Abstract:
A multifunctional nursing bed for excretion includes a bed frame, a board, two elevation devices, an excretion device, a washing device, an anti-splash device, a cover device, and a control device electrically connected to the mentioned devices for operation. When a user has a need for excretion, the control device turns on the elevation devices to elevate the board and the cover device is elevated and opened. Then descending the board and pressing the cover device for descending as well, for the anti-splash device to be elevated and ready for use, whereby the user is able to perform excretion directly on the nursing bed without any help from others.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Field of the Invention 
         [0002]    The present invention relates to a multifunctional nursing bed for excretion, particularly to one that allows its user to perform excretion thereon. 
         [0003]    2. Description of the Related Art 
         [0004]    As population aging becomes more serious, many illnesses that tend to happen to elders are more common such as strokes, brain diseases, paralysis, central nervous system damages, and other illnesses. These illnesses cause a person to lie on a bed for most of the time, and require the families and nursing personnel&#39;s full attention and strength for caring. And when it comes to daily routine like excretion and bathing, it is inconvenient and even self-esteem hurting. The patients have to rely on others&#39; help to go to the bath room; many of them also have a simple tool for urinate at bedsides. Such situations are tiring for the caregivers and even more embarrassing and mentally burdening for the patients. 
         [0005]    Therefore, it is desired to provide a nursing bed with practical functions that is able to solve the problems disclosed above. 
       SUMMARY OF THE INVENTION 
       [0006]    A primary object of the present invention is to provide a multifunctional nursing bed for excretion that allows its user to perform excretion thereon without moving or helps from others, achieving conveniences and reducing troubles for the user. 
         [0007]    Another object of the present invention is to provide a multifunctional nursing bed for excretion that allows people who had a stroke, aged people, paralyzed or vegetative patients to bathe directly thereon for more conveniences. 
         [0008]    To achieve the objects mentioned above, the present invention comprises a bed frame including a head board connecting a foot board with a plurality of side supports in-between; a board disposed on the bed frame between the head board and the foot board, including at least one first panel and one second panel, both ends of an abutting side of said first and second panels having a rotatable linkage point for angle adjusting between the first and second panels; a first elevation device disposed under the first panel for supporting and adjusting an elevation of the first panel; a second elevation device disposed under the second panel for supporting and adjusting an elevation of the second panel and an angle between the first and second panels; wherein the first panel includes a first through hole corresponding to a position of buttocks of human body; an excretion device arranged below the first through hole, including a basin, a seat pad disposed on a surface of the basin, and a detachable container disposed below the basin for taking the falling wastes; a washing device including a first tube connecting to said excretion device with an end and to a first pump with the other end, said first pump including a first suction tube to suck in water from a tank for washing the excretion device; an anti-splash device disposed at a front of the excretion device, including a placing space, an anti-splash cover disposed in said placing space with a gear rack arranged behind for operation, and a first motor arranged aside said placing space for driving a gear that engages said gear rack for elevation and descending; a cover device arranged between the excretion device and the first panel, including a cover disposed above the seat pad and composed of a left board and a right board, a first sliding rail, and a second sliding rail; said sliding rails being parallel arranged and respectively fixed at a front and a rear side of the cover by an engaging element for the left and right boards to slide along the first and second sliding rails to combine with and detach from each other; at both ends of said sliding rails, a vertical guiding rod being engaged with a spring in-between and the other end devoid of spring stretching through the side supports for elastically elevation of the washing device and for pressing and lowering said cover device to a position where the cover being in the first through hole when the board being descended; two driver assemblies symmetrically arranged at corresponding far sides of the first and second sliding rails, respectively including a second motor and a third motor for respectively driving a first threaded rod and a second threaded rod, on each of which a nut is arranged for respectively engaging and driving the right board and the left board; and a control device individually connected to the first elevation device, the second elevation device, the first pump, and the first, second and third motors, and having an operation interface for operation control; whereby upon a patient on the nursing bed having a need for excretion, the control device drives the first and second elevation devices to elevate the board and the cover device is elevated as well, then the board descends back to an original position after the cover of the cover device is opened, pressing the cover device for descending and placing the seat pad of the excretion device right under the first through hole with the anti-splash cover of the anti-splash device elevated for being ready for use. 
