JPH1119391A - Washing machine with water suction pump - Google Patents

Abstract

PROBLEM TO BE SOLVED: To give a bath water suction pump a function to input a liquid detergent so as to enable a pump to suck bath water and to automatically input a liquid detergent by equipping a nozzle on a delivery pipe line in the delivery side of the bath water suction pump and a pipe for inputting a liquid detergent to be merged into the pipe line at immediate downstream of the nozzle. SOLUTION: When an external water source, e.g. Bath water, is used as washing water, a suction switching valve 14 is connected to a second channel 17 and a water suction pump is operated to suck water. The sucked water is delivered to a delivery pipe 15 to be jetted out through a nozzle in a delivery pipe line 15. At that time, a liquid detergent reached a liquid detergent guide pipe 20 through a detergent inputting valve 19 from a liquid detergent tank 18 is sucked into the delivery pipe line 15 by the negative pressure at around the connection part between the liquid detergent guide pipe 20 and the delivery pipe line 15 and the detergent is mixed with water passed through the nozzle and jutted out to a jetting part, and then poured into a washing tub 6. When tap water is used as washing water, the water is supplied into the washing tub 6 through a water channel 9 from a water supply port 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine, and more particularly to a washing machine with a water suction pump capable of reusing remaining water in a bath and circulating washing water by using a water suction pump.

[0002]

2. Description of the Related Art A washing machine with a so-called bath water pump, which has a built-in water absorption pump and supplies remaining hot water in a bathtub to a washing machine in accordance with an instruction from a control unit, has been put to practical use. Further, a washing machine with a so-called liquid detergent dispensing device having a pump for storing a liquid detergent in a tank and feeding the liquid detergent into the washing machine in accordance with an instruction from an operation unit has been put to practical use.

[0003]

A water absorption pump installed in a conventional washing machine has a function of sucking water from an external water source such as remaining hot water in a bath and feeding the water into the washing machine. The only way to add a liquid detergent injection device to this washing machine is to install a dedicated detergent injection pump.

[0004] It is an object of the present invention to provide a bath water suction pump with a function of introducing a liquid detergent, and to perform bath water absorption and automatic introduction of the liquid detergent with one pump.

[0005]

The gist of the present invention resides in that a nozzle is provided in a discharge pipe on the discharge side of a water suction pump, and a liquid detergent introduction pipe is provided so as to join immediately downstream of the nozzle. According to this, the water discharged from the water suction pump passes through the nozzle and is jetted out, so that the surrounding area becomes negative pressure, the liquid detergent is drawn in from the introduction pipe, mixed with the water jetted out from the nozzle, and enters the washing machine. Is sent.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of the washing machine of the present invention. FIG. 2 is an enlarged view of the suction pump discharge section and the liquid detergent charging section.

In the figure, 6 is a washing tub provided in the main body 1, 5 is a dehydrating tub provided inside the washing tub 6, 4 is a rotating blade mounted inside the dehydrating tub 5, 2 is a bottom of the washing tub 6 A motor 3 provided on the back surface is a clutch for transmitting power from the motor 2 to the dehydration tub 5 and the rotary blade 4 alternatively, and 7 is a lid.

Reference numeral 8 denotes a water supply port provided on the upper portion of the main body 1, which is connected to a water tap via a hose. Reference numeral 9 denotes a first water passage for guiding water supplied from the water supply port 8 to the washing tub 6, and is opened and closed by a water supply valve 10. A drain hose 11 drains washing water from the lower portion of the washing tub 6 to the outside of the main body 1 and guides the washing water to an appropriate drain by opening and closing a drain valve 12. Reference numeral 13 denotes a water suction pump, and 14 denotes a suction switching valve connected to the suction side of the water suction pump 13. Reference numeral 15 denotes a discharge pipe connected to the discharge side of the water suction pump 13, and guides the discharged water to the washing tub 6. 16 is a suction switching valve 1 from the lower part of the washing tub 6
4 is a circulating water passage that guides washing water to the suction side of the water suction pump 13 via the suction pump 4.

