JPS6033913Y2 - Water storage device for washing machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a water storage device for a washing machine, in which a water storage tank is installed in parallel with the washing machine, and the washing water used once in the washing tank is stored in the water storage tank and used for the next washing.

Recently, in order to save washing water used for washing, it has been considered to store the used washing water in a water tank, and then transfer the washing water from the water tank to the washing tank for reuse during the next wash. .

Therefore, conventionally, a single pump, a suction switching valve that selectively switches the suction side of the pump between the washing tank and the water storage tank, and a discharge valve that selectively switches the discharge side of the pump between the water storage tank and the washing tank have been used. Since the switching valves are connected to each other with a hose, two switching valves and multiple hoses are required, which requires a large number of parts and is very troublesome to assemble. Therefore, the outer casing of the device becomes large, which has the drawback of making it expensive overall.

The present invention was developed in view of the above-mentioned circumstances, and its purpose is to greatly reduce the number of parts and facilitate assembly, and also to manufacture the device in a small size and at a generally low cost. To provide a water storage device for a washing machine that can be manufactured.

An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes an outer box of a washing machine that also serves as a dewatering machine. Inside this, a water receiving tank 3 is suspended via an elastic suspension mechanism 2. Inside the water receiving tank 3, there are many dehydrating holes on the peripheral wall as a washing and dehydrating tank. A rotary tank 4 having a rotary tank 4a is rotatably arranged.

Reference numeral 5 denotes a mechanism section disposed at the outer bottom of the water receiving tank 3, which receives rotational force from a motor (not shown) with a pulley 6 to move the rotating tank 4 and stirring blades 7 arranged at the inner bottom of the rotating tank 4. It selectively transmits information to

8 is a drain valve attached to the drain port 3a of the water receiving tank 3, and a drain hose 9 is connected to this drain valve.

Reference numeral 10 denotes a cover made of plastic, for example, which is attached to the upper surface of the outer box 1. An operation box 11 is bulged in the rear part, and a lid 13 is installed in the laundry opening 12 facing the rotating tub 4. It is movably pivoted.

Reference numeral 14 denotes a water tank that is arranged side by side on the left side plate of the outer box 1 by bolting or the like, and a cover 16 made of, for example, plastic is attached to the upper surface of the outer box 15 that forms the water tank 14.
An operation box 17 is formed in a bulge at the rear of the cover 16 so that the front and rear surfaces of the outer box 15 and the top surface of the cover 16 are connected to the front and rear surfaces of the outer box 1 and the top surface of the cover 10 in a road-like manner. I have to.

Thus, the water storage tank 14 has a bottom wall 18 and a rear wall 1 inside the outer box 15.
9 to form a water storage container inside, and the left and right walls and front wall of the outer box 15 constitute the tank wall of this water storage container.

Reference numeral 20 denotes a pump device located inside the outer box 15 and located at the lower rear portion of the bottom wall 18, and will be described in detail below.

21 is a pump motor; 22 is a substantially short cylindrical casing fixed to one side of the pump motor 21; a cylindrical first communication port 23 and a second communication port 24 are integrally formed on the outer periphery of this casing; It is installed protrudingly.

The first communication port 23 is directly connected to one end of a solenoid valve 25, which is an on-off valve and has a valve body 25b driven by an electromagnetic device (not shown) in a valve case 25a.

26 and 27 are a pump device 20 and a solenoid valve 25
The hose 26 is a hose that constitutes one passageway that communicates the bottoms of the water receiving tank 3 and the water storage tank 14 with each other through the inside.
One end is connected to the other end of the solenoid valve 25 and the other end is connected to a communication port 3b provided at the bottom of the water receiving tank 3, and one end of the hose 27 is connected to the second communication port 24. At the same time, the other end is connected to a communication port 18a provided in the bottom wall 18 of the water storage tank 14.

Now, 28 is a pump body installed inside the casing 22, and this is a base 2 with a flange 29a collinear with the pump motor 21 together with the flange part 22a of the casing 22.
9, and a short cylindrical pump case 30 with a bottom fixed to the base 29, and the pump case 30 has a first communication port 23 and a second communication port 24 facing each other on the outer periphery of the pump case 30. Two circular suction ports 31.32 are provided, and two circular discharge ports 33.34 are provided on the end face of the pump case 30, facing the suction ports 31.32.

Reference numeral 35 denotes an impeller disposed within the pump case 30, which is directly connected to the rotating shaft 21a of the pump motor 21, which passes through the base 29 via a shaft seal 36.

Reference numeral 37 denotes a rotating body in the shape of a short cylinder with a bottom, which is rotatably disposed between the outer circumference of the pump case 30 and the inner circumference of the casing 22, and the shaft portion 37a of this is rotatably disposed between the outer circumference of the pump case 30 and the inner circumference of the casing 22. 22, and a lever 39 is fixed to the tip of the shaft portion 37a.

Two outflow passages 40.41 are cut out at an interval of 180° and are formed in the outer peripheral portion of the rotating body 37 so as to face each other with the shaft portion 37a in between. A water passage 42 is provided at an intermediate position extending from the end surface of the rotating body 37 to a part of the outer circumference.

On the other hand, 43 is an operating body provided in the operating box 17 so as to be rotated by a knob 44, and the tip of this and the lever 3
A rod 45 is used to connect the tip end portion of 9 with a rod 45 .

