JPH08173686A - Washing machine with built-in feedwater pump - Google Patents

Abstract

PURPOSE: To provide a washing machine with its convenience enhanced by a built-in feedwater pump capable of both bath-watering and washing water circulation for a reduction in cost. CONSTITUTION: A built-in feedwater pump 18 and selector valve 19 for switching between a washing water circulation path and bath feeding path are provided. For bath feeding, the selector valve 19 is opened to the dehydration/washing tub 3 side and closed to the bath feeding hose 20 side for feeding from a feed valve 36. The feedwater pump 18 is primed, and the selector valve 19 is closed to the dehydration/washing tub 3 side and opened to the bath feeding hose 20 side for the pump 18 to feed a specified amount of bath water to the dehydration/washing tub 3. Upon completion of this process, the pump 18 is stopped, the selector valve 19 is closed to the bath feeding hose 20 side and opened to the dehydration/washing tub 3 side, and then the pump 18 resumes its operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a fully automatic washing machine, and more particularly to a self-washing machine having a function of pumping bath water and a function of circulating washing water in a water tank for improving lint collecting ability. The present invention relates to a washing machine with a water absorption pump.

[0002]

2. Description of the Related Art First, in a conventional washing machine of this type,
As one having a circulation function of washing water, for example, one disclosed in Japanese Utility Model Laid-Open No. 3-34485 is known. As shown in FIG. 5, the washing machine of this prior art example suspends a water tub 2 with a hanging rod 4 inside an outer box 1, and a dehydration and washing tub 3 is provided in the water tub 2 and the dehydration and washing tub is also provided. A pulsator 5 is disposed in the center of the pulsator 3, and a motor 6 is disposed below the water tank 2. The motor 6 is driven by a mechanism 7 including a speed reducer and the washing shaft of the pulsator 5 and dehydration. Combined washing tub 3
It is connected to the dehydration shaft.

A top panel 8 is arranged at the upper end of the outer box 1. The top panel 8 is formed with a laundry inlet 9 that can be opened and closed by a lid 10 in the center, and a detergent box 45 is provided on the rear end side. A water injection port 32 is provided as a discharge port. Reference numeral 12 is a balancer formed on the upper edge of the dehydration and washing tub 3.

A circulation hose 26 is provided in the outer space of the water tank 2 in the outer box 1. This circulation hose 26 forms a circulation flow path for the washing liquid, one end of which communicates with the bottom of the water tub 2, a pump 46 is interposed in the middle thereof, and the other end discharge opening 47 has a function of dehydrating and washing. It is open above the tank 3. The discharge opening 47 faces the detergent box 45. A lint filter 48 made of a mesh net is detachably attached to the detergent box 45.

When the amount of water supplied reaches a predetermined value in the washing machine having the above-mentioned structure, the pulsator 5 rotates and the pump 46 starts operating, whereby the washing water in the dehydrating and washing tub 3 circulates. Do laundry operation. During this washing operation, the circulating fluid causes the detergent in the detergent box 45 to be put into the dehydrating and washing tub 3 and dissolved in the water in the aquarium 2. The lint floating in the washing liquid thus generated passes through the flow path circulating between the circulation hose 26 and the water tank 2 and the detergent box 45.
It is collected by the lint filter 48 inside.

Secondly, as one having a function of pumping bath water, for example, one disclosed in Japanese Patent Laid-Open No. 4-17896 is known. In this prior art example, as shown in FIGS. 6 and 7, a water supply pump 49 to be used by being put into the bath water in the bathtub 42 is prepared. In use, the water supply pump 49 is communicatively connected to the fully automatic washing machine A via the hose 39, the pump cord 50, and the bath water joint 41.

On the other hand, the fully automatic washing machine A has an outlet 52 for inserting a plug 51 extending from the pump side,
A bath water inlet 22 for inserting the bath water joint 41 is provided in the rear portion of the upper surface. As shown in FIG. 7, the fully automatic washing machine A is basically the same as the first prior art example, but the pump circulation path is omitted, and the fully automatic washing machine A is shown in FIG. The circulation pump 46 and the circulation hose 26 are not internally provided, and a lint filter (not shown)
Is provided in the dehydration and washing tub 3.

