KR20000011964U - Debris removal device for drum washing machine - Google Patents

Abstract

The present invention relates to a debris removal device of a drum washing machine in which a washing drum is rotatably installed about a transverse direction in a tub filled with washing water, and in particular, a housing formed to attach water to one side wall of the drum and It has a filter net assembly that filters foreign matters circulating in the inside, and the water inlet of the housing is equipped with a water barrier door that opens and closes the water inlet of the housing according to the direction of rotation of the drum so that it can be collected while rotating with the drum. It is possible to sufficiently remove the foreign matter of the washing water in the rotating drum in the stroke and rinsing stroke to prevent the contamination of the laundry by the foreign matter in the wash water, it is possible to increase the washing efficiency.

Description

Apparatus for removing waste by drum type washing machine

The present invention relates to a drum washing machine, and more particularly, attaches a housing formed to circulate water on one side of the drum, and includes a filter net assembly for filtering foreign matters of the water circulated inside the housing, and a drum at the water inlet of the housing. By mounting a water barrier door that opens and closes the water inlet of the housing according to the rotational direction of the housing, it is possible to collect foreign substances while rotating with the drum, so as to sufficiently remove foreign substances in the washing water in the drum rotating in the washing stroke and the rinsing stroke. It relates to a debris removal device of the drum washing machine.

In general, a washing machine includes a pulsator type using water flow by rotation of a pulsator and a drum type using vertical dropping of laundry by rotation of a drum.

Among them, as shown in FIG. 1, the drum washing machine includes a drum 11 in which laundry is loaded, a plurality of lifts 13 and drum 11 attached to an inner circumferential surface of the drum 11 to lift laundry. Tub 15 is installed in the outer periphery of the case, the bottom plate (1a) of the case 1 and several dampers (17), which is installed between the tub 15 to support the tub 15, both sides of the upper end of the tub (15) And a coil spring 19 for elastically connecting the upper plate 1b of the case 1, a balance weight 21 fixed horizontally to both sides of the coil spring 19, and a door 23 serving as an entrance and exit of laundry. , A drum slide (25) forming one side of the drum (11), a drum shaft (27) fixed to the drum slide (25) serving as a rotating shaft of the drum (11), and a bearing supporting the drum shaft (27). The bottom surface of the drum pulley 33 and the tub 15, which are inserted into the housing 29, the bearing 31, and the end of the drum shaft 27 by a serration shaft. It is coupled between the fixed motor 35, the drum pulley 33 and the motor pulley 37 is connected to the bottom surface of the belt 39, the tub 15 for transmitting the power of the motor 35 to the drum pulley 33 It is composed of a drain hose 41 and the drain pump 43, which serves to drain the wash water, the door bellows 45 for connecting the tub 15 and the case (1).

Therefore, when the laundry is put in the drum 11 and the washing machine is operated, the water is supplied to the drum 11 through the water supply valve and the motor 35 is driven after a predetermined amount of water is supplied. The rotational force is transmitted to the drum 11 through the motor pulley 37 → belt 39 → drum pulley 33 → drum shaft 27 → drum slide 25 so that the drum 11 rotates. In this way, when the drum 11 rotates, the laundry in the drum 11 is lifted upward by the lift 13 formed on the inner circumferential surface of the drum 11 and then drops downward. Is washed by.

During this washing process, the drum 11 rotates at the low speed (about 50-55 rpm) at the forward and reverse speeds, and when dehydrated, the drum 11 rotates at the high speed (about 800-1000 rpm) and dewatered. Water exits the tub 15 through a number of fine holes (not shown) formed in the circumferential wall of the drum 11 and is then drained out by the drain pump 43 through the drain hose 41.

On the other hand, in the washing process and rinsing and dehydration process, the tub 15 generates vibration in the longitudinal direction due to the drop impact of the laundry according to the rotation of the drum 11, wherein the coil spring 19 is elastic force Absorb the impact force caused by vibration. In addition, the damper 17 attenuates the vibration of the coil spring 19 according to the impact force so that the vibration of the tub 15 is smoothly attenuated, and the counterweight 21 balances the center of the tub 15 so that the tub 15 is reduced. This will cancel out vibrations.

However, since the drum washing machine does not have a structure and a device for separately filtering foreign substances such as a fiber chamber separated from the laundry during washing and rinsing, and relatively large particles of contaminants, the washing water contaminated by the foreign matter has to be washed. There is a problem that contaminates.

