Multi-position rehabilitation bed

Abstract

The present invention provides a multi-posture rehabilitation bed, which includes a stretching and sitting-up assembly, a bridge motion assembly, a pedaling motion assembly, a sit-stand position change assembly, a footrest lifting assembly, and a bed body assembly. The pedaling motion assembly includes a pedaling support mechanism, a pull-down push rod, a pedaling shaft, a shaft connecting rod, a primary support rod, a primary push rod, an ear seat, a secondary support rod, a calf plate, a secondary transmission rod, and a secondary push rod. The present invention adjusts the rotation axis of the back plate through the stretching and sitting-up assembly to avoid joint injuries caused by different rotation centers of the rehabilitation mechanism and the user. The bridge motion assembly enables bridge-type rehabilitation of the user. The dynamic platform, the pulley assembly, and the adaptive arc rod cooperate to achieve adaptive fit between the hip plate and the user. The pedaling motion assembly only limits the position of the user's calf, better adapting to the user's joint axis. Through the cooperation of the various components, the user's posture transformation from lying to standing to sitting is achieved.

Description

Technical Field

[0001] The present invention belongs to the field of rehabilitation assistive devices, and in particular relates to a multi-posture rehabilitation bed for assisting rehabilitation training. Background Art

[0002] Most of the current auxiliary training equipment requires the help of professional nursing workers. Due to the heavy workload of auxiliary rehabilitation work, it is necessary to realize the automation of rehabilitation nursing beds. Currently, there are few existing rehabilitation training devices, which generally have single functions and lack a rehabilitation bed that can be controlled in multiple postures.

[0003] Patent publication number CN116138973A discloses an integrated intelligent composite rehabilitation bed, comprising a bed assembly, a wheelchair mechanism, a pedaling mechanism, a drive mechanism, and a control and detection system. This invention utilizes the coordination of these components to perform various rehabilitation movements and can also be converted into a wheelchair. However, the bridge and pedaling motions require the installation of additional mechanisms, and the axis of rotation cannot be adjusted, preventing the user's motion axis from aligning with the device's.

[0004] Patent publication number CN118078547A discloses a rehabilitation bed that facilitates patients to get up. It includes a bed body, a right auxiliary sliding block, a T-shaped shaft, a gripping rod, and an electric push rod. Through the cooperation of various parts, the rehabilitation patients can get up and lie down on their own. However, its application scenario is to assist patients to sit up, and its function is relatively simple.

[0005] Therefore, it is necessary to propose a multi-posture rehabilitation bed. Summary of the Invention

[0006] In response to the problems existing in the prior art, the present invention provides a multi-posture rehabilitation bed, which realizes the adjustment of the rotation axis of the backboard through the stretching and sitting-up component, thereby avoiding sports joint injuries caused by the different rotation centers of the rehabilitation mechanism and the user, realizes bridge-type rehabilitation movement through the bridge-type motion component, and realizes adaptive fit between the hip board and the user through the mutual cooperation of the moving platform, the pulley group and the adaptive arc rod, and only limits the position of the user's calf through the pedaling motion component to better adapt to the sports joint axis. Through the mutual cooperation of various components, the user's posture transformation from lying to standing to sitting can be realized.