Therefore, the washing water in the water tub 2 is only discharged from the drain hose 17 with the drain valve connected to the bottom opening of the water tub 2. Further, the bath water inlet 32 connected to the bath water inlet 22 and the water supply valve 36 is arranged on the top panel 8, and the bath water is supplied from the bath water inlet 32 to the dewatering and washing tub 3. Is configured.

When the washing machine having the above structure is started, the water in the bathtub 42 is supplied to the hose 3 by the water supply pump 49.
After being pumped from the water suction port 22 to the bath water injection port 32 via 9 and supplying a predetermined amount of water to the dehydration and washing tub 3, the water supply pump 4
Stop 9 and rotate pulsator 5 to start washing operation.

Thirdly, as a concrete constitution of the circulation pump, for example, the one disclosed in Japanese Utility Model Laid-Open No. 3-49086 can be mentioned. As shown in FIG. 8, in the circulation pump of this prior art example, a pump casing 54 in which an impeller 53 is installed is provided with a water drainage hole 55 for discharging water remaining in the pump after the operation is completed, and thus a cold cooling is performed. If there is a risk of freezing or the like at this time, the stopper 56 of the water drain hole 55 can be pulled out to drain water.

[0011]

The following problems occur in the construction of the washing machine according to the above-mentioned first to third prior art examples or a combination thereof. That is, the first
In addition, the washing water circulation pump 46 in the first prior art example is intended to improve cleaning performance, detergent dissolution, and lint collection rate, and is incorporated in the main body of the washing machine. However, it is impossible to remove water from the bathtub 42 because it does not have a self-priming mechanism for removing water from the bathtub 42. Therefore, in order to take water from the bathtub 42, in addition to the built-in washing water circulation pump 46, a water removal pump for the bathtub 42 is required, and as a result, two types of pumps are required, which is convenient. In addition to high cost, there is a problem in convenience.

Secondly, when the bath water is supplied to the washing machine,
According to the second prior art example, the water supply pump 49 provided separately from the main body of the fully automatic washing machine A is connected to the pump cord 50 and the hose 39. It is necessary to directly enter the bathtub 42. However, since the water supply pump 49 is relatively heavy and bulky, it takes a lot of time and labor to put the pump 49 in and out of the bathtub 42 at the time of use.

Thirdly, as in the above-mentioned first prior art example, in the case where the lint filter 48 is attached to the detergent box 45, there is a disadvantage that the detergent is easily clogged with the filter mesh and undissolved residue of the detergent adheres. .

Fourthly, as in the third prior art example, in the pump casing 54 provided with the water drain hole 55 for discharging the water remaining in the pump, there is a fear of freezing or the like after the end of the operation. In some cases, water must be drained by a manual operation such as a bottle opener operation, which is troublesome and lacks in convenience.

The present invention has been made to solve the above-mentioned conventional problems, and enables the supply of bath water and the circulation of washing water with a single self-priming water pump, thereby reducing the cost and It is an object of the present invention to provide a washing machine with a self-priming water pump for improved convenience.

[0016]

In order to achieve the above object, according to the present invention, a self-priming water pump is provided in the middle of a drainage channel communicating with a dehydrating and washing tub, and an upper part of an outer box is provided via the self-priming water pump. From the upper part of the outer box through a self-priming pump to supply the bath water from the upper part of the outer box to the dehydration and washing tub through the self-priming pump. A bath water supply path is provided, and a switching valve that selectively switches between the wash liquid circulation path and the bath water absorption path is provided on the water absorption side of the self-absorption pump.

