Combined nursing bed

Abstract

The invention relates to the technical field of nursing equipment, in particular to a combined nursing bed, a wheelchair is arranged in a bed body in a combined mode and can be separated from the bed body, the wheelchair is located on the side edge of the nursing bed in the length direction, the wheelchair comprises a plate body and a moving trolley, the plate body comprises a back plate, a cushion and a leg plate, and the plate body is horizontal with a bed plate when being in a horizontal state; a positioning groove is formed in the moving trolley, and a connecting through hole penetrates through the bottom of the positioning groove; the bed body is wider than the wheelchair and comprises a bed frame and a bed plate, a movable plate is slidably mounted in the center of the bed plate in the width direction of the bed plate, the movable plate and the top of the cushion are mounted in a combined mode, and a driving air cylinder is detachably mounted at the end, away from the wheelchair, of the movable plate, and strip-shaped protrusions matched with the positioning grooves are arranged on the side, close to the wheelchair, of the bed plate; the strip-shaped protrusions are distributed in the length direction of the bed body, and connecting mechanisms connected with the connecting penetrating holes are installed in the strip-shaped protrusions. The reset fault tolerance degree of the nursing bed used by the patient is improved, and the patient can be switched between the bed body and the wheelchair more quickly and conveniently.

Description

Technical Field

[0001] The present application relates to the technical field of nursing equipment, and in particular to a combined nursing bed. Background Art

[0002] With the continuous growth of the aging population, more and more elderly people are unable to take care of themselves completely. The number of disabled people caused by various disasters and diseases is also increasing year by year. They have different degrees of loss of ability. Traditional nursing beds can no longer fully meet the basic daily activity needs of the elderly and patients. Intelligent nursing beds with higher technical content are needed to meet the urgent desire of functionally disabled groups for self-care and independence. At present, most of the existing nursing beds are equipped with multiple movable bed boards on the existing bed body to help patients with their daily life in a manual or automatic way. However, the existing nursing beds are limited to simple activities of patients on the bed body, and they cannot leave the nursing bed. In addition, the functions are simple and require additional caregivers.

[0003] Chinese patent CN108670624A discloses a multifunctional wheelchair bed. It includes a bed frame, a wheelchair assembly, a bed board, a back board electric push rod, a leg board electric push rod and a foot board electric push rod; the multifunctional wheelchair bed provided by the present invention has the following advantages: the main posture change power component is hinged on the central frame, so that the wheelchair bed takes into account the rich posture change and bed-chair separation functions, the embedded wheelchair assumes the function of transporting the user and partial posture change, the central frame adopts three electric push rods to connect to the wheelchair base, and can be tilted forward and backward, flipped left and right, and raised and lowered as a whole, and the posture change is softer and richer, reducing the possibility of body compression and pressure sores caused by the rotation of the bed board.

[0004] The wheelchair in the above patent is pushed in from one end of the bed, and the wheelchair needs to be compared with the wheelchair entrance of the bed frame when entering the bed frame. The nursing bed has a low reset tolerance and is difficult to reset, resulting in inconvenience in use. Summary of the invention

[0005] In order to overcome the problems existing in the prior art, the present application provides a combined nursing bed.

[0006] The combined nursing bed provided in this application adopts the following technical solution:

[0007] A combined nursing bed comprises a bed body and a wheelchair, wherein the wheelchair is combinedly arranged in the bed body and can be separated from the bed body, the wheelchair adopts a foldable structure and is located at the side of the nursing bed in the length direction, the wheelchair comprises a plate body and a movable trolley at the bottom of the plate body, wherein the plate body comprises a back plate, a seat cushion and a leg plate, and is level with the bed board when the plate bodies are all in a horizontal state, a positioning groove is provided on the side of the movable trolley close to the bed body, and a connecting through hole for fixing the wheelchair on the bed board is also penetrated through the bottom of the positioning groove; the width of the bed body is larger than the wheelchair, and comprises a bed frame and a bed board, wherein a movable plate is slidably installed at the center position of the bed board along its width direction, and the movable plate can be assembled with the top of the seat cushion, and a driving cylinder for driving the movable plate to move is detachably installed at one end of the movable plate away from the wheelchair, and a strip protrusion adapted to the positioning groove is installed on the side of the bed board close to the wheelchair, wherein the strip protrusion is distributed along the length direction of the bed body, and a connecting mechanism connected to the connecting through hole is installed in the strip protrusion.

[0008] By adopting the above technical solution, the wheelchair combination in the combined nursing bed is arranged in the bed body. When the patient needs to transfer from the bed to the wheelchair, it can be directly completed by the foldable wheelchair deformation. The patient is directly transferred from the nursing bed to the wheelchair, and the wheelchair can be detached from the nursing bed to achieve the subsequent free movement of the wheelchair. When the nursing bed is used normally, the patient generally lies in the middle position of the nursing bed, that is, the side of the bed board close to the wheelchair. Therefore, a movable plate is set in the center of this place to support the patient's buttocks. Before moving the patient, the back plate and leg plate in the board body of the wheelchair are first driven to change from a horizontal state to a seat shape, and then the movable plate carrying the patient is driven by the driving cylinder on the bed board to move to the cushion of the wheelchair and combine with the cushion, so as to move the patient to the wheelchair, and then release the connection between the output end of the driving cylinder and the movable plate, and release the connection between the mobile trolley in the wheelchair and the connecting mechanism of the bed body, and then the patient can drive the wheelchair to move freely. When the patient needs to transfer from the wheelchair to the bed to rest, the patient drives the wheelchair close to the bed, the positioning groove on the mobile trolley in the wheelchair fits with the strip-shaped protrusion on the bed, the bed and the connecting perforations on the mobile trolley are fixedly connected through the connecting mechanism, and the trolley is driven to move to the corresponding position, the output end of the driving cylinder moves to the side of the cushion, the side of the movable plate on the cushion is fixedly connected to the output end of the driving cylinder, and then the movable plate and the patient on the movable plate are driven to move toward the bed under the action of the driving cylinder until the movable plate completely falls into the bed, thereby completing the transfer from the wheelchair to the bed, and finally the backboard and leg boards on the wheelchair are changed from a vertical state to a horizontal state, and the wheelchair completes the combination with the bed.

