KR100300124B1 - Drum Washing Machine - Google Patents

Abstract

The present invention relates to a drum type washing machine having a casing and a tub accommodated in the casing and having a water inlet for inflow of wash water, the valve member being rotatably disposed in the tub to open and close the water inlet; And rotating means for rotating the valve member to open the water supply port when the washing water is introduced through the water supply port, and rotating the valve member to shut off the water supply port when the inlet of the washing water is finished. Thereby, the drum type washing machine which can open and close the water inlet formed in the tub smoothly is provided.

Description

Drum Washing Machine

The present invention relates to a drum type washing machine, and a drum type washing machine having a casing and a tub accommodated in the casing along a horizontal axis of the casing and having a water inlet for inflow of washing water.

5 is an exploded perspective view of a conventional drum type washing machine, FIG. 6 is an enlarged cutaway perspective view of the tub of FIG. 5, and FIG. 7 is an enlarged cross-sectional view of the flap valve region of FIG. 6. As shown in these figures, the washing machine has a rectangular tubular shape that is upwardly opened and a casing 101 having a front opening 103 for entering and exiting laundry on its front surface, and a plate-shaped saw coupled to the upper end of the casing 101. The cover 105 has a door 107 which is coupled to pivotally open and close the front opening 103 of the casing 101.

In the casing 101, a tub 115 having a drum shape with one side open is provided. A spring member 117 having one end coupled to the upper opening of the casing 101 is coupled to the upper region of the tub 115, and a plurality of shock absorbers 118 to buffer the tub 115 in the lower region. Is combined.

The tub 115 has a rotating shaft 123 disposed along the front and rear directions of the casing 101, and a spin basket 119 having a cylindrical shape having one side opened therein is rotatable. The spin basket 119 is formed with a plurality of dehydration holes 121 penetrating along the circumferential surface, and the rotation shaft 123 extends outwardly on the opening opposite side of the spin basket 119. The rotating shaft 123 is installed to pass through the tub 115, and the driven pulley 125 is coupled to the exposed side end.

A drive motor 127 for forward and reverse driving of the spin basket 119 is coupled to the lower region of the tub 115, and a drive pulley 129 is provided on the rotation shaft of the drive motor 127. The driving pulley 129 and the driven pulley 125 are connected to each other by the belt 131 so as to be rotatable along the same direction.

Meanwhile, an operation panel 111 having a plurality of operation buttons 113 is provided in the upper front region of the casing 101 so as to select a washing course, and a detergent container containing detergent on one side of the operation panel 111. Detergent container 110 is provided to accommodate the (109). In the upper region of the detergent container accommodating part 110, a water supply part 112 is provided to spray the washing water with the injection hole downwardly opened into the detergent accommodating space of the plurality of compartments of the detergent container 109.

In the rear region of the casing 101 is provided a connection portion 114 to which a water supply pipe (not shown) for supplying water from the outside is connected, and a water supply valve 116 is provided at the connection portion 114 to control the flow of washing water. Are combined. Supply pipe 135 is coupled to the outlet side of the water supply valve 116, the other end of each supply pipe 135 is connected to the water supply unit 112, respectively. In the lower region of the detergent container accommodating part 110, a water collecting part 137 is formed to temporarily accommodate the washing water falling together with the detergent from each detergent accommodating area of the detergent container 109. The lower end of the collecting portion 137 is coupled to the connecting pipe 139, one end of which is connected to the tub 115.

A through hole 141 is formed in the front end of the tub 115 so as to pass through the plate surface so that the connection pipe 139 can be coupled, and the boss protruding from the plate surface in the inner through hole 141 region of the tub 115. The part 143 is formed. The boss portion 143 opens the water inlet 140 when water is supplied to the wash water, and a flap valve 147 that elastically blocks the water inlet 140 when water is finished is fixed by the screw 145.

By this configuration, when the laundry is accommodated in the spin basket 119 and the washing course is selected, the controller (not shown) controls the water supply valve 116 to supply the washing water into the tub 115. The water supply valve 116 is opened and the wash water introduced into the water supply unit 112 is injected into the detergent receiving area and introduced into the tub 115 through the connection pipe 139 together with the detergent. At this time, the flap valve 147 is rotated so that the water inlet 140 is opened by the inflow force of the wash water, the water supply 140 of the wash water is terminated and at the same time shut off the water inlet 140 with its own elastic force.

