Patent Abstract:
The present invention provides a multi-functional personal hygiene system. This multi-functional personal hygiene system has a similar structure to a walk-in bathtub, the difference of the main structure between them is that, the former has a cover assembly on the tub, but the latter does not have it. The multi-functional personal hygiene system is equipped with a sauna system, a water jet system, a at least one massage &amp; scrub disk assemblies, a shower mode, a bath mode, a tub clean system and a media center. The tub clean system makes the tub cleaning easier and more simply. The media center brings the users some information about the multi-functional personal hygiene system and some entertainment, provides the user some humanization services.

Full Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    Not applicable 
       TECHNICAL FIELD 
       [0002]    The present invention relates generally to a tub equipped with a sauna system, a water jet system, at least one massage &amp; scrub disk assemblies, a tub clean system and a media center. 
       BACKGROUND OF THE INVENTION 
       [0003]    It is well known that a walk-in bathtub is safe and comfortable. It allows the user to walk into and out of the bathtub without a risk of slips and falls. Its back place has been raised and created a built-in seat, some water jet nozzles have been installed on the tub walls. The user feels safe and comfortable during sitting on the built-in seat and getting a hydraulic massage by the water jet. Although the walk-in bathtub has these advantages mentioned above, it still has some faults. Firstly, it is only attractive to the users with old ages or physical disabilities, but the independent persons are not interested in these functions. Secondly, the walk-in bathtub makes a bathing very expensive because the bathing consumes lots of warm water, especially, used in some water shortage countries and areas. Thirdly, its open structure causes some problems too, for example, much heat loses. The users, especially those who are in poor health, easily catch a cold. These above reasons badly affect the commercialization of the walk-in bathtub. 
       BRIEF SUMMARY OF THE INVENTION 
       [0004]    The present invention provides a multi-functional personal hygiene system not only for the users who have physical limitations that make it difficult or dangerous to climb into and out of a regular bathtub, but also for those who are in good health and independent. This invention makes the personal hygiene more simply and brings them more health, more beauty, more comfort and more pleasure in addition to the safety. 
         [0005]    This multi-functional personal hygiene system has a similar structure to the walk-in bathtub, the difference of the structure between them is that, the former has a cover assembly on the tub, but the latter does not have it. The multi-functional personal hygiene system is equipped with more systems, such as the sauna system, the water jet system, the at least one massage &amp; scrub disk assemblies, a shower mode, a bath mode and the tub clean system. The sauna system makes the user more health, the massage &amp; scrub disk assemblies make the user more health and clean the user&#39;s back, the shower mode saves lots of warm water and time for the user, the tub clean system makes the tub cleaning automatically and more simply. The media center brings the user much information about the multi-functional personal hygiene system and much entertainment, provides the user some humanization services. 
     
    
     
       BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING 
         [0006]    The present preferred embodiment of the invention is illustrated in the accompanying drawings, in which: 
           [0007]      FIG. 1  shows a typical example of a walk-in bathtub with an outward swinging side door in accordance with the prior art; 
           [0008]      FIG. 2  shows a perspective view of a multi-functional personal hygiene system in the door closed position (work process) in accordance with a preferred embodiment of the present invention; 
           [0009]      FIGS. 3A-3E  show a perspective view of a multi-functional personal hygiene system in the door opened position in accordance with a preferred embodiment of the present invention; 
           [0010]      FIGS. 4A and 4B  show a view of the tub of the embodiment of the present invention; 
           [0011]      FIG. 5  shows a view of a support frame of the embodiment of the present invention; 
           [0012]      FIG. 6  shows a perspective view of a front apron of the embodiment of the present invention; 
           [0013]      FIG. 7  shows a perspective view of a side apron of the embodiment of the present invention; 
           [0014]      FIGS. 8A ˜ 8 C show a perspective view of an access door of a multi-functional personal hygiene system of the embodiment of the present invention; 
           [0015]      FIGS. 9A ˜ 9 G show a perspective view of a cover assembly in accordance with a preferred embodiment of the present invention; 
           [0016]      FIGS. 10A ˜ 10 C show a perspective view of a massage &amp; scrub disk assembly of the embodiment of the present invention; 
           [0017]      FIGS. 11A and 11B  show a perspective view of a water jet nozzle with a wide spraying angle of the embodiment of the present invention; 
           [0018]      FIG. 12  shows a flow chart of the embodiment of the present invention; 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0019]      FIG. 1  shows a perspective view of a walk-in bathtub with an outward swinging side door in accordance with the prior art; 
         [0020]    Referring now to  FIG. 2 ,  FIG. 2  shows a perspective view of the multi-functional personal hygiene system with a left side door in a closed position with a preferred embodiment of the present invention. Similarly,  FIGS. 3A ˜ 3 E show a perspective views of the multi-functional personal hygiene system with a left side door in an opened position with a preferred embodiment of the present invention. 