[0009] Preferably, a rotatable and liftable backrest is provided on one side of the bed body at the head, wherein the backrest is provided with a notch that matches the backboard of the wheelchair, and a slide groove with the same width as the notch is provided at the end of the backrest away from the seat cushion, wherein the slide groove is adapted to an extension plate at the end of the backboard away from the seat cushion, the thickness of the extension plate is smaller than the backboard, and when the backboard is in a horizontal state, the extension plate cooperates with the slide groove, and a gap is provided between the backboard and the end of the notch.

[0010] By adopting the above technical solution, the backrest board rotatably installed on the side of the bed body at the head can adjust the angle at which the patient lies down, especially when the patient needs to transfer from the bed body to the wheelchair, the backrest board can drive the patient on the bed body to change from a lying position to a sitting position, which is more convenient for transferring the patient. When the backrest board rotates upward, the backboard in the notch of the backrest board also rotates upward synchronously, and the backboard is changed from a horizontal state to a vertical state. The sliding groove opened at the end of the backrest board away from the seat cushion cooperates with the extension plate at the end of the backboard, and is used to support the backboard when the backrest board and the backboard are in a horizontal state, thereby reinforcing the position of the backboard on the backrest board and improving the stability of the wheelchair on the combined nursing bed.

[0011] Preferably, a lifting cylinder is installed at the bottom of the wheelchair seat cushion, and the back panel and leg panel are rotatably connected to the front and rear sides of the moving trolley through a driving mechanism, and the bottom of the seat cushion is connected to the back panel and leg panel through a linkage mechanism. When the seat cushion is lowered, the back panel and leg panel move to the side away from the seat cushion.

[0012] Preferably, the linkage mechanism includes a first slider and a third slider at the bottom of both sides of the seat cushion, wherein the first slider and the third slider are respectively provided with inclined surfaces facing the back panel and the leg panel, the first slider is linked with the second slider on the back panel, and the third slider is linked with the fourth slider on the leg panel, wherein the free ends of the second slider and the fourth slider are provided with inclined surfaces adapted to the free ends of the first slider and the third slider, and a groove for the movement of the linkage mechanism is provided on the top of the movable trolley.

[0013] Preferably, the driving mechanism includes a through hole opened along the width direction of the first slider at the bottom of the back plate and the third slider at the bottom of the leg plate, and the through hole is located on the side close to the seat cushion, a driving roller passes through the through hole, both ends of the driving roller are rotatably connected to the mounting frames on the front and rear sides of the moving trolley, and one end of the driving roller is driven by a reduction motor, and a ring array of teeth is provided on the surface of the driving roller, wherein a circumferential array on a side surface of the through hole close to the seat cushion has a rack meshing with the teeth on the surface of the driving roller, and the through hole is a flat structure distributed along the length direction of the wheelchair, and the length is the same as the moving distance of the second slider and the fourth slider.

[0014] By adopting the above technical solution, when the lifting cylinder installed at the bottom of the seat cushion drives the seat cushion to descend in summer, the first slider and the third slider at the bottom of the front and rear sides of the seat cushion respectively cooperate with the second slider and the fourth slider on the back panel and the leg panel through the inclined surfaces of their free ends, and the grooves opened on the moving trolley can limit the movement of the above sliders, driving the back panel and the leg panel to move to the side away from the seat cushion. During the movement of the backboard and the leg board, the driving roller in the through holes distributed along the width direction of the two boards moves accordingly, and the driving roller moves from the side of the through hole away from the seat cushion to the side close to the seat cushion. When the circumferentially arranged tooth grooves on the driving roller move to the side of the through hole close to the seat cushion, they can cooperate with the rack on the inner side wall of the through hole. The rack located on the upper and lower inner sides of the through hole is movably arranged, and the tooth grooves on the driving roller enter into the rack and can be squeezed and then rebound to be stuck in the slot on the driving roller. When the driving roller is driven to rotate, the rack is in a locked state, and the rack cannot slide out of the tooth grooves on the surface of the driving roller. When the backboard and the leg board are in a horizontal state, the rack is in an active state. When the backboard and the leg board move laterally, the driving roller can freely move in and out on the rack, thereby realizing the switching between the driving roller moving in the through holes in the backboard and the leg board and driving the backboard and the leg board to rotate, thereby satisfying the switching of the plate body on the wheelchair from a component of the nursing bed to the form of the wheelchair itself.

[0015] Preferably, the seat cushion is provided with snap-in grooves on both sides along the width direction, wherein the movable plate is provided with snap-in strips on both sides along the width direction, and when the back plate and the leg plate are rotated to a vertical state, the two sides of the movable plate can be clamped in the gaps between the seat cushion and the back plate and the leg plate respectively.

