JPS5812687A - Water storage apparatus for automatic washing machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is an automatic washing machine that automatically performs processes from detergent washing to rinsing, and stores the washing liquid drained from the washing machine in a water storage tank for use in the next washing. Related to machine water storage devices.

Recently, in order to save washing water used for washing, it has been considered that the washing water that has been used once is stored in a water storage tank, and when washing water is short, it can be transferred from the water storage tank to the washing tub and used again. ing.

However, in conventional washing machines, the operation of the washing machine must be done manually only, so the pump for transferring the washing water to the water storage tank must also be stopped manually. However, when used in parallel with an automatic washing machine that automatically runs a series of processes such as water supply, detergent washing, and drainage using a timer, it has the disadvantage that it is very troublesome to operate.

The present invention was developed in view of the above-mentioned problems, and its purpose is to automatically start operating the pump when washing water is drained from the drain hose, and to store the washing water in the water storage tank. Therefore, a water storage device for an automatic washing machine that can be installed in parallel with an automatic washing machine and makes the operation extremely simple! ! - To provide.

An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a fully automatic washing machine that also serves as a dewatering and dewatering machine, which is elastically suspended within an outer box, and has a rotating tub 6 serving as a washing and dehydrating tub within a cold water receiving tank 2, and an agitating machine at the inner bottom of the spinning tub 3. J114
is provided. Then, the drain port 2 at the bottom of the water receiving tank 2
A drain hose 6 is connected to a via a drain solenoid valve 5. On the other hand, reference numeral 7 denotes a water storage device, in which a water storage tank 8 having a capacity approximately equal to that of the water receiving tank 2 is provided.

A pump 9 is driven by a motor 10, and a pump tank 11 is provided on the suction side of the pump.

Reference numeral 12 denotes an inflow pipe, which has a connection port 12a't for connecting the drain hose 6 at one end, and a solenoid valve 13 connected to the other end. 12b is connected to the pump tank 11, and is similarly branched from the middle of the branch pipe 12 to form a drainage pipe section 120.
is the water storage device f! via the drain valve 14 in the middle. 17. A connecting pipe 15 has one end connected to the bottom of the water storage tank 8, and the other end thereof is connected to the inflow pipe 12 via a solenoid valve 13. Reference numeral 16 denotes a switching valve connected to the discharge pipe 17 of the pump 9, one outlet side of which is connected to the water storage tank 8 via the connecting pipe 18, and the other outlet side is connected to the companion supply pipe 19t-rotating tank. 3. Reference numeral 20 denotes a float switch as a detection means provided in the pump (5) tank 11, and this is turned on when the washing water flows into the pump tank 11 up to the liquid level. 21 is a float switch provided in the water storage tank 8.

Now, in the electrical circuit diagram shown in Figure 2, 22.25
is a current transformer power supply terminal, and 24 is a power switch.

25 is a selection switch that can be changed manually.

26 is a selection switch as a switch that is switched in conjunction with the switching operation of the switching valve 16; 27 is a first relay;
This Lekoi/L'27 B is connected in parallel to the pump 9 and has a normally closed contact 27b and a normally open contact 270. 28 is the second relay, relay Koi A/zaa
and normally open contacts 28b and 28C. 29 is the sixth relay, which has Lekoi/L/29a and normally closed contact 29.
It consists of b.

The drain valve 14 has a normally open contact 28b and a normally closed contact 27b.
A valve opening means 30 consisting of a series Ig circuit with a power switch 24 is connected in series between the transformer power supply terminals 22 and 23.

(6) Next, the operation of the present embodiment configured as above will be explained. When the timer of the dehydrating and washing machine 1 is operated by the timer F to start the washing operation, the power switch 24 is turned on, and at the same time, the movable contact C of the selection switch 25 is selectively operated to the automatic side and the fixed contact side, and Switching valve 16f, water storage tank 8
Switch to the side.

In this state, since the normally open contact 28b of the valve opening means 30 is open, the drain valve 14 is closed, and the movable contact piece C of the selection switch 26 is moved to the fixed contact piece a side in conjunction with the changeover valve 16. Since it is in contact, the solenoid valve 13 is closed. Then, when the dewatering and washing machine 1 completes the water supply and detergent washing process and the drain solenoid valve 5 is opened, the washing water in the water receiving tank 2 flows through the drain hose 6 and the inlet pipe 12t. pump through tank 1
1. Then, the float switch 20 is turned on, and the pump 9 is operated via the contact piece (c-b) of the selection switch 25, the normally closed contact 29b, and the float switch 20, and the washing water flowing into the pump tank 11 is pumped. 9 to the discharge pipe 17. Switching valve 16. Water is supplied into the water storage tank 8 through the connecting pipe 18 in order, and the water storage tank 8
stored within.