Further, more specifically, the following configuration can be adopted. First, the switching valve is formed integrally with the casing of the self-priming water pump on the water absorption side of the self-priming water pump. Secondly, a lint collecting device is provided at the discharge port of the circulation hose that pumps the washing liquid to the upper part of the outer casing from the self-priming water pump, and the detergent is introduced downstream of the lint collecting device by the tap water supply means. Arrange the equipment. Thirdly, a communication pipe is provided between the water supply means and the vicinity of the discharge port of the circulation hose to allow the self-priming water pump to prime the water. Fourthly, the self-priming water pump is provided with a water drain hole, and a water passage for connecting the water drain hole and the drain passage is provided, and the water passage is opened / closed in conjunction with opening / closing of the drain valve.

Sixth, in the above construction, the control means for controlling the water supply operation is constructed as follows. That is, when the bath water is supplied, the switching valve is opened to the dehydration / washing tub side, the bath water hose side is closed, water is supplied from the water supply means, and the self-priming pump is primed, and then the switching valve is turned on again. Is closed to the dehydration / washing tub side, the bath water hose side is opened, and a predetermined amount of bath water is supplied to the dehydration / washing tub by the self-priming water pump. At the time of completion, the self-priming water pump is stopped, the switching valve is closed to the bath water hose side, opened to the dehydration and washing tub, and the operation of the self-priming water pump is restarted.

[0019]

According to the above construction, the switching valve formed integrally with the self-priming water pump is opened to the washing tub side and closed to the bath water side during the washing operation. At this time, since the drainage valve of the washing liquid in the dehydration and washing tub is closed, when the operation of the self-priming water pump is started, it flows into the self-priming water pump through the switching valve,
A circulation path is formed to return to the washing tub via the circulation hose, the lint collecting device, and the detergent feeding device.

On the other hand, when the bath water is supplied, the switching valve is opened on the bath water hose side and closed on the washing tub side, and the self-priming water pump operates. By priming the air in the self-priming pump,
The suction circulation hose is discharged and the bath water is sucked into the self-priming pump. The sucked water is discharged to the circulation hose, passes through the same route as above, and is supplied to the washing tub. When a predetermined amount of water is supplied to the washing tub, the washing operation is started in the same manner as above. Therefore, it is possible to supply bath water and circulate washing water with a single pump.

According to the above-mentioned second construction, high-pressure tap water is jetted from the water supply port in the form of a shower to dissolve the detergent into the washing tub. When the washing operation is started, the circulating washing water passes through the lint collecting device, the lint in the washing water is collected and supplied to the detergent input port, and the detergent is dissolved, and then the washing water is poured into the washing tub. . Therefore, by disposing the lint collecting device and the detergent feeding device separately and installing the detergent feeding device in the downstream portion of the lint collecting device, the detergent can be dissolved by the circulating water.

According to the above-mentioned third structure, a certain amount of priming water is initially required in the self-priming water pump when the bath water is supplied to operate the self-priming water pump. In order to supply the priming water, the water supply valve is opened for a certain time, and a predetermined amount of water is supplied from the water supply hose to the self-priming water pump from the circulation hose via the communication pipe. At this time, by opening the switching valve on the washing tub side and closing it on the bath water side, even if water is supplied from the pump discharge side, the pump suction side is open to the atmosphere and water can be smoothly supplied into the pump. Becomes

According to the above-mentioned fourth structure, during the operation of the self-priming water pump, a water passage is provided from the water draining hole to the drain valve in order to always close the drain hole of the self-priming water pump. By interlocking the opening and closing of the, it is possible to operate the pump without problems when there is water in the washing tub, that is, when washing and rinsing. Further, when the drain valve is opened, the water in the washing tub can be drained and the inside of the pump can be drained, so that the pump will not be damaged during freezing.

[0024]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a longitudinal section of a washing machine with a self-priming water pump according to this embodiment. In this figure, 1 is an outer box constituting the outer shell of the main body of the washing machine, 2 is a water tub, and 3 is a dehydrating and washing tub. The water tub 2 is suspended in the outer box 1 by a plurality of suspension rods 4 as a vibration isolation mechanism, and the water tub 2 has a dehydration and washing tub 3 disposed therein. A pulsator 5 is arranged in the center of the dehydration and washing tub 3.

