JPH1085488A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To discharge priming water within a pump by simple operation when there is the fear of freezing of priming water within the pump by feeding water to a washing tank by an incorporated pump, positioning an operation part for discharging water within the pump at the lower surface of an upper part armoring body and providing operably from a supply port. SOLUTION: At the time of using a bath water, water is supplied to a pump 22 through a water supply valve and after making the pump 22 full of water, the pump 22 is driven. Thereby, air within a water sucking hose 6 and priming water within the pump 22 is steam-mixed and then steam separated to make the pump 22 in a self water sucking state to supply bath water into a washing and dewatering tank 2. In addition, when there is the fear of freezing priming water within the pump 22 especially in a cold local area in winter time, a hand is inputted to the lower surface 25 of the upper part armoring body from the supply port 26 to press an operation part 24 upward to open a water discharging device 23 to discharge water within the pump 22. As the part 24 is projected to the upper surface 26 of the body 4, it can be operated by feeling.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine having a structure for supplying water to a washing tub by a pump for supplying bath water or the like.

[0002]

2. Description of the Related Art In recent years, resource saving has become an important theme, and there is a strong demand for water saving in washing machines. Utilizing the remaining hot water from the bath for washing is a very effective means of saving water.

Conventionally, this type of washing machine has been configured as shown in FIG. Hereinafter, the configuration will be described.

As shown in FIG. 1, a pump 1 self-absorbs bath water or the like and supplies water to a washing / dewatering tub (washing tub) 2. Attach,
A water-absorbing hose 6 having a water-absorbing filter device 5 at the tip is connected to a water-absorbing port 7, and the water-absorbing filter device 5 is placed in a bathtub 8. The water supply valve 9 is connected to the water receiving tank 1 through the water inlet 10.
In addition to supplying water to the washing and dewatering tub 2 disposed in the inside 1, in the case of using bath water, it operates for a predetermined time (about 20 seconds) to pour water into the washing and dewatering tub 2, and at the same time, is provided in the water inlet 10. The pump 1 is supplied from the priming discharge port 12 to the pump 1 through a priming pipe 14 connected to the priming port 13 so as to be filled with water. The discharge port 15 is connected to a water injection guide 17 through a discharge pipe 16, and is configured to inject water into the washing and dewatering tub 2 along the water injection guide 17.

A rotating blade 18 is rotatably arranged on the bottom of the washing and dewatering tub 2, and the rotating blade 18 and the washing and dewatering tub 2 are connected to a motor 1.
The rotation of 9 drives the speed reducer 21 via the belt 20 to perform washing and dehydration.

In the above configuration, the operation when the washing machine uses bath water will be described. First, water is supplied from the water supply valve 9 for a predetermined time, water is injected into the washing and dewatering tub 2, and at the same time, the priming pipe 1 is supplied from the priming discharge port 12 provided in the water inlet 10.
4, the water is supplied into the pump 1 in a full state. Immediately after that, the pump 1 is driven.

When the pump 1 is driven, the air in the water suction hose 6 and the priming water in the pump 1 are mixed with air and water, then separated into air and water. The air in the water suction hose 6 is sequentially discharged, and the air in the water suction hose 6 is discharged. When the air is exhausted, the bath water is sucked through the water suction hose 6, discharged from the discharge port 15, and supplied to the washing and dewatering tub 2 along the water injection guide 17. When water is supplied to the washing / dewatering tub 2 to a predetermined water level, the rotating blades 18 are rotated by the motor 19 to wash the laundry in the washing / dewatering tub 2.

[0008]

In such a conventional configuration, when the pump is installed outdoors in a cold region or the like, the priming water in the pump 1 freezes and the pump cannot be used until it is thawed. The pump 1 has a problem in practical use, for example, there is a possibility that water is leaked due to cracking or breakage due to freezing. Further, as means for preventing freezing, a pump of a washing machine or the like is covered with a blanket or the like, but it has not been possible to completely prevent freezing.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and has an object to discharge water in a pump by a simple operation when priming water in the pump is likely to freeze, thereby preventing freezing. .

[0010]

In order to achieve the above object, the present invention has a structure in which water is supplied to a washing tub by a built-in pump, and an operation unit for draining the pump is located on a lower surface of an upper exterior body. And made operable from the input port.

