JP2017058100A - Household circulation warm bath - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a household circulation warm bath for restricting propagation of fungus in bath hot water and improving safety in sanitation.SOLUTION: This invention relates to a household circulation warm bath operated in such a way that a non-woven filter 10 is wound around an outer peripheral surface of a porous cylinder 9 to cause a specified flowing direction to be applied as a forward flow, sebum and waste in bath hot water are physically filtered by the non-woven fabric filter 10, adhered filtering residuals are peeled off and removed by pressure reversing flow from an opposite side of the transmitted adhesion surface under reversing the flowing direction and discharged out of a machine without changing a rotating direction of a circulation pump 37 so as to perform a frequent reverse flow cleaning to prevent hot bed where fungus grow from being formed.SELECTED DRAWING: Figure 3

Description

The present invention relates to a household circulating bath equipped with a filter for purifying bath water.

As a prior art of a domestic circulating warm bath related to the present invention, there is known one that replaces a thread-wound filter at a filtration function site and cleans a nonwoven fabric filter (see Patent Document 1).

Japanese Patent No. 4399512

In patent document 1, it is the purification system which does not propagate fungi by taking out and washing the filtration filter which sebum and wastes became filtration residue in every 3 days or less every day.
However, there are cases in which even filter cleaning once every three days from day to day is troublesome, cannot be performed, or cannot be done with aging, which is a problem that must be solved.

As long as the household circulating bath is used, it is not possible to omit the work of cleaning the filtration residue adhering to the filter.

According to the present invention, the troublesomeness is reduced by the method of backwashing the filtration filter, so that the quality of the bath water does not deteriorate even if the circulation filtration is continued for a long time, and it is possible to cope with the aging of the user. It is a thing.

The basic structure of a household circulating bath is built to perform the circulation function of sucking and filtering bath water from the water inlet by the rotational force of the motor pump and heating it with a heating heater to return it from the outlet to the bathtub. ing. A general method for making the water flow and water flow direction forward and reverse the flow is to temporarily stop the rotation of the motor pump and then reverse the direction of rotation. However, in the present invention, the forward flow is instantaneously converted into the reverse flow without stopping the motor pump and changing the rotation.

The present invention improves the filtration efficiency of impurities in the bath water by circulating the entire amount of 250 to 300 liters of bath water in a general household bath and forcibly permeating the filter through the filtration filter. It is an object of the present invention to provide a home circulating warm bath that employs a back cleaning method in which a user does not have to clean a filter during processing.

The household circulating bath of the present invention has a bathtub and a filter for filtering the bath water circulating from the water inlet to the water outlet in the bathtub, and filters the bath water flowing from the tank inlet to the tank outlet. A filtration tank, a circulation pump that sucks bath water from the pump suction port and sends it to the pump discharge port, a heating heater that heats the bath water flowing from the heater inlet to the heater outlet, a drain discharge port that discharges the bath water, A reversing valve for switching the bath flow path between the first and second switching states is provided, and when the reversing valve is in the first switching state, from the bathtub, the reversing valve, the tank inlet of the filtration tank, the tank 1st flow path (forward flow) which returns to a bathtub through an outlet, a reverse valve, a pump suction port of a circulation pump, a pump discharge port, a heater inlet of a heating heater, a heater outlet, a reverse valve in order And when the reversing valve is in the second switching state, from the bathtub, the reversing valve, the tank outlet of the filtration tank, the tank inlet, the reverse valve, the pump inlet of the circulation pump, the pump outlet, the heating heater A second flow path (back flow) is formed through the heater inlet, the heater outlet, and the reversing valve in this order to reach the drain discharge port.
In addition, in the household circulating bath of the present invention, a filtration with a non-work cloth filter in which activated carbon is wrapped around a perforated cylinder provided with elastic packing at the top and bottom and slightly longer than the depth of the filtration tank. When the filter was inserted and the filter tank lid was closed tightly, the upper and lower elastic packings were in a state of being crushed, so that the entire amount of bath water flowing into the filter tank was forced to permeate the filter.

As a result, filtration residue adheres to the filtration filter from which impurities in the bath water have been filtered off. Therefore, if the washing is neglected, clogging will occur and the permeation will worsen, so the filtration residue attached to the filtration filter with the flow pressure from the reverse direction will be reversed for a certain time every day or once every few days. After peeling off and discharging to the outside of the bath, the filter is restored to the forward flow state again. This prevents the user from having to clean or replace the filter over a long period of time.

