KR100223416B1 - The filter apparatus of a washing machine - Google Patents

Abstract

The present invention relates to a filter open structure of a debris filter for a washing machine, wherein a filter case is radially installed on an inner wall of a dewatering tank for storing laundry, and a front cover is detachably mounted to the filter case in front. A foreign matter trapping device is configured as a rear cover which is coupled to the front cover and collects foreign matters in the laundry administration, and the front cover covers the rear cover which has water on the surface during the removal work of the collected foreign matters. By providing an opening means to open about, it is possible to simply open the rear cover during the removal of foreign matters as well as to minimize the damage to the body.

Description

Filter open structure of foreign matter trapping device for washing machine

The present invention relates to an open structure of a foreign matter trapping device for a washing machine, and more particularly, to improve the structure of the filter to easily remove the rear cover coupled to the front cover when removing foreign matter collected by the foreign matter filtering unit. The present invention relates to a filter open structure of a foreign matter trapping device that can be opened.

In general, the fully automatic washing machine is mounted on the bottom surface of the outer tub 12 and the outer tub 12 for storing the wash water installed inside the main body 10 and the inner side thereof to form the washing machine as shown in FIG. The power transmission device 18 receives the driving force of the motor 14 via the belt 16.

Inside the outer tank 12 is provided with a dehydration tank 20 for dewatering the laundry by centrifugal force due to the rotation of the power transmission device 18, the upper portion of the outer tank for maintaining the horizontal of the dehydration tank 20 when dewatering the laundry. A balancer 22 is installed, and a pulsator coupled to the power transmission device 18 to make a special water flow on the bottom surface of the dewatering tank 20 through the water inlet 24 ( 26 is rotatably imparted.

In addition, the lower one side of the outer tank 12 is provided with a drain 28 for discharging the contaminated washing water during the washing and rinsing process, the inner wall of the dehydration tank 20 in the rising water flow due to the rotation of the pulsator 26 In order to filter the foreign matter of the laundry flowing by the foreign matter trapping apparatus shown in Figure 2 is installed radially.

The foreign matter trapping device is composed of a filter case 30 fixedly installed on the inner wall of the dehydration tank 20 and a filter 32 detachably coupled to the inside thereof, and the filter 32 has a handle portion 34a at an upper side thereof. And a front cover 34 and a rear cover 36 hinged thereto, and the front and rear covers 34 and 36 have one side to discharge the washing water into the dehydration tank 20 and at the same time, Filtering nets 38 and 40 are attached respectively for filtering.

A check valve 42 is installed between the front and rear covers 34 and 36 to prevent the collected foreign matter from being discharged to the outside. The check valve 42 is a filter 32 for draining the wash water. ) A plurality of fixing parts provided at one end of the backflow prevention part 42a and the backflow prevention part 42a to prevent the discharge of the foreign matter collected in the slit hole 36a formed in the rear cover 36. And a guide plate 42c attached to 42b and an end thereof so as to insert the fixing portion 42b into the slit hole 36a.

The conventional fully automatic washing machine configured as described above opens a door (not shown) provided in the upper part of the main body 10, and then puts laundry and detergent into the dehydration tank 20, and then supplies a certain amount of washing water through the water supply port 24. When the driving motor 14 is operated in the state, the driving force of the driving motor 14 is transmitted to the power transmission device 18 by the belt 16, and at the same time, the power transmission device 18 decelerates the rotational force and then pulsates it. The eater 26 is rotated to generate water flow in the dehydration tank 20.

That is, the washing water supplied in the dehydration tank 20 in accordance with the rotation of the pulsator 26 creates a water flow up and down by centrifugal force to perform the washing process. At this time, the water flow is pushed to the inner wall of the dehydration tank 20 and at the same time as it rises along the inlet of the filter case 30 and the filter net 38, 40 and the filter case (attached to the front and rear covers 34, 36). 30 is discharged to the dehydration tank 20 through the outlet hole 30a, and the foreign matter collected in the front and rear covers 34 and 36 is pushed upward and collected from the top of the filter 32 toward the bottom. The state proceeds.

Then, when the drainage after the end of washing, the reverse flow prevention portion of the check valve 42 bent so that one end is in contact with the inner circumferential surface of the rear cover 36 by the ejection pressure of the washing water discharged back through the inlet of the filter 32 ( As 42a) is returned to the initial state, the foreign matter is stacked in order as the foreign matter is prevented from leaking into the dehydration tank 20, and the contaminated washing water is drained through the drain hole 28.