Thus, when there is a possibility that the priming water in the pump is frozen, the water in the pump can be reliably discharged by a simple operation, freezing can be prevented beforehand, and the pump can be frozen until it is thawed. It is possible to prevent the pump case from being unusable or from cracking or breaking due to freezing of the pump case, thereby preventing the possibility of water leakage.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is a washing machine having a structure in which water is supplied to a washing tub by a built-in pump, wherein an operation unit for draining the pump has an upper exterior body. It is located on the lower surface of the pump and can be operated from the inlet.If there is a possibility that the priming water in the pump may freeze, the water in the pump can be reliably discharged by simple operation, and the freezing The pump can not be used until it is thawed by freezing, and the pump case can be prevented from cracking or breaking due to freezing, thereby preventing the possibility of water leakage.

According to a second aspect of the present invention, in the first aspect of the present invention, the drainage operation unit is configured to be distinguishable from the upper exterior body by a tactile sensation during operation. When operating the operation unit for draining the pump by putting a hand on the lower surface of the upper outer case, it can be identified and operated as the upper outer case even if the operation unit is not visible, ensuring the water in the pump Can be discharged.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the drainage operation unit is made invisible from the charging port. Is operated when there is a possibility that the priming water in the pump may be frozen, and is not normally operated. Therefore, by making it invisible from the inlet, it is possible to make it easier for the user.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the operation part for draining and the drainage hole are arranged at substantially the same position, and the water is discharged from the pump. Since the water wets the finger for operating the operation unit, the presence or absence of water in the pump can be determined, and the water can be reliably discharged.

According to a fifth aspect of the present invention, in the fourth aspect of the present invention, the water discharged from the drain hole can be felt when the operating part for draining is operated. The presence or absence of water in the pump can be determined by the tactile sensation of the finger that operates the operation unit. By operating the operation unit until there is no more water in the pump, the water in the pump can be reliably discharged.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. The same components as those in the conventional example are denoted by the same reference numerals, and description thereof is omitted.

(Embodiment 1) As shown in FIG. 1 and FIG. 2, a pump 22 self-absorbs bath water or the like and supplies water to the washing and dewatering tub 2. It is attached inside the exterior body 4. A drainage device 23 is provided at the lowermost part of the pump 22, and the priming water in the pump 22 is discharged by operating the operation unit 24.
The operation unit 24 is located on the lower surface of the upper exterior body 4, and can be operated from an input port 26 provided in the upper exterior body 4. The inlet 26 is covered with a lid 27.

The operating section 24 is protruded from the lower surface 25 of the upper exterior body 4 so that it can be distinguished from the upper exterior body 4 by the tactile sensation at the time of operation. More invisible. FIG.
Here, the water supply valve 9, the water supply port 10, the water supply guide 17 and the like are omitted for simplicity.

In the above configuration, when using bath water, water is supplied from the water supply valve 9 for a predetermined time to supply water into the pump 22 in a full state, and the pump 22 is driven immediately thereafter, as in the conventional example. By doing so, after the air in the water suction hose 6 and the priming water in the pump 22 are mixed with air and water, the air and water are separated, and the pump 22 self-absorbs water and is supplied into the washing and dewatering tub 2. When water is supplied to the washing / dewatering tub 2 to a predetermined water level, the rotating blades 18 are rotated by the motor 19 to wash the laundry in the washing / dewatering tub 2.

When the washing operation is completed, the pump 22 is almost completely filled with water. In winter, especially when installed outdoors in cold regions, the priming water in the pump 22 may freeze. In such a case, the operation unit 2 is placed by putting a hand on the lower surface 25 of the upper exterior body 4 through the input port 26.
By pushing 4 upward, the water in the pump 22 can be discharged from the water draining device 23, and freezing can be prevented beforehand. Therefore, the pump 22 cannot be used until the pump 22 is thawed by freezing, and cracks and destruction due to freezing of the pump 22 can be prevented, thereby preventing the possibility of water leakage.

Here, the operating section 24 is projected from the lower surface 25 of the upper outer body 4 so that it can be distinguished from the upper outer body 4 by the tactile sensation during operation. When the operation unit 24 is operated by putting a hand on the lower surface 25, the operation unit 24 can be identified and operated even if the operation unit 24 is not visible, and the water in the pump can be reliably discharged.

Further, since the operation unit 24 is not visible from the inlet 26, the operation unit 24
When there is no fear that the priming water in 2 is frozen, there is no operation, and by making the priming water invisible from the inlet 26, it is possible to prevent the user from bothering.

In this embodiment, the operation unit 24 is projected from the lower surface 25 of the upper exterior body 4 so that the operation unit 24 can be distinguished from the upper exterior body 4 by the tactile sensation during operation. The operation part 24 is recessed from the lower surface 25 of the body 4, or the unevenness is provided on either the operation part 24 or the lower surface 25 of the upper exterior body 4 so that the operation part 24 and the upper exterior body 4 can be distinguished by a tactile sensation during operation. You may.

