JP2001132056A - Washing water jet nozzle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing water nozzle which is safe for human body on a sanitary washing stool seat, capable of discharging clean washing water by completely removing existing various germs and fur and the like in a water- saving type supply system from water supply pipe to a washing water jet nozzle. SOLUTION: One of the features of this nozzle is the presence of a filter, consisted of porous films inside a washing water jet nozzle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sanitary washing toilet seat with a nozzle capable of jetting clean washing water containing no germs or scale.

[0002]

2. Description of the Related Art In recent years, sanitary washing toilet seats with washing nozzles have become widespread. The washing water needs to be clean water for that purpose. The sanitary washing toilet seat has a hot water tank, a water pipe connecting the hot water tank and the wash water jet nozzle, and a wash water flow system consisting of the wash water jet nozzle. Since the toilet is always kept at high temperature and high humidity by a toilet seat or the like, the environment is liable to generate germs and scale.

[0003] As a countermeasure against this, hitherto, a medicine has been put into a hot water tank (Japanese Patent Application Laid-Open No. Sho 60-10030), an antibacterial filter has been provided at the outlet of the hot water tank (Japanese Patent Application Laid-Open No. Hei 8-19490), After a certain period of unused time, the water in the hot water tank is drained (Japanese Unexamined Patent Publication No.
No. 3440) measures have been taken.

[0004]

However, the washing water containing the chemical has a problem of harm to the human body, and an antibacterial filter is provided at the outlet of the hot water tank, or the hot water is used after a certain period of unused time. In response to measures such as draining water in the tank, water remaining in the washing water flow system from the hot water tank to the washing water jet nozzle was not sterilized and was unsanitary. The present invention solves the above-mentioned conventional problems, is safe for the human body, is water-saving, and removes various germs, scales, and the like that are present in the entire water passage from the water supply pipe to the washing water ejection nozzle. It is another object of the present invention to provide a washing water jet nozzle for a sanitary washing toilet seat that discharges clean washing water.

[0005]

SUMMARY OF THE INVENTION The present invention provides a novel washing water jet nozzle for achieving the above object. That is, the present invention provides (1)
The washing water jet nozzle of the sanitary washing toilet seat, wherein a filter made of a porous membrane is mounted, (2) The nozzle according to the above (1), wherein the nozzle comprises a nozzle cylinder and a removable nozzle tip. (3) The washing water ejection nozzle according to the above (1), in which a filter made of a porous film is housed inside the nozzle, and (4) the washing water discharge port at the tip of the nozzle is covered with the filter. The present invention relates to the washing water jet nozzle according to the above (1). Hereinafter, the present invention will be described with reference to the drawings.

In recent years, sanitary washing toilet seats that have become widespread are:
It consists of a casing, a toilet seat, a toilet lid, and a washing control panel, and a water flow system is incorporated inside the casing. FIG. 1 is an explanatory view showing an example of a water flow system section up to a washing water jet nozzle in a sanitary washing toilet seat. In FIG. 1, reference numeral 1 denotes a washing water jet nozzle, 2 denotes a water distribution pipe, 3 denotes a flow control valve, 4 denotes a hot water tank, 5 denotes a heater, 6 denotes a water supply pipe, and 7 denotes a pump. Water is supplied to the water supply pipe 6 from a water supply pipe,
Water is supplied to the hot water tank 4 by the pump 7. The hot water heated by the heater 5 of the hot water tank 4 is
To the washing water jet nozzle 1 through the flow control valve 3. The washing water jet nozzle 1 according to the present invention jets washing water adjusted to an appropriate temperature in the hot water tank 4 and adjusted to an appropriate flow rate by the flow control valve 3. The nozzle is composed of a water passage and a washing water discharge port, and a cylindrical one is widely used.

FIG. 2 is a schematic view showing an embodiment of a water passage inside the cleaning water jet nozzle of the present invention. The cleaning water jet nozzle 1 is composed of a nozzle cylinder 8 and a nozzle tip 9, and a hollow water passage 11 exists inside the nozzle cylinder 8. The water passage 11 communicates with the water passage 13 at the nozzle tip 9. A filter made of a porous membrane is housed in the water passage 11, and the washing water passing through the water passage 11 is used to remove various bacteria, scale, etc. by the filter.
The cleaning water is discharged from the cleaning water discharge port 10 through the passage. The filters referred to in the present invention are a single filter, a filter cartridge using the single filter, and a half filter cartridge using the single filter.

The single-piece filter is a porous membrane such as a hollow fiber or a flat membrane having a pore diameter suitable for removing various bacteria and scale. Examples of the material of the porous film include organic films such as polyethylene, polypropylene, 4-fluoroethylene, cellulose acetate, polyacrylonitrile, polyimide, polysulfone, and polyethersulfone; inorganic films such as aluminum oxide, zirconium oxide, and titanium oxide; and stainless steel. For example, a metal film, a glass film, or the like is used.

As a single-piece filter having a preferable pore diameter, a microfiltration membrane, an ultrafiltration membrane and the like correspond to this. Microfiltration membranes have a pore size of about 0.01 μm to 10 μm and capture substances larger than this pore size.They are mainly used for solid-liquid separation to remove bacteria, fine particles, dust, etc. in liquids and gases. is there. Ultrafiltration membranes can further block smaller molecular weight thousands to hundreds of thousands of polymeric and colloidal materials.