[0007] The present invention provides a multi-posture rehabilitation bed, which includes a stretching and sitting-up component, a bridge motion component, a pedaling motion component, a sit-stand change component and a foot pad lifting component; the stretching and sitting-up component includes an upper body board component, a lifting mechanism and a bed board adjustment mechanism, the upper body board component is connected to the lifting mechanism through the bed board adjustment mechanism, the bed board adjustment mechanism includes a sit-up driving component, a sit-up rotating shaft, a diamond-shaped adjusting rod system, a horizontal screw rod, a horizontal motor, a vertical slide rod and a vertical slide trough frame, the first end of the sit-up rotating shaft is connected to the sit-up driving component, the diamond-shaped adjusting rod system is composed of four rods hinged end to end, the diamond-shaped adjusting rod system is connected to the first end of the sit-up rotating shaft The two ends are rotatably connected, and the two ends of the horizontal screw rod are rotatably connected to the diamond adjustment rod system respectively, the output shaft of the horizontal motor is connected to the horizontal screw rod, the first end of the vertical slide rod is connected to the second end of the sitting-up shaft, and the first end of the vertical slide frame is connected to the hinge pin of the diamond adjustment rod system; the bridge motion assembly includes a bridge push rod, a fixed platform, a bridge shaft, a bending rod, a moving platform, a front rod system, a side rod system, an adaptive arc rod, a pulley set and a hip board, the bridge push rod is rotatably connected to the bridge support frame of the bed assembly through a hinge seat, the first end face of the fixed platform is connected to the bridge support frame, and the two ends of the bridge shaft The cam is connected to the fixed platform through a bearing seat, the telescopic rod of the bridge push rod is rotatably connected to the bridge shaft through the bent rod, the movable platform and the fixed platform are floatingly connected through the front rod system, the movable platform is rotatably connected to the bridge shaft through the side rod system, the adaptive arc rod is slidably connected to the pulley set, and the hip plate is connected to the adaptive arc rod; the pedaling movement assembly includes a pedaling support mechanism, a pull-down push rod, a pedaling shaft, a shaft connecting rod, a first-level support rod, a first-level push rod, an ear seat, a second-level support rod, a calf plate, a second-level transmission rod and a second-level push rod, the pull-down push rod is rotatably connected to the bridge support frame of the bed assembly, the The two ends of the pedaling shaft are rotatably connected to the bridge support frame through bearing seats, the telescopic rod of the pull-down push rod is rotatably connected to the pedaling shaft through the shaft connecting rod, the first end of the first-level support rod is rotatably connected to the pedaling shaft, the first-level push rod is rotatably connected to the second end of the first-level support rod through the ear seat, the first end of the second-level support rod is rotatably connected to the telescopic rod of the first-level push rod, the calf plate is rotatably connected to the second end of the second-level support rod through the second-level transmission rod, the telescopic rod of the second-level push rod is rotatably connected to the second-level transmission rod, and the fixed ends of the second-level push rod are rotatably connected to the second-level support rod and the first-level support rod respectively.

[0008] Preferably, the sit-stand shift assembly includes an armrest base, a sliding sleeve, a swivel armrest, a seat plate, a seat plate support, an armrest, a sit-stand push rod and a sit-stand push rod bracket, the armrest base is arranged on the bridge support frame of the bed assembly, the sliding sleeve is connected to the armrest base through a flange, the swivel armrest is slidably connected to the sliding sleeve, the seat plate is connected to the armrest base through the seat plate support, the armrests are symmetrically arranged on both sides of the seat plate, the sit-stand push rod is connected to the bed base through the sit-stand push rod bracket, the telescopic rod of the sit-stand push rod is rotatably connected to the seat plate through a hinge seat; the seat plate support is rotatably connected to the pedaling shaft of the pedaling movement assembly, the sliding sleeve is provided with a groove, and the swivel armrest can slide and limit along the groove according to the trajectory.

[0009] Preferably, the foot pad lifting assembly includes a foot pad driving mechanism, a pedal component and a pad rod assembly, the pedal component is connected to the driving mechanism through the pad rod assembly, the foot pad driving mechanism includes a base plate, a base guide rail, a base slide, a base plate support, a foot pad reducer, a foot pad motor and a foot pad screw. The base guide rail is symmetrically arranged on the base, the slide is slidingly connected to the base guide rail, the base plate rod system support is respectively arranged at the four corners of the base plate, the foot pad reducer is arranged on the base plate, the output shaft of the foot pad motor passes through the base plate and is connected to the input shaft of the foot pad reducer, the foot pad screw is connected to the output shaft of the foot pad reducer, and the two ends of the foot pad screw are rotatably connected to the base plate through bearing seats.

[0010] Preferably, it also includes a bed assembly, which includes a bed base, a backboard support rod, a bridge support frame, a backboard translation module, a driving wheel and a steering wheel. The backboard support frame is arranged on one side of the bed base, the bridge support frame is arranged in the middle of the bed base, the backboard translation module is symmetrically arranged on the bed base, and the driving wheel and steering wheel are respectively arranged at the four corners of the bed base.