Next, the operation of this embodiment configured as above will be explained.

After washing with detergent in the rotating tank 4 with the water tank 14 empty, the washing water containing the detergent in the rotating tank 4 is transferred to the water tank 1.
4, by operating the knob 43 in advance, the rotating body 37 is operated in the direction of arrow A via the lever 39, so that the inflow passage 42 faces the first communication port 23, and the outflow passage 4
0 in a state facing the second communication port 24 (see Fig. 4), and when washing with detergent is finished, with the ice drain valve 8 closed, the solenoid valve 25 and pump motor are operated by operating a switch (not shown). 21 respectively.

Then, the solenoid valve 25 is opened and the impeller 35 of the pump device 20 is driven to rotate, and the detergent water in the water receiving tank 3 is discharged from the first communication port 23 via the hose 26 and the solenoid valve 25 from the communication port 3b. Flows into the casing 22 and further flows into the inflow path 4
2 and the inlet passage 42 , and are sucked into the pump case 30 through the suction port 31 communicating with the discharge port 33 and the discharge passage 40 communicating with the discharge port 33 under the pump action of the impeller 35 . It is sent into the water storage tank 14 through the second communication port 24 and the hose 27, and in this way, the water storage tank 1
Detergent water is stored in 4.

When all the detergent water in the water tank 3 has been transferred, the power to the solenoid valve 25 and the pump motor 21 is cut off, and the operation of the pump device 20 is stopped. This means that the backflow to is blocked.

Thereafter, the laundry in the rotating tub 4 that has been washed with detergent is subjected to soot washing and dehydration steps in the same manner as in a normal washing machine, and the first washing is completed.

When doing the second wash after this, when you want to use the detergent water stored in the water tank 14, first pull the knob 44.
By operating the lever 39, the rotating body 37 is rotated 900 degrees in the direction of arrow A, which is opposite to the above, so that the inflow passage 42 faces the second communication port 24, and the outflow passage is connected to the first passage 23. 41 face each other (see FIG. 5), and then the pump motor 21 and the solenoid valve 25 are energized by operating a switch (not shown).

Then, the pump device 20 is activated and the solenoid valve 25 is opened, and the detergent water in the water tank 14 flows into the casing 22 from the second communication port 24 via the hose 27, and further flows into the inflow path 42. and an inlet 3 communicating with the inflow path 42
2 into the pump case 30 and receives the pumping action of the impeller 35 to communicate with the discharge port 34 and the discharge port 34, and the first communication port 23;
It is sent to the water receiving tank 3 via the solenoid valve 25 and the hose 26,
In this way, the detergent water in the water storage tank 14 is transferred into the water receiving tank 3 and the rotating tank 4.

After the detergent water in the water storage tank 14 has been transferred into the water receiving tank 3, the power to the solenoid valve 25 and the pump motor 21 is cut off.
Thereafter, detergent washing, rinsing, and dehydration steps are performed in order in the rotating tank 4.

The above-mentioned effect is when the detergent water used for the first detergent washing is used for the second detergent washing.
The washing water used for the final rinse can also be stored in the water tank 14 in a similar manner and used as washing water for the second washing with detergent.

According to the above configuration, one water passage is provided through which the bottoms of the water receiving tank 3 and the water storage tank 14 are communicated with each other through the pump device 20 and the electromagnetic valve 25 by the hoses 26 and 27, and the water flows through this water passage. Since washing water is exchanged between the receiving tank 3 and the water storage tank 14, the number of parts is greatly reduced compared to the conventional structure, and the assembly is simple and the entire device is compact.

In addition, when the detergent washing, rinsing and dehydration steps are performed, the pump device 20 is stopped and the solenoid valve 25 is closed, so that the washing water stored in the water tank 3 during washing with detergent is stored. Washing water stored in the water tank 14 during rinsing and dehydration is reliably prevented from flowing into the tank 14 or flowing back into the water receiving tank 3.

Incidentally, if the rotating body 37 is made to stand still at an intermediate rotating position, the rotating body 37 acts as an on-off valve, and therefore,
Even if the solenoid valve 25 is omitted, backflow of washing water, etc. can be prevented.

As is clear from the embodiments described above, the present invention not only allows for effective use of washing water, but also enables easy assembly with a significant reduction in the number of parts, and also enables the device to be made compact. Therefore, it is possible to provide a water storage device for a washing machine that can be manufactured at low cost overall.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a perspective view, Fig. 2 is a diagram showing the water supply route with the washing machine and water tank cut away, and Fig. 3 is an enlarged view of the main parts. Longitudinal cross-sectional view, Figure 4 is the 3rd
FIG. 5 is a sectional view taken along the line IV--IV in the figure, and FIG. 5 is a sectional view showing a different operating state from FIG. 4. In the drawing, 3 is a water tank, 4 is a rotating tank, 14 is a water tank, and 20
is a pump device, 25 is a solenoid valve (on/off valve), 26 and 27
is a hose (waterway).

Claims (1)

[Scope of utility model registration request] In a washing machine in which water storage tanks are installed side by side, there is one water passage that communicates the bottom of the washing tub and the bottom of the water storage tank with each other, and the washing water is passed between the washing tub and the water storage tank through this water passage. 1. A water storage device for a washing machine, comprising a pump device that performs delivery and reception, and an on-off valve that is interposed in the water passage and opens and closes in conjunction with activation and deactivation of the pump device.