A motor 6 is provided in the outer case 1 below the water tank 2, and an output shaft of the motor 6 is provided with a washing shaft of the pulsator 5 and a washing shaft of the pulsator 5 through a mechanism portion 7 including a V belt and a speed reducer. A dehydration shaft of the dehydration / washing tub 3 is switchably linked. A top panel 8 is arranged at the upper end of the outer box 1. A lid 10 is attached to the top panel 8 to cover the laundry inlet 9 so that the laundry inlet 9 can be opened and closed. Reference numeral 11 denotes a control circuit incorporating a microcomputer, which is mounted on the front surface of the upper end portion of the outer box 1.

The dewatering / washing tub 3 has a hollow balancer 12 mounted on the upper end opening, and an openable / closable drain port 13 formed at the center of the bottom. Also, drain port 1
The peripheral wall and the bottom wall except for 3 are all non-perforated walls, and the peripheral wall is formed in a conical shape.

The drainage port 13 communicates with a drainage channel 14 formed at the bottom of the water tank 2. The drainage channel 14 communicates with a drainage pipe 15 extending downward from the bottom of the water tank 2. At the end of the drainage pipe 15, a drainage valve 1 interlocking with the drainage port 13 is provided.
6 is provided. From this drain valve 16 to the drain hose 1
7 is outboard. With such a structure of the drainage flow path, the washing water in the dehydration / washing tub 3 is in an open state.
3 through a drainage channel 14, a drainage pipe 15, a drainage valve 16 and a drainage hose 17 to the outside of the machine.

During dewatering, the drainage port 13 and the drainage valve 16 connected to the drainage port 13 are opened to open the drainage flow path, and the wash water is drained through the flow path and then contained in the cloth. The water to be dewatered is pumped and dewatered by a centrifugal force generated by the rotation of the dewatering and washing tub 3 from an upper dewatering hole (not shown) of the dewatering and washing tub 3.

Reference numeral 18 is a self-priming water pump, and 19 is a switching valve integrally formed with the casing of the self-priming water pump 18. The switching valve 19 has openings on three sides, one end opening is connected to the middle of the drain pipe 15, the other end opening is connected to the lower end of the bath water hose 20, and a branch end opening is further provided. It is connected to the suction port 21 of the self-priming water pump 18. The bath water hose 20 is arranged from the rear part of the outer case 1 to the lower space, and the upper end thereof is connected to the bath water suction port 22 opening on the top panel 8.

The switching valve 19 is closed by an internal valve element (not shown) on the drain pipe 15 side, that is, the dehydration / washing tub 3 side and the bath water hose 20 side is opened, or the dehydration / washing is performed. It operates so that the tub 3 side is opened and the bath water hose 20 side is closed, and the flow path from the dehydration / washing tub 3 to the self-priming water pump 18 and the flow path from the bath water hose 20 to the self-priming water pump 18 The switching is made possible by a motor or the like (not shown) controlled by the control circuit 11.

A water drain hole 23 is provided in the bottom of the pump casing of the self-priming water pump 18, and a water passage 24 from the water drain hole 23 to the drain valve 16 is provided. The water passage 24 is configured to open / close in conjunction with the opening / closing operation of the drain valve 16. With this configuration, the water passage 24 is closed during the operation of the self-priming water pump 18 to prevent the capacity of the self-priming water pump 18 from being deteriorated, and the self-priming water pump 18 is prevented from being washed when the washing is finished and the washing liquid is drained. The water existing in the can be drained at the same time, and the damage to the pump during freezing can be prevented.

A circulation hose 26 is connected to the discharge port 25 of the self-priming water pump 18. Similar to the bath water hose 20, the circulation hose 26 is arranged from the rear part of the outer case 1 to the lower space, and the upper end discharge port 27 is arranged in the top panel 8 to collect the yarn waste collecting device 28. It has an opening inside. As a result, the discharge port 25 of the self-priming water pump 18 → the circulation hose 26 → the detergent feeding device 29 described later → the dehydration and washing tub 3 → the water tub 2 → the drainage channel 14 → the drain pipe 15 → the switching valve 19 → the suction of the self-priming water pump 19 A circulation path is formed back to the mouth 21.

