to the foreign matter trapping device of the washing machine according to the present invention as described above, as the guide plate is formed on one end of the check valve, the insertion portion of the check valve made of rubber can be inserted and fixed through the slit hole of the small rear grill plate. When the insertion work is difficult to easily fix by the guide plate when the assembly time can be reduced.

Claims (1)

And a guide plate for inducing the fixing of the check valve to one side of the check valve so as to easily fix the check valve to prevent the foreign substance from being discharged.