By the way, when washing detergent in the dehydrating and washing machine 1, some washing water overflows from the water receiving tank 2 due to the vertical movement of the water surface due to the swirling water flow generated by the stirring blades 4 and flows into the pump tank 11 via the drain hose 6. However, at this time as well, when the float switch 20 is turned on, the pump 9 is activated, and the washing water is stored in the water storage tank 8 in the same manner as described above. On the other hand, the operating water level of the float switch 21 is higher than when the overflowing washing water from the water receiving tank 2 is stored in the water storage tank 8, and the dehydrating and washing machine 1 is operated at the lowest water level after washing with detergent. The float switch 21 is set at a water level that is sufficiently lower than the water level of the washing water that is drained and stored in the water storage tank 9. Therefore, the float switch 21 is set so that the washing machine 1 moves to the draining process and the pump 9 is activated. After being operated for a predetermined period of time, it reaches its operating water level and is turned on. On the other hand, since the first relay 27 is energized together with the pump 9 and the normally open contact 27G is closed, when the float switch 21 is turned on, the contacts (C-a) of the selection switch 26 and the float switch 21 and the normally open contact 270e, the second relay 28 relay #28a is energized.

When the relay coil/I/28a is energized, the normally open contact 28Q is closed, so that the second relay 28 is self-held via the normally open contact 280'i. However, when the relay coil fi/28& is energized, the normally open contact 28b is also closed, but since the normally closed contact 27b is open while the pump 9 is operating, the drain valve 14 remains closed. Then, when drainage from the water receiving tank 2 is completed and the water level in the pump tank 11 decreases, the float switch 20 is turned off and power to the pump 9 and the relay coil 27 & is cut off.
When the operation of the pump 9 is stopped and the normally closed contact 27b is closed, the drain valve 14 is connected to the normally open contact 28b and the normally closed contact 27.
energized and opened via the valve opening means 30 consisting of b.
Simultaneously with the opening of the drain valve 14, the fifth relay 29/L'29a is energized and the normally closed contact 29b is opened. That is, after the operation of the pump 9 is completed, the washing water remaining in the discharge pipe 17 and the connecting pipe 18 may flow backward through the pump 9 (9) and enter the pump tank 11, turning on the float switch 20. Since the normally closed contact 29b of the fifth relay 29 is open, the float switch 2
Even if 0 is turned on, the pump 9 will not be operated, and the pump 9 will not operate due to residual water remaining in the discharge pipe 17 and the connecting pipe 18.
This prevents the system from repeatedly shutting down intermittently. In this way, when the water is drained after detergent washing in the dehydrating and washing machine 1, the pump 9
After the washing water is stored in the water storage tank 8,
As is well known, the dehydrating and dehydrating washing machine 1 automatically performs each step of rinsing and dehydration based on the timing operation of a timer.

Since the drain valve 14 is open after the pump 9 stops operating, the water drained through the drain hose 6 during rinsing and dehydration is carried out through the inflow pipe 12 and the drain pipe section 12C'i.
In turn, the water is drained to the outside through the drain.

When the washing water stored in the water storage tank 8 is to be used for the second detergent washing after the first washing s' is completed as described above, the switching valve 16 is switched to the rotating tank 3 side. Then, in conjunction with this operation, the movable contact piece C of the switch 26 switches to the fixed contact side, so the solenoid valve 13 is opened, and at the same time, the relay coil/L
The power to /28a is cut off and the self-holding of the second relay 28 is released, while the normally open contacts 28b and 28c are returned to their open states, and the drain valve 14 is cut off and closed. Further, when this is affirmed, the power to the relay coil lv29& is also cut off, and the normally closed contact 29b is returned to the closed state. When the switching valve 16 is switched to the rotating tank 3 side in this way, the washing water stored in the water storage tank 8 flows into the pump tank 11 through the connecting pipe 15° solenoid valve 13 and the inflow pipe 12t. The switch 20 is turned on, and the normally closed contact 29b is connected to the pump 9 between the contacts (c and b) of the selection switch 25.
, float switch 20't-, and the washing water flowing into the pump tank 11 flows through the pump 9. It is supplied into the rotating tank 3 via the discharge pipe 17 and the supply pipe 19. Then, when the pump 9 is energized in this way, the first relay 27 relay/L' 27a is energized at the same time, so the normally closed contact 27b is turned off. When the float switch 2o is turned off, the operation of the pump 9 is stopped. After transferring the washing water to the rotating tub 3 in this way, set the timer of the dehydrating washing machine 1 to start the washing operation, and at the same time move the movable contact C of the selection switch 25 to the manual side fixed contact A. When the drain valve 14 is selected to the side, the drain valve 14 is opened, and the waste water generated when the drain electromagnetic valve 5 is opened is discharged to the outside. In addition, if the movable contact piece 0 of the selection switch 26 is switched to the fixed contact piece a side without operating the selection switch 25 after setting the timer of the dehydrating and washing machine 1, the washing water can be is stored in the water storage tank 8.

