KR0126122Y1 - A pressure removal and natural drain preventing device for a drum washing machine - Google Patents

Abstract

The present invention relates to a pressure washer and a natural drainage prevention device for a drum washing machine, and more particularly, to increase the pressure in the tub by the washing product generated during the washing process and the rise in the tub by steam generated during the washing process. It can be removed, and the pressure relief and natural drainage prevention autonomy that can prevent the natural drainage according to the installation structure of the drain hose installed higher than the top of the tub.

The present invention, the drum (3) rotatably installed inside the tub (2), the plurality of water supply pipes (31) (33) (34) connected to the water supply device (20), and the internal pressure of the tub (2) Detergent container 30 having an air pipe 35 for removal, a water supply port 37 for supplying wash water to the tub 2, and a vent hole 36 communicating with the outside, one end of which is the detergent container ( It is connected to the water supply port 37 of the 30 and the other end thereof is connected to the tub (2) connecting pipe for introducing the washing water mixed with the detergent through the detergent container (30) into the inside of the tub (2) ), A drain pump 15 installed at the bottom of the main body 1 to discharge the washing water in the tub 2 to the outside, and a drain hose having an upper end disposed higher than an upper end of the tub 2. 16, a drum washing machine having a hole (53) formed in a tub connecting portion (51) of the connecting pipe (45) coupled with the tub (2), and one end thereof connected to the hole (53). And the other end of the pressure relief pipe 60 connected to the air pipe 35 of the detergent container 30, and a drain hose connection pipe branched from the pressure relief pipe 60 and connected to an upper end of the drain hose 16. It is provided with a pressure relief and natural drainage prevention device 50 composed of (70).

Description

Pressure relief and natural drainage prevention device for drum washing machine

1 is a front perspective view of a general drum washing machine.

FIG. 2 is a rear perspective view of FIG. 1. FIG.

3 is an exploded perspective view of a detergent container.

4 is a front view of the pressure relief and natural drainage preventing device according to the present invention.

5 is a side view of FIG.

Figure 6 is a view showing a state in which the pressure relief and natural drainage preventing device of the present invention is disposed in the drum washing machine body.

* Explanation of symbols for main parts of the drawings

1: body 2: tub

3: drum 15: drainage pump

16: drain hose 30: detergent container

45: connector 50: pressure relief and natural drainage prevention device

53 hole 60: pressure release plate

70: drain hose connector

The present invention relates to a pressure washer and a natural drainage prevention device for a drum washing machine, and more particularly, to increase the pressure in the tub by the washing product generated during the washing process and the rise in the tub by steam generated during the washing process. It can be removed, and relates to a pressure removal and natural drainage prevention device that can prevent the natural drainage according to the installation structure of the drain hose installed higher than the top of the tub.

Drum washing machine is a washing machine that washes laundry by dropping the laundry from the top to the bottom of the drum by using a drop generated by the rotation of the drum.It is less damaged by the twist of the laundry than the pulsator type washing machine. There are possible advantages.

1 and 2 is a view showing the overall structure of the drum washing machine.

A cylindrical tub 2 having a front opening is suspended from the upper and lower ends of the main body 1 by a plurality of shock absorbers 9 and shock absorbers 10, respectively (see FIG. 2). 2) A drum 3 for receiving laundry therein is rotatably arranged (see FIG. 1).

As shown in FIG. 1, a door 4 is installed at an open front surface of the tub 2, and laundry is introduced into and out of the door 4. The water supply apparatus 20 for selectively supplying cold water and hot water into the tub 2 is installed at the rear upper part of the main body 1. In addition, the front of the main body 1 is provided with a detergent container 30 for mixing the washing water supplied from the water supply device 20 with the detergent to flow into the tub (2). To this end, the cold water pipe 31 and the hot water pipe 32 connected to the water supply device 20 are installed at the rear of the detergent container 30, one end of which is connected to the detergent container 30, and the other end thereof is connected to the tub 1. A substantially U-shaped connecting pipe 45 is provided to supply washing water containing detergent to the tub 1 via the detergent container 30 (see FIG. 3).

As shown in FIG. 2, a drive motor 5 and a drain pump 15 are installed below the tub 2. The rotational force of the drive motor (T) is transmitted to the pulley (8) installed at the rear of the tub (2) by the belt (7). Therefore, the drum 3 rotatably connected to the belt 7 is rotated forward and reverse by the driving motor 5 driven by the control of the operation unit 6 installed at the front of the main body 1.