[0016] By adopting the above technical solution, the snap-in grooves on the seat cushion are located on both sides in the width direction thereof. When the wheelchair and the nursing bed are in an integrated state, the snap-in grooves can be hidden by the back panels and leg panels on the front and rear sides. When the wheelchair is taken out of the nursing bed and deformed separately, the back panels and leg panels on the front and rear sides of the seat cushion move away from the seat cushion and are driven to rotate to a vertical state through a driving mechanism, and then the movable panel is driven to move and cooperate with the seat cushion. The snap-in strips on both sides of the movable panel are fixed with the snap-in grooves on both sides of the seat cushion, and the position of the movable panel can be snapped in the gap between the seat cushion and the back panel and leg panel, thereby further fixing the position of the back panel and leg panel, and improving the overall stability when transformed into a wheelchair.

[0017] Preferably, the surface of the strip-shaped protrusion is provided with strip-shaped perforations distributed along the direction thereof, wherein a plurality of first magnetic sheets are evenly distributed on the outer surface of the strip-shaped protrusion, and a corresponding second magnetic sheet is installed on the inner wall of the positioning groove body, and the connecting mechanism includes a moving block in the strip-shaped perforation, the moving block is connected to the lead screw through a thread sleeve, a servo motor for driving the lead screw to rotate is installed at the end of the lead screw, a strip-shaped connecting rod is distributed along the width direction of the nursing bed on the moving block, a rack on the bottom surface of the strip-shaped connecting rod is meshed with a gear at the output end of the adjusting motor on the moving block for transmission, and a connecting rod guide tube for accommodating the strip-shaped connecting rod is also installed on the bed frame.

[0018] Preferably, ratchets are provided on both sides of the strip-shaped connecting rod, and a snap-in block adapted to the ratchet is provided in the connecting through hole, a reset spring is installed at the end of the snap-in block away from the ratchet, the snap-in block is rotatably connected in the connecting through hole, and a plurality of adjustment ropes that penetrate the reset spring and are connected to the free end of the snap-in block are also connected to the outside of the connecting through hole, wherein the outer end of the adjusting rope is provided with an unlocking cylinder to drive the stretching of the adjusting rope.

[0019] Preferably, a CCD camera is also installed on the side of the moving block close to the wheelchair, and the CCD camera is connected to the controller signal, and the controller is connected to the servo motor, the regulating motor and the unlocking cylinder signal.

[0020] By adopting the above technical solution, the first magnetic sheet on the surface of the strip-shaped protrusion can be adsorbed with the second magnetic sheet on it when the positioning groove on the moving trolley of the wheelchair is close to it, so as to make a preliminary connection between the wheelchair and the bed body, and then a moving block is slidably installed along the length direction of the strip-shaped through-hole opened on the strip-shaped protrusion, wherein the servo motor drives the lead screw at the output end to rotate, and the lead screw cooperates with the thread sleeve on the moving block for transmission, thereby driving the moving block to slide, and the CCD camera installed on the moving block can identify the position of the connecting through-hole on the moving trolley, and move the moving block to the position corresponding to the strip connecting rod and the connecting through-hole on it, and then the gear at the output end of the adjusting motor on the moving block is meshed with the rack on the bottom surface of the strip connecting rod for transmission. , driving the strip-shaped connecting rod into the connecting through-hole in the mobile trolley, the ratchets on both sides of the strip-shaped connecting rod can squeeze the clamping blocks on both sides of the connecting through-hole when the strip-shaped connecting rod enters the connecting through-hole, and the clamping blocks are compressed when being squeezed, and the clamping blocks are reset under the action of the reset spring, thereby limiting the strip-shaped connecting rod from sliding out of the connecting through-hole, and finally realizing the wheelchair being locked on the side of the bed body through the moving block, and by driving the movement of the moving block, the mobile trolley on the wheelchair can be accurately moved to the corresponding position, meeting the positioning requirements of the wheelchair when assembled with the bed body, and there is no need for the patient to operate the wheelchair to position with the bed body, thereby improving the convenience of the patient to use the nursing bed. And when the wheelchair is separated from the bed body, the unlocking cylinder can drive the adjustment rope that runs through the reset spring and connects the free end of the clamping block, driving the clamping block to compress the reset spring, and then the adjustment motor can drive the strip-shaped connecting rod to be taken out of the connecting through-hole, realizing the unlocking between the wheelchair and the bed body, and the whole process is controlled by the controller set in the bed body to control the coordinated work of various parts of the nursing bed.

[0021] Preferably, one end of the bed body near the end of the bed is rotatably connected to a tailboard combined with the wheelchair, and a connecting rod is installed on the inner side of the tailboard to be engaged with the L-shaped slot on the leg board, wherein both ends of the connecting rod are rotatably connected to the inner side surface of the tailboard, and a support plate is horizontally installed on the inner side of the tailboard, and the support plate is used to support both ends of the connecting rod, and the rotational connection between the tailboard and the bed body and between the connecting rod and the tailboard are driven by a motor.