According to this embodiment configured in this way, the washing water from the drain hose 6 is stored in the water storage device! 7, this is detected by the float switch 2o and the pump 9 is automatically operated to store the water in the water storage tank 8. There is no need to provide any electric circuit to perform this, and the control circuit for the water storage device ff17 can be configured as an electric circuit separate from the dehydrating/washing machine 1.
There are no restrictions on the model of the dehydrating/washing machine 1 to be combined with the water storage device 7. Then, the float switch 20 detects the presence or absence of drainage from the drainage hose 6, and the pump 9
Since the operation stop of the washing machine 1 is automatically controlled, all you need to do is operate the power switch 241 and the selection switch 25, 26 when the dehydrating and washing machine 1 starts washing. Since water is stored in the washing machine 8, the user only needs to perform the necessary operations during the first set operation, and the user can leave the washing machine 1 until the final spin is completed. It is simple and easy to use, and washing water can be stored in a water storage tank 8 without impairing the usability of the dehydrating and washing machine 1, and the washing water can be used effectively.

In the above embodiment, the example is a case where the washing machine is installed in parallel with the dewatering and dehydrating washing machine #1a1, which performs from water supply to final dehydration. It can be used in the same way even if the machine is used for regular pruning. It is possible to provide a water storage device for an automatic washing machine, in which washing water is stored in a water storage tank at the start of the process, and can be installed in parallel with an automatic washing machine, making the operation extremely simple.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention. FIG. 1 is a schematic vertical cross-sectional view, and FIG. 2 is an electric circuit diagram. In the drawings, 1 indicates a dehydrating and washing machine (automatic washing machine) 2 is a water tank, 3 is a rotating tank (washing tub), 6 is a drainage hose, 7 is a water storage device, 8 is a water storage tank, 9 is a pump, 13 is a solenoid valve, 1
4 is a drain valve, 16 is a switching valve, 20 is a float switch (
21 is a float switch, 25 is a selection switch, 26 is a selection switch (switch), 27 is a first relay, 28 is a second relay, 29 is a third relay, 3
゜ is a valve opening means.

Claims (1)

[Claims] 1. A pump for receiving washing water discharged from a drainage hose of an automatic washing machine, a water storage tank for receiving and storing washing water discharged by the pump, and a water storage tank for receiving and storing washing water discharged from the drainage hose, A water storage device for an automatic washing machine, comprising: detection means for detecting that the pump has been washed and operating the pump. E. The water storage device for an automatic washing machine according to claim 1, wherein the detection means is constituted by a float switch provided on the suction side of the pump. 8. The suction side of the pump has a drain valve for discharging washing water to the outside, and when a certain amount of washing water is stored in the water storage tank and the pump stops operating, the drain valve is opened. The water storage device for an automatic washing machine according to claim 1, further comprising a valve opening means. (1) Generally, the valve opening means includes a normally closed contact of a first relay that operates in conjunction with the operation of the pump, and a second relay that is self-held when a predetermined amount of washing water is stored in the water storage tank. The water storage device for an automatic washing machine according to claim 5, characterized in that it is constituted by a series circuit of normally open contacts. 6. The water storage tank has a float switch, and the operating water level of the float switch is set to a higher water level than the water level of the washing water discharged by the overflower and stored in the water storage tank during detergent washing of the automatic washing machine, and The automatic washing machine is installed at a water level sufficiently lower by n% than the water level of the washing water that is drained after washing with detergent at the lowest water level and stored in the water storage tank, and the second relay is activated based on the operation of the float switch. The water storage device for an automatic washing machine according to claim 1, characterized in that the water storage device is self-retained. 6. The pump has a switching valve on the discharge side for selectively supplying the discharged water to the water storage tank and the washing tub of the automatic washing machine, and the water storage tank supplies the washing water stored inside to the inlet of the pump. Claim 1, characterized in that the TM valve has a solenoid valve for guiding the washing machine, and the TM valve is opened by being energized via a switch that detects that the switching valve has been selected to the washing tub side.
A water storage device for an automatic washing machine as described in . 7. The water storage device for an automatic washing machine according to claim 3, wherein the pump is energized via a normally closed contact of a third relay that operates in conjunction with the opening of the drain valve. 8. The water storage device for an automatic washing machine according to claim 3, wherein the drain valve has a selection switch that stops the operation of the pump and the valve opening means and manually opens the drain valve. .