In order to have such a structure and function, it is necessary to devise a reverse valve that can instantaneously reverse only the flow direction without stopping the operation of the circulation pump.

The reversing valve structure for switching the flow direction has a built-in reverse flow switching board with a forward flow path and a reverse flow path inside. The reverse flow switching board is turned to a specified position and the circulation pump is still in rotation. The reverse flow is realized by switching the forward flow path to the reverse flow path.

The present invention eliminates the need for daily bath washing and bathing, and in addition to the convenience of being able to take a bath 24 hours a day, bathing causes blood vessels to swell and a lot of warmed blood flows to carry oxygen and nutrients to cells throughout the body. Promote. And the thermal shock that you experience in bathing increases the heat shock protein in your body, boosts your self-healing power and immunity, and creates the foundation of your health. For this reason, spreading as a health promotion device will contribute to the health and longevity of the middle-aged and elderly. Therefore, by reducing the number of times the filter filter is washed in Patent Document 1 to improve convenience and expanding the use to middle-aged and older households, it not only extends the healthy life of the elderly, but also consumes it in daily bathing. It suppresses the amount of CO2 emitted from fossil fuels and exerts a great effect in preventing global warming.

State diagram of the household circulating warm bath of the present invention attached to the upper edge corner of the bath Structural diagram of a household circulating bath of the present invention (A) Bath water channel diagram during forward flow, (b) Bath water channel diagram during reverse flow Diagram showing unemployed cloth filter Diagram showing a perforated cylinder The figure which shows the state which wound the unemployed cloth filter on the outer side of a porous cylinder (it is called a filtration filter) Relationship diagram between filtration tank and filtration filter Diagram showing the forward flow direction inside the filtration tank Diagram showing the reverse flow direction inside the filtration tank (A) Forward flow path diagram in the reverse rotation valve, (b) Reverse flow path diagram after rotation of the reverse rotation switching board in the reverse rotation valve.

Hereinafter, the details of the present invention will be described with reference to the drawings. It should be noted that the numerical values such as dimensions shown in the embodiments are merely examples, and do not limit the present invention.

As shown in FIG. 1, a home-installed circulation warm bath (hereinafter also referred to as a main body) of a bathroom type is fixedly installed at the corner of the upper edge of a bathtub 1 containing bath water 2. In the bathtub 1, there are provided a water inlet 3 for sucking up the bath water 2 and a water outlet 4 for returning the circulated and filtered bath water 2 to the bathtub 1.

FIG. 2 is a structural diagram in which a filtration tank 6 in which a filtration filter 8 in which a non-work cloth filter 10 is wound around a porous cylinder 9 of the present invention is inserted, a reversing valve 16, a heating heater 40, and a circulation pump 37 are arranged.

As shown in FIGS. 3 (a) and 10 (a), when the filtration tank lid 7 is closed until the liquid tightness can be maintained, the stainless steel porous cylinder 9 covered with the upper elastic packing 13 and the lower elastic packing 14 at both ends is formed. The filtration filter 8 wrapped around the unwoven cloth filter 10 is strongly squeezed, and the bath water sucked up from the water suction port 3 flows from the first valve introduction port 19 to the reverse flow switching board 18 in the reversing valve 16. It flows into the filtration tank 6 from the tank inlet 5 via the first valve outlet 20 through the path A′-B′28, but there is no clearance to escape and the entire amount passes through the unemployed cloth filter 10 and is porous. It is drawn into the tube 9. At this time, the sebum and waste substances contained in the hot water are filtered, and the bath water having increased transparency is transferred from the tank outlet 15 at the bottom of the filtration tank 6 through the second valve inlet 21 to the reverse flow switching board in the reversing valve 16. 18 flows into the second valve outlet 22 through the flow path C′-D ′ 29 provided in the pipe 18, is drawn into the circulation pump 37 from the pump water inlet 36, is accelerated by the rotary blades, exits the pump outlet 38, and enters the heater inlet. The third valve inlet 23 connected to the heater outlet 41 is sent from the heater 39 to the warming heater 40 and passes through the flow path E′-F ′ 30 provided in the reverse flow switching board 18 of the reversing valve 16. The state of returning to the bathtub 1 from the water outlet 4 in the bathtub 1 through the valve outlet 24 is a normal operation forward flow (first flow path) and corresponds to the first rotation position of the reverse flow switching board 18. doing. Here, the water inlet 3 and the first valve inlet 19, the water outlet 4 and the third valve outlet 24, the tank inlet 5 and the first valve outlet 20, the tank outlet 15 and the second valve inlet 21, the pump The suction port 36 and the second valve outlet port 22, and the heater outlet 41 and the third valve inlet port 23 are connected to each other by a hose.