[0011] Preferably, the upper body panel component includes a back panel support rod, a back panel connecting piece, a back panel and a strap fixing rod, the back panel support rod is connected to the vertical slide frame in the bed panel adjustment assembly through the back panel connecting piece, the back panel is arranged on the back panel connecting piece, and the strap fixing rod is symmetrically arranged on one side of the back panel; the lifting mechanism includes a lifting base, an elevator, a lifting screw, a lifting motor and a lifting bracket, the first end face of the lifting base is connected to the slide table of the back panel translation module in the bed body assembly, the elevator is connected to the second end face of the lifting base, the first end of the lifting screw is rotatably connected to the output shaft of the elevator, the output shaft of the lifting motor is connected to the input shaft of the elevator, the second end of the lifting screw is rotatably connected to the lifting base, the lifting bracket is slidably connected to the lifting screw through a screw nut, and the lifting bracket is also slidably engaged with the lifting base.

[0012] Preferably, the raising and lowering driving component includes a raising and lowering reducer, a reducer bracket and a raising and lowering motor, the raising and lowering reducer is arranged on the lifting bracket of the lifting mechanism through the reducer bracket, the output shaft of the raising and lowering motor is connected to the input shaft of the raising and lowering reducer, and the second end of the vertical slide frame in the bed board adjustment assembly is slidably connected to the second end of the vertical slide rod.

[0013] Preferably, the front rod system includes a fixed rod, a first front rod and a second front rod, the first end of the fixed rod is connected to the fixed platform, the first end of the first front rod is connected to the second end of the fixed rod belt, the first end of the second front rod is connected to the second end of the first front rod, and the second end of the second front rod is rotatably connected to the moving platform; the side rod system includes a first side rod and a second side rod, the first end of the second side rod is connected to the bridge shaft, the first end of the second side rod is rotatably connected to the second end of the first side rod, and the second end of the second side rod is rotatably connected to the moving platform.

[0014] Preferably, the pulley group includes a first pulley and a second pulley, the first pulley is symmetrically arranged at the middle of both sides of the movable platform, the second pulley is symmetrically arranged at both ends of both sides of the movable platform, the adaptive arc rod is arranged between the first pulley and the second pulley, and the adaptive arc rod is slidingly connected to the first pulley and the second pulley respectively.

[0015] Preferably, the pedaling support mechanism includes a linear module, a module fixing frame, a leg board bracket and a leg board, the fixed end of the linear module is connected to the bridge support frame of the bed assembly through the module fixing frame, the leg board support frame is connected to the slider of the linear module, the leg board is engaged with the leg board bracket, the leg board is symmetrically provided with two rectangular long slots, and the calf board can move through the rectangular long slots.

[0016] Preferably, the pedal component includes a pedal, a pedal guide, a pedal slide and a pedal support, the pedal guide is symmetrically arranged on the pedal, the pedal slide is slidably connected to the pedal guide, and the pedal support is respectively arranged at the four corners of the pedal; the pad rod assembly includes a first pad rod, a second pad rod, a third pad rod, a fourth pad rod and a bracket rod, the first end of the first pad rod is rotatably connected to the base plate support, the first end of the second pad rod is rotatably connected to the second end of the first pad rod through the bracket rod, the second end of the second pad rod is rotatably connected to the pedal support, the first end of the third pad rod is rotatably connected to the base slide, the first end of the fourth pad rod is rotatably connected to the second end of the third pad rod through the bracket rod, the second end of the fourth pad rod is rotatably connected to the pedal slide, and the middle parts of the first pad rod and the third pad rod are rotatably connected through the bracket rod, and the middle parts of the second pad rod and the fourth pad rod are also rotatably connected through the bracket rod.

[0017] The characteristics and beneficial effects of the present invention are:

[0018] 1. The multi-posture rehabilitation bed of the present invention adjusts the rotation axis of the backboard by stretching the bedboard adjustment mechanism in the sit-up assembly, thereby avoiding discomfort and sports joint injuries caused by the different rotation centers of the rehabilitation mechanism and the user.

[0019] 2. The multi-posture rehabilitation bed of the present invention realizes bridge-type rehabilitation of the user through a bridge-type motion component, and realizes adaptive fit between the hip plate and the user through the mutual cooperation of the dynamic platform, the pulley group and the adaptive arc rod, thereby better reducing the discomfort caused by the asynchrony between the mechanism and the user, and realizing multi-degree-of-freedom movement through one drive, and the movement is more stable.

[0020] 3. The multi-posture rehabilitation bed of the present invention adopts a double-push rod drive for the pedaling movement component, which changes the traditional pedaling movement that requires a cumbersome external mechanism for assistance of pedals, and only limits the position of the user's calf, better adapting to the user's movement joint axis.

