JPS61131798A - 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 [Industrial Field] The present invention relates to a washing machine that saves water and cleans waste water.

[Conventional technology]

Conventionally, as shown in Fig. 2, a washing machine has an agitation source 9 in a washing tub 1, which is filled with washing water, the laundry is put there, and the detergent is added to the washing tub.

The laundry was stirred with an agitator R9 to wash the dirt on the surface of the laundry, and after the dirt on the surface of the laundry was removed, the washing water was directly drained to the outside from the drain port 3.゛Also, rinsing to remove detergent remaining on the surface of the laundry is done by continuously flowing fresh water from the tap into the washing machine (this removes the detergent left behind). [Problems to be Solved] However, with these conventional washing machines, the waste water contains large amounts of surfactants and auxiliary agents contained in the detergent used for washing, which is harmful to lakes and rivers. This causes pollution and has become a major social problem, which requires a solution.Also, large amounts of water are used for rinsing, which is exacerbating water shortages in cities.

Therefore, the present invention overcomes the above-mentioned drawbacks, saves a large amount of water during rinsing, and minimizes the amount of surfactants and auxiliary agents contained in the waste water of washing water, thereby reducing pollution of lakes and rivers. To provide a washing machine that can prevent

[Means for solving problems]

In order to solve the above problems, the present invention provides a structure for circulating washing water during rinsing, and a filter layer for trapping surfactants, auxiliary agents, and dirt in the detergent in the circulation path. .

In addition, the circulation path uses the drainage hose installed in conventional washing machines, and a portion of this hose can be removed.
A multilayer filter layer was formed there. Of course, a pump is provided in the circulation path to circulate the water.

[Effect]

In a washing machine configured as described above, when washing water is circulated through a circulation path during rinsing after washing and passes through a filter section provided in the middle, an interface existing in the washing water is formed. Rinsing can be performed using the same wash water that traps activators, auxiliaries, etc. and purifies the wash water after each a-ring.

This eliminates the need for large amounts of water like the drip type rinse used in conventional washing machines, and also eliminates the need for nitrogen.
The amount of surfactants and auxiliary agents contained in the detergent in the wastewater at the end of the process is significantly reduced.

The above filter part has an adsorption layer using activated carbon to trap nonionic surfactants, spills, and micellar surfactants, and an ion exchange layer to trap metal ions dissolved in water and ionized. do.

In particular, anion exchange JA is used to trap sodium phosphate salts.
I! It is effective to trap phosphoric acid and Na↓ ions by using SiI. [Example] The present invention will be described in detail below with reference to one drawing.

FIG. 1 is a sectional view illustrating the present invention in detail.

1 is likely to be washed. Laundry, washing water, and detergent are put here, and dirt is removed while being agitated by an agitation source 9. 9
A propeller-shaped agitation source is common, but a stirrer that emits ultrasonic waves is also good.

2 is the external frame of the washing machine. 3 is a drain port, and a pump 8 is provided in this part. 4 is a motor that plays the role of opening and closing the valve of the target pump 8 to send out the washing water to the circulation system. 5 is a drainage hose, and a filter part 6 is attached to a part of this hose. The tip of this drainage hose 5 is designed to be inserted into the washing machine when the washing water is returned to the washing machine. By using this structure, there is no need to make any changes to the structure of a conventional washing machine, and it can be realized at a relatively low cost.

Figure 3 is an external view of the present invention.

FIG. 4 is an explanatory diagram of the pump section of the present invention.

A pump installed at the drain port 3 by a motor 4 serves to push out washing water from the drain port by opening and closing a valve 8 by turning the crank 0 up and down. The pump should be as simple as possible, but a rotary type or similar type may also be used.

The fifth vJ is a sectional view of the filter section 6. 6a is an ion exchange layer, and 6b and 6c are adsorption layers of activated carbon layers with different mesochets. 6d is a frame that supports the filter, and 6e is a seal to prevent water from leaking from the filter mounting area. 6f is a screw formed so that it can be removed from the drainage hose 5.

During rinsing, large dirt is trapped in the order of 6c and 6b from the coarser mesh of the adsorption layer. Detergents are also trapped in the adsorption layer. Depending on the type of auxiliary agent, the ion exchange layer 6a traps it by changing the positive or negative ion exchange membrane.

FIG. 6 is a front view of the filter layer. 6a is a filter made of activated carbon or the like, and 6g is a filter frame that supports the filter membrane. 6h is a mounting ζJ support to facilitate the attachment and detachment of the filter layer.

If the filter becomes clogged due to repeated use, replace it with a new one. FIG. 7 is a cross-sectional view of each filter layer. The filter jl16a is firmly supported by the upper and lower projections 6g and 6'i of the filter frame. Also, replacement can be done by simply removing the upper and lower filter frames up and down.

Figure 8 is an external view of the filter part 6.The filter part 6 can be attached to the drain hose 5 with screw fittings 13.The filter part 6 can be removed to clean each layer of the filter part. FIG. 9 shows an embodiment of another filter section.

21 is a mesh basket, and a stirring ball 22 made of a solid material such as cork is placed inside the mesh basket. Outside of this, an adsorption film 23 with activated carbon arranged thereon is provided. FIG. 10 is a sectional view of the filter section. 25 is an outer wall of the filter section. 24 is a defense net 6 When the washing water passes through this area, it stirs the beads 22 so that the washing water hits the adsorption film 23. At this time, dirt and surfactants contained in the washing water are trapped in the adsorption film. The defense net 24 protects the trapped dirt and the like from being removed by the stirring ball 22 again. This filter section is more practical as it allows for a larger flow rate of washing water.

〔Effect of the invention〕

As explained above, the present invention solves the problem of environmental pollution by reducing the amount of detergent used in washing, which has conventionally been drained away, and by circulating the washing water for rinsing.

It is effective in saving water and has great social significance.

[Brief explanation of drawings]

The first figure is a sectional view explaining the present invention in detail, the second figure is an explanatory diagram of a conventional washing machine, and the third figure is an external view of the washing machine of the present invention.
Fig. 4 is an explanatory diagram of the pump section of the present invention, Fig. 5 is a cross-sectional view of the filter section of the present invention, Fig. 6 is a front view of the filter layer of the present invention, and the upper figure is a cross-section of the filter layer of the present invention. The assembled drawing and FIG. 8 are external views of the filter section of the present invention. FIG. 9 is an explanatory diagram of another embodiment of the filter section of the present invention. FIG. 10 is a sectional view of the filter section shown in FIG. 9. 1. Washing 3. Drain port 5. Drainage hose 6. Part of the filter 9. Stirring source 21. Mesocie basket 22. Stirring ball 23. At least the adsorption film

Claims (4)

[Claims] (1) A washing machine in which an agitation source such as an ultrasonic generator or a propeller is installed in the laundry sink, and a circulation path is provided for circulating washing water from the drain of the laundry sink to the laundry sink via a pump, A washing machine characterized in that a drainage hose is used as a part of the insulation circulation path, and a removable filter part is provided in a part of the insulation drainage hose. (2) The washing machine according to claim 1, characterized in that the filter section has multiple stages including an activated carbon layer that traps dirt and detergent, and an ion exchange layer that traps ionized auxiliary agents. Machine. (3) A washing machine according to claims 1 and 2, characterized in that each layer of the filter section is independently removable. (4) The filter section is a filter in which a large number of solid substances larger than the mesh are placed in a mesh cage, and a film of activated carbon, ion exchange, etc. is provided on a part of the outer periphery of the cage. A washing machine according to claims 1, 2, and 3.