On the other hand, the inlet of the volleyball pump 15 is connected to the drain pipe 18 is connected to the tub 2 and the outlet is connected to the drain hose 16, to discharge the water in the tub (2) to the outside. Here, the upper end of the drain hose 16 is disposed higher than the upper end of the tub 2 so that the water in the tub 2 is not naturally drained to the outside during the washing process. In addition, as shown in FIG. 1, a filter 17 is provided in the drain pipe 18 to prevent the drain pump 15 from being clogged by the waste of laundry.

The centrifugal fan 12 and the drying heater 13 are disposed on the body of the tub 2 to blow hot air into the drum 3 to dry the laundry, and to condense and drain the wet steam in the drum 3. The condensing hose 14 is connected.

In addition, in order to prevent the internal pressure of the tub 2 from rising due to the washing product and the steam generated during washing, particularly, the washing process, a pressure removing hole 25 is formed on the upper surface of the tub 2. . This pressure relief hole 25 is connected to the air pipe 35 of the detergent container 30 mentioned later by the connection hose 32. As shown in FIG.

3 is an exploded perspective view showing the detergent container 30 and the connection pipe 45.

The detergent container 30 is composed of a housing 38, a drawer 39 retractably fitted into the housing 38, and a cover 40 fixed to an upper portion of the housing 38.

The rear portion of the cover 40 is a plurality of water pipes, that is, the cold water pipe 31, the hot water pipe 33, and the rinse (RINSE) pipes (34) connected to the water supply device 20, the connection hose 32 By the air pipe 25 and the like connected to the pressure relief hole 25 is disposed.

In the drawer 39, detergent and rinsing agent are placed separated from each other by a separating wall so that the water supplied from the water supply device 20 is selectively drawn through the pipes 31, 33 and 34 above. It is mixed with detergent or rinsing agent in.

In addition, the rear wall of the housing 39 is provided with a vent hole 36 communicating with the outside and a water supply port 37 connected with the connecting pipe 45. Therefore, as described above, one end of the connection pipe 45 is connected to the water inlet 37, and the other end of the connection pipe 45 is coupled to the upper surface of the tub 2, so that detergent or rinse in the detergent container 30. The wash water mixed with the agent is introduced into the tub 2 through the connection pipe 45.

Looking at the operation of the drum washing machine configured as described above, first the laundry is mixed with detergent in the state in which the laundry is put in the drum (3) flows into the tub (2) to the height controlled by the level control device (not shown) As the driving motor 5 is operated, the washing stroke proceeds by flowing into the tub 2 to the height at which the washing stroke is advanced, and then driving the driving motor 5. The rotational force of the drive motor 5 is transmitted to the drum 3 disposed in the tub 2 by the belt 7 and the pulley 8 to rotate the drum 3 forward and backward at a constant speed and at regular intervals. .

Accordingly, the laundry in the drum (3) is raised from the bottom of the tub (2) to the top together with the wash water, and then freely falls back to the bottom, and washing is performed in the same manner as if the laundry is pounded with a laundry bat. Will be done. Here, the user may select the temperature of the wash water between 40 ° C, 80 ° C, and 95 ° C according to the type of laundry. During this washing cycle, watering and washing, and washing and draining can be done simultaneously according to a pre-programmed washing course.

When the washing administration is completed, the drain pump 15 is operated so that the wash water in the tub 2 is discharged to the outside through the drain pipe 18 and the drain hose 16. Thereafter, the washing water mixed with the rinsing agent in the detergent container 30 is supplied to the tub 2 through the connecting pipe 45, so that the rinsing stroke is performed. In this rinsing stroke, the drum 3 is rotated forward and backward by the drive motor 5 at a constant speed and interval in the same manner as the washing stroke. In addition, during this rinsing stroke, water supply and rinsing, and rinsing and draining may be performed simultaneously according to a pre-programmed rinsing course.

When the rinsing stroke is completed, the drain pump 15 is operated again, and the washing water in the tub 2 is drained, and then the centrifugal fan 12 and the drying heater 13 are operated to perform the drying stroke. During the drying administration, cold water is supplied to a part of the outer wall of the tub 2 through the condensing hose 14, and is heat exchanged with the laundry to condense hot air containing a large amount of water to continuously dry the laundry. The condensed water generated by the above action is discharged to the outside by an intermittent drain pump 15.

By washing the drum washing machine described above, the laundry is washed cleanly without getting tangled or twisted together.