The yarn waste collecting device 28 is made of a mesh mesh case and is detachably mounted in the top panel 8. The detergent feeding device 29 is a lint collecting device 28.
It is removably attached to the top panel 8 below, and by inserting the partition plate 30 inside,
The rear portion of the partition plate 30 serves as a detergent feeding portion 31, and the water injection port 32 is opened in the front portion.

The tip end ejection port 34 of the water supply hose 33 is made to face the upper part of the detergent feeding device 29. This water supply hose 33 is provided with a water supply connector 35 that faces the upper surface of the top panel 8 and a water supply valve 36 is interposed in the middle of the water supply hose 33. The tip end ejection port 34 facilitates the dissolution of the detergent in the detergent input portion 31. It is composed of many shower-shaped small holes. Further, a communication pipe 37 is provided between the middle portion of the water supply hose 33 downstream of the water supply valve 34 and near the upper end discharge port 27 of the circulation hose 26 to connect the two.

With such a structure, the circulating water discharged from the upper end discharge port 27 of the circulation hose 26 collects the yarn waste collecting device 2
After passing through 8, the detergent is introduced into the detergent charging device 29 through the opening 38 formed in the top panel 8 and further the water injection port 32.
It is thrown into the dehydration and washing tub 3 further.

FIG. 2 shows a state of use when the bath water is supplied. In this state of use, the bath water supply hose 39 has one end connected to the filter 40 for removing foreign matter in the bath water, and the other end connected to the bath water joint 41.
Then, at the time of use, the filter 40 is immersed in the bath water in the bathtub 42, and the bath water joint 41 is connected to the bath water suction port 2 of the washing machine.
Connect to 2. In the figure, 43 is a power plug, 44
Is a ground wire.

Next, the operation of the above configuration will be described.
First, in order to perform washing, the lid 10 is opened and the laundry is put into the dehydration and washing tub 3, while a predetermined amount of detergent is put into the detergent feeding device 29, and then the operation is started.

FIG. 3 shows a control program operation at the time of execution of bath water supply in the microcomputer which constitutes the main part of the control circuit 11. As shown in this flowchart, when the operation is started in step # 5, step # 1
At 0, the switching valve 19 is opened to the dehydration and washing tub 3 side and closed to the bath water side, and at step # 15, the water supply valve 34 is opened to supply water. Tap water flows from the water supply connector 35 through the water supply hose 30, part of which flows into the detergent feeding device 29, and another part of which flows through the communication pipe 37 and the circulation hose 26 into the self-priming water pump 18.

At this time, since the switching valve 19 is open to the dehydration and washing tub 3 side and is open to the atmospheric pressure, the self-priming water pump 18 is smoothly supplied with water for a certain period of time. If it is recognized in step # 20 that the predetermined time until completion of priming has elapsed, the water supply valve 34 is closed in step # 25.

Next, in step # 30, the switching valve 19 is closed to the dehydration and washing tub 3 side and opened to the bath water side, and step # 35
The self-priming water pump 18 is operated. The air in the bath water hose 20 and the bath water supply hose 39 is sucked by the self-sufficient action of the self-priming water pump 18 by the priming, and the circulation hose 26
The bath water in the bathtub 42 is gradually sucked up as it is discharged to the bath water supply hose 39 to the bath water hose 2
0, passing through the switching valve 19 through the self-priming water pump 18, passing through the thread collecting device 28 from the circulation hose 26,
The detergent flows into the detergent feeding device 29 through the opening 38, and while the detergent in the detergent feeding device 29 is dissolved, the detergent is fed from the water injection port 32 into the dehydration / washing tub 3.

When it is recognized in step # 40 that the dehydration / washing tub 3 has been supplied with water up to a predetermined level, the self-priming water pump 18 is stopped in step # 45. Next, in step # 50, the switching valve 19 is opened to the dehydration / washing tub 3 side and closed to the bath water side. In step # 55, the operation of the self-priming water pump 18 is restarted and the pulsator 5 is rotated to perform the washing operation. I do.