         [0021]    In the example shown ( FIG. 2 ), the multi-functional personal hygiene system mainly comprises the tub  1  where the user takes a sauna, a shower, a bath and a massage, an access door  20  with a door lock  21 , a cover assembly which consists of a sliding cover  13 , an eversible cover  14  and an immovable cover  4  (best shown in  FIGS. 9A ˜ 9 G), a massage &amp; scrub disk assembly  16  (best shown in  FIGS. 10A ˜ 10 C), a support frame  17 , the sauna system  65  (shown in  FIG. 9E ) that is adapted to supply the user a sauna and auxiliary heat the warm water in the tub  1 , the water jet system  18  that is adapted to supply the user a shower or bath and a hydraulic massage, a cold water valve  2 , a hot water valve  3 , a hand held shower head  12 , a front apron  19 , six control buttons  5 ,  6 ,  7 ,  8 ,  10  and  11  (best shown in  FIG. 9G ), a leakage current circuit breaker  15  and the media center  9 . It is important that the leakage current circuit breaker  15  is installed in the multi-functional personal hygiene system. It will switch off the whole hygiene system and protect the user in case of leakage of electricity. 
         [0022]    Unlike prior art designs, the present invention allows the user to sit down on the built-in seat before entering the tub  1 , then turn his or her body safely about 90 degrees and move the legs into the tub  1 . In another word, sitting-in is safer than walking-in for the invalids. 
         [0023]    As shown in  FIGS. 2, 3A, 3C and 3D , for the user to easily operate the multi-functional personal hygiene system of the embodiment of the present invention, six buttons are installed on the top of the multi-functional personal hygiene system, they are named as POWER  10 , TUB CLEAN  11 , BATH MODE  8 , MASSAGE  7 , WATER JET  6  and SAUNA  5  (best shown in  FIG. 9G ). When the user wants to use the multi-functional personal hygiene system, he should do the following operations. 
         [0024]    First of all, the power button  10  has to be pressed down, once this button is pressed down, the media center  9  has been started. An instant temperature value inside the tub  1  has been detected by a temperature sensor  38  (shown in  FIGS. 3E and 12 ) and shown on the screen. For a new user, he/she can read some information in the media center  9 , such as some information about the sauna, shower, bath and massage. Of course, he/she may read a tub manual in the media center  9  before doing the next operations. 