[0022] By adopting the above technical solution, the tailboard rotatably connected to the rear of the bed can be rotated to open the tailboard when the wheelchair is separated from the bed, thereby expanding the operating space for the patient to move out of the nursing bed using the wheelchair. The clamping rod rotatably connected to the inner side of the tailboard can be clamped with the L-shaped slot on the legboard when the plate body on the wheelchair is in a horizontal state. During the deformation of the wheelchair, the fourth slider on the legboard is moved to the side away from the seat cushion by the action of the third slider on the seat cushion, and the position of the clamping rod is moved to the exit of the L-shaped slot, thereby unlocking the legboard, so that the legboard can be rotated from a horizontal state to a vertical state when the wheelchair is transformed.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The wheelchair part of the nursing bed of the present application is assembled by the side of the bed body. When the wheelchair enters the bed frame, the patient does not need to compare the wheelchair entrance of the bed frame. The mobile trolley at the bottom of the wheelchair can automatically and accurately move to the corresponding position, meeting the positioning requirements of the wheelchair when assembled with the bed body. The patient does not need to operate the wheelchair to position it with the bed body, which improves the reset tolerance of the patient when using the nursing bed and is more convenient to use.

[0025] 2. The present application realizes the conversion of the functions of the nursing bed and the wheelchair by carrying the patient on a movable plate or transferring the patient on the bed body and the wheel body, and cooperating with the deformation of the wheelchair on the side of the bed body, thereby improving the convenience of the patient's movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of a combined nursing bed;

[0027] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0028] Figure 3 It is a structural schematic diagram of a combined nursing bed with the top cover of the driving cylinder removed from the bed board;

[0029] Figure 4 It is a schematic diagram of the bottom structure of the leg board of a combined nursing bed;

[0030] Figure 5 It is a schematic diagram of the bottom structure of the backboard of a combined nursing bed;

[0031] Figure 6 It is a partial cross-sectional view of a mobile trolley of a combined nursing bed;

[0032] Figure 7 yes Figure 6 Enlarged view of point B in the middle;

[0033] Figure 8 yes Figure 6 Enlarged view of point C in the middle; Figure 6 Enlarged view of point B in the middle;

[0034] Fig. 9 It is a schematic diagram of the bottom side mechanism of a combined nursing bed;

[0035] Fig.10 yes Fig. 9 Enlarged view of point D in the middle;

[0036] Fig.11 The present invention is a structural schematic diagram of a combined nursing bed converted into a wheelchair state.

[0037] Description of the accompanying drawings: 1. bed body; 11. bed frame; 111. connecting rod guide tube; 12. bed board; 121. movable board; 1211. snap-in strip; 122. driving cylinder; 123. strip-shaped protrusion; 1231. strip-shaped perforation; 1232. first magnetic sheet; 13. backrest board; 131. notch; 132. slide groove; 14. tail board; 141. snap-in rod; 142. support board; 2. wheelchair; 3. board body; 31. backboard; 311. extension board; 32. cushion; 321. lifting cylinder; 322. snap-in groove; 33. leg board; 331. L-shaped slot; 4. mobile trolley; 41. positioning groove; 411 , strip-shaped connecting rod; 4111, ratchet; 412, adjusting motor; 42, connecting through hole; 421, clamping block; 422, return spring; 423, adjusting rope; 424, unlocking cylinder; 43, groove; 5, connecting mechanism; 51, moving block; 511, thread sleeve; 512, CCD camera; 52, lead screw; 53, servo motor; 6, driving mechanism; 61, through hole; 62, driving roller; 621, mounting bracket; 622, reduction motor; 623, rack; 624, tooth groove; 7, linkage mechanism; 71, first slider; 72, second slider; 73, third slider; 74, fourth slider; 8, controller. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-11 This application is described in further detail.

[0039] The embodiment of the present application discloses a combined nursing bed.

[0040] Reference Figure 1-Figure 11A combined nursing bed comprises a bed body 1 and a wheelchair 2, wherein the wheelchair 2 is assembled and arranged in the bed body 1 and can be separated from the bed body 1, the wheelchair 2 adopts a foldable structure and is located at the side of the nursing bed in the length direction, the wheelchair 2 comprises a plate body 3 and a mobile trolley 4 at the bottom of the plate body 3, wherein the plate body 3 comprises a back plate 31, a seat cushion 32 and a leg plate 33, and is level with the bed board 12 when the plate body 3 is in a horizontal state, a positioning groove 41 is provided on the side of the mobile trolley 4 close to the bed body 1, and a connecting through hole 42 for fixing the wheelchair 2 on the bed board 12 is also penetrated at the bottom of the positioning groove 41; The width of the bed body 1 is greater than that of the wheelchair 2, and the bed body 1 includes a bed frame 11 and a bed board 12, wherein a movable board 121 is slidably installed at the center of the bed board 12 along its width direction, and the movable board 121 can be assembled and assembled with the top of the cushion 32, and a driving cylinder 122 for driving the movable board 121 to move is detachably installed at one end of the movable board 121 away from the wheelchair 2, and a strip-shaped protrusion 123 adapted to the positioning groove 41 is installed on the side of the bed board 12 close to the wheelchair 2, wherein the strip-shaped protrusion 123 is distributed along the length direction of the bed body 1, and a connecting mechanism 5 connected to the connecting perforation 42 is installed in the strip-shaped protrusion 123. The wheelchair 2 in the combined nursing bed is assembled and arranged in the bed body 1, and when the patient needs to be transferred from the bed to the wheelchair 2, it can be directly completed by the deformation of the foldable wheelchair 2, and the patient is directly transferred from the nursing bed to the wheelchair 2, and the wheelchair 2 can be detached from the nursing bed, so that the wheelchair 2 can be moved freely thereafter. When the nursing bed is used normally, the patient generally lies in the middle position of the nursing bed, that is, on the side of the bed board 12 close to the wheelchair 2. Therefore, a movable plate 121 is set in the center of this place to support the patient's buttocks. Before moving the patient, the back plate 31 and the leg plate 33 in the plate body 3 on the wheelchair 2 are first driven to change from a horizontal state to a seat form, and then the movable plate 121 carrying the patient is driven by the driving cylinder 122 on the bed board 12 to move to the seat cushion 32 of the wheelchair 2 and combine with the seat cushion 32, so as to move the patient to the wheelchair 2, and then release the connection between the output end of the driving cylinder 122 and the movable plate 121, and release the connection between the moving trolley 4 in the wheelchair 2 and the connecting mechanism 5 of the bed body 1, and then the patient can drive the wheelchair 2 to move freely.When the patient needs to transfer from the wheelchair 2 to the bed 1 to rest, the patient drives the wheelchair 2 close to the bed 1, and the positioning groove 41 on the movable trolley 4 in the wheelchair 2 fits with the strip-shaped protrusion 123 on the bed 1. The bed 1 and the connecting through-hole 42 on the movable trolley 4 are fixedly connected through the connecting mechanism 5, and the trolley is driven to move to the corresponding position, and the output end of the driving cylinder 122 moves to the side of the seat cushion 32, and the side of the movable plate 121 on the seat cushion 32 is fixedly connected to the output end of the driving cylinder 122. Then, under the action of the driving cylinder 122, the movable plate 121 and the patient on the movable plate 121 are driven to move toward the bed 1 until the movable plate 121 completely falls into the bed 1, thereby completing the transfer from the wheelchair 2 to the bed 1, and finally the backboard 31 and the leg board 33 on the wheelchair 2 are changed from a vertical state to a horizontal state, and the wheelchair 2 completes the combination with the bed 1.