When it is recognized in step # 60 that the washing operation has ended, the self-priming water pump 18 and the pulsator 5 are stopped in step # 65, and the drain valve 16 is opened in step # 70 to drain water. In this case, the water is also drained from the drainage water passage 24 provided at the bottom of the casing of the self-priming water pump 18. Thereafter, in step # 75, the operation according to the predetermined course program is executed.

FIG. 4 shows the control program operation in the microcomputer of the control circuit 11 when the bath water is not supplied. In this case, when the operation is started in step # 105, the switching valve 19 is opened to the dehydration / washing tub 3 side and closed to the bath water side in step # 110, and the operation is performed in step # 1.
At 15, the water supply valve 34 is opened to supply water.

When it is recognized in step # 120 that the water level has reached the predetermined level, the water supply valve 34 is closed in step # 125, the self-priming water pump 18 is operated in step # 130, and the pulsator 5 is rotated to perform washing. Step #
When it is determined that the washing is completed at 135, step # 14
At 0, the self-priming water pump 18 and the pulsator 5 are stopped, and at step # 145, the drain valve is opened to drain water.

[0045]

As described above, according to the present invention, firstly, the pump is a self-priming water pump, and the switching valve for selectively switching between the washing liquid circulating path and the bath water absorbing path is self-priming water. Since it is provided on the water absorption side of the pump, bath water can be supplied and wash water can be circulated by a single self-priming water pump, which can reduce costs and improve convenience. In particular, it is no longer necessary to insert the bath water supply pump into the bathtub, which is conventionally required, or to provide a cord or an outlet accompanying it.

Secondly, since the switching valve is formed integrally with the casing of the self-priming water pump, the number of parts can be reduced, and since the connecting portion between the switching valve and the self-priming water pump is eliminated, the seal is sealed. The part can be reduced and the mechanical robustness is improved. Thirdly, since the detergent feeding device is arranged in the downstream portion of the lint collecting device, the detergent can be dissolved and fed with the washing water from which the lint is removed. Therefore, the detergent can be dissolved and dispensed by the circulating water without the lint attached to the detergent dispenser.

Fourthly, since the water supply means for supplying tap water to the detergent feeding device and the vicinity of the discharge port of the circulation hose are connected by a communication pipe, the water suction means is controlled to prime the self-priming water pump. Therefore, it is not necessary to newly provide a priming pipe and a water supply valve, and the number of parts can be reduced and the cost can be reduced.

Fifth, by connecting the opening and closing of the drainage water passage of the self-priming water pump with the opening and closing of the drain valve, it is not necessary to provide a new drainage valve for the water passage, and the control method is simplified. As a result, the number of parts can be reduced, the cost can be reduced, and the pump can be easily prevented from being damaged when frozen.

Sixthly, since the priming of the self-priming water pump, the supply of bath water, the circulation of washing water and a series of operations can be performed only by controlling the water supply valve, the switching valve and the self-priming water pump, the bath is easily controlled. Water supply and washing water can be circulated, and water-saving measures by using bath water can be effectively realized, and the circulation of washing water can significantly improve the lint collection performance and washing performance.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a washing machine with a self-priming water pump according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a usage state when supplying bath water.

FIG. 3 is a flowchart showing a control operation at the time of executing bath water supply.

FIG. 4 is a flowchart showing a control operation when bath water is not supplied.

FIG. 5 is a vertical sectional view of a washing machine with a pump according to a first prior art example.

FIG. 6 is a perspective view of a washing machine with a pump according to a second prior art example.

FIG. 7 is a vertical sectional view thereof.

FIG. 8 is a sectional view of a main part of a pump according to a third prior art example.

