Abstract:
This invention is concerning with a kind of electromotive bed, on which a turnover device and a defecation device are installed, of which, the turnover device includes: a turnover supporting block; on which a plurality of shaft pin holes are formed bilaterally on the upper side and in which two holes are equipped separately with a shaft pin, and the turnover supporting block can be fixed rotatably in through holes with the shaft pins; a defector rod inserted in a slit opened in the lower portion of the turnover supporting block along the center line, and the other end of which connects to a deflector arm connecting to a load transfer device; the defecation device includes: a porefilling pad that can be contained in a hole, having a sleeve formed on its bottom surface; a spacer sleeve formed between the porefilling pad and a mattress; a sealed cowling fixed on the soleplate under the hole with its bottom hermetically connecting to a closestool; a mechanical linkage device connecting to the porefilling pad via the sleeve and connecting to a power installation. According to this invention, an electromotive bed, which is capable of turning over anti has a closestool, is simple in structure and convenient for use, and can prevent occurrence of the bedsore. Furthermore, the bed may be applied in common family because of its low price.

Description:
TECHNICAL FIELD  
       [0001]     This invention relates to a structure of health care electromotive bed, especially to an electromotive bed tat can turn the patient over and has a closestool.  
       BACKGROUND TECHNIQUE  
       [0002]     Generally speaking, the aged men, the disables and the patients who keep to their electromotive beds for a long time and feel difficult to move freely need to solve the problems of turnover and defecation on the electromotive bed, so that they can turn over for ventilation to avoid bedsore, and can relieve themselves on the electromotive bed conveniently, comfortably and hygienically.  
         [0003]     Of the current techniques there is a kind of electromotive bed having a net sling. The action is that a device which may be used to lift the net sling up as required is fixed on the electromotive bed, so that the human body is lifted at the same time. Therefore, it realize the ventilation through mesh of the net sling and prevent the person keeping to the electromotive bed from catching diseases such as bedsore, etc. Such products are complicated in structure and inconvenient for use, and cannot provide users with natural and comfortable sense. Many other electromotive beds capable of turnover are also published on China patent gazette, but these electromotive beds usually divide the electromotive soleplate into two parts, of which, one part is immobilized and another part can be turned over to make human body turn around. But such turnover mode still keeps the whole back of the human body closely fitting on the electromotive mattress, and can not provide a ventilation condition. Therefore it is still difficult to avoid the bedsore caused by keeping to bed for a long time, bad ventilation and disinfection, and high humidity.  
         [0004]     There are many kinds of existing electromotive beds with closestools, but most of them are without automatic jetter so that the people lying on the electromotive bed cannot clean himself. Whereas some products do have spray systems but water stream may be sprayed on the electromotive bed, clothing, and sometimes on other parts owing to the effect of the shape and plumpness of their bodies during operation, thereby result in inconveniences to the users. On the other hand, the person keeping to electromotive bed cannot deal with the defecation problem without a special people&#39;s help, because a removeable cushion at the relieving position on the electromotive bed can be taken down only with the cooperation of other people.  
         [0005]     In a word, each kind of existing electromotive sickbed has various functions, but the above problems can not be solved completely; on the other hand, these products are complicated in structure and expensive in price, therefore they are difficult to be accepted by the common consumer.  
       SUMMARY OF THE INVENTION  
       [0006]     The invention is aimed at providing a kind of electromotive bed that can turn the human body over and has a closestool, which in the meantime enable the users of the electromotive bed to turn over or defecate themselves according to their own willing; furthermore, cleaning, drying and ventilation can be cared out and thus the people who lie on the electromotive bed for a long time are guaranteed being from the bedsore.  
         [0007]     The electromotive bed provided by the technical proposal of this invention includes a bed body, 2-3 rectangular through holes are opened in the middle-upper portion of the mattress of the said bed body along the width line, and a turnover device is mounted in the through hole, which turnover device includes:  
         [0008]     A turnover supporting block, on which a plurality of shaft pin holes are formed bilaterally on the upper side and in which two symmetric holes are equipped separately with a shaft pin, and the said turnover supporting block is fixed rotatablely in the through holes with shaft pin;  
         [0009]     A deflector rod inserted into a slit opened in the lower portion of the turnover supporting block along the center line, and the other end of said deflector rod connects to a deflector arm and the other end of said deflector arm connects to a load transfer device which enable the turnover supporting block to turn left and right around the shaft pin.  