On the other hand, the drum washing machine is the pressure in the tub (2) is increased due to the volume expansion caused by the washing products generated during the washing administration, or by a large amount of high temperature steam generated during the washing of the boil, the tub (2) The pressure relief hole 25 formed in the upper part of the communication tube communicates with the outside through the connection hose 32, the air pipe 35 of the detergent container 30, and the vent hole 36 to discharge the increased pressure to the outside. do.

However, the pressure removing hole 25 has a disadvantage in that the internal pressure of the tub 2 cannot be removed quickly and sufficiently because the hole is small in size. In particular, because of its small size, the hole 25 is easily clogged by undissolved powder detergent and by the residue of the laundry so that the internal pressure of the tub 2 becomes more difficult to remove.

Accordingly, the detergent is discharged to the outside due to the internal pressure of the tub (2) during the administration of the detergent, the water supplied to the detergent container (30) through the cold water pipe (31) or hot water pipe (33) when re-supplied Due to the internal pressure of the tub (2) it will not flow into the tub (2) through the connection pipe 45 will overflow into the gap between the vent hole 36 and the drawer (39) of the detergent container (30). In addition, the water level of the tub 2 does not rise constantly, so that the water level switch is operated sensitively, the water supply is not made accurately. Therefore, a case where the original function of the drum washing machine is not performed properly occurs.

In order to remove the internal pressure of the tub 2 more effectively, the pressure elimination hole 25 should be made larger, which complicates the top structure of the tub 2 and the pressure elimination hole 25 The high temperature air is easily escaped, thereby reducing the drying efficiency.

In addition, as shown in FIG. 2 at the time of installation of the drum washing machine, the drain hose 16 installed upright from the bottom of the main body 1 to a height higher than the upper end of the tub 2 is drained in the process of installing the drainage hose. When the jaw is disposed so that the remaining water is accumulated in the middle of the hose 16, the remaining water remains on the jaw even after the washing is completed, so that the inside of the drain hose 16 is in a vacuum state. Therefore, when the drainage and water supply proceed simultaneously, even if the drainage pump 15 stops operating, the water supplied into the tub 2 continues to naturally drain water in the tub 2 due to the syphony phenomenon. Is there.

The present invention is to solve the above problems,

The purpose of the present invention is to effectively remove the pressure generated inside the tub due to the washing product and the hot steam generated during the washing administration, and to remove the pressure of the washing machine and the water to prevent the overflow of the drum washing machine and the natural It is to provide a drainage prevention device.

Another object of the present invention is to prevent the natural drainage of the washing hose supplied to the tub during the washing operation by preventing the natural drainage even if the interior of the drain hose due to the wrong installation pressure relief and natural drainage prevention device To provide.

In order to realize the above object, the present invention provides a main body of a drum washing machine, a tub installed inside the main body, a drum rotatably installed in the tub, a drive motor installed on the bottom of the main body to rotate the drum, A detergent container having a plurality of water supply pipes connected to a water supply device, an air pipe for removing internal pressure of the tub, a water supply port for supplying wash water to the tub, and a vent hole communicating with the outside, one end of the detergent container Is connected to the water inlet of the other end is connected to the tub through the detergent tubing to introduce the wash water mixed with the detergent into the tub, the bottom of the main body to discharge the wash water in the tub to the outside In a drum washing machine having a drain pump installed in the upper portion and a drain hose whose upper end is higher than the upper end of the tub, A hole formed in the tub connection portion of the connection pipe coupled to the tub, one end of which is connected to the hole and the other end of which is connected to the air pipe of the detergent container, and branched from the pressure relief pipe of the drain hose. It is equipped with a pressure relief and natural drainage prevention device consisting of a drain hose connection pipe connected to the top.

Hereinafter, with reference to the accompanying drawings for a preferred embodiment of the present invention will be described in detail.

The structure and operation of the drum washing machine are the same as the above-described prior art, and thus, further description thereof will be omitted.

As shown in Figure 4, the pressure relief and natural drainage preventing device 50 according to the present invention is installed in the connecting pipe 45 for connecting the detergent container 30 and the tub (2). The connecting pipe 45 is substantially U-shaped, at one end thereof is formed with a tub connecting portion 51 to be coupled to the tub 2, the other end of the detergent container connecting portion is coupled to the water supply port 37 of the detergent container 30 ( 52) is formed.

The pressure relief and natural drainage preventing device 50 is a hole 53 of a relatively small size formed in the tub connection portion 51, the pressure relief tube 60 connected to the hole 53, and the pressure relief tube It is composed of a drain hose connecting pipe (70) branched from (60).

