KR20070075211A - Washing machine - Google Patents

Abstract

A washing machine is provided to improve the reliability by solving a complaint of a user due to the detergent and water left in a liquid detergent tub by injecting manner of liquid detergent . A washing machine includes a detergent supply unit for supplying a detergent into the interior of a water vessel. The detergent supply unit includes a housing(40), a detergent case(50), and a liquid detergent tub(60). One side of the housing is opened. The detergent case can be inserted into and withdrawn from the opened portion of the housing. The liquid detergent tub is installed in the detergent case. The liquid detergent tub has a rotational shaft so as to perform a seesaw movement by the hydraulic pressure and load of the washing water supplied into the interior of the detergent case.

Description

Washing machine {WASHING MACHINE}

1 is a cross-sectional view showing a detergent supply device applied to a conventional washing machine.

2 is a perspective view showing the configuration of a washing machine according to the present invention.

      Figure 3 is an exploded perspective view showing the configuration of a detergent supply device in a washing machine according to the present invention.

      Figure 4 is a side cross-sectional view of the liquid detergent container when the detergent case is mounted in the housing in Figure 3;

      5 is a cross-sectional view for explaining the operation of the liquid detergent container in the washing machine according to the present invention.

      * Description of symbols on the main parts of the drawings *

      10: main body 11: tank

      20: water supply device 30: detergent supply device

      40 housing 50 detergent case

      60: liquid detergent container 61: rotating shaft

      62: one end of the liquid detergent container 63a: inclined portion

      64: receiving groove 70: water supply port

      80: return means 81: locking projection

      81a: inclined portion of the locking projection 82: guide projection

      The present invention relates to a washing machine, and more particularly, to a washing machine having a detergent supply device which is installed to be mixed with detergent and washing water to be supplied to the tank.

      Washing machine is a device that removes the stain on the laundry by stirring the laundry, washing water and detergent put into the washing tank using the driving force of the motor. In general, a washing machine includes a detergent supply device so that detergent may be supplied to a water tank together with water.

      1 is a cross-sectional view showing a detergent supply device applied to a conventional washing machine. As shown in FIG. 1, the conventional detergent supply apparatus includes a housing 1 having a box shape with an open front face, and a drawer type detergent case 2 mounted to enter the inside of the housing through an open front face of the housing. It is configured to include. One side of the housing 1 is connected to the water supply pipe (3) to supply water to the detergent case (2). The detergent case 2 is divided into a plurality of spaces so that the user can input the detergent by type. Among these, the detergent input space 2a is a space for injecting liquid detergent such as a rinsing agent and a bleach agent, and the liquid detergent together with the water supplied through the water supply pipe 3 in the detergent input space 2a is a tank of the washing machine. The siphon device 4 is installed so that it can be supplied.

      The siphon device 4 has a cylindrical siphon tube 4a protruding upward from the bottom surface of the detergent injection space 2a and a siphon cap 4b installed on the siphon tube. Therefore, when the user inputs the liquid detergent to the proper height (h) of the detergent input space (2a) and is mounted in the housing 1 as shown in Figure 1, while the water is supplied to the detergent input space (2a) through the water supply pipe (3) According to the siphon principle, the liquid detergent in the detergent input space 2a is supplied to the bath of the washing machine together with the water.

      However, since the conventional detergent supply device has a configuration of supplying a liquid detergent to the water tank of the washing machine through the siphon device 4 using the siphon principle, it is always in the detergent case 2 even after the liquid detergent is added. There is a problem that only water can be created. In FIG. 1, the reference numeral 'R' indicates such a residual number. When water is left in the detergent case 2 in this way, the user has the inconvenience of throwing away the water left in the detergent case 2 when the next wash and put a liquid detergent.

      The present invention is to solve such a problem, it is an object of the present invention to provide a washing machine that can prevent the remaining water or detergent in the detergent supply device by improving the input method of the liquid detergent.

Washing machine according to the present invention for achieving this object is a washing machine having a detergent supply device for supplying detergent to the inside of the tank, the detergent supply apparatus is a housing having an opening is formed on one side, can be advanced through the opening And a detergent case installed so as to be installed in the detergent case, and a liquid detergent container having a pivotal shaft so as to perform a seesaw movement by a hydraulic pressure or a load of the wash water supplied into the detergent case.

      The detergent supply device may further include a water supply port for supplying wash water toward one end of the liquid detergent container.

When the wash water is supplied into the housing, one end of the liquid detergent container is inclined downward, and the liquid detergent contained in the liquid detergent container is supplied toward the tank.

The bottom surface of the liquid detergent container is preferably provided with an inclined portion that is inclined upward toward one end of the liquid detergent container.

