JPH02128794A - washing machine - Google Patents

Abstract

PURPOSE:To provide a washing machine having an excellent rinsing effect and a simple and economical construction by providing an inversed U-shaped overflow water hose with an upward opened tubular section at the uppermost point so that the height of the uppermost point can be vertically operated by an overflow water hose operating knob. CONSTITUTION:When water, detergent liquid and clothes are stirred by the rotation of an agitator 28 and rinsed by overflow water in a water tub 27, water supplied from a water supply port 42 is poured from a water inlet 43. As the water level in the water tub 27 is elevated, the water level in an overflow hose 37 is also elevated. When the water level is elevated to the uppermost point of the inversed U-shaped portion, water is exhausted to the outside of the machine through an exhaust hose 35. Since the water level in the overflow hose 37 is the same as the one in the water tub 27, the overflow height of the water tub 27 can be adjusted by adjusting vertically the height of the inversed U-shaped uppermost part of the overflow hose 37 with an overflow hose operating knob 38 and rod 39 provided in an operating box. Then, air in the overflow hose 37 can be extracted through an upward opened tubular section 37a provided on the uppermost point of the overflow hose 37 to prevent drain caused by a siphon effect.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a washing machine equipped with a flooding device.

2. Description of the Related Art As shown in FIG. 6, a conventional washing machine of this type has a structure in which a water tank 2 is provided inside an exterior body 1 that forms the outside of the washing machine, and a stirring blade is provided at the bottom of the water tank 2. 3. Rotation of motor 4 is controlled by small pulley 5. The V-belt is rotated by transmission through a 6° large pulley 7 and a speed reducer 8, and the water and clothes in the water tank 2 are agitated to wash the clothes.

On the other hand, when rinsing with a washing machine, water is supplied through the water supply hose 11 inserted into the water supply port 1o protruding from the operation box 9 provided above the rear surface of the water tank 2, and Inject water into the tank 2 from the water inlet 12,
When the water level rises above a certain level, the overflow pipe 14 is connected to the overflow hose 13 provided in the water W12. The water is drained out of the machine through the drain hose 16.

In FIG. 6, 16 is a perforated overflow filter that covers the overflow hose 16, 17 is a drain pipe provided at the bottom of the water tank 2, 1B is a drain valve, and 19 is a rod 20 connected to the overflow hose 13. , an overflow hose operating knob that changes the height of the overflow hose 13 up and down, 21
is the underframe that forms the lower part of the washing machine.

Problems to be Solved by the Invention However, in the conventional configuration, since both the water inlet 12 and the overflow hose 13 are present above the water tank 2, the water inlet 1
Before the rinsing water injected from 2 is sufficiently stirred and has the effect of lowering the concentration of detergent in the washing liquid in the water tank 2,
Since the water was drained outside the machine from the overflow hose 13, a sufficient rinsing effect could not be achieved.

In order to solve this problem, conventionally, as shown in FIG. 6, a water level switch 23 is provided to detect the water level in the tank 22, and the water level in the tank 22 is raised to a certain level by pouring water from the water inlet 24. When the water level switch detects that the water level has reached a certain level, the automatic drain valve 26 automatically opens, and when the water level in the tank 22 falls below a certain level, the automatic drain valve 26 closes to maintain the water level in the tank 22 at a constant level. Some washing machines have a feedback circuit that keeps the water level at 23. automatic drain valve 26
and a feedback circuit are required, resulting in an expensive device.

In view of the above problems, the present invention has an excellent rinsing effect,
The purpose of the present invention is to provide a washing machine that is inexpensive and has a simple structure.

Means for Solving the Problems In order to achieve the above object, the first technical means of the present invention is to provide an exterior body of a washing machine, a water tank held by the exterior body, and an agitation blade provided at the bottom of the water tank. , a drain pipe attached to the lowest part of the aquarium, a drain valve connected to the drain pipe, a drain hose that projects from the drain valve to the outside of the exterior body, and an overflow hose that connects the bottom of the aquarium or the drain pipe and the drain hose. and,
The overflow hose is provided with an overflow hose operation knob, the overflow hose is formed in an inverted υ shape, and has a cylindrical portion opening upward at the highest point, so that the height of the highest point can be adjusted in the vertical direction by the overflow hose operation knob. This is what I did.