         [0009]    With structures disclosed above, the board has a plurality of ventilation holes with a mattress made of air-permeable materials placed thereon, and at least one fan arranged under the board for ventilation. The mattress further includes a second through hole corresponding to the first through hole on the first panel of the board. 
         [0010]    Furthermore, the basin of the excretion device has an exit at the center thereof with a seesaw device arranged thereunder. The seesaw device includes a movable board linked to a counterweight by a pivot arranged at a rear periphery of the exit to close the exit in normal status and to guide the wastes falling down to the container when needed. 
         [0011]    The washing device further includes a second tube that has an end thereof linked to the excretion device and the other end thereof linked to a second pump, said second pump linking to a second suction tube to suck in water from the tank for washing the excretion device, and an air tube having an end thereof linking to the excretion device and the other end thereof linking to a dryer for drying. 
         [0012]    The present invention further comprises an electrical heater arranged on the side supports, including a body linked to an end of a third tube and a showerhead, and the other end of the third tube is linked to a third pump with a third suction tube for sucking in water from the tank and heating up the water before discharging from the showerhead. 
         [0013]    As structures disclosed above, the present invention is designed for those have to lie on a bed for most of the time, usually patients. With the nursing bed, a user is able to perform excretion and bathe with more conveniences without relying on others&#39; helps, therefore regaining some self-esteem as well. Also, such invention helps with better hygiene. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0014]      FIG. 1  is a perspective view of the present invention in a preferred embodiment; 
           [0015]      FIG. 1A  is an exploded view of a mattress and a board thereof in  FIG. 1 ; 
           [0016]      FIG. 2  is a side elevation view of the present invention in a preferred embodiment; 
           [0017]      FIG. 3  is a perspective view of major components of the present invention in a preferred embodiment viewing from a slant angle; 
           [0018]      FIG. 3A  is a perspective view of an electrical heater thereof in  FIG. 3 ; 
           [0019]      FIG. 4  is a perspective view of major components of the present invention in a preferred embodiment viewing from another slant angle; 
           [0020]      FIG. 5  is a top plan view of the present invention in a preferred embodiment; 
           [0021]      FIG. 6  is a sectional view along line  6 - 6  in  FIG. 5 ; 
           [0022]      FIG. 7  is a side elevation view of the present invention in a preferred embodiment illustrating a mattress and a board thereof being elevated; 
           [0023]      FIG. 8  is a sectional view along line  8 - 8  in  FIG. 7 ; 
           [0024]      FIG. 9  is a schematic diagram illustrating an excretion device being operated in a preferred embodiment; 
           [0025]      FIG. 10  is a perspective view of the present invention in a preferred embodiment illustrating an excretion device being operated; 
           [0026]      FIG. 11  is a perspective view of an excretion device thereof in a preferred embodiment; 
           [0027]      FIG. 11A  is a perspective view of a seesaw device thereof; 
           [0028]      FIG. 12  is a side elevation view of a toilet assembly of the present invention, showing the front thereof descending; 
           [0029]      FIG. 13  is a side elevation view of a toilet assembly of the present invention, showing the front thereof elevating; 
           [0030]      FIG. 14  is an exploded view of the present invention in an applicable embodiment; 
           [0031]      FIG. 15  is a perspective view of  FIG. 14 ; 
           [0032]      FIG. 16A  is a perspective view of the present invention in another applicable embodiment; 
           [0033]      FIG. 16B  is an application example of  FIG. 16A ; 
           [0034]      FIG. 17A  is a top plan view of the present invention in another applicable embodiment; and 
           [0035]      FIG. 17B  is a side elevation view of  FIG. 17A . 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
       [0036]    Referring to  FIGS. 1-13 , in a preferred embodiment, the present invention comprises a bed frame  10 , a board  20 , a first elevation device  30 A, a second elevation device  30 B, an excretion device  40 , a washing device  50 , an anti-splash device  60 , a cover device  70 , two driver assemblies  80 , and a control device  90 . 
         [0037]    The bed frame  10  includes a head board  12  connecting a foot board  11  with a plurality of side supports  13  in-between. The side supports  13  can be horizontally or vertically arranged. 
         [0038]    The board  20  is disposed on the bed frame  10  between the head board  12  and the foot board  11 . It includes at least one first panel  21  and one second panel  22 ; at both ends of an abutting side of the first and second panels  21 ,  22 , a rotatable linkage point is arranged for angle adjusting between the first and second panels  21 ,  22 . In this embodiment, the board  20  has a plurality of ventilation holes  24  with a mattress  25  made of air-permeable materials placed thereon. Under the board  20  at least one fan  26  is arranged for ventilation. 