[0010] These films are subjected to processing such as bending and winding if necessary, and are filled into the cleaning water jet nozzle 1. The nozzle equipped with the filter may be a nozzle provided with a flat membrane filter so as to cover the washing water discharge port at the nozzle tip from the outside, or a nozzle covered with a tubular membrane filter. FIG. 3 shows an embodiment of the filter cartridge of the present invention using a single filter. The filter cartridge 14 is composed of a hard material container 16 filled with a single filter 15 and is used by being mounted inside the washing water jet nozzle 1. Hard material container 16
The hot water supplied from the water pipe 2 is supplied to the single filter 1
5, the opening 17 for supplying to the primary side, and the single filter 1
5 is provided with an opening 18 for sending filtered water obtained from the secondary side to the washing water discharge port 10. Hollow fiber type, flat membrane type, pleated type,
There are spiral type and tube type.

FIG. 2 shows an embodiment of a half-filter cartridge using a single-piece filter 15. The half-filter cartridge 19 is configured such that the single-piece filter 15 is not filled in the hard material container, but is mounted inside the nozzle cylinder 8 and fixed at the bonding portion 20 with the nozzle tip 9, thereby forming the single-piece filter 15. 15 has a structure in which warm water supplied to the primary side and filtered water obtained from the secondary side do not mix. An opening 21 for sending filtered water to the washing water discharge port 10 is provided on the secondary side.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION

[0013]

Embodiment 1 A washing water jet nozzle as shown in FIG. 2 was manufactured. The cleaning water jet nozzle 1 includes a nozzle cylinder 8 and a removable nozzle tip 9, and the nozzle tip 9 is provided with a washing water discharge port 10. The interior of the nozzle cylinder 8 is a water passage 11, and is partitioned by a partition wall 12 into two chambers, an anal washing water passage 11 a and a bidet washing water passage 11 b. The nozzle tip 9 has two independent passages, each of which communicates with an anal wash water outlet 10a and a bidet wash water outlet 10b. The washing water supplied from the water distribution pipe 2 is divided into two and each of the water passages 11a, 1
1b, a different washing water outlet 10 of the nozzle tip 9
It is ejected from a and 10b.

Each of the water passages 11a and 11b contains a filter made of a porous membrane. As the filter, a half-filter cartridge was used in which a plurality of hollow fiber membranes were folded in a loop and bundled, and the opening 21 of the hollow fiber was fixed to the nozzle cylinder 8 with an adhesive 20 using a polyurethane resin. This washing water jet nozzle has a feature that the washing water discharge port 10 is easy to clean because the nozzle cylinder and the tip are removable.

[0015]

Example 2 A washing water jet nozzle having the same structure as that of Example 1 was prepared except that a filter was housed at the nozzle tip instead of the nozzle cylinder, and the entire nozzle tip was configured as a disposable cartridge. FIG. 4 shows a schematic sectional view thereof. That is, the cleaning nozzle is a nozzle cylinder 8 and
It is constituted by a nozzle tip 9 incorporating a filter 22, and the nozzle tip 9 has a structure that can be easily removed from the cylinder 8. The hollow water passage 11 inside the nozzle cylinder 8 is connected to the water passage 13 at the nozzle tip 9 having a filter 22 built therein. Is removed,
It is discharged from the cleaning water discharge port 10 of the nozzle tip 9. Since the entire nozzle tip 9 incorporating the cartridge is a disposable cartridge, replacement is easy and more sanitary.

[0016]

The washing jet nozzle of the sanitary washing toilet seat according to the present invention is for purifying washing water by a filter attached to the nozzle, and has the following effects. Bacteria and scale that easily propagate in the water passage of the sanitary washing toilet seat that is difficult to clean due to high temperature and humidity can be removed by the filter. Thus, a person with low resistance, such as a sick person, an elderly person, a postpartum woman, or a person with sensitive skin, can wash with clean water without having to worry about hygiene.

Since the filter is attached to the washing water jet nozzle, which is the final path of the water flowing system, the filter is installed in the hot water tank, the water distribution pipe from the hot water tank to the washing water jet nozzle, and the water jet system in the washing water jet nozzle. Bacteria and scale can be removed. When a filter is built in the nozzle tip portion and these are entirely disposable cartridges, it is possible to obtain a more clean and easy-to-use washing water jet nozzle which is more sanitary and easy to replace. It is possible to purify the washing water without administering a medicine or draining hot water kept at a high temperature for a long time, and it is possible to provide a safe and water-saving system for the human body. .

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a water flow system section up to a washing water jet nozzle of a sanitary washing toilet seat of the present invention.

FIG. 2 is a schematic sectional view showing an example of a cleaning water jet nozzle of the present invention.

FIG. 3 is a schematic sectional view showing an example of a filter cartridge used in the present invention.

FIG. 4 is a schematic cross-sectional view showing another example of the cleaning water jet nozzle according to the present invention.

[Explanation of symbols]

 1 ······························································································································ Cleaning water outlet 13 Water passage 14 Filter cartridge 15 Single filter 19 Filter cartridge 22 Filter

Claims (2)

[Claims] 1. A washing water jet nozzle for a sanitary washing toilet seat, wherein a filter made of a porous membrane is mounted on a nozzle portion. 2. The cleaning water jet nozzle according to claim 1, wherein a filter made of a porous film is housed inside the nozzle.