In addition, the foreign matter in the wash water is not drained during the washing cycle and the rinsing stroke, it remains in the laundry as it is, there is a problem that lowers the washing efficiency.

Existing pulsator washing machine is equipped with a debris removal device using a foreign matter strainer that is installed on one side of the inner peripheral surface of the washing tank. In other words, this allows the foreign matter to be trapped in the strainer in the course of the flow of the water flow by the rotation of the pulsator through the foreign matter strainer.

However, the debris removal device of the pulsator washing machine does not expect to sufficiently collect foreign substances in the washing water because it uses only water flow in a state where the strainer is fixed at a predetermined position. .

Therefore, the present invention has been devised in view of the conventional problems as described above, so that the debris can collect foreign substances while rotating together with the drum to sufficiently remove foreign substances in the washing water in the drum rotating in the washing stroke and the rinsing stroke. It is an object of the present invention to provide a debris removal device of a drum washing machine.

1 is a partial cutaway cross-sectional view showing a typical drum washing machine

2 is a partial cutaway cross-sectional view showing a drum washing machine to which the debris removing device according to an embodiment of the present invention is applied;

Figure 3 is a perspective view of a partially cut away showing the debris removal device of the drum washing machine according to an embodiment of the present invention

Figure 4 as showing the action of the debris removal device of the drum washing machine according to an embodiment of the present invention,

Figure 4a is a cross-sectional view showing the debris removal when the drum rotates clockwise

Figure 4b is a cross-sectional view showing the debris removal when the drum rotates counterclockwise

Explanation of symbols on the main parts of the drawings

111: drum 150: debris removing device

151 housing 152 inlet

153: outlet 155: filter net assembly

158: strainer 159: barrier door

The present invention for achieving the above object is a drum washing machine in which a washing drum is installed to be rotatable about a transverse direction in a tub filled with washing water, and is attached to one side wall of the drum so that the washing water is circulated therein during rotation. It is characterized in that it provides a debris removal device of a drum washing machine including a formed housing and a strainer assembly for filtering foreign substances in the washing water circulated in the housing.

In addition, the dregs removal device of the drum washing machine according to the present invention is formed through the inlet through which the washing water flows into the inside when rotating on both side walls of the housing, the outlet through which the washing water introduced into the inlet is discharged through the drum, When rotating, the water inlet in the direction of rotation is opened by the pressure of the washing water, the water inlet in the opposite direction of rotation is characterized in that the door is installed respectively.

Hereinafter, an embodiment of the present invention will be described in more detail based on the accompanying drawings.

Figure 2 shows a drum washing machine to which the debris removing device according to an embodiment of the present invention is applied, the drum washing machine is attached to the drum 111, the inner circumferential surface of the drum 111, which contains the laundry, and lifts the laundry. A plurality of lifts 113 to serve, tubs 115 installed on the outer side of the drum 111, and several dampers 117 installed between the bottom plate of the case 101 and the tubs 115 to support the tubs 115. ), A door 123 serving as an entrance and exit of laundry, a drum slide 125 forming one side of the drum 111, and a drum shaft 127 fixed to the drum slide 125 to serve as a rotating shaft of the drum 111. And a motor for rotating the drum shaft 127 by using a bearing housing 129 and a bearing 131 supporting the drum shaft 127, a drum pulley 133, a motor pulley 137, and a belt 139 ( 135, the drain hose 141 and the drain pump 14 connected to the bottom of the tub 115 serves to drain the wash water 3), the door 115 and the bellows 145 connecting the tub 115 and the case 101 are provided, and the debris removing device 150 is attached to one side wall of the drum 111.

Here, the debris removing device 150 of the drum washing machine according to an embodiment of the present invention is attached to one inner wall of the drum 111, as shown in Figures 3 and 4a and 4b circulating the washing water inside the rotation A housing 151 formed so as to be provided, a filter net 158 assembly installed to circulate the foreign matter of the wash water circulated in the housing 151, and a water barrier door 159 to control the flow of water circulated into the housing 151. It is composed of

In other words, the housing 151 is formed of a rectangular housing having a space 151a therein, and both sides of the wall 145 have inlets 152 through which washing water flows into the internal space 151a. An outlet 153 through which the washing water introduced into the inlet 152 flows out is formed. That is, as the strainer assembly 155 is positioned between the inlet 152 and the outlet 153, the wash water introduced to the inlet 152 must be discharged to the outlet 153 after passing through the strainer assembly 155. .