      The housing has a guide protrusion located at the bottom of the liquid detergent container to rotate one end of the liquid detergent container upward when the user withdraws the detergent case.

      At this time, the guide protrusion is preferably extended to a predetermined length toward the opening of the housing to support the liquid detergent container when the user draws out the detergent case to put the liquid detergent in the liquid detergent container.

      The liquid detergent container protrudes downward from the one end and has a locking protrusion that interferes with the guide protrusion when the detergent case is drawn out.

      The locking protrusion is formed on a side surface that interferes with the guide protrusion, and has an inclined portion that slopes downward toward the rear side.

The housing includes a top plate positioned above the liquid detergent container when the detergent case enters the inside of the housing, and the water supply port is formed on the top plate at a position corresponding to the position of one end of the liquid detergent container. Can be.

      One end of the liquid detergent container is preferably formed with a receiving groove to accommodate a certain amount of water in the wash water supplied toward the liquid detergent container.

In addition, a washing machine according to the present invention includes a washing machine having a detergent supply device for supplying detergent into a water tank, wherein the detergent supply device includes: a housing having an opening formed at one side; and a detergent case installed to be retractable through the opening. And a liquid detergent container installed on the detergent case to enable the seesaw movement around the pivot shaft, and to be inclined to one side by water pressure or a load of the wash water supplied when water is supplied toward one end thereof. And return means for returning the liquid detergent container inclined by the number back to a horizontal state.

      Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail. Figure 2 is a perspective view showing the configuration of a washing machine according to the invention, Figure 3 is an exploded perspective view showing the configuration of the detergent supply apparatus in the washing machine according to the invention, Figure 4 is a liquid when the detergent case in Figure 3 is mounted in the housing This is a side sectional view of a detergent container.

As shown in FIG. 2, the drum washing machine according to the present invention includes a main body 10 forming an external appearance, a water tank 11 installed inside the main body 10 and storing wash water at the time of washing, and a water tank 11. It is rotatably installed in the interior of the laundry provided with a washing tub 12 for washing the laundry. The front surface of the main body 10 is provided with a door 13 to open and close the opening for input of laundry, and a control panel (not shown) for controlling the operation of the drum washing machine.

A water supply device 20 and a detergent supply device 30 for supplying the washing water and the detergent to the water tank 11 are respectively installed in the upper portion of the main body 10, and the water tank 11 is disposed in the lower portion of the main body 10. A drain pump 14 and a drain pipe 15 for discharging the wash water contained in the main body 10 to the outside are installed. In addition, a lower portion of the water tank 11 is provided with a drive motor 16 that enables washing, rinsing, and dehydration operations while rotating the washing tank 12 clockwise or counterclockwise.

The water supply device 20 is connected to an external water supply hose (not shown), and connects the plurality of water supply valves 21 and 22 to control the water supply, and the water supply valves 21 and 22 and the detergent supply device 30. It comprises a plurality of water supply pipes (23, 24, 25), and a connecting pipe 26 for guiding the washing water passed through the detergent supply device 30 into the water tank (11).

As shown in FIGS. 3 and 4, the detergent supply device 30 includes a box-shaped housing 40 having an opening portion 41 formed on a front surface thereof, and a housing (through an opening portion 41 of the housing 40). 40 is provided with a detergent case 50 installed to be entered or withdrawn from inside or outside. The housing 40 includes a lower case 42 forming a space for accommodating the detergent case 50, and an upper case 43 disposed above the lower case 42.

The upper case 43 has a water supply channel 45, 46 partitioned into a plurality of spaces through the partition plate 44, and the rear end of the upper case 43 has respective water supply channels 45, 46. Inlets 45a and 46a to which the water supply pipes 23 and 24 are connected may be formed to supply water.

An upper plate 47 is provided between the lower case 42 and the upper case 43 to cover the upper side of the detergent case 50 when the detergent case 50 enters the interior of the housing 40.

The lower case 42 has an outlet 48 formed on the rear side of the bottom surface 42a of the lower case 42 so that the washing water in the lower case 42 mixed with the detergent can be supplied to the water tank 11. At this time, the outlet 48 is in communication with the connecting pipe (26). The bottom surface 42a of the lower case 42 is preferably formed to be inclined downward toward the outlet 48 so that washing water therein can be guided toward the outlet 48. Meanwhile, both side surfaces of the lower case 42 are provided with guide rails 49 for guiding the movement of the detergent case 50.