         [0010]     In the middle lower portion of the mattress of the said bed body, a hole is opened with a defecation device underneath, which defecation device includes:  
         [0011]     A porefilling pad contained in the bole and having a sleeve formed on its bottom surface;  
         [0012]     A spacer sleeve provided between the porefilling pad and the mattress, and the said spacer sleeve is installed on the electromotive bed through fixed parts on its lateral side, on each fixed part a spring being hitched;  
         [0013]     A sealed cowling fixed on the soleplate under the hole and with a closestool connecting hermetically to its bottom;  
         [0014]     A mechanical linkage connecting rotatablely to the porefilling pad via the sleeve and further connecting to a power installation.  
         [0015]     As an improvement of this invention, the said turnover supporting block is in a shape of peach and has a thickness of 4-12 cm; the turnover contact surface of the upper end face of the said turnover supporting block is lower than the surface of the mattress; an idler wheel is set up between the said deflector rod and the slit. A water nozzle that can rotate around a shaft is installed at the side of the hole within the said sealed cowling. A window is also opened on the said sealed cowling, which window connects to a warm air assembly consisting of photocatalyst filter screen, an electric fan, heating cord and a movable throttle.  
         [0016]     Four shaft pin supporting plates are installed correspondingly at the four corners on the longer sidewalls of the said through hole, and gullet is formed on the upside of the supporting plate; The upper side of the said turnover supporting block is provided bilaterally with more than 2 shaft pill holes, and two ends of two shaft pin installed symmetrically in the holes are locked correspondingly into the gullet of the shaft pin supporting plate.  
         [0017]     As another improvement of this invention, two shaft pin supporting plates in the shape of crossbar are installed correspondingly on the longer sidewall of the said through hole, and gullet is formed on the upside of the supporting plate; both ends of the said two shaft pins setting symmetrically protrude from the surface of the turnover supporting block and are locked respectively in the corresponding gullets of the two shaft pin supporting plates. In this way, the turnover supporting block can be fixed rotatablely between the two shaft pin supporting plates in the shape of crossbar through the shaft pins.  
         [0018]     The said load transfer device includes a rotating shaft fixed on the electromotive bed, and a deflector arm and a first gear are fixed coaxially oil the rotating shaft, an end of the said deflector arm connects to a deflector rod inserted into the slit; the said first gear engages with a first rack rod, and one end of the first rack rod connects; to a first unit head which can move back and forth in a straight line.  
         [0019]     The said mechanical linkage device includes:  
         [0020]     Two cross rods passing respectively through the sleeves formed parallelly at two sides of the bottom surface of the porefilling pad, and a crank is fixed on each of four ends of the two cross rods, and a minor axis is fixed on another end of the said crank;  
         [0021]     Four bearing blocks fixed on the electromotive bed, and each of the said four minor axes pass respectively through a bearing block and is fixed rotatablely;  
         [0022]     Four second gears fixed respectively on the ports where the four minor axes protrude from the bearing blocks;  
         [0023]     Two second rack rods engaging with two second gears located in the same side of the cross rod, and the said two second rack rods are mounted symmetrically through a bearing rod on a second unit head that can move back and forth in a straight line.  
         [0024]     As the further improvement of this inventions, a second gear is fixed on the end of the said minor axis passing trough sequentially the sealed cowling, bearing block; the said porefilling pad and the crank, cross rod of the mechanical linkage device are located within the sealed cowling; a leg lowering down device is set up at the leg section of the said electromotive bed. The lower opening of the said sealed cowling couples removably and hermetically with the closestool.  