By the way, in such a conventional drum type washing machine, as the use period elapses, the pressure according to the water supply acts repeatedly on the flap valve, thereby reducing the elastic force of the flap valve. Therefore, when the flap valve does not properly block the water inlet, there is a problem that the foam formed by the detergent during the washing rises through the connecting pipe. In addition, in the case of having a drying function, there is a fear that air in the tub heated during drying may flow out of the tub through the connecting pipe.

Accordingly, it is an object of the present invention to provide a drum type washing machine that can smoothly open and close the water supply formed in the tub.

1 is an exploded perspective view of a drum type washing machine according to the present invention;

Figure 2 is an enlarged perspective view of the cut of the tub of Figure 1,

3 is a front view of the engaged state of the valve member of FIG.

4 is an enlarged perspective view of a cutaway view of the valve member of FIG. 4;

5 is an exploded perspective view of a conventional drum type washing machine,

Figure 6 is an enlarged perspective view of the cut of the tub of Figure 5,

7 is an enlarged cross-sectional view of the flap valve region of FIG. 6.

* Explanation of symbols for the main parts of the drawings

1: casing 9: detergent container

10: detergent container 15: tub

37: collecting part 39: connector

40: water supply port 41: through hole

49: rotating pin 53: valve member

55: blocking portion 57: support portion

The object of the present invention is a drum-type washing machine having a casing and a tub accommodated in the casing and having a water inlet for inflow of wash water, wherein the tub is rotatably disposed in the tub to open and close the water inlet. A valve member; Rotating means for rotating the valve member to open the water supply port when the inlet of the wash water through the water inlet, and rotating means for rotating the valve member so that the water inlet is blocked when the inlet of the wash water is finished. Type washing machine. When used, it is achieved by a drum-type washing machine having a tub with a water inlet for inflow of wash water.

Here, the rotation means includes a rotation pin disposed to be eccentric with respect to the axis of the water supply port and protruding from the tub, and a rotation pin hole formed in the valve member to receive the rotation pin, the valve member is the rotation pin It is preferable to rotate around.

The valve member may include a blocking portion blocking the water inlet, a support portion extending from the blocking portion, and having the pivot pin hole formed thereon, and being arranged on the same plane as the blocking portion so that the blocking portion blocks the water inlet. It is preferable to include the weight press part to pressurize.

In addition, it may be effective to further include a stopper provided adjacent to the water supply port for limiting the return rotation range of the valve member.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the present invention.

1 is an exploded perspective view of a drum type washing machine according to the present invention, FIG. 2 is an enlarged exploded perspective view of the tub of FIG. 1, FIG. 3 is a front view of a coupled state of the valve member of FIG. 2, and FIG. 4 is a valve of FIG. 4. An enlarged perspective cutaway view of the open state of the member. As shown in these figures, the drum-type washing machine according to the present invention also has a casing (1) having a rectangular opening shape of the upward opening and the front opening (3) formed in the front for the laundry in and out, It has a plate-shaped top cover (5) coupled to the upper end of the casing (1), and a door (7) coupled to pivotally open and close the front opening (3) of the casing (1).

In the casing 1, a tub 15 having a drum shape is elastically supported by the spring member 7 and the shock absorber 18. The tub 15 has a rotating shaft 23 disposed along the front and rear directions of the casing 1, and a spin basket 19 having a cylindrical shape with one open side is rotatably installed.

The spin basket 19 has a plurality of dewatering holes 21 formed therethrough along the circumferential surface thereof, and the rotating shaft 23 extends outwardly on the opening opposite side of the spin basket 19. The rotary shaft 23 is installed to pass through the tub 15, and the driven pulley 25 is coupled to the exposed end.

The lower region of the tub 15 is coupled with a drive motor 27 for forward and reverse driving of the spin basket 19, and a drive pulley 29 is provided on the rotation shaft of the drive motor 27. The driving pulley 29 and the driven pulley 25 are connected to each other by the belt 31 so as to be rotatable along the same direction.

An operating panel 11 having a plurality of operation buttons 13 is provided in the upper front region of the casing 1 to select a washing course, and a detergent container 9 can be pulled out on one side of the operation panel 11. The detergent container accommodating part 10 accommodated is provided. In the upper region of the detergent container accommodating part 10, a water supply part 12 for spraying the washing water toward the detergent container 9 is provided. The rear portion of the casing 1 is provided with a connection portion 14 to which a water supply pipe (not shown) for water supply from the outside is connected, and the water supply valve 16 is connected to the connection portion 14 so as to control the flow of the wash water. Are combined. Supply pipes 35 are coupled to the outlet side of the water supply valve 16, and each supply pipe 35 is connected to the water supply unit 12, respectively.