When the drainage is completed, the washing water for rinsing is again supplied to the water level required for rinsing through the water supply port 24, and the pulsator 26 is clocked and counterclockwise by the driving force of the power transmission device 18 as described above. Rinse the dirt and detergent from the laundry while rotating in the direction.

When the final rinsing stroke is completed by repeating the rinsing cycle as many times as described above, the washing water stored in the outer tub 12 and the dehydrating tank 20 is drained through the drain hole 28, and the power transmission device 18 is then driven at a high speed in one direction. Dehydrate the wash water that permeates the laundry while rotating.

However, as the rear cover is coupled to the front cover for collecting the foreign matters of the laundry as described above, during the removal of the collected foreign matters, of course, it is not easy to open the rear cover with water on the surface, or use a separate tool or There was a problem in that the rear cover was opened after inserting the user's fingernails into the gap between the front cover and the rear cover closed to it.

The present invention is to solve the above problems, an object of the present invention by changing the structure of the filter detachably mounted to the filter case, it is possible to easily open the rear cover during the removal of the collected foreign matter, of course It is to provide an open structure of the foreign matter trapping device for a washing machine that can minimize the damage to the body.

1 is a cross-sectional view showing the internal structure of a washing machine according to the prior art.

Figure 2 is an exploded perspective view showing a foreign matter trapping device applied to the washing machine of Figure 1,

3 is an exploded perspective view showing a foreign matter trapping device for a washing machine according to the present invention;

Figure 4 is a cross-sectional view of the foreign matter trapping apparatus shown in FIG.

Figure 5 is a perspective view showing the open structure of the filter in the foreign matter trapping apparatus according to the present invention,

6 is a cross-sectional view A-A of the filter shown in FIG. 5.

Explanation of symbols on the main parts of the drawings

60: filter case 60a: square hole

60b: inlet hole 60c: insertion hole

62: filter 64,66: strainer

68,70: front and rear cover 68a: groove

68b: hinge groove 68c: discharge hole

70a: gripper 70b: hinge protrusion

70c: receiving groove 72: locking part

74: departure preventing projection 76: check valve

Features of the present invention for achieving the above object, and a filter case radially installed on the inner wall of the dehydration tank for storing laundry; A front cover detachably mounted forward with respect to the filter case; A debris catching device is configured as a rear cover coupled to the front cover to collect debris of laundry during a washing administration; The front cover is achieved by providing an opening means to open the rear cover with respect to the front cover, the surface of which is wet on the surface during the removal of the collected foreign matter.

The opening means according to the preferred embodiment of the present invention is fitted in the gripper and the hinge groove protruding to be grasped by the user to both the grooves formed on the upper both sides of the front cover and the hinge grooves formed on the bottom and the upper both sides of the rear cover. Loss is achieved by being provided with a hinge protrusion.

Hereinafter, a preferred embodiment of the filter open structure of the foreign material filtering device for a washing machine according to the present invention will be described in detail with reference to the accompanying drawings.

3 and 4 is a view showing the open structure of the foreign matter trapping device according to the present invention, the bottom surface of the outer tank 12 including the dehydration tank 20 receives a driving force of the drive motor 14 to rotate while a special The pulsator 26 is installed to wash the water by washing the water stream, and a debris trapping device for filtering foreign substances generated in the laundry during the washing operation is installed in a radial shape on the inner wall of the dehydration tank 20.

The foreign matter trapping device is composed of a filter case 60 formed with a rectangular rectangular hole 60a and a pocket-shaped filter 62 for collecting foreign matters by being detachably mounted forwardly with respect to the rectangular hole 60a. The inflow hole 60b communicates with the bottom surface of the rectangular hole 60a of the case 60 so that the water flow generated by the pulsator 26 passes. In addition, an insertion hole 60c communicating with the square hole 60a is formed in the upper portion of the front surface of the filter case 60 to easily separate the filter 62.

The filter 62 discharges the washing water introduced through the inflow hole 60b into the dehydration tank 20 and simultaneously filters the front and rear filtering nets 64 and 66 to collect foreign substances generated in the laundry. It consists of a front cover 68 and a rear cover 70 hinged thereto, and the filter 62 simply opens the rear cover 70 in which water is attached to the surface during the removal of collected foreign matter. Open means are provided for this purpose.