As shown in FIGS. 3B and 10B, when the reverse flow switching board 18 in the reversing valve 16 is turned to the designated position (second rotational position), the first valve provided in the valve body 17 is introduced. The partial flow path G32 provided in the port 19 and the reverse flow switching board 18 and the second valve introduction port 21 are joined, so that the bath water from the water intake port 3 flows through this path in the direction opposite to the forward flow and the bottom of the filtration tank 6. It flows back from the tank outlet 15 located at the bottom, and permeates with reverse pressure from the inside of the nonwoven fabric filter 10 wound around the outer peripheral surface of the porous tube 9. At this time, the filtration residue adhered by the forward flow is pushed off and flows out from the tank inlet 5. The bath water in which the filtration residue is mixed is a second valve that joins the reverse flow partial path J33 that branches from the flow path E′-F ′ 30 provided in the reverse flow switching board 18 that is joined to the first valve outlet 20. A partial flow for reverse flow that passes through the route of the outlet port 22 and passes through the circulation pump 37 and the heating heater 40 and branches from the flow path C′-D ′ 29 provided in the third valve introduction port 23 and the reverse flow switching board 18. It flows into the path joined with I34 and is discharged out of the main body through the drain outlet 27 via the path joined with the opening D 'of the flow path C'-D'29. This state is a backflow (second flow path) during backwashing.

The reversing valve 16 has a slight amount of residue that is filtered depending on the number of bathers, the number of times of bathing, and the age of the bather. Perform cleaning.

At the end of the backflow operation time, when the backflow switching panel 18 is turned back to the original position (first rotation position) from the specified position (second rotation position), it rejoins the forward flow path and the circulation returns to the forward flow. To do.

The non-woven fabric filter 10 shown in FIG. 4 sews a tape 11 having a hook-like surface and a tape 12 having a loop-like surface at both the left and right ends of an unemployed fabric, and winds or removes the outer periphery of the porous tube 9 with one touch. I was able to do.
The non-woven filter 10 filters and removes sebum and waste products when bath water passes through the filter.

As shown in FIG. 5, the perforated cylinder 9 is a cylinder in which holes of a staggered lattice shape having a diameter of 6 cm and a length of 24 cm are formed. The total length of the elastic packings 13 and 14 attached to both ends is 25.5 cm. To do.

FIG. 6 shows a filter obtained by integrating the nonwoven fabric filter 10 shown in FIG.

In FIG. 7, when the filtration filter 8 is inserted into the filtration tank 6 and the filtration tank lid 7 is firmly tightened, the filtration filter 8 is strongly sandwiched from above and below, and the upper elastic packing 13 forms a dome-like curve inside the lid 7. The peripheral edge portion of the lower elastic packing 14 is pressed against the bottom dome curve of the filtration tank 6, and the entire amount of bath water passes through the filtration filter 8.

FIG. 8 shows the flow of the bath water in the filtration tank 6 during the forward flow operation in which all of the bath water flowing in from the tank inlet 5 permeates through the nonwoven fabric filter 10 and filters out impurities that are mixed and melted to return to the bathtub 1. It is shown.

FIG. 9 shows the bath water in a reverse flow state in which the flow direction of the bath water is reversed due to the rotation of the reverse flow switching board 18 provided in the reversing valve 16 and the filtration residue adhering from the back side of the filtration filter 8 is pushed away. It shows the flow.

The present invention devises the reversing valve 16 that instantaneously switches the circulation pump 37 from the forward flow direction to the reverse flow direction while the circulation pump 37 remains in an operating state. The reversing valve 16 has seven pipe ports that function to inflow, outflow, and discharge of hot water on the outer circumferential side surface of the bubble body 17 so as to open to the inner circumferential side surface. Thus, a cylindrical reverse flow switching board 18 having a rotating outer circumferential side surface is built in.