         [0025]    Secondly, the user may press down the tub clean button  11  if he wants to clean the tub  1 . Before pressing down this button, he has to close the access door  20 , turn the handle  21  and lock the access door  20 . The tub clean system is an auxiliary system that cleans the whole hygiene system automatically, saves the tub cleaning labour, and avoids a cross infection between different users, and is controlled by a circuit controller  63  (as shown in  FIG. 9E ). Once this button  11  is pressed down, the circuit controller  63  will close a drain solenoid valve  39  (normally opened) and open the water inlet solenoid valve  36  (normally closed, as shown in  FIG. 3E ) at once. The water, coming from a cold water line  35  and a hot water line  34  (as shown in  FIG. 3E ), passes a faucet  32  (as shown in  FIG. 3C ), and enters the tub  1  immediately. The water inlet solenoid valve  36  will close when a water level reaches to a predetermined level, the water level is controlled by a water level gage  40  (as shown in  FIG. 3E ). The tub clean system will not start if the sliding cover  13  and the eversible cover  14  do not cover the tub  1  completely because a magnetic switch  42  (shown in  FIG. 3D ) is off. The magnetic switch  42  is controlled by the eversible cover  14 , the magnetic switch  42  will be on when the eversible cover  14  covers the tub  1  completely and be off when the eversible cover  14  opens. Once the magnetic switch  42  is on and the water level reaches to the predetermined water level, the pump  18  (as shown in  FIGS. 2, 3A, 3C-3E ) will start immediately. The water, mixed with some soap and antiseptic liquids, goes to all of the water jet nozzles with a wide spraying angle  22  (as shown in  FIG. 3A ) and the hydraulic massage water jet nozzles  26  (as shown in  FIG. 3B ), is jetted everywhere of the tub  1 . The water jet will last a predetermined time, this time is controlled by the circuit controller  63  (as shown in  FIG. 9E ). The tub clean process will finish when this process lasts a predetermined time. The circuit controller  63  stops the pump  18 , and opens the solenoid drain valve  39  (as shown in  FIG. 3E ). Conversely, as shown in  FIG. 1 , the walk-in bathtub with the prior art does not have this function because of shortage of the cover assembly shown in the present invention. 
         [0026]    Thirdly, the user may press down a bath mode button  8  when he wants to take the bath. Usually, the users, especially the young users, just simply take a shower. But sometimes, they want to take the bath too, especially the old and infirm members in their family like to take the bath. So it is necessary that the multi-functional personal hygiene system is equipped with both a shower mode and a bath mode. Once the bath mode button  8  is pressed down, the multi-functional personal hygiene system will be on the bath mode. The bath mode will be cancelled and the multi-functional personal hygiene system goes back to the shower mode when the bath mode button  8  is pressed down again. 
         [0027]    Fourthly, if the user wants to take the sauna, he may press down the SAUNA button  5  (shown in  FIGS. 2, 3A, 3C, 3D and 9G ). The sauna system includes a steam maker or a hot-air fan  65  (as shown in  FIG. 9G ) that is located in the immovable cover  4 , a pipe  37  (as shown in  FIG. 3E ) that transports some steam or hot air into the tub  1 , the sauna button  5  and the circuit controller  63  (as shown in  FIG. 9E ). After sitting on the built-in seat, closing and locking the access door  20  by turning the handle  21 , the user can press down the SAUNA button  5  to start his sauna, then pulling out the sliding cover  13  and closing the eversible cover  14 , the steam maker or hot-air fan  65  begins to work right away. The steam or hot air will go into the tub  1  along the pipe  37  (shown in  FIG. 3  E) that connects the steam maker or hot-air fan  65  and the faucet  32  (as shown in  FIG. 3C ) of the tub  1 . A temperature will be detected by the temperature sensor  38  and shown on the screen, and this temperature goes up instantly until reaching to a predetermined temperature, then the circuit controller  63  keeps this temperature. The user can finish his sauna by means of pressing the SAUNA button  5  again. It is very important that when the sauna system is working, the water jet button  6 , the bath mode button  8 , and the tub clean button  11  absolutely cannot work even if they have been pressed down carelessly. 
         [0028]    As for the water jet system, it mainly comprises of the water inlet solenoid valve  36  (as shown in  FIG. 3E ), a water level gage  40  (as shown in  FIG. 3E ), the pump  18 , the water jet nozzles with a wide spraying angle  22  (as shown in  FIG. 3A ), the hydraulic massage water jet nozzles  26  (as shown in  FIG. 3B ), a regulating valve  23  (as shown in  FIG. 3A ), a filter  30  (as shown in  FIG. 3C ), the circuit controller  63  (as shown in  FIG. 9E ), a faucet  32  (as shown in  FIG. 3C ), the temperature sensor  38  (as shown in  FIG. 3E ) and the solenoid drain valve  39  (as shown in  FIG. 3E ). In the example shown in  FIG. 3B , four or more hydraulic massage water jet nozzles  26  are installed on the back wall of the tub  1  according to the present invention. These hydraulic massage water jet nozzles  26  jet the warm water on the user&#39;s body and legs, this process is similar to a hydraulic massage. The water jet nozzles with a wide spraying angle  22  are mounted on the wall of the closed space, and spray the warm water fog on the user&#39;s skins and aim at moisturizing and cleaning the skins. 
