JPH10313A - Bath water circulate and purifying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently prevent the clogging of the water passage holes of a strainer by mounting washing members for removing adhered impurities by moving and coming into contact with the surfaces of strainers at the time of rotation of a filter case at the water flow passage side surfaces of these strainers. SOLUTION: The filter case 9 is constituted by freely rotatably and horizontally installing a hollow cylindrical case and is provided with a stirring means composed of gears 22, 22 for rotating the filter case 9 by rotation of a motor. On the other hand, the washing member 26, 26 composed of chains made of stainless steels, etc., supported movably at both ends by means of screws 24, 25 so as to have plays are mounted at the opposite surfaces of the strainers 15, 16 facing an inflow chamber 19 or outflow chamber 20. As a result, the motor is operated to rotate the filter case 9, by which the filter media in the filter case 9 are stirred. At the time of washing, the washing members 26, 26 move while coming into contact with the surfaces of the strainers 15, 16 according to the rotation of the filter case 9, thereby peeling and removing the fur, etc., sticking to the contact parts.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bath water circulation purifying apparatus for circulating bath water in a bathtub by a circulation pump in a circulation flow path, and filtering and purifying the water by a filter or the like installed in the circulation flow path.

[0002]

2. Description of the Related Art Purifying bath water in a bathtub for general household use,
As a device which can be used for a long time, for example, as shown in JP-A-5-38405, after water in a bathtub is sucked up by a circulation pump and relatively large substances such as hair are removed by a filter 2, Organic substances and the like are decomposed by the purifying material 6 in the purifier 7.

On the other hand, in the above-mentioned purifier, bath water is supplied to the purifying material through the fountain holes 16 of the lattice plate 17, but the surface of the lattice plate that does not come into contact with the purifying material due to long-time use is provided. There is a problem that hair or descaling that has passed through the filter adheres and the fountain hole is likely to be clogged.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention prevents clogging of a water passage hole of a strainer mounted in a filtration case containing a filter medium, thereby preventing a reduction in the amount of circulating water and a decrease in filtration efficiency due to the clogging. The purpose is to do.

[0005]

According to the present invention, bath water in a bathtub is sucked up by a circulation pump, circulated in a circulation passage, returned to the bathtub, and stored in a filtration case provided in the middle of the circulation passage. Filtering by a granular filter medium, and partitioning the inside of the filter case into a storage chamber containing a water passage and a filter medium by a strainer having a water hole, and rotating the filter case regularly or irregularly to wash the filter medium. A cleaning member is attached to the surface of the strainer on the side of the water passage so as to move during the rotation of the filtration case and come into contact with the surface of the strainer to remove impurities attached to the portion.

According to the present invention, the cleaning member is constituted by a metal chain having at least one end fixed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described first with reference to FIG.
Is sucked up from the water absorption pipe 5 by the circulation pump 4 and circulated.
A circulation flow path 7 for fountain into the bathtub 2 from a water discharge pipe 6, a heater 8 mounted on the circulation flow path upstream of the circulation pump 4, and a filtration case 9 also connected downstream of the circulation pump 4; Sterilization case 10 connected downstream of this filtration case
And a switching valve 11 connected downstream of the sterilization case, and a drain passage 12 branched from the switching valve.

The heater 8 is constituted by a sheath heater (not shown) or the like, and the bath water sucked up from the bathtub 2 by the water suction pipe 5 is kept at a predetermined temperature suitable for bathing. A germicidal lamp 13 such as a mercury lamp that generates ultraviolet light having a wavelength of about 185 nm or 250 nm is housed therein, and the bath water is similarly sterilized.

The filter case 9 is constructed by rotatably arranging a hollow cylindrical case, and partitioning the inside of the case with strainers 15 and 16 having a large number of water holes 14... A storage room 18 containing a large number of granular filter media 17 having a specific gravity of about 1.3, which is made of ceramic balls or sunstone mainly composed of barley stone, is formed between them.

As shown in FIG. 2, the filtration case 9 defines an inflow chamber 19 and an outflow chamber 20 outside the strainers 15 and 16, and one side surface of the inflow chamber 19 is connected to the circulation passage. 7 is connected downstream of the circulation pump 4, and one side surface of the outflow chamber 20 is also connected upstream of the sterilization case 10.

As a result, the bath water 3 sucked up by the circulating pump 4 flows into the inflow chamber 19 located above the filtration case 9 and then passes through the water holes 14 of the strainer 15 and is stored in the storage chamber 18. After the fats are adsorbed and removed while passing through the gap between the filter media 17 and the like, the oil flows out from one side surface of the outflow chamber 20 through the water holes 14 and the like of the strainer 16. .

The filter case 9 includes a motor 21 and gears 22, 22 that rotate the filter case 9 by rotation of the motor.
The motor 21 and the like are controlled by the control circuit 23.