         [0025]     The multifunction electromotive bed of this invention also provides the action of lowering down legs to make the user obtain normal sitting position in addition to the back raising function of the existing electromotive bed. On the other hand, 2-3 turnover supporting blocks that can waggle are configured to make every part of the human body contact the surface of the electromotive bed in turn, and therefore to make each part of the body get effective ventilation to avoid the occurence of bedsore. At the same time, a defecation hole on the surface of the electromotive bed, a moveable porefilling pad, a spacer sleeve, a sealed cowling and a closestool etc., are configured, and a flushing device, a warm air drying device, a circulating deodorization device and/or a sterilization device can be further added.  
         [0026]     The advantages of this invention are that the electromotive bed which can turn the human body over and has a closestool not only enable the users keeping to the electromotive bed to carry out the operation of starting and using by themselves with the turnover supporting blocks which enable the users to turn over freely lying on the electromotive beds and with the defecation device which enables users to relieve themselves by themselves lying on the electromotive beds when they want to turn over or relieve themselves, but also provides the cleaning, drying and ventilating measures so that guarantee the people keeping to bed for a long time not suffering from bedsore, and also enable the patients relieve themselves comfortably on the electromotive bed in sitting position so as to prevent maximally effluvium from overflowing. Therefore, the use of the electromotive bed according to the invention that can turn over and has a closestool can relieve the nursing personnel of the full-time nurse and care and improve considerably the nursing condition for the patients unconscious and losing all of their mobility.  
         [0027]     In addition, this invention is simple in structure, convenient for use and with good cleaning effect, and the products have low price and are suitable for common family. Furthermore, The products operate gently, are convenient to use and without any hazard. 
     
    
     BRIEF DESCRIPTION OF DRAWINGS  
       [0028]      FIG. 1  is the integral structural representation of the electromotive bed capable of turnover and having a closestool invention;  
         [0029]      FIG. 2  is the structural representation of the electromotive bed invention which is adjusted into the sitting position;  
         [0030]      FIG. 3  is the integral structural representation of the mattress of the electromotive bed according to the invention;  
         [0031]      FIG. 4  is the structural representation of the turnover supporting block in the electromotive bed according to the invention;  
         [0032]      FIG. 5  is the using state view of the turnover supporting block in the electromotive bed according to the invention;  
         [0033]      FIG. 6  is the using state view of the porefilling pad in the electromotive bed according to the invention;  
         [0034]      FIG. 7  is the using state view of one example of the turnover supporting block in the electromotive bed according to the invention;  
         [0035]      FIG. 8  is the using state view of one example of the porefilling pad in the electromotive bed according to the invention;  
         [0036]      FIG. 9  is the structural representation of one example of the mechanical linkage device in the electromotive bed according to the invention;  
         [0037]      FIG. 10  is the structural representation of one example of the spacer sleeve at the opening of the electromotive bed according to the invention.  
                                             Designation of the reference number:                                    1. Mattress   2 Through hole           3. Hole   4. Turnover supporting block           5. Shaft pin hole   6. Shaft pin           7. Slit   8. Turnover contact surface           9. Spacer sleeve   13. Fixed part           14. Shaft pin supporting plate   15. Gullet           16. Deflector rod   17. Deflector arm           18. Porefilling pad   19. Spring           20. Sealed cowling   21. Closestool           22. Rotating shaft   23. Primary gear           24. First rack rod   25. First unit head           26. Spray pipe   27. Shaft           28. Second unit head   29. Warm air assembly           30. Bearing rod   31. Sleeve           32. Cross rod   33. Crank           34. Minor axis   35. Second gear           36. Second rack rod   37. bearing block                        
     
    
     DETAILED DESCRIPTION OF THE EMBODIMENTS  
     EXAMPLE 1  
       [0038]     As shown in  FIGS. 1 and 2 , the electromotive bed of the example includes a back raising device and a leg lowering down device, thus it enable the patient relieve himself comfortably on the electromotive bed in sitting position.  
         [0039]     As shown in  FIG. 3 , two rectangular through holes  2  are opened in the middle upper portion of the mattress  1  along its width line, and a bole  3  for defection is opened at an appropriate position in the middle lower portion; a turnover supporting block  4  is installed in each through hole  2 , and the lateral of the turnover supporting block  4  is perpendicular to the axial line of the electromotive bed.  