[0041] Reference Figure 1-Figure 11 A rotatable and liftable backrest board 13 is provided on one side of the bed body 1 at the head, wherein a notch 131 adapted to the back plate 31 of the wheelchair 2 is provided on the backrest board 13, and a slide groove 132 having the same width as the notch 131 is provided at one end of the backrest board 13 away from the seat cushion 32, wherein the slide groove 132 is adapted to an extension plate 311 at one end of the back plate 31 away from the seat cushion 32, the thickness of the extension plate 311 is less than the back plate 31, and when the back plate 31 is in a horizontal state, the extension plate 311 cooperates with the slide groove 132, and a gap is provided between the back plate 31 and the end of the notch 131. The backrest board 13 rotatably installed on the side of the bed body 1 located at the head can adjust the angle at which the patient lies down. Especially when the patient needs to transfer from the bed body 1 to the wheelchair 2, the backrest board 13 can drive the patient on the bed body 1 to change from a lying position to a sitting position, which is more convenient for the patient to transfer. When the backrest board 13 rotates upward, the backboard 31 in the notch 131 of the backrest board 13 also rotates upward synchronously, and the backboard 31 is changed from a horizontal state to a vertical state. The slide groove 132 opened at the end of the backrest board 13 away from the seat cushion 32 cooperates with the extension plate 311 at the end of the backboard 31, and is used to support the backboard 31 when the backrest board 13 and the backboard 31 are in a horizontal state, so as to reinforce the position of the backboard 31 on the backrest board 13 and improve the stability of the wheelchair 2 on the combined nursing bed.

[0042] Reference Figure 1-Figure 11A lifting cylinder 321 is installed at the bottom of the seat cushion 32 of the wheelchair 2, and the back plate 31 and the leg plate 33 are rotatably connected to the front and rear sides of the moving trolley 4 through the driving mechanism 6, and the bottom of the seat cushion 32 is connected to the back plate 31 and the leg plate 33 through the linkage mechanism 7. When the seat cushion 32 descends, the back plate 31 and the leg plate 33 move to the side away from the seat cushion 32. The linkage mechanism 7 includes a first slider 71 and a third slider 73 at the bottom of both sides of the seat cushion 32, wherein the first slider 71 and the third slider 73 are respectively provided with inclined surfaces facing the back plate 31 and the leg plate 33, the first slider 71 is linked with the second slider 72 on the back plate, and the third slider 73 is linked with the fourth slider 74 on the leg plate 33, wherein the free ends of the second slider 72 and the fourth slider 74 are provided with inclined surfaces adapted to the free ends of the first slider 71 and the third slider 73, and a groove 43 for the linkage mechanism 7 to move is provided at the top of the moving trolley 4. The driving mechanism 6 includes a through hole 61 opened along the width direction of the first slider 71 at the bottom of the back plate 31 and the third slider 73 at the bottom of the leg plate 33, and the through hole 61 is located on the side close to the seat cushion 32. A driving roller 62 passes through the through hole 61. Both ends of the driving roller 62 are rotatably connected to the mounting frames 621 on the front and rear sides of the moving trolley 4, and one end of the driving roller 62 is driven by a reduction motor 622. A ring array of teeth 624 is provided on the surface of the driving roller 62, wherein a circumferential array of racks 623 meshing with the teeth 624 on the surface of the driving roller 62 is provided on one side of the through hole 61 close to the seat cushion 32. The through hole 61 is a flat structure distributed along the length direction of the wheelchair 2, and its length is the same as the moving distance of the second slider 72 and the fourth slider 74. When the lifting cylinder 321 installed at the bottom of the seat cushion 32 drives the seat cushion 32 to descend in summer, the first slider 71 and the third slider 73 at the bottom of the front and rear sides of the seat cushion 32 respectively cooperate with the second slider 72 and the fourth slider 74 on the back plate 31 and the leg plate 33 through the inclined surfaces of their free ends, and the groove 43 opened on the moving trolley 4 can limit the movement of the above-mentioned sliders, driving the back plate 31 and the leg plate 33 to move to the side away from the seat cushion 32.During the movement of the back plate 31 and the leg plate 33, the driving roller 62 in the through hole 61 distributed along the width direction of the two moves accordingly, and the driving roller 62 moves from the side of the through hole 61 away from the seat cushion 32 to the side close to the seat cushion 32. When the circumferentially arranged tooth grooves 624 on the driving roller 62 move to the side of the through hole 61 close to the seat cushion 32, they can cooperate with the rack 623 on the inner side wall of the through hole 61, wherein the rack 623 located on the upper and lower inner side surfaces of the through hole 61 is movably arranged, and the tooth grooves 624 on the driving roller 62 enter the rack 623 to be squeezed and then rebound to be stuck on the driving roller 62. The rack 623 is in a locked state when the driving roller 62 is driven to rotate, and the rack 623 cannot slide out from the tooth groove 624 on the surface of the driving roller 62. When the back plate 31 and the leg plate 33 are in a horizontal state, the rack 623 is in an active state. When the back plate 31 and the leg plate 33 move laterally, the driving roller 62 can freely move in and out on the rack 623, thereby realizing the switching of the driving roller 62 between moving in the through hole 61 in the back plate 31 and the leg plate 33 and driving the back plate 31 and the leg plate 33 to rotate, thereby satisfying the switching of the plate body 3 on the wheelchair 2 from a component of the nursing bed to the form of the wheelchair 2 itself.