The second technical means is to have an overflow hose protruding from the bottom of the aquarium or from the drain pipe, and have an inverted J shape with an opening at one end, and one end at the opening of the overflow hose.

is installed so that it can slide vertically from the outside, and has an overflow pipe that connects one end to the drainage hose, and the height of the opening of the overflow hose can be adjusted up and down using the overflow hose operating knob. .

Function: With this configuration, when the water level in the aquarium rises above a certain level due to water injection, the overflow outlet can be provided at the bottom of the aquarium, and the height of the overflow water level can be adjusted arbitrarily using the overflow hose operating knob. Can be adjusted.

EXAMPLE Hereinafter, an example of the present invention will be explained with reference to FIGS. 1 to 4.

FIG. 1 shows a washing machine according to a first embodiment of the present invention.

As shown in the figure, a water tank 2a is provided inside the exterior body 26 of the washing machine, a stirring blade 28 for stirring the clothes is provided at the bottom of the water tank 27, and the rotation of the motor 29 is controlled by a small pulley 30.
．． V-belt 31. The agitation X28 is transmitted to the reducer 33 via the large pulley 32, and by connecting the agitating blade 28 to the output shaft of the reducer 33, the agitation X28 is rotated to perform washing and rinsing operations.

On the other hand, a drain valve 34. A drain pipe 36 connected to a drain hose 36 and an overflow hose 37 are connected.

The overflow hose 37 is extendable and has an inverted U shape, and the uppermost point of the overflow hose 37 is provided with an upwardly opening cylindrical portion 37&, and the uppermost point is connected to the overflow hose operating knob 3.
It can be operated in the vertical direction by a rod 39 connected to the water tank 8, and the other end not connected to the water tank 27 is connected to a drain hose 36.

In addition, an operation box 40 is provided on the upper rear surface of the water Pa2a.
In addition, the operation box 40 has a knob 41. An overflow hose operating knob 3B is provided, and a water supply port 42 for supplying water is provided, and the water supplied from the water supply port 42 is injected into the water tank from a water supply port 43.

In FIG. 1, 44 is an underframe, 46 is a dehydration lid, 46 is a dehydration tray, and 47 is a dehydration tray with a dehydration basket (not shown) arranged inside.

The operation of the present invention in the above configuration will be explained with reference to FIG.

Stir the water or detergent solution and clothes in the water tank 27.
is stirred by the rotation of the When performing overflow rinsing, the water supplied from the water supply port 42 provided in the operation box 40 is injected from the water supply port 43.

At this time, as the water level in the water tank 27 rises, the water level in the overflow hose 37 also rises, and when the water level rises to the highest point of the inverted U shape, the water is discharged to the outside of the machine through the drain hose 36. That is, since the water level in the water tank 27 and the water level in the overflow hose 37 are the same, the reverse U of the overflow hose 37
By adjusting the height of the top of the letter in the vertical direction using the overflow hose operation knob 38 and rod 39 provided on the operation box 40, the overflow height of the water tank 27 can be adjusted at the same time.

At this time, air can be vented from the inside of the overflow hose 37 using the upper-opening cylindrical portion 37a provided at the highest point of the overflow hose 37, so that drainage due to the siphon phenomenon can be prevented.

On the other hand, the water injected from the upper water inlet 43 is sufficiently stirred in the water tank 27 and has the effect of lowering the detergent concentration, and the overflow port in the water tank 27 is located below the stirring blade 28. Since a detergent solution with a high detergent concentration can be discharged, efficient rinsing can be performed. In addition, as shown by the arrow, around the stirring R28,
Enter through the drainage hole 28& in the center of the stirring blade 28, and then drain the stirring blade 2.
Since a flow of water protruding from the outer periphery of the stirring blade 8 is generated by the rotation of the stirring blade 28, pressure is applied to the overflow hose 37.
Water can be flooded more efficiently. Furthermore, since there is no need to provide an overflow filter on the outer periphery of the water tank 27 as shown in the conventional example, unevenness on the outer periphery of the water tank 27 can be eliminated, and the movement of clothes caused by the rotation of the stirring blades 28 becomes smoother, making it even more efficient. A good rinse can be performed.