         [0039]    The first elevation device  30 A is disposed under the first panel  21  for supporting and adjusting an elevation thereof. In this embodiment, the device includes two pairs of elevation bar  31  and a third threaded rod  34 . Each pair of the elevation bar  31  includes a crossed assembly of a first bar  311  and a second  312  bar, symmetrically connected to the first panel  21  from under. The first bar  311  has a top end thereof fixed to the first panel  21  and a bottom end thereof fixed to the side supports  13  of the bed frame  10 , and the second bar  312  has a top end thereof fixed to the first panel  21  and a bottom end thereof fixed to a first transverse rod  32  that links to a first nut  33  in the middle thereof. The third threaded rod  34  has an end thereof screwing with the first nut  33  and the other end thereof connected to a fourth motor  35  to be driven and therefore displace the first transverse rod  32 , thereby control the elevation and descending of the first panel  21 . 
         [0040]    The second elevation device  30 B is disposed under the second panel  22  for supporting and adjusting an elevation thereof and an angle between the first and second panels  21 ,  22 . In this embodiment, the second elevation device  30 B includes two support rods  36  and a fourth threaded rod  39 . The support rods  36  are symmetrically connected to the second panel  22  from under; each has a top end thereof fixed to the second panel  22  and a bottom end thereof fixed to a second transverse rod  37  that engages a second nut  38  in the middle thereof. The fourth threaded rod  39  has an end thereof screwing with the second nut  38  and the other end thereof connected to a fifth motor  391  to be driven and therefore displace the second transverse rod  37 , thereby control the elevation and descending of the second panel  22 . 
         [0041]    The features of the present invention are described as following. The first panel  21  includes a first through hole  211  corresponding to a position of buttocks of human body. The excretion device  40  is arranged below the first through hole  211 , including a basin  41 , a seat pad  42  disposed on a surface of the basin  41 , and a detachable container  45  disposed below the basin  41  for taking the falling wastes E. In this embodiment, the basin  41  has an exit  43  at the center thereof with a seesaw device  44  arranged thereunder. Further referring to  FIG. 11A , the seesaw device  44  includes a movable board  441  linked to a counterweight  443  by a pivot  442  arranged at a rear periphery of the exit  43  to keep the exit  43  closed in normal status and to guide the wastes E falling down to the container  45  when needed. 
         [0042]    Furthermore, the washing device  50  includes a first tube  51  connecting to the excretion device  40  with an end and to a first pump  52  with the other end. The first pump  52  includes a first suction tube  53  to suck in water from a tank  54  for washing the excretion device  40 . In this embodiment, the washing device  50  further includes a second tube  55  and an air tube  58 . The second tube  55  has an end thereof linked to the excretion device  40  and the other end thereof linked to a second pump  56 . The second pump  56  links to a second suction tube  57  to suck in water from the tank  54  for washing the excretion device  40 , and the air tube  58  has an end thereof linking to the excretion device  40  and the other end thereof linking to a dryer  59  for drying. 
         [0043]    The anti-splash device  60  is disposed at a front of the excretion device  40 , including a placing space  61 , an anti-splash cover  62  disposed in the placing space  61  with a gear rack  63  arranged behind for operation, and a first motor  64  arranged aside said placing space  61  for driving a gear  65  that engages said gear rack  63  for elevation and descending. 
         [0044]    The cover device  70  is arranged between the excretion device  40  and the first panel  21 , including a cover  71  disposed above the seat pad  42  and composed of a left board  71 L and a right board  71 R, a first sliding rail  72 , and a second sliding rail  73 . The sliding rails  72 ,  73  are parallel arranged and respectively fixed at a front and a rear side of the cover by an engaging element  711  for the left and right boards  71 L,  71 R to slide along the first and second sliding rails  72 ,  73  to combine with and detach from each other. At both ends of the sliding rails  72 ,  73 , a vertical guiding rod  74  is engaged with a spring  75  in-between and the other end devoid of spring  75  stretches through the side supports  13  for elastically elevation of the washing device  50  and for pressing and lowering the cover device  70  to a position where the cover  71  being in the first through hole  211  when the board  10  descends. In this embodiment, the left and right boards  71 L,  71 R each has a concave surface  712  for disposing diapers (not shown). 