In the lower region of the detergent container accommodating part 10, a collecting part 37 is formed to temporarily receive the washing water falling together with the detergent from each of the detergent accommodating areas of the detergent container 9 and the lower part of the collecting part 37. In the region, one end of the connecting pipe 39 is connected to the tub 15.

On the other hand, the front end of the tub 15 is formed with a through hole 41 penetrating through the plate surface, the outlet end of the connecting pipe 39 is coupled to the through hole 41. At the upper edge of the through hole 41 in the tub 15, a pivot pin 49 is formed at a position eccentric with respect to the vertical center line 65 passing through the center of the through hole 41. A screw hole is formed along the axis of the pivot pin 49, and a valve member 53 having a pivot pin hole 63 formed therein is rotatably coupled to the pivot pin 49 to accommodate the pivot pin 49. . The washer 61 is fixed to the end of the rotation pin 49 by the screw 52 so as to prevent the valve member 53 from being separated.

The valve member 53 rotates in a disk-shaped blocking portion 55 for blocking the water supply port 40 formed at the outlet end of the connecting pipe 39 and extends in a radial direction from the blocking portion 55 and penetrates through the plate surface. The support part 57 in which the pinhole 63 was formed, and the weight-pressure part 59 extended so that the pin part 63 may have a predetermined inclination angle with respect to the interruption | blocking part 55 from the support part 57 may be provided. The weight pressing unit 59 is disposed to face the blocking unit 55 with the vertical center line 67 passing through the pivot pin hole 63 therebetween, so that the blocking unit 55 may block the water supply port 40. Done. A weight body (not shown) is preferably embedded in the free end portion of the weight pressing section 59. The stopper 69 protrudes from the edge of the water supply port 40 so as to contact the blocking portion 55 and prevent the return rotation of the blocking portion 55.

By this configuration, when the laundry is accommodated in the spin basket 19 and the washing course is selected, the controller (not shown) controls the water supply valve 16 so that the washing water is supplied into the tub 15. The water supply valve 16 is opened and the wash water introduced into the water supply unit 12 is sprayed into the detergent receiving area and is directed toward the water supply port 40 through the connecting pipe 39 together with the detergent.

At this time, when the wash water flows into the water inlet 40, the valve member 53 is rotated about the pivot pin 49 to the shaft to open the water inlet 40 by the inflow force of the wash water. When the water supply is finished, the blocking portion 55 is rotated to block the water supply port 40 by the weight presser 59, and the blocking portion 55 is a stop protrusion 69 provided at the edge of the through hole 41. It is stopped by the rotation is present in the blocking position of the water supply port (40).

In the above-described and illustrated embodiments, the weight pressing portion which is inclined from the blocking portion is formed and explained, but a spring member may be used as the return rotation means of the blocking portion.

As described above, according to the present invention, there is provided a drum type washing machine that can smoothly open and close the water supply formed in the tub.

Claims (5)

A drum type washing machine having a casing and a tub accommodated in the casing and having a water inlet for inflow of wash water, the drum type washing machine comprising: a valve member rotatably disposed in the tub to open and close the water inlet; Rotating means for rotating the valve member to open the water supply port when the inlet of the wash water through the water inlet, and rotating means for rotating the valve member so that the water inlet is blocked when the inlet of the wash water is finished. Type washing machine. (Correct) The rotation means according to claim 1, wherein the rotation means includes a rotation pin which is disposed to be eccentric with respect to the axis of the water supply port and protrudes from the tub, and a rotation pin hole formed in the valve member to receive the rotation pin. And the valve member is rotated about the pivot pin. (delete) (Correct) The valve member according to claim 2, wherein the valve member is formed to be disposed on the same plane as the blocking portion for blocking the water supply port, a support portion extending from the blocking portion, and having the pivot pin hole formed thereon, and the blocking portion being Drum-type washing machine comprising a weight pressurizing portion for pressing the blocking portion to block the water supply port. (Correction) The drum type washing machine according to claim 4, further comprising a stopper provided adjacent to the water supply port to limit a return rotation range of the valve member.