[0043] Reference Figure 1-Figure 11 The seat cushion 32 is provided with snap-in grooves 322 on both sides along the width direction, wherein the movable plate 121 is provided with snap-in strips 1211 on both sides along the width direction, and when the back plate 31 and the leg plate 33 are rotated to a vertical state, both sides of the movable plate 121 can be clamped in the gaps between the seat cushion 32 and the back plate 31 and the leg plate 33 respectively. The snap-in grooves 322 on the seat cushion 32 are located on both sides in the width direction thereof. When the wheelchair 2 and the nursing bed are in an integrated state, the snap-in grooves 322 can be hidden by the back panels 31 and the leg panels 33 on the front and rear sides. When the wheelchair 2 is deformed separately from the nursing bed, the back panels 31 and the leg panels 33 on the front and rear sides of the seat cushion 32 move away from the seat cushion 32 and are driven by the driving mechanism 6 to rotate to a vertical state, and then the movable plate 121 is driven to move and cooperate with the seat cushion 32. The snap-in strips 1211 on both sides of the movable plate 121 are fixedly cooperated with the snap-in grooves 322 on both sides of the seat cushion 32, and the position of the movable plate 121 can be snapped into the gap between the seat cushion 32 and the back panel 31 and the leg panel 33, thereby further fixing the position of the back panel 31 and the leg panel 33 and improving the overall stability when transformed into the wheelchair 2.

[0044] Reference Figure 1-Figure 11The surface of the strip-shaped protrusion 123 is provided with strip-shaped through holes 1231 distributed along the direction thereof, wherein a plurality of first magnetic sheets 1232 are evenly distributed on the outer surface of the strip-shaped protrusion 123, and a corresponding second magnetic sheet is installed on the inner wall of the positioning groove 41, the connecting mechanism 5 includes a moving block 51 in the strip-shaped through hole 1231, the moving block 51 is connected to the screw rod 52 through a wire sleeve 511, a servo motor 53 for driving the screw rod 52 to rotate is installed at the end of the screw rod 52, a strip-shaped connecting rod 411 is distributed along the width direction of the nursing bed on the moving block 51, and a rack 623 on the bottom surface of the strip-shaped connecting rod 411 is meshed with a gear at the output end of the adjusting motor 412 on the moving block 51 for transmission, wherein a connecting rod guide tube 111 for accommodating the strip-shaped connecting rod 411 is also installed on the bed frame 11. Ratchets 4111 are arranged on both sides of the strip connecting rod 411, and a clamping block 421 adapted to the ratchet 4111 is arranged in the connecting through hole 42, and a reset spring 422 is installed at one end of the clamping block 421 away from the ratchet 4111, and the clamping block 421 is rotatably connected in the connecting through hole 42, and a plurality of adjustment ropes 423 penetrating the reset spring 422 and connected to the free end of the clamping block 421 are also connected to the outside of the connecting through hole 42, wherein an unlocking cylinder 424 is arranged at the outer end of the adjustment rope 423 to drive the stretching of the adjustment rope 423. A CCD camera 512 is also installed on the side of the moving block 51 close to the wheelchair 2, and the CCD camera 512 is connected to the controller 8 by signal, and the controller 8 is connected to the servo motor 53, the adjustment motor 412 and the unlocking cylinder 424 by signal.The first magnetic sheet 1232 on the surface of the strip-shaped protrusion 123 can be attracted to the second magnetic sheet on the strip-shaped protrusion 123 when the positioning groove 41 on the moving trolley 4 of the wheelchair 2 is close to it, so as to make a preliminary connection between the wheelchair 2 and the bed body 1, and then a moving block 51 is slidably installed along the length direction of the strip-shaped through-hole 1231 opened on the strip-shaped protrusion 123, wherein the servo motor 53 drives the lead screw 52 at the output end to rotate, and the lead screw 52 cooperates with the wire sleeve 511 on the moving block 51 for transmission, thereby driving the moving block 51 to slide, and the CCD camera 512 installed on the moving block 51 can identify the position of the connecting through-hole 42 on the moving trolley 4, and move the moving block 51 to the position corresponding to the strip connecting rod 411 thereon and the connecting through-hole 42, and then the gear at the output end of the adjusting motor 412 on the moving block 51 meshes with the rack 623 on the bottom surface of the strip connecting rod 411 for transmission, driving the strip connecting rod 411 to rotate. The rod 411 enters the connecting through hole 42 in the mobile trolley 4. When the strip connecting rod 411 enters the connecting through hole 42, the ratchet teeth 4111 on both sides of the strip connecting rod 411 can squeeze the clamping blocks 421 on both sides of the connecting through hole 42. When the clamping blocks 421 are squeezed, the return springs 422 on the outside thereof are compressed. After the ratchet teeth 4111 pass through the corresponding clamping blocks 421, the clamping blocks 421 are reset under the action of the return springs 422, thereby limiting the strip connecting rod 411 from sliding out of the connecting through hole 42, and finally locking the wheelchair 2 on the side of the bed body 1 through the moving block 51, and driving the movement of the moving block 51 can drive the mobile trolley 4 on the wheelchair 2 to accurately move to the corresponding position, thereby meeting the positioning requirements of the wheelchair 2 when assembled with the bed body 1, and there is no need for the patient to operate the wheelchair 2 to position it with the bed body 1, thereby improving the convenience of the patient in using the nursing bed. And when the wheelchair 2 is separated from the bed body 1, the unlocking cylinder 424 can drive the adjustment rope 423 that passes through the return spring 422 and is connected to the free end of the clamping block 421, driving the clamping block 421 to compress the return spring 422, and then the adjustment motor 412 can drive the strip connecting rod 411 to be taken out from the connecting through hole 42, thereby realizing the unlocking between the wheelchair 2 and the bed body 1, and the whole process is controlled by the controller 8 arranged in the bed body 1 to control the coordinated work of various parts of the nursing bed.