FIG. 10A is a forward flow path diagram inside the reversing valve 16. The first valve introduction port 19, the second valve introduction port 21, and the third valve introduction port 23 (summary) provided on the outer circumferential side surface of the valve body 17. And the first valve outlet 20, the second valve outlet 22, the third valve outlet 24 (collectively referred to as the valve outlet 26), and the drain outlet 27 respectively. , Openings A, C, E, B, D, F, H facing the outer circumferential side surface, and a flow path A′-B′28, a flow path C′-D′29 provided in the backflow switching board 18, The joints with the openings A ′, B ′, C ′, D ′, E ′, F ′ at both ends of the flow paths E′-F′30 are AA ′, BB ′, CC ′, DD ′, EE ′, and FF ′, and these openings are in communication with each other. Here, the flow path A′-B ′ 28, the flow path C′-D ′ 29, and the flow path E′-F ′ 30 are collectively referred to as a flow path 31.

The sucked bath water passes from the first valve introduction port 19 of the reversing valve 16 through the flow path A′-B ′ 28 provided in the reverse flow switching panel 18, passes through the first valve outlet 20, and enters the tank inlet 5. From the tank outlet 15 through the second valve inlet 21 through the flow path C′-D ′ 29 provided in the reverse flow switching board 18. The third valve introduction port 23 that exits the valve outlet 22 and is accelerated in the circulation pump 37 from the pump inlet 36, exits the pump outlet 38, enters the warming heater 40 from the heater inlet 39, and is connected to the heater outlet 41. Through the flow path E′-F ′ 30 provided in the backflow switching board 18, the third valve outlet 24, and the reflux from the water outlet 4 in the bathtub 1. Forward flow corresponding to the rotational position of It shows a road (first flow path).

FIG. 10B is a reverse flow path diagram inside the reversing valve 16, and the first valve introduction port 19, the second valve introduction port 21, the third valve introduction port 23, the first valve introduction port 23 provided on the outer circumferential side surface of the valve body 17. Openings A, C, E, B, D, F facing the outer circumferential side surfaces of the backflow switching board 18 of the 1 valve outlet 20, the second valve outlet 22, the third valve outlet 24, and the drain outlet 27, respectively. , H and the opening of the flow path 31 provided in the reverse flow switching board 18 are AG, BE ′, CG ′, DJ, EI, FA ′, H −D ′, and these openings are in communication with each other. On the other hand, at this time, the openings B ′, C ′, and F ′ of the flow path 31 are closed by the inner circumferential side surface of the valve body 17.

The sucked bath water is rotated by the backflow switching board 18 in the reversing valve 16, the opening A of the first valve introduction port 19, the opening G of the backflow partial path G32 provided in the backflow switching board 18, and the second The gas flows back into the perforated tube 9 from the tank outlet 15 at the bottom of the filtration tank 6 through the backflow path where the opening C of the bubble inlet 21 and the opening G ′ of the backflow partial path G32 are joined. The porous cylinder 9 fitted with the upper elastic packing 13 and the lower elastic packing 14 is strongly compressed from above and below in the filtration tank 6, and the bath water that has flowed in is wound around the outer peripheral surface of the porous cylinder 9 by the backflow pressure. The filter residue adhering from the back side of the unwoven cloth filter 10 is pushed through and permeated, and the flow path E′-F provided in the reverse flow switching board 18 and the opening B of the first valve outlet 20 from the tank inlet 5. Pump suction port from opening D of second valve outlet port 22 joined with opening J of backflow partial passage J33 that branches from flow path E'-F'30 through a path joined with '30 opening E ' 36 is sucked into the circulation pump 37, accelerated by the rotary blades, exits from the pump discharge port 38, enters the warming heater 40 through the heater inlet 39, and is heated from the heater outlet 41 to the opening E of the third valve inlet 23. Reverse flow switching in contact The bath water containing the filtration residue is drained through the opening D 'of the flow path C'-D'29 that passes through the opening I of the backflow partial path I34 provided in the interior 18 and is joined to the opening H of the drain discharge port 27. The reverse flow path (2nd flow path) corresponding to the 2nd rotation position of the reverse flow switching board 18 discharged | emitted out of a main body from the discharge port 27 is shown.

Circulation bath for home use The so-called 24-hour bath is a water and sewage system that is free from the hassle of daily bathing, water filling and boiling, additional cooking and additional hot water due to differences in family bathing time, and daily bath water exchange. It is a resource-saving effect that saves energy, and since it does not boil the bath, there is no direct generation of carbon dioxide due to the burning of gas or kerosene. is there.
In addition to these advantages, the present invention has established hygiene safety by suppressing fungal growth in bath water, and it can be easily handled by elderly people, and can be used at any time to help maintain health. It contributes to the extension of healthy life expectancy and the reduction of medical expenses.