[Explanation of symbols]

 1 Outer Box 2 Water Tank 3 Dehydrating / Washing Tank 5 Pulsator 6 Motor 8 Top Panel 11 Control Circuit 15 Drain Pipe 16 Drain Valve 17 Drain Hose 18 Self-Priming Pump 19 Switching Valve 20 Bath Water Hose 22 Bath Water Suction 23 Water Drain 24 24 Through Water channel 26 Circulation hose 28 Yarn waste collection device 29 Detergent input device 36 Water supply valve 37 Communication pipe 39 Bath water water supply hose

Claims (3)

[Claims] 1. A washing machine with a self-priming water pump having a self-priming water pump installed in the middle of a drainage channel communicating with a dehydration and washing tub arranged in an outer box, wherein the self-priming water pump is used. A washing liquid circulation path for circulating a washing liquid from the upper part of the outer box to the dewatering / washing tub, and from the upper part of the outer box via the self-priming pump from the bath water suction port arranged in the upper part of the outer box A bath water supply path for supplying bath water to the washing tub is provided, and a switching valve for selectively switching the washing liquid circulation path and the bath water absorption path is provided on the water absorption side of the self-absorption pump. A washing machine with a self-priming water pump. 2. An outer box, a dehydration / washing tub arranged in the outer box, a self-priming water pump interposed in the middle of a drainage channel communicating with the dehydration / washing tub, and the self-priming water. A circulation hose for pumping the washing liquid from the pump to the upper part of the outer box, a yarn waste collecting device provided at the discharge port of the circulation hose, and a detergent feeding device arranged downstream of the yarn waste collecting device. A water supply means for supplying tap water to the detergent charging device, a communication pipe for connecting the water supply means and the vicinity of the discharge port of the circulation hose, a drain hole provided in the self-priming water pump, and the drainage flow. A water passage for communicating with a passage, and a washing liquid circulation path for circulating a washing liquid from the upper part of the outer box to the dehydration and washing tub via the self-priming water pump and a circulation hose; and the outer box. From the bath water intake located at the top through the self-priming pump A washing machine with a self-priming water pump having a bath water supply path for supplying bath water from the upper part of the outside box to the dehydration and washing tub, wherein the washing liquid circulation path and the bath water absorption path are selectively switched. A washing machine with a self-priming water pump, wherein a switching valve is integrally formed with a casing of the self-priming water pump on a water absorption side of the self-priming water pump, and the opening and closing of the water passage is linked with the opening and closing of a drain valve. . 3. An outer box, a dehydration / washing tub arranged in the outer box, a self-priming water pump interposed in the middle of a drainage channel communicating with the dehydration / washing tub, and the self-priming water. A circulation hose for pumping the washing liquid from the pump to the upper part of the outer box, a yarn waste collecting device provided at the discharge port of the circulation hose, and a detergent feeding device arranged downstream of the yarn waste collecting device. A water supply means for supplying tap water to the detergent charging device, a communication pipe for connecting the water supply means and the vicinity of the discharge port of the circulation hose, a drain hole provided in the self-priming water pump, and the drainage flow. A water passage for communicating with a passage, and a washing liquid circulation path for circulating a washing liquid from the upper part of the outer box to the dehydration and washing tub via the self-priming water pump and a circulation hose; and the outer box. From the bath water intake located at the top through the self-priming pump A washing machine with a self-priming water pump having a bath water supply path for supplying bath water from the upper part of the outside box to the dehydration and washing tub, wherein the washing liquid circulation path and the bath water absorption path are selectively switched. A switching valve is formed integrally with the casing of the self-priming water pump on the water intake side of the self-priming water pump, and further, opening / closing of the water passage is linked with opening / closing of a drain valve, while providing control means for controlling water supply operation. Further, the control means opens the switching valve to the dehydration / washing tub side and closes the bath water hose side to supply water from the water supply means to supply water to the self-priming pump during bath water supply. After that, the switching valve is closed again on the dehydration and washing tub side, the bath water hose side is opened, and a predetermined amount of bath water is supplied to the dehydration and washing tub by the self-priming water pump. The prescribed amount of bath water has been supplied The self-water pump is stopped at point, closing the switching valve to the bath water hose side,
A washing machine with a self-priming water pump, which is opened in a washing tub for dehydration and functions to restart the operation of the self-priming water pump.