         [0029]    Now, the user opens the access door  20 , sits down on the built-in seat, turns his body 90 degrees. After sitting on the built-in seat, he closes and locks the access door  20  by turning the door lock handle  21 . The user can press down the WATER JET button  6  to start his shower. If he wants to take a bath, he should press down the BATH MODE button  8  before pressing down the WATER JET button  6 . Once the WATER JET button  6  is pressed down, the user may pull the sliding cover  13  out of the immovable cover  4  and close the eversible cover  14 . The magnetic switch  42  will be on when the eversible cover  14  covers the tub  1  completely. The circuit controller  63  closes the solenoid drain valve  39 , and opens the water inlet solenoid valve  36  immediately. After water passes the cold water line  35  and hot water line  34  (shown in  FIG. 3E ) and mixes, passes the water inlet solenoid valve  36  and a faucet  32  (shown in  FIG. 3C ), finally arrives in a tub pool. The cold water valve  2  and the hot water valve  3  is connected to its associated supply line  35  and  34  and controlled by the user to open and allow the water flow through the lines  35  and  34 , or to close and stop the water flow through the lines  35  and  34 . If the temperature sensor  38  (as shown in  FIG. 3E ) detects that the temperature of the water through the faucet  32  exceeds a predetermined temperature, the circuit controller  63  will shut up the water inlet solenoid valve  36  immediately, and open the drain solenoid valve  39 , the media center  9  will show “alarm” on the screen. The filter  30  (as shown in  FIG. 3C ) is located at the bottom of the tub  1 , before the inlet of the pump  18 . The pump  18  is situated under the built-in seat and on a pedestal. Filtered water passes the pipe line  33  (as shown in  FIGS. 3D and 3E ) and arrives at the inlet of the pump  18 . Some suction pipe lines connect the water jet nozzles to the outline  41 . The pump  18  will start when the water level gage  40  detects that the water level arrives at a predetermined level, meanwhile, the warm water is jetted out of all the water jet nozzles. The regulating valve  23 , which connects the inlet and outlet of the pump  18  by means of the pipe line, is adapted to adjust the pressure of the water jet nozzles. When the user feels that the water pressure is too high, he may open the regulating valve  23 . Some of water coming from the pump will go back directly to the inlet of the pump. When he feels that the water pressure is too weak, he may close the regulating valve  23 . The user may get a desirable jetting strength by turning the regulating valve  23 . The temperature sensor  38  detects the water temperature and shows it on the screen  9 . When this temperature drops, the circuit controller  63  will start the steam maker or hot-air fan  65  to make some steam or hot air, the steam or hot air will be sent into the tub pool and heats the water. When the water temperature goes up to the predetermined temperature, the circuit controller  63  will switch off the steam maker or hot-air fan  65 , so the water temperature is always kept at the determined temperature. The magnetic switch  42  (as shown in  FIG. 3D ) is adapted to pause the multi-functional personal hygiene system, the magnetic switch  42  will be on when the sliding cover  13  and the eversible cover  14  cover the tub  1  completely, and off when the eversible cover  14  is pushed away. The water jet process may recover from the pause point instead of starting from the beginning when the sliding cover  13  and the eversible cover  14  cover the tub  1  completely again. If the user wants to finish the water jet, just opens the eversible cover  14  and press the WATER JET button  6  again. Once the water jet button  6  is pressed again, the solenoid drain valve  39  (shown in  FIG. 3E ) will be opened immediately by the circuit controller  63  (as shown in  FIG. 9E ) and the pump  18  will be switched off by the circuit controller  63 . All the water in the multi-functional personal hygiene system will be drained completely. Similarly, it should be mentioned that all the operation on the SHOWER mode can be used on the bath mode. 