Reference numeral 17 denotes a second water passage for guiding an external water source such as bath water to the suction side of the water suction pump 13 via the suction switching valve 14. Reference numeral 18 denotes a liquid detergent tank installed inside or at the top of the main body 1, and is connected to the discharge pipe 15 by a liquid detergent introduction pipe 20 to which a detergent introduction opening / closing valve 19 is connected. Reference numeral 21 denotes a washing machine operation unit, which controls a motor 2, a clutch 3, a water supply valve 10, a drain valve 12, a water suction pump 13, a suction switching valve 14, and a detergent supply opening / closing valve 19 by a signal from the operation unit.

[0010] The suction switching valve 14 is provided with a circulation water passage 16.
Alternatively, the connection between the second water passage 17 and the suction side of the water suction pump 13 can be switched. When an external water source such as bath water is used as washing water, the suction switching valve 14 is connected to the second water passage 17 side, and the water suction pump 13 is operated to suck water. The sucked water is discharged to the discharge pipe 15, passes through the nozzle 15a, and is discharged to the discharge portion 15b.

At this time, the liquid detergent that has reached the liquid detergent introduction pipe 20 through the detergent introduction opening / closing valve 19 opened from the liquid detergent tank 18 has a negative pressure near the connection portion 20a between the liquid detergent introduction pipe 20 and the discharge pipe 15. Because of the pressure, the discharge line 15
The water is then mixed with the water that has passed through the nozzle 15a, is jetted to the jetting portion 15b, and is poured into the washing tub 6.

When tap water is used as washing water, water supplied from the water supply port 8 and guided to the first water passage 9 through the opened water supply valve 10 is injected into the washing tub 6. Is done. After or after storing this water in the washing tub 6, the suction switching valve 14 is switched to the circulation water passage 16 side, and the water suction pump 13 is operated to suck the water. The sucked water is mixed with the liquid detergent in the discharge pipe 15 and poured into the washing tub 6 as described above.

If it is not desired to circulate the water once dropped in the washing tub 6, a water storage section 9a for storing water in the first water passage is provided as shown in FIG. 9
What is necessary is just to connect from a to the suction switching valve 14. With the above structure, an appropriate amount of liquid detergent can be supplied at an arbitrary timing by controlling the detergent supply opening / closing valve 19 and the water suction pump 13.

[0014]

According to the present invention, the bath water suction pump can be provided with a function of automatically introducing a liquid detergent, and a dedicated pump for introducing a liquid detergent can be omitted. Further, since the liquid detergent dissolves in the water before falling into the washing tub, it is possible to quickly obtain a uniform concentration of washing water.

[Brief description of the drawings]

FIG. 1 is a sectional view of a washing machine with a water suction pump.

FIG. 2 is an enlarged view of a water suction pump discharge section and a liquid detergent input section.

FIG. 3 is an enlarged view showing an embodiment of a circulation water passage.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Main body, 13 ... Water absorption pump, 14 ... Suction switching valve, 1
5 discharge pipe, 15a nozzle, 16 circulating water passage, 1
8: Liquid detergent tank, 19: Liquid detergent input opening / closing valve, 20
... liquid detergent introduction tube.

Claims (1)

[Claims] 1. A main body, a washing and dewatering tub having rotating blades,
In a washing machine having a driving mechanism for the rotating wings and the washing and dewatering tub, a water suction pump for sucking water, and an operation unit for controlling them, a nozzle is provided on a discharge pipe on the discharge side of the water suction pump, A liquid detergent introduction pipe is provided immediately downstream of the nozzle so as to merge with the discharge pipe, and from inside the tank, the liquid detergent passing through the liquid detergent introduction pipe via a valve mechanism for switching between opening and closing, the nozzle is passed through the nozzle. A washing machine with a water suction pump, wherein the washing machine is mixed with the liquid that has passed and supplied to the washing machine.