KR19990016473A - Cover coupling structure of foreign material trapping device for washing machine - Google Patents

Abstract

The present invention relates to a cover coupling structure of a debris cleaning device for a washing machine, wherein the filter case is radially installed on the inner wall of the dewatering tank for storing laundry, and the front cover is detachably mounted to the filter case, and the front cover is provided. It is coupled to the hinge means is provided with a foreign matter trapping device provided as a rear cover for collecting the foreign matter generated in the laundry during the administration of the laundry, to easily separate the filter consisting of the front and rear cover as well as to remove the foreign matter collected in the filter Not only can it be easily removed, but it can also prevent the rear cover from easily opening when detached from the filter case.

Description

Cover coupling structure of foreign material trapping device for washing machine

The present invention relates to a cover coupling structure of the foreign matter trapping device for a washing machine, and more particularly, to improve the structure of the front cover and the rear cover coupled thereto, the foreign matter trapped to easily remove the foreign matter filtered by the foreign matter filtering means. The cover coupling structure of the device.

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.

In this way, when the final rinsing stroke is repeated by repeating the rinsing cycle a plurality of times, the wash 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 filter which combines the rear cover to the front cover for collecting the foreign matters of the laundry as described above pushed down from the top of the filter case, it is inconvenient to remove the filter and remove the collected foreign matters, as well as delay time. In particular, since the rear cover is easily opened with respect to the front cover when the filter case is separated from the filter case, there is a problem that foreign substances are poured into the dehydration tank.

The present invention is to solve the above problems, an object of the present invention by changing the structure of the filter case and the filter attached to the dewatering tank, it is easy to separate the filter as well as to easily remove the foreign matter collected in the filter. The present invention provides a cover coupling structure of a foreign material filtering device for a washing machine that can be removed.

Another object of the present invention to improve the structure of the front cover and the rear cover coupled to the filter to provide a cover coupling structure of the foreign matter trapping device for a washing machine that can prevent the cover from being easily opened when separated from the filter case. .

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 a coupling structure of the front and rear cover in the foreign matter trapping apparatus according to the present invention,

FIG. 6 is a sectional view taken along the line A-A of the front and rear covers shown in FIG.

Explanation of symbols for 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: hinged hole

68b: fitted rail 68c: discharge hole

70a: accommodation groove 72: hinge protrusion

74: locking portion 76: departure prevention projections

78: check valve

Features of the present invention for achieving the above object, the 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; It is achieved by being equipped with a rear cover coupled to the front cover by a hinge means for collecting the foreign matter produced in the laundry during the laundry administration.

Hinge means according to a preferred embodiment of the present invention is achieved by a hinge hole provided in the front cover to be inserted into the hinge protrusion protruding on the lower both sides of the rear cover and the hinge protrusion to rotatably open and close the rear cover.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the cover coupling structure of the foreign matter cleaning device for a washing machine according to the present invention will be described in detail.

3 and 4 is a view showing a cover coupling structure of the foreign matter trapping device according to the present invention, while receiving the driving force of the drive motor 14 to the bottom surface of the outer tank 12 including the dehydration tank 20 while rotating The pulsator 26 is installed to make a special water flow for washing, and a debris trapping device for filtering foreign substances generated in the laundry during the washing stroke 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. The front cover 68 and the rear cover 70 are coupled to each other by hinge means, and the hinge means includes a hinge protrusion 72 and a rear cover 70 which protrude from both lower sides of the rear cover 70. It is provided with a hinge hole 68a provided in the front cover 68 so that the hinge protrusion 72 is inserted to open and close rotatably.

On the inner side of the front cover 68, a fitting rail 68b into which both sides of the rear cover 70 are fitted is formed in the vertical direction to increase the bonding force, and the upper portion of the front cover 68 locks the filter 62 to the filter case 60. And a locking portion 74 is integrally formed to release the discharge portion, and the lower portion of the locking portion 74 discharges water flowing along the flow path P formed when the filter case 60 is installed to the waterfall flow. A ball 68c is provided.

An accommodating groove 70a is formed in the inner lower portion of the rear cover 70, and a separation prevention protrusion 76 is integrally formed on the bottom and the wall of the accommodating groove 70a, and the filter is disposed in the receiving groove 70a. A check valve 78 made of a rubber material is fitted to block foreign matter collected in the 62 from being discharged into the dehydration tank 20.

An operation of the cover coupling 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, when the rear cover 70 is coupled while the hinge protrusion 72 is inserted into the hinge hole 68a of the front cover 68, both sides of the rear cover 70 are fitted to the fitting rails 68b of the front cover 68. Is fitted and detachably mounted to the square hole 60a of the filter case 60.

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 78 fitted in the receiving groove 70a 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. .

When the washing operation is finished and the washing water is drained, the check valve 78 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 discharged back through the inlet of the filter 62. While blocking foreign matters from leaking back into the dehydration tank 20, and when the drainage is completed, the washing water is supplied through the water supply port 24, and then rinsing and dehydrating strokes are sequentially performed to dehydrate the wash water.

In addition, in order to remove the foreign matter collected in the filter 62 after the dehydration stroke, if the finger is inserted into the insertion hole 60c of the filter case 60 and pressurized, the locking portion 74 of the front cover 68 moves downward. The locking is released while being pushed so that the filter 62 can be easily separated from the front of the filter case 60, and the rear cover 70 coupled to the front cover 68 can be easily removed to remove foreign substances. .

According to the cover coupling structure of the foreign matter trapping device for a washing machine according to the present invention as described above, by changing the structure of the filter case and the filter attached to the dewatering tank, it is easy to separate the filter as well as the foreign matter collected in the filter It can be easily removed.

In addition, by improving the structure of the front cover constituting the filter and the rear cover coupled to it can prevent the cover from being easily opened when separated from the filter case.

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 (3)

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; The cover coupling structure of the foreign matter trapping device for a washing machine, which is coupled to the front cover by a hinge means and is provided as a rear cover for collecting foreign substances generated in the laundry during the washing operation. According to claim 1, The hinge means for the washing machine characterized in that the hinge projection protruding on the lower both sides of the rear cover and the hinge hole provided in the front cover so that the hinge projection is inserted to rotatably open and close the rear cover Cover coupling structure of foreign material catching device. The cover coupling structure of claim 1, wherein a fitting rail is formed in a vertical direction so that both sides of the rear cover are fitted in order to increase the coupling force of the rear cover.