[0045] Reference Figure 1-Figure 11The end of the bed body 1 near the end of the bed is rotatably connected with a tail plate 14 combined with the wheelchair 2, and a clamping rod 141 is installed on the inner side of the tail plate 14 to clamp the L-shaped clamping groove 331 on the leg plate 33, wherein the two ends of the clamping rod 141 are rotatably connected with the inner side of the tail plate 14, and a support plate 142 is installed horizontally on the inner side of the tail plate 14. The support plate 142 is used to support the two ends of the clamping rod 141, and the rotational connection between the tail plate 14 and the bed body 1, and between the clamping rod 141 and the tail plate 14 are driven by a motor. The tail plate 14 rotatably connected to the tail of the bed body 1 can be rotated to open the tail plate 14 when the wheelchair 2 is separated from the bed body 1, thereby expanding the operating space for the patient to move out of the nursing bed using the wheelchair 2. The engaging rod 141 rotatably connected to the inner side of the tail plate 14 can be engaged with the L-shaped engaging groove 331 on the leg plate 33 when the plate body 3 on the wheelchair 2 is in a horizontal state. During the deformation of the wheelchair 2, the fourth slider 74 on the leg plate 33 is moved to the side away from the seat cushion 32 by the action of the third slider 73 on the seat cushion 32, and the position of the engaging rod 141 is moved to the exit of the L-shaped engaging groove 331, thereby unlocking the leg plate 33, so that the leg plate 33 can be rotated from the horizontal state to the vertical state when the wheelchair 2 is transformed.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A combined nursing bed, comprising a bed body (1) and a wheelchair (2), wherein the wheelchair (2) is combinedly arranged in the bed body (1) and can be separated from the bed body (1), characterized in that: The wheelchair (2) adopts a foldable structure and is located on the side of the nursing bed in the length direction. The wheelchair (2) comprises a plate body (3) and a movable trolley (4) at the bottom of the plate body (3), wherein the plate body (3) comprises a back plate (31), a seat cushion (32) and a leg plate (33), and when the plate body (3) is in a horizontal state, it is level with the bed board (12). A positioning groove (41) is provided on a side of the movable trolley (4) close to the bed body (1), and a connecting through hole (42) for fixing the wheelchair (2) on the bed board (12) is also penetrated through the bottom of the positioning groove (41); The bed body (1) is wider than the wheelchair (2), and comprises a bed frame (11) and a bed board (12), wherein a movable board (121) is slidably mounted at the center of the bed board (12) along its width direction, and the movable board (121) can be assembled and mounted with the top of the seat cushion (32), and a driving cylinder (122) for driving the movable board (121) to move is detachably mounted at one end of the movable board (121) away from the wheelchair (2), and a strip-shaped protrusion (123) adapted to the positioning groove (41) is mounted on the side of the bed board (12) close to the wheelchair (2), wherein the strip-shaped protrusion (123) is distributed along the length direction of the bed body (1), and a connecting mechanism (5) connected to the connecting through hole (42) is mounted inside the strip-shaped protrusion (123).

2. A combined nursing bed according to claim 1, characterized in that: The bed body (1) is provided with a rotatable and liftable backrest board (13) at one side of the head, wherein a notch (131) adapted to the backrest board (31) of the wheelchair (2) is provided on the backrest board (13), and a slide groove (132) having the same width as the notch (131) is provided at one end of the backrest board (13) away from the seat cushion (32), wherein the slide groove (132) is adapted to an extension board (311) at one end of the backrest board (31) away from the seat cushion (32), wherein the thickness of the extension board (311) is smaller than that of the backrest board (31), and when the backrest board (31) is in a horizontal state, the extension board (311) cooperates with the slide groove (132), and a gap is provided between the backrest board (31) and the end of the notch (131).