The pressure relief pipe 60 and the drain hose connecting pipe 70 is preferably made of a flexible material such as rubber in order to be easily connected in the body (1).

5 is a side view of the connection pipe 45 to which the pressure relief and natural drainage preventing device 50 of the present invention is attached.

The tub connecting portion 51 of the connecting piece 45 is approximately hemispherical and slightly inclined downward to be attached to the surface of the cylindrical tub 2. The hole 53 for removing the internal pressure of the tub 2 is formed on the upper surface of the tub connecting portion 51.

6 is a view showing a state in which the pressure relief and natural drainage preventing device 50 of the present invention is disposed in the drum washing machine.

Tub connection portion 51 of the connecting pipe 45 is coupled to the upper surface of the tub (2), detergent container connection portion 52 is coupled to the water supply port 37 of the detergent container 30, mixed with the detergent in the detergent container (30) The wash water is supplied to the tub (2) through the connecting pipe (45).

On the other hand, one end of the pressure relief tube 60 is coupled to the hole 53 formed in the tub connecting portion 51 of the connecting pipe 45, the other end is coupled to the air pipe 35 formed in the detergent container (30). .

In addition, the other end of the drain hose connecting pipe 70, one end of which is connected to the pressure relief pipe 60 is connected to the upper end of the drain hose (16).

The pressure relief and high pressure caused by the steam removal product generated in the tub 2 closed during washing by the pressure relief and natural drainage preventing device 50 of the present invention configured as described above, the pressure is immediately removed After being sent to the detergent container 30 through the air pipe 35 of the tube 60 and the detergent container 30, it is to be exited to the outside through the vent hole 36 of the detergent container 30 again.

In addition, since the interior of the drain hose 16 communicates with the atmosphere through the detergent container 30 and the connecting pipe 45 and the drain hose connecting pipe 70 in communication with the outside air, it is always maintained at atmospheric pressure.

As described above, the pressure elimination hole 53 is not formed in a small size on the upper surface of the tub 2 as in the conventional pressure elimination hole 25 (see FIG. 1), but has a relatively large cross-sectional area. Since it is formed in the connection pipe 45 for the tub 2 to easily remove the internal pressure, there is no fear that the hole 53 is blocked by the lump of detergent or laundry debris. Therefore, it is possible to effectively eliminate the pressure expansion in the tub (2) due to the expansion of the volume of the scrubbing products and the high temperature steam during washing, so that laundry and scrubbing products do not overflow to the outside through the detergent container 30 during the washing administration. do.

In addition, since the outside air can always flow into the drain hose 16 from the drain hose connecting pipe 70, the interior of the drain hose 16 is prevented from becoming a vacuum. Therefore, the water in the tub 2 can be prevented from natural drainage due to the wrong installation structure of the drain hose (16).

Accordingly, there is an effect that the overall washing process of the drum washing machine proceeds smoothly. In particular, since the water supply proceeds normally, the water level switch during the washing operation is sensitively improved the conventional problem of water supply.

Claims (1)

The main body 1 of the drum washing machine, the tub (2) installed inside the main body (1), the drum (3) rotatably installed in the tub (2), the main body for rotating the drum (3) A plurality of water supply pipes 31, 33, 34 connected to the drive motor 5 and the water supply device 20 installed at the bottom of the air supply tube 2, and an air pipe 35 for removing the internal pressure of the tub 92. And, a water supply port 37 for supplying the wash water to the tub (2), and a detergent container 30 having a vent hole 36 in communication with the outside, one end of the water supply port of the detergent container (30) 37 is connected to the tub (2) and the other end is connected to the tub (2) through the detergent container (30), the connecting pipe 45 for introducing the washing water mixed with the detergent into the tub (2), the tub (2) In order to discharge the wash water in the outside to the drain pump 15 installed on the bottom of the main body 1, and the upper end of the drain hose 16 is disposed higher than the upper end of the tub (2) In one drum washing machine, a hole (53) formed in the tub connecting portion (51) of the connecting pipe (45) coupled with the tub (2), one end of which is connected to the hole (53), and the other end of the detergent container Composed of a pressure relief tube 60 connected to the air pipe 35 of the 30, and a drain hose connecting pipe 70 branched from the pressure relief tube 60 and connected to the upper end of the drain hose 16 By effectively removing the internal pressure of the tub (2) by washing and removing the hot tub at the same time, while maintaining the interior of the drain hose 16 at atmospheric pressure at all times through the drain hose (16) Pressure relief and natural drainage prevention device for a drum washing machine, characterized in that the natural drainage is prevented.