         [0030]    As shown in  FIGS. 2, 3A ˜ 3 E, a hand held shower head  12  is equipped on the top of the multi-functional personal hygiene system in accordance with a preferred embodiment of the present invention. This hand held shower head  12  is usually used for washing the user&#39;s head and face. Sometimes, it is used for cleaning the user&#39;s body with the clean water after the user takes a shower or bath with soap water as well. It is simply used for cleaning the tub  1  as well. It should be mentioned that when the water jet system is working, the sauna button  5 , the bath mode button  8  and the tub clean button  11  absolutely cannot work even if they have been pressed down carelessly. The massage button  7  does or does not work according to the user&#39;s desire during the water jet system working. 
         [0031]    A massage &amp; scrub disk assembly  16  (shown in  FIGS. 2, 3A ˜ 3 D, more detailed in  FIGS. 10A ˜ 10 C) is mounted on the wall of the seating area of the tub  1  and used for massaging and cleaning the user&#39;s back. This massage &amp; scrub disk assembly includes a hard and strong disk  77  (best shown in  FIG. 10C ), a belt  71 , a disk cover  72  made of the non-metal material with various kinds and sizes of bulges on the disk cover surface, these bulges are very smooth, and made of plastic, composite material, stone or wood; a shaft that connects the disk  77  and a belt wheel  73 , a shaft installing sleeve  76  and the nuts  74 ,  75 . The nut  75  fastens tightly the shaft installing sleeve  76  on the wall of the tub  1 , the nut  74  fastens the disk  77  in the shaft installing sleeve  76 . The disk  77  is driven by a massage motor  70  (shown in  FIGS. 10A and 10B ) installed on a support frame  17  (shown in  FIG. 2, 3A ˜ 3 E) and rotates alternatively on the clockwise and counter clockwise at a low speed. The user can randomly start this disk by pressing down the massage button  7  that situates on the top of the immovable cover  4 . It should be mentioned that the massage &amp; scrub disk assembly may work together with the sauna system, the water jet system, or the tub clean system, it may work alone as well. 
         [0032]    It should be noted that only one massage and scrub assembly  16  is equipped on the multi-functional personal hygiene system (shown in  FIG. 2, 3A ˜ 3 D) of the example embodiment of the present invention. Actually, at least one massage &amp; scrub disk assemblies may be applied on the multi-functional personal hygiene system of the present invention. 
         [0033]      FIGS. 4A and 4B  show a tub  1  that does not utilize a door frame around the threshold of the present invention. Unlike the walk-in bathtub of the prior art design, the back place of the tub bottom in the present invention is raised to form a built-in seat, the front place is a water pool for containing the warm water. In addition, a step  45  (best shown in  FIGS. 4A and 4B ) is formed on the upstanding sidewall. This step is used for supporting the immovable cover  4 . The width of the tub below the step  45  is smaller than the width of the tub above the step. There are two holes  28  for the door lock pin on the tub  1 . It should be noted that the present invention can also be used with the tub that utilizes a door frame around the threshold, no matter the outward swinging access door opens forward or backward, on the left side or right side. 
         [0034]    In the example shown,  FIGS. 8A ˜ 8 C show the access door  20  with a set of lock  21 . The access door  20  is connected to the support frame  17  by an intermediate double axis hinge  50 , the double axis hinges  50  are fastened on the access door by some screws, meanwhile, the double axis hinge  50  are fastened on the support frame  17  (as shown in  FIG. 5 ) through the door threshold. A set of door lock  21  is equipped on the access door  20 , both door lock pins  25  come out of the access door  20  when the door lock handle  21  is turned 180 degrees (as shown in  FIG. 8C ). A track  52  is used for the sliding cover  13  to slide inside. However, it should be mentioned that the present invention can also be used with the tub  1  that utilizes a door frame around the threshold. 
         [0035]    As you know, it is very important that the choice of seal between the access door  20  and the threshold. Like the prior art design, a sealing strip  51  (as shown in  FIGS. 8B  and  8 C) is used for sealing between the access door  20  and the threshold in the present invention. 