In addition, the strainer assembly 155 has a structure in which the strainer 158 is positioned between the front case 156 and the rear case 157. An inlet side through hole 157a is formed between the rear case 157 and the front case 156 to allow the water introduced into the inlet 152 of the housing 151 to flow therein. An outflow side throughhole 156a through which the water flowing into the inflow side throughhole 157a and passing through the strainer 158 flows out toward the outlet port 153 of the housing 151 is formed. At this time, the strainer 158 is attached to the front inner side of the front case 156.

In addition, the inlet 152 of the housing 151 is provided with a water barrier door 159 that is opened and closed by the pressure of the washing water when the drum 111 rotates. That is, the water barrier door 159 opens the inlet 152 located in the rotational direction of the drum 111 by the pressure of the washing water, and closes the inlet 152 located in the opposite direction of rotation. At this time, the water barrier door 159 is formed wider than the inlet 152 of the housing 151, the one end is fixed to one side of the inlet 152, the other end is bent to the flexible rubber plate to open and close the inlet 152 freely bent. It may be made, or made of a hard metal plate and a plastic plate, etc. to rotate through the hinge (159a).

Referring to the operation of the subject innovation is configured as follows.

First, when the laundry is filled in the drum 111 and the washing machine is operated in a state in which a predetermined amount of washing water is supplied to the tub 115 and the drum 111, the washing process proceeds to the washing stroke. Forward and reverse operation is performed by the control means.

The rotational force of the motor 135 operated as described above is directly transmitted to the drum 111 through the drum shaft 127 and the drum slide 125 so that the drum 111 rotates, and thus the drum 111 rotates. The laundry in the drum 111 is repeatedly lifted upward by the lift 113 formed on the inner circumferential surface of the drum 111 and then drops downward. The laundry is washed by the impact force during the drop.

In this process, for example, when the drum 111 is rotated in a clockwise direction, the housing 151 attached to the drum 111 is synchronously rotated together with the strainer assembly 155 and the water barrier door 159 to wash the wash water. Will pass.

At this time, the door 159 installed in the inlet 152 of the clockwise housing 151 opens the inlet 152 by the pressure of the wash water, as shown in FIG. 4A. Accordingly, the wash water flows into the housing 151 through the open inlet 152, passes through the strain screen 158 of the strain screen assembly 155, and flows out again into the drum 111 through the outlet 153. At this time, the strainer 158 will collect the foreign matter of the wash water passing through.

On the other hand, when the drum 111 is rotated counterclockwise, the door 159 installed in the inlet 152 of the housing 151 in the counterclockwise direction is inlet 152 by the pressure of the wash water as shown in FIG. ) Is opened. Accordingly, the washing water flows into the housing 151 through the open inlet 152, passes through the strainer 158 of the strainer assembly 155, and flows back into the drum 111 through the outlet 153. The strainer 158 collects the foreign matter of the washing water passing therethrough.

As described above, the present invention allows the trapping net to directly collect the foreign matter in the washing water while rotating together with the drum, as well as to enable one-way filtering according to the rotational direction of the drum. Compared with the indirect circulation of the wash water, foreign substances in the wash water in the drum can be sufficiently filtered and removed, thereby preventing contamination of the laundry due to the foreign matter in the wash water and reduction of washing efficiency.

Although the present invention has been shown and described with respect to particular embodiments, it is well known in the art that various modifications and changes can be made without departing from the spirit and scope of the invention as indicated by the accompanying Utility Model Claims. Anyone who owns it can easily find out.

Claims (1)

In a drum washing machine in which a washing drum 111 is rotatably installed in a transverse direction in a tub 115 filled with washing water, the washing drum 111 is attached to one side wall of the drum 111 so that the washing water is rotated on both sides of the drum. The inlet 152 is formed to penetrate through, and the outlet 153 through which the washing water flowing into the inlet 152 flows out, and when the drum 111 rotates, The inlet 152 in the rotating direction is a housing 151 in which a water barrier door 159 is installed to close the inlet 152 in the opposite direction of rotation, and the wash water circulated in the housing 151. Debris removal device of the drum washing machine comprising a filter net assembly (155) for filtering foreign matter.