1 Bathtub
2 Bath water 3 Water inlet 4 Water outlet 5 Tank inlet 6 Filtration tank 7 Filtration tank lid 8 Filtration filter 9 Porous cylinder 10 Non-woven filter 11 Tape 12 having a bowl-like surface 13 Tape 13 having a loop-like surface Upper elastic packing 14 Lower elastic packing 15 Tank outlet 16 Reverse valve 17 Bubble body 18 Backflow switching panel 19 First valve inlet 20 First valve outlet 21 Second valve inlet 22 Second valve outlet 23 Third valve inlet 24 Third Valve outlet 25 Valve inlet 26 Valve outlet 27 Drain outlet 28 Flow path A'-B
29 Channel C'-D
30 Channel E'-F
31 Channel 32 Partial channel G for backflow
33 Backflow partial path J
34 Partial path I for backflow
35 Partial passage for backflow 36 Pump inlet 37 Circulating pump 38 Pump outlet 39 Heater inlet 40 Heating heater 41 Heater outlet A to J, A 'to G' Opening

Claims (4)

Bathtub (1),
It has a filter (8) for filtering the bath water circulating from the water inlet (3) to the water outlet (4) in the bathtub (1), and flows from the tank inlet (5) to the tank outlet (15). A filtration tank (6) for filtering bath water,
A circulating pump (37) for sucking bath water from the pump suction port (36) and sending it to the pump discharge port (38);
A heating heater (40) for heating bath water flowing from the heater inlet (39) to the heater outlet (41);
A drain outlet (27) for discharging bath water;
A reversing valve (16) for switching the bath flow path between the first and second switching states;
When the reverse valve (16) is in the first switching state, from the water inlet (3) in the bathtub (1), the reverse valve (16), the tank inlet (5) of the filtration tank (6), and the tank outlet (15), reverse valve (16), pump suction port (36) of circulation pump (37), pump discharge port (38), heater inlet (39) of heating heater (40), heater outlet (41), reverse rotation A first flow path is formed through the valve (16) and returning to the water outlet (4) in the bathtub (1).
When the reverse valve (16) is in the second switching state, from the water inlet (3) in the bathtub (1), the reverse valve (16), the tank outlet (15) of the filtration tank (6), the tank inlet (5), reverse valve (16), pump suction port (36) of circulation pump (37), pump discharge port (38), heater inlet (39) of heating heater (40), heater outlet (41), reverse rotation A domestic circulating warmer in which a second flow path is formed through the valve (16) to the drain outlet (27). The reversing valve (16) has a valve main body (17) and a cylindrical reverse flow switching board (18) which is rotatably and liquid-tightly accommodated therein.
On the outer circumferential side surface of the valve body (17), a first valve introduction port (19) communicating with the water suction port (3), a third valve outlet port (24) communicating with the water discharge port (4), a tank A first valve outlet (20) that communicates with the inlet (5), a second valve inlet (21) that communicates with the tank outlet (15), and a second valve guide that communicates with the pump inlet (36). The outlet (22), the third valve introduction port (23) communicating with the heater outlet (41), and the drain discharge port (27) are opened at a portion facing the outer circumferential side surface of the backflow switching board (18). Are arranged,
The reverse flow switching board (18) is formed with a plurality of flow passages having both ends opened on the outer circumferential side surface of the reverse flow switching board (18), and the first flow path between the first and second rotational positions. Valve inlet (19), first valve outlet (20), second valve inlet (21), second valve outlet (22), third valve inlet (23), third valve outlet (24 ) And the drain opening (27) are selectively communicated and closed.
The household circulating warm bath according to claim 1, wherein the first and second flow paths are formed. During the first rotation, the first valve inlet (19), the first valve outlet (20), the second valve inlet (21), the second valve outlet (22), and the third valve inlet ( 23) and the third valve outlet (24) communicate with each other to form the first flow path,
During the second rotation, the first valve inlet (19) and the second valve inlet (21), the first valve outlet (20), the second valve outlet (22), and the third valve inlet ( 23. The domestic circulating warmer according to claim 2, wherein the second flow path is formed by communicating each of 23) and the drain discharge port (27). A filtration filter (8) in which a nonwoven fabric filter (8) for removing impurities mixed in bath water is wound around the outer peripheral surface of a porous cylinder (9) equipped with an upper elastic packing (13) and a lower elastic packing (14). Insert it slightly longer than the depth of the filtration tank (6),
The household top according to any one of claims 1 to 3, further comprising a filtration tank lid (7) that is openable and closable at the top of the filtration tank (6) and that is liquid-tight inside. Circulating water bath.

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