         [0036]    Unlike the prior art design,  FIGS. 9A ˜ 9 G show the cover assembly that is equipped on the top of the tub  1  of the present invention, it is formed by plastic, composite material or wood, and comprises the sliding cover  13 , the eversible cover  14  and the immovable cover  4 . For watching how the multi-functional personal hygiene system works, the sliding cover  13  and eversible cover  14  may be made of a transparent material. The steam maker or hot-air fan  65 , the circuit controller  63 , a louder speaker  64 , and the media center  9  are installed in the immovable cover  4  (as shown in  FIG. 9A-9G ), some small plastic wheels  62  are used for the sliding cover  13  to move in the track  24  smoothly. The eversible cover  14  is connected to the sliding cover  13  by means of a couple of hinge  60 . The sliding cover  13  can be pulled out of the immovable cover  4  so as to cover the tub  1 . The cover assembly is mounted on the tub  1  (as shown in  FIG. 2,3A ˜ 3 E), some bolts are adapted to connect the immovable cover  4  to the tub  1 . Some sealing strips  6   i  are adapted to seal between the tub  1  and the cover assembly. 
         [0037]      FIGS. 11A and 11B  show a representative water jet nozzle with a wide spraying angle  22  equipped on the multi-functional personal hygiene system of the present invention. This water jet nozzle with a wide spraying angle includes a shell  83  with an inlet  81 , a disk with two holes  84  and a cover  85  with a small outlet  82 . The disk  84  separates the nozzle into a front room and a behind room. The pressured water coming from the pump  18  goes into the behind room of the jet nozzle  22 , the water flow begins to revolve rapidly in the front room of the nozzle after passing through the two holes of the disk  84 . The pressured water becomes a lot of tiny or small size of water drops when coming out of the outlet  82  of the water jet nozzle with a wide spraying angle  22 . 
         [0038]      FIG. 12  shows a representative flow chart of a multi-functional personal hygiene system in accordance with a preferred embodiment of the present invention. 
         [0039]    All the six control buttons are waterproof and have their indicating lights, when they are pressed down, their lights will be turned on, means “switch on”; when pressed again, their lights will be turned off, means “switch off”. 
         [0040]    Referring now to the flow chart (shown in  FIG. 12 ), describe the working process of the multi-functional personal hygiene system. 
         [0041]    First of all, switch on the multi-functional personal hygiene system by pressing the power button  10 . Its light is turned on, and the media center  9  starts, meanwhile, the temperature sensor  38  detects the temperature in the tub  1 , and this temperature value is shown on the screen, the user may search for all the information in the media center  9 , the videos and audios may be played in the media center  9 . 
         [0042]    Secondly, the tub clean system may be started if needed. The user closes and locks the access door  20 , pulls the sliding cover  13  out of the immovable cover  4 , and closes the eversible cover  14  completely. When the tub clean button  11  is pressed down, its light will be turned on, the circuit controller  63  shuts up the solenoid drain valve  39  (normally opened) and opens the water inlet solenoid valve  36  (normally closed), the warm water goes into the tub  1  through the faucet  32 . The alarm will be on and the water inlet solenoid valve  36  will be shut up and the solenoid drain valve  39  will be opened if the water temperature exceeds the predetermined temperature. The circuit controller  63  will close the water inlet solenoid valve  36  when the water level gage  40  detects that the water level reaches at the predetermined level. The tub clean system will be on the “pause” condition if the eversible cover  14  opens. Once the eversible cover  14  is closed, the magnetic switch  42  (shown in  FIG. 3D ) will be switched on. The pump  18  starts and the water jets from all the water jet nozzles  22  and  26 . When the tub clean system works a predetermined time, the circuit controller  63  will shut the pump  18  and open the solenoid drain valve  39 , the indicating light of the tub clean button  11  will be switched off, the tub clean process finishes. 
         [0043]    Thirdly, when the sauna button  5  is pressed down, its indicating light will be turned on. The circuit controller  63  starts the steam maker or hot-air fan  65 , the temperature in the tub  1  rises and is shown on the media center  9 , when the temperature reaches at the predetermined temperature, the circuit controller  63  stops the steam maker or hot-air fan  65 . When the temperature drops, the steam maker or hot-air fan  65  will start again. By doing so, the temperature in the tub  1  is always kept at the predetermined temperature. The user can press down the sauna button  5  again to stop the sauna system when he wants to finish his sauna, its light will be turned off when the sauna button  5  is pressed down again. 