The opening means includes a groove 68a formed at both upper sides of the front cover 68, a hinge groove 68b formed at the lower portion thereof, and a gripper 70a protruding from the upper both sides of the rear cover 70 so as to be grasped by the user. It is provided with a hinge protrusion (70b) fitted in the hinge groove (68b).

The upper portion of the front cover 68, the locking portion 72 is integrally molded to lock and release the filter 62 in the filter case 60, the filter case 60 is installed below the locking portion 72 A discharge hole 68c is provided to discharge the water flow rising along the flow path P formed at the time to the waterfall flow.

An accommodating groove 70c is formed at an inner lower portion of the rear cover 70, and a separation preventing protrusion 74 is integrally formed at the bottom and the wall of the accommodating groove 70c, and the filter is disposed at the drainage stroke 70c. A check valve 76 made of rubber material is fitted to block foreign matter collected in the 62 from being discharged into the dehydration tank 20.

The operation of the filter opening structure of the foreign material filtering device for a washing machine according to the present invention configured as described above will be described in detail with reference to FIGS. 5 and 6.

A plurality of filter cases 60 are fixedly installed on the inner wall of the dehydration tank 20 by fixing members, and then the filter 62 is mounted in the filter case 60. That is, the filter 62 is provided with the filter 62 in which the gripper 70a of the rear cover 70 is inserted into the groove 68a formed on both sides of the front cover 68 and the hinge protrusion 70b is inserted into the hinge hole 68b. (60) is detachably mounted to the square hole (60a).

Thereafter, when the driving motor 14 is operated, the driving force thereof is transmitted to the power transmission device 18, thereby rotating the pulsator 26 built in the bottom surface of the dehydration tank 20 to start the washing operation while making water flow. do. That is, the water flow generated by the centrifugal force due to the rotation of the pulsator 26 is raised along the inlet hole 60b of the filter case 60 while being pushed to the inner wall of the dehydration tank 20, so that the front and rear covers 68 ( 70 is discharged to the dehydration tank 20 through the filter nets 64 and 66 attached to the 70, and at the same time, the front cover is raised along the flow path P formed between the dehydration tank 20 and the filter case 60. Water flow is discharged to the discharge hole 68c provided in the 68 as a waterfall to increase the washing efficiency.

At this time, the check valve 76 inserted into the receiving groove 70c of the rear cover 70 is bent to the inner surface of the rear cover 70 by the upward pressure of the water flow, and one end thereof contacts to collect foreign substances generated in the laundry. .

Then, when the washing operation is finished and the washing water is drained, the check valve 76 in contact with the inner circumferential surface of the rear cover 70 is returned to the initial state by the ejection pressure of the washing water flowing back through the inlet of the filter 62 and the foreign matter. Blocking the outflow to the inside of the dehydration tank 20 again, and when the drainage is completed, the washing water is supplied through the water supply port 24, and the rinsing stroke and the dehydration stroke are sequentially performed to dehydrate the wash water.

In addition, when removing the foreign matter collected in the filter 62 after the dehydration stroke, insert the finger into the insertion hole (60c) of the filter case 60, and then press the locking portion 72 of the front cover 68 in the downward direction The locking is released while being pushed to separate the filter 62 forward with respect to the filter case 60, and then hold the front cover 68 with one hand, and the gripper 70a inserted into the groove 68a with the other hand. When the pressure is pulled in the state of holding, the front cover 68 is to simply open the rear cover 70 is wet to the surface to remove the foreign matter collected in the interior thereof.

According to the filter open structure of the foreign matter filter device for a washing machine according to the present invention as described above, by changing the structure of the filter detachably mounted to the filter case to remove the collected foreign matter on the rear cover It can be opened simply and the damage to the body is minimized.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art 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 (2)

A filter case radially installed on an inner wall of the dewatering tank for storing laundry; A front cover detachably mounted forward with respect to the filter case; A debris catching device is configured as a rear cover coupled to the front cover to collect debris of laundry during a washing administration; The front cover is an open structure of the foreign matter trapping device for a washing machine, characterized in that the opening means is provided to open the rear cover with respect to the front cover when the collected foreign matter is removed. The method of claim 1, wherein the opening means is fitted in the gripper and the hinge groove protruding to be gripped by the user to both the grooves formed in the upper both sides of the front cover and the hinge grooves formed in the lower portion and the upper both sides of the rear cover. Open structure of the foreign body holding device for a washing machine, characterized in that provided with a hinge projection.

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