3. A combined nursing bed according to claim 1, characterized in that: A lifting cylinder (321) is installed at the bottom of the seat cushion (32) of the wheelchair (2); the back plate (31) and the leg plate (33) are rotatably connected to the front and rear sides of the moving vehicle (4) through a driving mechanism (6); and the bottom of the seat cushion (32) is connected to the back plate (31) and the leg plate (33) through a linkage mechanism (7); when the seat cushion (32) is lowered, the back plate (31) and the leg plate (33) move to a side away from the seat cushion (32).

4. A combined nursing bed according to claim 3, characterized in that: The linkage mechanism (7) comprises a first slider (71) and a third slider (73) at the bottom of both sides of the seat cushion (32), wherein the first slider (71) and the third slider (73) are respectively provided with inclined surfaces facing the back plate (31) and the leg plate (33), the first slider (71) is linked with the second slider (72) on the back plate, and the third slider (73) is linked with the fourth slider (74) on the leg plate (33), wherein the free ends of the second slider (72) and the fourth slider (74) are provided with inclined surfaces adapted to the free ends of the first slider (71) and the third slider (73), and a groove (43) for the linkage mechanism (7) to move is provided on the top of the moving trolley (4).

5. The combined nursing bed according to claim 3, characterized in that: The driving mechanism (6) comprises a through hole (61) opened along the width direction of a first slider (71) at the bottom of the back plate (31) and a third slider (73) at the bottom of the leg plate (33), and the through hole (61) is located on a side close to the seat cushion (32). A driving roller (62) passes through the through hole (61), and both ends of the driving roller (62) are rotatably connected to mounting frames (621) at the front and rear sides of the moving trolley (4), and one end of the driving roller (62) is driven by a reduction motor (622). The surface of the driving roller (62) has a ring array of tooth grooves (624), wherein a circumferential array on a side surface of the through hole (61) close to the seat cushion (32) has a rack (623) meshing with the tooth grooves (624) on the surface of the driving roller (62), and the through hole (61) is a flat structure distributed along the length direction of the wheelchair (2), and the length is the same as the moving distance of the second slider (72) and the fourth slider (74).

6. A combined nursing bed according to claim 5, characterized in that: The seat cushion (32) is provided with snap-fit ​​grooves (322) on both sides along the width direction, wherein the movable plate (121) is provided with snap-fit ​​strips (1211) on both sides along the width direction, and when the back plate (31) and the leg plate (33) are rotated to a vertical state, the two sides of the movable plate (121) can be clamped in the gaps between the seat cushion (32) and the back plate (31) and the leg plate (33) respectively.

7. The combined nursing bed according to claim 1, characterized in that: The surface of the strip-shaped protrusion (123) is provided with strip-shaped through holes (1231) distributed along the direction thereof, wherein a plurality of first magnetic attraction sheets (1232) are evenly distributed on the outer surface of the strip-shaped protrusion (123), and a second magnetic attraction sheet corresponding thereto is installed on the inner wall of the positioning groove (41), and the connecting mechanism (5) comprises a moving block (51) in the strip-shaped through hole (1231), and the moving block (51) is connected to the screw rod (52) via a wire sleeve (511), A servo motor (53) for driving the screw rod (52) to rotate is installed at the end of the screw rod (52); a strip-shaped connecting rod (411) is distributed along the width direction of the nursing bed on the moving block (51); a rack (623) on the bottom surface of the strip-shaped connecting rod (411) is meshed with a gear at the output end of the regulating motor (412) on the moving block (51) for transmission; and a connecting rod guide tube (111) for accommodating the strip-shaped connecting rod (411) is also installed on the bed frame (11).

8. The combined nursing bed according to claim 7, characterized in that: Ratchets (4111) are arranged on both sides of the strip-shaped connecting rod (411), a clamping block (421) adapted to the ratchet (4111) is arranged in the connecting through hole (42), a return spring (422) is installed at one end of the clamping block (421) away from the ratchet (4111), the clamping block (421) is rotatably connected in the connecting through hole (42), and a plurality of adjustment ropes (423) penetrating the return spring (422) and connected to the free end of the clamping block (421) are also connected to the outer side of the connecting through hole (42), wherein the outer end of the adjustment rope (423) is provided with an unlocking cylinder (424) to drive the stretching of the adjustment rope (423).

9. The combined nursing bed according to claim 8, characterized in that: A CCD camera (512) is also installed on the side of the moving block (51) close to the wheelchair (2), and the CCD camera (512) is connected to the controller (8) by signal, and the controller (8) is connected to the servo motor (53), the adjustment motor (412) and the unlocking cylinder (424) by signal.

10. The combined nursing bed according to claim 1, characterized in that: The end of the bed body (1) close to the end of the bed is rotatably connected to a tailboard (14) combined with the wheelchair (2); a clamping rod (141) is mounted on the inner side of the tailboard (14) and is clamped to an L-shaped clamping groove (331) on the leg board (33); the two ends of the clamping rod (141) are rotatably connected to the inner side of the tailboard (14); a support plate (142) is mounted horizontally on the inner side of the tailboard (14); the support plate (142) is used to support the two ends of the clamping rod (141); and the rotational connection between the tailboard (14) and the bed body (1) and between the clamping rod (141) and the tailboard (14) is driven by a motor.

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