Detergent case 50 is provided with an open top structure, there is formed a detergent input space (51, 52) partitioned into a plurality of spaces so that the user can enter the detergent by type. In this case, the detergent input spaces 51 and 52 are mainly spaces for injecting powder detergent, and are configured to correspond to the water supply channels 45 and 46 provided inside the upper case 43, respectively. Detergent input space (51, 52) is in communication with the water supply channels (45, 46) through the through hole (47a) formed in the top plate 47, whereby the washing water introduced into the water supply channels (45, 46) detergent input The upper part of the spaces 51 and 52 is distributed and supplied.

      In addition, the detergent case 50 is provided with a liquid detergent container 60 which is installed to enable the seesaw movement about the pivot shaft 61. Liquid detergent container 60 is for inputting a liquid detergent, such as a rinsing agent or bleach. At this time, the housing 40 has a water supply port 70 in communication with the water supply pipe 25 so that the wash water can be supplied toward one end 62 of the liquid detergent container 60. Then, when the wash water is supplied to the inside of the housing 40 through the water inlet 70, one end 62 of the liquid detergent container 60 is inclined by the water pressure or weight, and the liquid detergent contained in the liquid detergent container 60 is inclined. It is supplied toward the water tank 11. When the liquid detergent is supplied in this manner, after the supply operation of the liquid detergent is completed, water or the liquid detergent is not left in the liquid detergent container 60. 3 and 4 illustrate a case in which the water supply port 70 is formed on the top plate 47 at a position corresponding to the one end 62 of the liquid detergent container 60, but one end of the liquid detergent container 60 in the water supply process. If the structure can exert a force on the part 62, the position of the water supply port 70 can be changed as much as possible.

      The detergent case 50 has a support plate 53 for supporting the liquid detergent container 60, and the support plate 53 has a coupling hole to which the pivot shaft 61 is coupled so that the liquid detergent container 60 can perform a seesaw motion. 54 is provided. The back of the support plate 53 is open, so that the liquid detergent container 60 can be tilted downward sufficiently when the liquid detergent container 60 is rotated by the wash water so that the liquid detergent can flow out.

      The bottom surface 63 of the liquid detergent container 60 has an inclined portion 63a which inclines upward toward the one end 62 side of the liquid detergent container, that is, rearward from the rotation shaft 61. By the inclined portion 63a, the inner space of the liquid detergent container 60 becomes narrower toward the rear. Then, when the liquid detergent is filled in the liquid detergent container 60, the inclined portion 63a is formed in a small amount. Since only the liquid detergent is filled, the one end 62 of the liquid detergent container 60 is not inclined downward by the weight of the liquid detergent.

      On the other hand, one end 62 of the liquid detergent container 60 is preferably provided with a receiving groove 64 formed to store a certain amount of water in the wash water supplied toward the one end 62 of the liquid detergent container 60. The reason why such a receiving groove 64 is formed is as follows. When strong water pressure is supplied through the water inlet 70, the liquid detergent container 60 is inclined by the water pressure. However, when water is weakly supplied through the water inlet 70 for some reason, the liquid detergent container 60 is not inclined by the water pressure of the water. Therefore, at this time, the liquid detergent container 60 is inclined by its weight while the receiving groove 64 is filled with water.

      In addition, the detergent supply apparatus in the present invention is provided with a return means 80 for returning the liquid detergent container 60 inclined by the wash water supplied through the water supply port 70 to the horizontal state again.

      As shown in FIG. 4, the return means 80 includes a locking protrusion 81 protruding downward from one end 62 of the liquid detergent container 60, and the liquid detergent container 60 may be withdrawn together with the detergent case 50. It may be configured as a guide protrusion 82 disposed in the lower portion of the liquid detergent container 60 so as to interfere with the locking projection (81). At this time, the guide protrusion is preferably installed on the bottom surface 42a of the lower case 42. The guide protrusion 82 pushes the catching protrusion 81 upward when the liquid detergent container 60 is drawn out, so that the liquid detergent container 60 is returned to the horizontal state. For this operation, the engaging projection 81 is formed on the side that interferes with the guide projection 82, and has an inclined portion 81a inclined downward toward the rear. On the other hand, the guide protrusion 82 is preferably extended to a predetermined length toward the opening portion 41 side of the housing 40. This allows the guide protrusion 82 to support one end 62 of the liquid detergent container 60 in the state where the liquid detergent container 60 is drawn out, so that when the user inputs the liquid detergent into the liquid detergent container 60, the liquid detergent container 60 This is to prevent the liquid detergent from spilling while the 60 is inclined.

      5 is a cross-sectional view for explaining the operation of the liquid detergent container in the washing machine according to the present invention. Hereinafter, the operation of the washing machine according to the gist of the present invention will be described with reference to FIG. 5.