In this embodiment, the overflow hose 37 was provided to connect the bottom of the water tank 27 and the drain hose 36, but as shown in Figure @3, the overflow hose 37 was installed to connect the drain pipe 36 and the drain hose 36. Needless to say, the same effect can be obtained even if such a configuration is provided.

FIG. 4 is a cross-sectional view of a washing machine showing another embodiment of the present invention.

As shown in the figure, the water or detergent liquid and clothes in the water tank 27 are stirred by the rotation of the stirring blades 28. When performing overflow rinsing, the water supply port 43 provided in the operation box 41
Water supplied from the water inlet 44 is injected from the water inlet 44. At this time, as the upper level in the water tank 27 rises, the overflow hose 37
1) If the water level inside rises to the highest point of the inverted J shape, the water will flow to the opening 370 of the overflow hose 37b.
The water is discharged from the machine through the overflow pipe 39 and drained from the drain hose 36. Then, when the water level in the water tank 27 reaches the same height as the opening 370 at the tip of the overflow hose 371), overflowing stops. Namely.

Since the siphon phenomenon using the overflow hose 37b is utilized, the start water level of overflow is the highest point of the inverted J shape of the overflow hose 37b, and the end water level is the height of the opening 370 at the tip. Therefore, the height of the top of the inverted J shape of the overflow hose 371) is set to the overflow hose operating knob 38 provided in the operation box 41.
．． By adjusting the rod 40 in the vertical direction, the overflowing height of the water tank 27 can be adjusted at the same time.

With the above configuration, the above embodiment can also obtain the same effects as the first embodiment. Also, connect the overflow hose 371) to the drain pipe 36
It goes without saying that the same effect can be obtained by connecting with.

Effects of the Invention As is clear from the above embodiments, according to the present invention, there is provided a water tank, a drain valve, a drain hose, an inverted U-shaped overflow hose that connects the bottom of the water tank and the drain hose, and an air vent at the top of the overflow hose. By providing a cylindrical part, the water tank, the drain valve, the drain hose, the inverted J-shaped overflow hose that protrudes upward from the bottom of the tank, and one end of the overflow hose that is installed around the outside from the outside, and one end of which is connected to the drain hose. By providing an overflow pipe connected to the water tank, a bypass waterway can be provided, and therefore, an overflow port can be provided at the bottom of the water tank to perform more effective rinsing.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view of a washing machine showing a first embodiment of the present invention, Fig. 2 is a sectional view thereof, and Figs. 3 and 4 are cross sections showing other embodiments of the present invention. FIG. 6 is a cross-sectional view of a conventional washing machine, and FIG. 6 is a cross-sectional view showing another example of the conventional washing machine. 26...Exterior body, 27...Aquarium, 28
... Stirring blade, 34 ... Drain valve, 35.
...Drain hose, 36...Drain pipe, 37
・・・・・・Overflow hose, 371L・・・Cylinder part,
37b... Overflow hose, 370... Opening, 38... Overflow hose operation knob, 39.
...Overflow pipe.

Claims (2)

[Claims] (1) A stirring blade provided at the bottom of the water tank, a drain pipe attached to the lowest part of the water tank, and a drain valve connected to the drain pipe,
A drain hose protrudes from the drain valve to the outside of the exterior body, an overflow hose that connects the drain hose to the bottom of the aquarium or the drain pipe, and an overflow hose operating knob, the overflow hose being formed in an inverted U shape, and The washing machine is provided with a cylindrical portion opening upwardly at the highest point, and the height of the highest point is such that it can be operated in the vertical direction by the overflow hose operating knob. (2) A stirring blade provided at the bottom of the water tank, a drain pipe attached to the lowest part of the water tank, and a drain valve connected to the drain pipe,
A drain hose that protrudes from the drain valve to the outside of the exterior body, and an overflow hose that has one end connected to the bottom of the aquarium or the drain pipe.
The overflow pipe has one end connected to the drainage hose and is in an upright state, and an overflow hose operating knob, the overflow hose is formed in an inverted J shape, and the other end is inserted into the upper opening of the overflow pipe. The other end of the overflow hose can be moved up and down within the overflow pipe, and the height of the highest point of the overflow hose can be moved up and down by the overflow hose operating knob.