(Embodiment 2) As shown in FIG. 3, a water draining device 23 can slide an operation shaft 30 in a vertical direction in a water drain hole 29 provided at the lowermost part of a pump case 28 constituting the pump 22. , A valve element 31 is fitted to one of the operation shafts 30 so as to close the drain hole 29 by the spring force of a spring 32, and the operation section 24 is provided on the other.

That is, the operation unit 24 and the drain hole 29 are disposed at substantially the same position, and the operation unit 24 is operated to operate the pump 22.
When discharging the water inside, the water discharged from the drain hole 29 can be sensed. Other configurations are the same as those of the first embodiment.
Is the same as

In the above configuration, when the washing operation is completed, the pump 22 is almost completely filled with water.
In winter, especially when installed outdoors in cold regions, the priming water in the pump 22 may freeze. In such a case, as shown in FIG.
2 by pushing upward against the spring force of
Opens the drain hole 29 away from the drain hole 29, and discharges the water in the pump 22.

At this time, since the operation portion 24 and the drain hole 29 are arranged at substantially the same position, the water discharged from the pump 22 wets the finger for operating the operation portion 24. The presence or absence of water can be known, and water can be reliably discharged.

When operating the operation unit 24, the drain hole 2
Since the water discharged from the pump 9 can be tactilely sensed by a finger operating the operation unit 24, the presence or absence of water in the pump 22 can be determined by the tactile sensation of the finger operating the operation unit 24. By operating the operation unit 24 until the pressure disappears, the water in the pump 22 can be reliably discharged.

In the above embodiment, a washing and dewatering tub 2 is provided in the water receiving tub 11 and a rotary blade 18 is rotatably disposed on the bottom of the washing and dewatering tub 2. As described above, a two-tub washing machine using a fixed washing tub can also be configured in the same manner, and the same operation and effect can be obtained.

[0031]

As described above, according to the first aspect of the present invention, there is provided a washing machine having a structure in which water is supplied to a washing tub by a built-in pump. Is located on the lower surface of the upper exterior body and can be operated from the inlet, so when there is a risk that the priming water in the pump may freeze, the water in the pump can be reliably drained with a simple operation, and the freezing The pump can not be used until it is thawed by freezing, and the pump case can be prevented from cracking or breaking due to freezing, thereby preventing the possibility of water leakage.

According to the second aspect of the present invention, since the operation unit for draining can be distinguished from the upper exterior body by a tactile sensation at the time of operation, a hand is placed on the lower surface of the upper exterior body from the input port. When the operation unit for draining the pump is operated by inserting it, even if the operation unit is not visible, the operation can be performed by distinguishing the operation unit from the upper exterior body, and the water in the pump can be reliably discharged.

According to the third aspect of the present invention, since the drainage operation unit is made invisible from the inlet, the drainage operation unit is not normally operated. By making it invisible from the input port, it is possible to prevent the user from bothering.

According to the fourth aspect of the present invention, since the water draining operation section and the water draining hole are disposed at substantially the same position, the water discharged from the pump is used to operate the operation section. Because it is wet, the presence or absence of water in the pump can be known, and the water can be reliably discharged.

According to the fifth aspect of the present invention, the water discharged from the drain hole can be touched when the operation unit for draining is operated. By the tactile sensation, the presence / absence of water in the pump can be determined, and the water in the pump can be reliably discharged by operating the operation unit until there is no more water in the pump.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a washing machine according to a first embodiment of the present invention.

FIG. 2 is an enlarged perspective view of a main part of the washing machine.

FIG. 3 is a sectional view of a main part of a pump of a washing machine according to a second embodiment of the present invention.

FIG. 4 is a sectional view of a main part of the washing machine in a state where an operation unit of the pump is pressed.

FIG. 5 is a longitudinal sectional view of a conventional washing machine.

[Explanation of symbols]

 2 Washing and dewatering tub (washing tub) 4 Upper exterior body 22 Pump 24 Operation unit 25 Lower surface 26 Input port

Claims (5)

[Claims] 1. A washing machine having a structure in which water is supplied to a washing tub by a built-in pump, wherein a water draining operation unit of the pump is located on a lower surface of an upper exterior body and can be operated from an inlet. Machine. 2. The washing machine according to claim 1, wherein the operation unit for draining the water can be distinguished from the upper exterior body by a tactile sensation during operation. 3. The washing machine according to claim 1, wherein the operation unit for draining the water is not visible from the inlet. 4. The washing machine according to claim 1, wherein the drainage operation unit and the drainage hole are arranged at substantially the same position. 5. The washing machine according to claim 4, wherein the water discharged from the drain hole can be touched when the operation part for draining is operated.