      Before starting the washing, the user draws out the detergent case 50 from the housing 40 and inputs various detergents required for washing. Liquid detergent such as a rinsing agent or a bleach is put into the liquid detergent container 60. Even if the user accidentally injects the liquid detergent into the rear side of the rotation shaft 61 when the liquid detergent is added, the liquid detergent container 60 is supported by the guide protrusion 82, so that the detergent is poured out of the liquid detergent container 60. Not generated (see FIG. 5A). When the input of the detergent is completed, the user pushes the detergent case 50 into the housing 40 to mount the detergent case 50 in the housing 40 and starts washing. Then, the washing water is supplied to the detergent supply device 30 through the water supply pipes 23, 24, and 25, and the washing water is supplied to the inside of the water tank 11 together with the detergent, and washing is performed. In particular, when the liquid detergent is introduced, such as a rinsing stroke, the washing water is supplied into the housing 40 through the water supply pipe 25 and the water supply port 70 (see FIG. 5B). Then, one end 62 of the liquid detergent container 60 is tilted downward while the liquid detergent container 60 is rotated by the hydraulic pressure or the load. Accordingly, the liquid detergent is poured into the lower case 42 and supplied to the water tank 11 through the connecting pipe 26 together with the wash water (see FIG. 5C). When the user pulls out the detergent case 50 for the next washing, the liquid detergent container 60 moves forward, and the locking protrusion 81 moves upwardly by interfering with the guide protrusion 82 (see FIG. 5D). Then, the liquid detergent container 60 is returned to the horizontal state again as shown in Figure 5A.

      As described above, the present invention has the effect of leaving no liquid detergent or wash water in the liquid detergent container after the supply of the liquid detergent. Therefore, it is possible to solve the complaints of consumers due to the detergent or water remaining in the liquid detergent container, thereby improving the reliability of the product.

Claims (14)

In the washing machine provided with a detergent supply device for supplying detergent into the tank, The detergent supply device is a seesaw movement by the hydraulic pressure or load of the housing formed with an opening on one side, a detergent case installed to be retractable through the opening, and the wash water installed in the detergent case and supplied into the detergent case. Washing machine comprising a; liquid detergent container having a rotating shaft so as to.       The method of claim 1,       The detergent supply apparatus further comprises a water supply port for supplying washing water toward one end of the liquid detergent container. The method of claim 1, And one end of the liquid detergent container is inclined downward when the wash water is supplied into the housing, and the liquid detergent contained in the liquid detergent container is supplied toward the tank. The method of claim 1, The bottom surface of the liquid detergent container has a washing machine characterized in that it comprises a slope that is inclined upward toward one end of the liquid detergent container.       The method of claim 1,       And the housing has a guide protrusion located at the bottom of the liquid detergent container so as to rotate one end of the liquid detergent container upward when the user draws out the detergent case.       The method of claim 5,       And the guide protrusion extends a predetermined length toward the opening of the housing to support the liquid detergent container when the user draws out the detergent case and injects the liquid detergent into the liquid detergent container.       The method of claim 5,       The liquid detergent container is provided with a washing protrusion protruding downward from the one end and interfering with the guide protrusion when the detergent case is withdrawn.       The method of claim 7, wherein       The locking projection is formed on the side that interferes with the guide projection, washing machine characterized in that it has a slope inclined downward toward the rear. The method of claim 2, The housing includes a top plate positioned above the liquid detergent container when the detergent case enters the inside of the housing, and the water supply port is formed on the top plate at a position corresponding to the position of one end of the liquid detergent container. Washing machine characterized in that.       The method of claim 1,       Washing machine, characterized in that the receiving groove is formed at one end of the liquid detergent container to accommodate a certain amount of water in the wash water supplied toward the liquid detergent container. A washing machine having a detergent supply device for supplying detergent into a water tank, wherein the detergent supply device A housing having an opening formed at one side; and Detergent case is installed to be retractable through the opening; And A liquid detergent container installed on the detergent case to enable the seesaw movement around the pivot shaft, and to be inclined to one side by water pressure or a load of the washing water supplied when water is supplied toward one end thereof; and Return means for returning the liquid detergent container inclined by the wash water back to a horizontal state; Washing machine characterized in that it comprises.       The method of claim 11,       The detergent supply apparatus further comprises a water supply port for supplying washing water toward one end of the liquid detergent container.       The method according to claim 11,       The return means includes a locking protrusion protruding downward from one end of the liquid detergent container, and a guide protrusion positioned at the lower portion of the liquid detergent container so as to interfere with the locking protrusion when the detergent case is pulled out. washer.       The method of claim 13,       The locking projection is formed on the side that interferes with the guide projection, washing machine characterized in that it has a slope inclined downward toward the rear.

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