         [0040]     As shown in  FIG. 4 , five shaft pin holes  5  are formed symmetrically on both left and right sides of the upper end of peach-shape turnover supporting block  4 , and shaft pins  6  are installed in the second shaft pit holes  5  from outside respectively, a slit  7  is opened at the nose bit of the turnover supporting block along the center line.  
         [0041]     As shown in  FIG. 5 , a shaft pin supporting plate  14  is fixed to each end of the two oppositing longer side edge of the inner wall of through hole  2  respectively, and each shaft pin  6  protrude from the surface of turnover supporting block  4  with their two ends and are locked correspondingly in gullets  15  of two shaft pin supporting plates  14  fixed on the electromotive bed body. In this way, the turnover supporting block  4  can be fixed rotatablely to the electromotive bed through shaft pins  6 . In this example, the turnover supporting blocks  4  have a width of 8 cm and its turnover contact surface  8  is lower than the mattress surface to ensure the ventilation of back and comfortable use.  
         [0042]     A deflector rod  16  is inserted into the slit of the said turnover supporting block  4 , and one end of the deflector rod  16  fixes vertically a deflector arm  17 . Meanwhile another end of the defector arm  17  connects to a load transfer device with which the turnover supporting block  4  can be overturned to left around the shaft pin  6  at the left side or overturned to right around the shaft pin  6  at the right side.  
         [0043]     The turnover supporting block  4  in peach shape can prevent the clothing of the people lying on the electromotive bed from being caught or his skin being injured during service. Staring up the load transfer device to drive the deflector arm to rotate, and through the deflector arm, the deflector rod move to drive the turnover supporting block  4  turn around the shaft pin  6  fixed in the shaft pin hole  5 , and therefore, the people lying on the electromotive bed turn over. In addition, a smooth surface of the turnover supporting block  4  should be guaranteed.  
         [0044]     As shown in  FIG. 6 , a porefilling pad  18  is placed in the hole  3  at the middle portion of the mattress and a spacer sleeve  9  is placed between the porefilling pad  18  and the hole  3 , a sealed cowling  20  is installed under the hole  3 , and a closestool  21  is connected under to the sealed cowling  20 . The porefilling pad  18  connects to a mechanical linkage device through the sleeves fixed parallelly at both sides of the bottom, and a part of the mechanical linkage device is located within the sealed cowling  20 . The front and rear spray pipes can also be fixed as required within the sealed cowling  20 .  
         [0045]     In this example, the turnover supporting block  4 , spacer sleeve  9 , sealed cowling  20  and closestool  21  are all made of plastic. The plurality of shaft pin holes  5  formed on the turnover supporting block  4  are designed for being adjusted in reference to the width of individual human body. The turnover supporting block  4  is placed on the electromotive bed after the shaft pins  6  being installed in the shaft pin holes if only the turnover supporting block  4  can be overturned normally. The load transfer device may be manufactured according to related art. The width of the turnover supporting block  4  may be selected in a range of 4-12 cm. The spray pipe  26  is connected to a tap water pipe through a solenoid electric valve, or to a tank watering manually through a water pump.  
         [0046]     The load transfer device for controlling turnover in this product can employ the existing mechanical transmission device or hydraulic transmission device, electric transmission mechanism, etc., and the commonly used gear transmission, worm gear transmission, worm screw transmission, etc. devices in the related art can be adopted.  
         [0047]     The lateral of the turnover supporting block  4  at the middle part of the electromotive bed is perpendicular to the axial line of the electromotive bed such an angle can ensure a comfortable sense during service. But the angle is not necessary to be 90 degree all the time. The turnover contact surface  8  should be lower than the surface of electromotive mattress, such a structure can ensure the air passing through the surface of the turnover supporting block  4  during regular use of the electromotive bed to realize ventilation as much as possible. Since the product has only 2-3 pieces of turnover supporting blocks  4 , it can guarantee the turnover of the user and the sufficient ventilation of most part of his back. More than two shaft pin holes  5  is used in the product, which can guarantee the product being able to overturn to either left or right to meet the requirements of the user.  