         [0045]    The driver assemblies  80  are symmetrically arranged at corresponding far sides of the first and second sliding rails  72 ,  73 , respectively including a second motor  81  and a third motor  82  for respectively driving a first threaded rod  811  and a second threaded rod  821 , on each of which a nut  812 ,  822  is arranged for respectively engaging and driving the right board  71 R and the left board  71 L. 
         [0046]    The control device  90  is individually connected to the first elevation device  30 A, the second elevation device  30 B, the first pump  52 , and the first, second and third motors  64 ,  81 ,  82 , and has an operation interface for operation control. In this embodiment, the control device  90  is disposed in a pre-determined position on the side supports  14  of the bed frame  10  as shown in  FIGS. 2 and 3 . 
         [0047]    Further referring to  FIGS. 2-3A , in the embodiment the present invention further comprises an electrical heater  100  arranged on the side supports  13 , including a body  101  linked to an end of a third tube  102  and a showerhead  105 , and the other end of the third tube  102  is linked to a third pump  103  with a third suction tube  104  for sucking in water from the tank  54  and heating up the water before discharging from the showerhead  105 . 
         [0048]      FIGS. 14 and 15  illustrated the present invention in an applicable embodiment, in which the present invention further includes a tub  110  to be disposed on the board  20  and having a third through hole  111  corresponding to the first and second through holes  251 ,  211 . In this embodiment, the tube  110  is made of waterproof materials with extension. 
         [0049]      FIGS. 16A and 16B  are schematic diagrams of the present invention in another applicable embodiment, in which the present invention further includes a shower frame  120  disposed on the bed frame  10  for a shower curtain  121  to be hung around for bathing. The shower frame  120  also allows a temporary hammock  130  to be placed therein for a user to lie on temporarily while preparing the tub  110  for bathing. 
         [0050]      FIGS. 17A and 17B  are schematic diagrams of the present invention in yet another applicable embodiment, in which the present invention further includes an adjustable U frame  140  disposed on the second panel  22  of the board  20  for installing a TV screen  150  thereon to play TV programs, be connected with a computer, and be a monitor. 
         [0051]    In conclusion, the present invention has features as below. Firstly, as shown in  FIG. 1 , under normal status the left and right boards  71 L,  71 R are combined and closed, hiding the excretion device  40  under the first panel  21  for environment hygiene concerns. Also, with the concave surfaces  712  on the left and right boards  71 L,  71 R and the ventilation holes  24  on the board  20  for the air to pass through, the nursing bed offers a space for diapers (not shown) and ventilated bed for its user, making it as comfortable as any nursing bed would be. 
         [0052]    Secondly, when its user has a need for excretion, to avoid hurting the user when operating the devices, the present invention would elevate the board  20  by the elevation devices  30 A,  30 B, counterbalancing the pressing force on the cover device  70  and elevating the guiding rod  74  with the elastic force of the spring  75 , further elevating the cover  71  and the sliding rails  72 ,  73  and placing the cover  71  in a space S between the board  20  and the excretion device  40 . Then the driver assemblies  80  would drive the second and the third motors  81 ,  82  to respectively rotate the first and second threaded rods  811 ,  821  for detaching the left and right boards  71 L,  71 R. The board  20  then descends back, pressing and descending the cover device  70  and placing the seat pad  42  of the excretion device  40  under the first and second through holes  211 ,  251  as shown in  FIG. 10 ; and the anti-splash cover  62  of the anti-splash device  60  is lifted to position and ready for use as shown in  FIG. 9 . 
         [0053]    Thirdly, upon wastes E falling down to the basin  41 , the movable board  441  of the seesaw device  44  inclines due to the weight, further causing the wastes E falling down to the container  45  via the exit  43 . Then the washing machine  50  operates to wash the excretion device  40  via the first tube  51  and the buttock of the user via the second tube  55 , and then dries with the air tube  58  linking to the dryer  59 , ensuring cleanness and hygiene. 
         [0054]    Therefore, the present invention is designed for those have to lie on a bed for most of the time, usually patients. With the features disclosed above, the user is able to perform excretion and bathe with more conveniences without relying on others&#39; helps, therefore regaining some self-esteem as well. Also, such invention helps with better hygiene. 
         [0055]    Although particular embodiments of the invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.