On the other hand, as shown in FIG. 3, the strainers 15 and 16 are movable on the opposite surface to the inflow chamber 19 or the outflow chamber 20 with both ends having play by screws 24 and 25. Cleaning members 26, 26 composed of supported stainless steel chains
Is installed.

Thus, the motor 21 is operated to rotate the filter case 9, and when the filter media 17 in the case are agitated for cleaning, the cleaning member 2 is rotated in accordance with the rotation of the filter case 9.
6 and 26 move while being in contact with the surfaces of the strainers 15 and 16, and peel off scales and the like adhering to the portions.

In the above embodiment, both ends of the cleaning members 26, 26 are supported by the screws 24, 24. For example, only the upstream ends of the water flows of the inflow chamber 19 and the outflow chamber 20 are supported, and the cleaning members 26, 26 are supported. If the thickness of the member is set to be at least half of the maximum height in the inflow chamber 19 and the outflow chamber 20, the cleaning members 26, 26 do not overlap in the middle, and the components of the screws 24, 24 are not overlapped. The cost can be reduced by reducing the number of points.

In the above embodiment, the cleaning members 26, 26 are formed of metal chains, and the upper and lower surfaces thereof are formed with flat surfaces 27, 27 by cutting. However, abrasion-resistant hard resin, wiper, etc. Even in the case of a chain, a plurality of rubber materials may be arranged in each of the inflow chamber 19 and the outflow chamber 20, and the supporting position thereof is not limited to the strainers 15 and 16. 9 may be used.

The control circuit 23 has a built-in 24-hour timer, for example, stops the circulating pump 4 once a week, for example, for 5 to 10 minutes, and turns off the sheath heater of the heater 8 and the sterilizing lamp 13. On the other hand, the motor 21 is energized to rotate the filter case 9, and the filter media 17 in the case are agitated to separate bacterial biofilms and the like adhered to the surfaces thereof by friction due to contact between the filter media. Then motor 21
After the rotation of the pump is stopped and the switching valve 11 is switched to the drain passage 12, the circulation pump 4 is rotated for a predetermined time (for example, two minutes), and at the same time, the motor 21 is rotated to suck up the bath water in the bathtub 2 to filter the filter case 9 Then, the biofilm of bacteria and the like accumulated in the filtration case 9 are discharged to the outside through the drain passage 12.

In the above embodiment, the filter medium 17 is periodically cleaned by a timer. For example, the flow rate sensor detects the amount of circulating water, and when the amount of circulating water falls below a predetermined flow rate, the cleaning is performed. The operation may be performed, or the cleaning operation may be performed according to the degree of contamination by detecting dirt from the transmittance of the bath water 3 or the like.

During the cleaning operation of the filter media 17, the rotation of the filter case 9 causes the cleaning members 26, 26 to be moved by the strainers 15, 26.
It moves randomly while contacting the surface of 16 to remove scales and the like attached to the portion.

The filter case 9 may be rotated in a fixed direction or may be appropriately inverted.

[0021]

According to the structure of the present invention, the descaling and the like adhered to the surface of the strainer are removed by the cleaning member by utilizing the cleaning operation of the filter medium by rotating the filtration case without changing the design of the existing filtration case. As a result, it is possible to reliably prevent a reduction in filtration efficiency and a decrease in the amount of circulating water due to clogging of the strainer.

Further, according to the present invention, since the cleaning member is formed of a metal chain, descaling and the like attached to the strainer can be reliably removed with a relatively simple configuration.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention.

FIG. 2 is a side view of the filter case, which is partially broken.

FIG. 3 is a plan view of a main part of the same.

[Explanation of symbols]

 2 Bathtub 3 Bath water 4 Circulation pump 7 Circulation channel 9 Filtration case 15 Strainer 16 Strainer 17 Filter media 18 Storage room 19 Inflow room 20 Outflow room 26 Cleaning material

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Toshikatsu Fukuda 3-201 Minamiyoshikata, Tottori City, Tottori Prefecture Inside Sanyo Electric Co., Ltd. (72) Inventor Teruo Okuda 3-201 Minamiyoshikata, Tottori City, Tottori Sanyo Electric Tottori Inside the corporation

Claims (2)

[Claims] 1. A bath water in a bathtub is sucked up by a circulation pump, circulated in a circulation passage, returned to the bathtub, and filtered by a particulate filter medium stored in a filtration case provided in the middle of the circulation passage. The filter case is further divided into a water passage and a storage chamber for storing the filter medium by a strainer having a water hole in the filter case, and the filter case is rotated regularly or irregularly to wash the filter medium. A cleaning device for cleaning and circulating bath water, comprising a cleaning member attached to a surface on a water channel side for removing impurities adhering to the surface of the strainer by moving during rotation of the filter case and coming into contact with the surface of the strainer. 2. The bath water circulation purifying apparatus according to claim 1, wherein the cleaning member is constituted by a metal chain having at least one end fixed.