         [0048]     The porefilling pad  18  connects to the mechanical linkage device according with the existing mechanical connector principle. In the configuration of the product, the existing measure can be used to guarantee the porefilling pad  18  being either at a position to fill the hole  3  or a position beside one side of hole  3  under the electromotive mattress. The porefilling pad  18  is placed at hole  3  under normal condition. Since its thickness equal to that of the electromotive mattress, the porefilling pad  18  shall not affect the normal use. Start up the power installation if it is required for defecation, and the cross rod  32  drive sleeve,  31  to move under the action of the mechanical linkage device, thereby make the porefilling pad  18  moving under the electromotive bed and unclose the defecation hole for defecating.  
         [0049]     The front and rear inner walls of the sealed cowling  20  are installed with electrically controlled spray pipes  26 . Turn on the power to perform cleaning and then drying with warm air device while in use. And the inner wall of the sealed cowling  20  is also washed while water is sprayed to the relevant part of the human body during cleaning.  
         [0050]     To avoid the electromotive mattress being wetted during flushing, this product is mounted additionally with a spacer sleeve  9 . Since the top surface of the spacer sleeve  9  is lower than the surrounding mattress  1  and the porefilling pad  18  under normal condition, the human body is unlikely to contact with it while in decubitus. And when the porefilling pad  18  is moved away for defecation, the rump shall comprise the surrounding mattress  1  and contact with the moveable spacer sleeve  9 , and that the moveable spacer sleeve  9  shall displace a certain distance downward supported by the elastic force of the spring  19 .  
       EXAMPLE 2  
       [0051]     This example further provides a preferable scheme for the turnover part of the electromotive bed invention.  
         [0052]     As shown in  FIG. 7 , two crossbar shaft pin supporting plates  14  are installed correspondingly on the longer sidewalls of the through hole  2 , and the gullet is formed at the upside of the supporting palate  14 ; both ends of two shaft pin  6  set symmetrically protrude from the surface of the turnover supporting block  4  and are locked respectively in the gullets  15  on one end of the two shaft pin supporting plates  14 ; in such a way, the turnover supporting block  4  is clamped by two crossbar shaft pin supporting plates  14  and is installed stably and rotatablely on the electromotive bed through the shaft pin  6 . The width of the turnover supporting block  4  in this example is 6 cm.  
         [0053]     The load transfer device in this example includes a rotating shaft  22  fixed on the electromotive bed, and a deflector arm  17  and a first gear  23  are mounted around the rotating shaft  22 ; the end of the deflector arm  17  connects to a deflector rod  16  inserted into a slit  7 ; the first gear  23  engages with a first rack rod  24 , and one end of the first rack rod  24  connects to a first unit head  25  which can move back and forth in a straight line.  
         [0054]     The first unit head  25  drive the first rack rod  24  to move back and forth in a straight line, and the first rack rod  24  rotates backward and forward the first gear  23  engaged with it, and the rotating shaft  22  fixed on the first gear  23  drives the deflector arm  17  to waggle. In this way, the detector arm  17  drives the turnover supporting block  4  through the deflector rod  16  at one end of the deflector arm  17 , and the turnover supporting block  4  waggle with the left and right shaft pins  6  as the fulcraso that the turnover contact surface  8  at the top surface of turnover supporting block  4  lift up human body to turn over.  
         [0055]     The turnover contact surface  8  is made of soft material; symmetrical shaft pin holes  5  are formed on the turnover supporting block  4 . When the shaft pins  6  are inserted into different symmetric shaft pin holes  5 , the protruded length of the top surface of turnover supporting block  4  from the electromotive bed surface can be adjusted to adapt to different width of human body.  
         [0056]     The other parts are same as in example 1.  
       EXAMPLE 3  
       [0057]     This example further provides a preferable scheme for the defecation device of the electromotive bed according to the invention.  
         [0058]     As shown in  FIG. 8 , the porefilling pads  18  make rotatable connects rotatablely with a cross rod  32  through four sleeves  31  (each two as a group). The cross rod  32  integrated with the crank  33 , minor axis  34 , second gear  35  into one block and can rotate around the bearing block  37 .  