         [0044]    Fourthly, when the water jet button  6  is pressed down, its indicating light will be turned on. The circuit controller  63  closes the solenoid drain valve  39  (normally opened); meanwhile, opens the water inlet solenoid valve  36  (normally closed). The warm water goes into the tub  1 , the alarm will be on and the water inlet solenoid valve  36  will be shut up and the solenoid drain valve  39  will be opened if the water temperature exceeds a predetermined temperature. The water inlet solenoid valve  36  will be shut up by the circuit controller  63  when the water level gage  40  detects that water level reaches at a lower predetermined water level. This lower predetermined water level is under the seat of the tub  1 . If the eversible cover  14  opens, the water jet system will be on the “pause” condition. Once the eversible cover  14  is closed completely, the magnetic switch  42  (shown in  FIG. 3D ) will be on. The pump  18  starts and the water jets from all the water jet nozzles, the desired pressure of the water may be gotten by means of turning a pressure regulating valve  23 . The user may break the water jet by means of opening the eversible cover  14  or finish the water jet by means of pressing down the water jet button  6  again. Once the water jet button  6  is pressed down again, the circuit controller  63  shuts the pump  18  and opens the solenoid drain valve  39  immediately, the light of the water jet button  6  is switched off too. 
         [0045]    When the user wants to take a bath, he should press down the bath mode button  8  firstly, the hygiene system will work on the bath mode, then press down the water jet button  6 . Once the water jet button  6  is pressed down, the circuit controller  63  closes the solenoid drain valve  39  (normally opened); meanwhile, opens the water inlet solenoid valve  36  (normally closed). The warm water goes into the tub  1 , the alarm will be on and the water inlet solenoid valve  36  will be shut up and the solenoid drain valve  39  will be opened if the water temperature exceeds the predetermined temperature. The water inlet solenoid valve  36  will be shut up by the circuit controller  63  when the water level reaches at a higher predetermined water level. If the eversible cover  14  opens, the water jet system will be on the “pause” condition. Once the eversible cover  14  is closed, the magnetic switch  42  will be on. The pump  18  starts and the water jets from all the water jet nozzles, the desired pressure of the water may be gotten by means of turning a pressure regulating valve  23 . The user may break the water jet by means of opening the eversible cover  14  or finish the water jet by means of pressing down the water jet button  6  again. Once the water jet button  6  is pressed down again, the circuit controller  63  shuts the pump  18  and opens the solenoid drain valve  39  immediately, the light of the water jet button  6  is switched off too. The user may open a manual drain valve  31  (shown in  FIG. 3C ) to drain the water quickly when the circuit controller  63  opens the solenoid drain valve  39  because there are many water in the tub  1  on the bath mode. 
         [0046]    Finally, when the massage button  7  is pressed down, its light will be turned on. A belt  71  connects the massage motor  70  and the disk  72 . The massage motor  70  drives the massage &amp; scrub disk  72 , the massage &amp; scrub disk  72  alternatively rotates on the clockwise and counter clock wise, at a speed of 5˜7 revs per minute, exchanges the rotation direction about every half minute. The disk will stop when the massage button  7  is pressed down again. 
         [0047]    It should be mention that:
       a. When the tub clean button  11  works, other buttons cannot work;   b. When the sauna button  5  works, the massage button  7  can work at the same time, the tub clean button  11 , the water jet button  6  and the bath mode button  8  cannot work;   c. When the water jet button  6  works, the massage button  7  can work at the same time, the tub clean button  11 , the sauna button  5  and the bath mode button  8  cannot work;   d. When the bath mode button  8  is pressed down, its light will be turned on. The multi-functional personal hygiene system will be on the bath mode. When the water jet button  6  is pressed down, the water level will reach at a higher predetermined level. The massage button  7  can work, and the sauna button  5  and the tub clean button  11  cannot work.       
 
         [0052]    The description of the present invention has been presented for purpose of illustration, and is not intended to be exhaustive or limited to the invention in the form disclosed. Many modification and variation will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principals of the present invention, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated. It will be understood by one of the ordinary skill in the art that numerous variations will be possible to the disclosed embodiments without going outside the scope of the invention as disclosed in the claims.

Technology Classification (CPC): 0