         [0059]     As shown in  FIG. 9 , the second rack rod  36  engages with the second gear  35 , and further connects to and second unit head  28  through the bearing rod  30 . The second unit head  28  drives the second rack rod  36  to move back and forth in a straight line, and make the second gear  35  to rotate back and forth and drive the crank  33  through the minor axis  34  fixed to the second gear  35 , and further drive the cross rod  32  to waggle. In this way, the sleeves  31  formed parallelly at both sides of the bottom surface of porefilling pad  18  waggle together with the cross rod  32  along a arc track. The plane determined by the axial lines of the two cross rods  32  are always parallel with the electromotive bed surface, during the motion since two cross rods  32  are always paralleling with each other, therefore, the porefilling pad  18  keeps its top surface upward during motion, and the porefilling pad  18  shall fill and level up the hole  3  of the electromotive mattress when it moves to a stop point, while the porefilling pad  18  shall withstand the soleplate of the electromotive bed surface and be compressed so as to hide under the soleplate at one side to avoid being contaminated when it moves to another stop point. Moreover, the porefilling pad  18  moves in a subvertical direction when closing the area of electromotive bed surface, which shall not exercise a detrimental effect.  
         [0060]     The other parts are same as in example 1.  
       EXAMPLE 4  
       [0061]     This example further provides a preferable scheme for the cleaning device of the electromotive bed according to the invention.  
         [0062]     As shown in  FIG. 10 , a hole  3  is opened at the middle section of the mattress  1 , and a spacer sleeve  9  which can move up and down in the hole  3  connects elastically to the soleplate of electromotive bed surface through the fixed part  13  and the springs  19 . The human body shall shift downward owing to the bearing surface area reducing when the porefilling pad  18  is moved, and the circumference of the rump contact the spacer sleeve  9  and compress the spring  19 . As to different body weights, spring  19  may automatically regulate the distribution of supporting force to human body by the spacer sleeve  9  and the elastic mattress  1  around to reduce the uncomfortableness of the human body.  
         [0063]     The spacer sleeve  9  can act as a sealing device to prevent the electromotive mattress from being contaminated during defecation and flushing. The top surface of the spacer sleeve  9  shall be lower than the electromotive bed surface and not contact human body while the porefilling pad  18  being closed. The sealed cowling  20  closely fitting to the soleplate of electromotive bed surface is under the spacer sleeve  9 , and the lower opening of the sealed cowling  20  is connected moveably and tightly to the closestool  21 .  
         [0064]     The minor axis  34  in the motion device of tie porefilling pad  18  passes through the sealed cowling  20  and the bearing block  37  respectively with its inner end connecting to the crank  33  and outer end to the second gear  35 , and can rotate around the bearing block  37 . In this way, the porefilling pad and the cranks, cross rods of the mechanical linkage device shall be within the sealed cowling.  
         [0065]     In this example, a water nozzle  26  which can rotate around the shaft  27  is installed at one side of the hole  3  opened on the soleplate of electromotive bed surface within the sealed cowling  20 . The water nozzle  26  shall be rotated to aim at the location to be flushed and start spraying while in operation, and the water nozzle  26  can wiggle in a small range to flush different location during spraying. The water nozzle  26  shall be rotated for 90 degrees and hidden at the lateral of hole  3  to avoid being contaminated after the operation.  
         [0066]     On the other hand, the sealed cowling  20  is opened with a window connected to a warm air assembly  29 , which includes: photocatalyst filter screen, an electric fan, heating cord and moveable throttle. The fan shall be tuned on to the high shift and the heating cord be powered on while performing drying after flushing. Here air enter into the warm air assembly  29  from the sealed cowling  20 , and pass through the filter screen, the electric fan and the heating cord, blow open the moveable throttle and finally blow to the rump of the human body. The heating cord shall not be powered on and the fan turned on to low shift while drying is not required. Here wind can not blow open the moveable throttle and the air only flows out from the circumference gap to realize the circulating deodorization and sterilization.  
         [0067]     The bottom of the defecation device in this invention can also be changed into a sewerage, and the water source for flushing may be connected to a tap water pipe or a water-storage tank watered manual. But the flushing water has to be turned into the water with moderate temperature by a temperature adjustable heater, and the temperature of warm air for drying should also be adjustable.  
         [0068]     The other parts are same as in example 1.