[0021] 4. The multi-posture rehabilitation bed of the present invention realizes the posture change of the user from lying to standing to sitting by cooperating with the stretching and sitting component, the sit-stand change component and the footrest lifting component. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the multi-posture rehabilitation bed of the present invention in a static state;

[0023] Figure 2 It is a schematic diagram of the overall structure of the stretch-up assembly of the present invention;

[0024] Figure 3 It is a schematic diagram of the overall structure of the bridge-type motion assembly of the present invention;

[0025] Figure 4 It is a partial structural schematic diagram of the bridge motion assembly of the present invention;

[0026] Figure 5 It is a schematic diagram of the overall structure of the pedaling motion assembly of the present invention;

[0027] Figure 6 It is a partial structural schematic diagram of the pedaling motion assembly of the present invention;

[0028] Figure 7 It is a partial structural diagram of the pedaling support assembly in the pedaling motion assembly of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the sit-stand position change assembly of the present invention;

[0030] Figure 9 This is a schematic diagram of the structure of the footrest lifting assembly of the present invention;

[0031] Figure 10 This is a structural diagram of the bed assembly of the present invention;

[0032] Figure 11 This is a schematic diagram of the structure of the present invention in a stretching sit-up state when in use;

[0033] Figure 12 This is a schematic diagram of the structure of the bridge motion state when the present invention is used;

[0034] Figure 13 This is a schematic diagram of the structure of the pedaling motion state when the present invention is used;

[0035] Figure 14 This is a schematic diagram of the structure of the present invention in a sitting position when in use;

[0036] Figure 15 It is a schematic structural diagram of the present invention in a standing state when in use.

[0037] Main reference numerals:

[0038] Stretch-up assembly 1, upper body plate component 11, back plate support rod 111, back plate connector 112, back plate 113, strap fixing rod 114, lifting mechanism 12, lifting base 121, lift 122, lifting screw 123, lifting motor 124, lifting bracket 125, bed board adjustment mechanism 13, sit-up drive component 131, sit-up reducer 1311, reducer bracket 1312, sit-up motor 1313, sit-up shaft 132, diamond adjustment rod system 133, horizontal screw 134, horizontal motor 135, vertical slide rod 136, vertical slide trough frame 137, bridge motion assembly 2, bridge push rod 201, fixed platform 202, bridge shaft 203, bending rod 204, moving platform 205, front rod system 206, fixed rod 2061, first front rod 2062, second front rod 2063, side rod system 207, first side rod 2071, second side rod 2072, adaptive arc rod 208, pulley set 209, first pulley 2091, second pulley 2092, hip plate 210, pedaling motion assembly 3, pedaling support mechanism 301, linear module 3011, module fixing frame 3012, leg plate Bracket 3013, leg plate 3014, pull-down push rod 302, pedaling shaft 303, shaft connecting rod 304, primary support rod 305, primary push rod 306, ear seat 307, secondary support rod 308, calf plate 309, secondary transmission rod 310, secondary push rod 311, sit-stand shifting assembly 4, armrest base 41, sliding sleeve 42, rotating armrest 43, seat plate 44, seat plate support 45, armrest 46, sit-stand push rod 47, sit-stand push rod bracket 48, footrest lifting assembly 5, footrest driving mechanism 51, bottom plate 511, base guide rail 512, base Slide 513, base plate support 514, foot pad reducer 515, foot pad motor 516, foot pad screw 517, reducer positioning plate 518, screw positioning plate 519, pedal component 52, pedal 521, pedal guide rail 522, pedal slide 523, pedal support 524, pad rod assembly 53, first pad rod 531, second pad rod 532, third pad rod 533, fourth pad rod 534, bracket rod 535, bed assembly 6, bed base 61, backboard support frame 62, bridge support frame 63, backboard translation module 64, drive wheel 65, steering wheel 66. DETAILED DESCRIPTION

[0039] To fully describe the technical content, structural features, objectives and effects of the present invention, the following is a detailed description with reference to the accompanying drawings.

[0040] The multi-posture rehabilitation bed of the present invention is a posture-adjustable rehabilitation device. Figure 1As shown, it includes a stretching and sitting-up component 1, a bridge motion component 2, a pedaling motion component 3, a sit-stand change component 4, a footrest lifting component 5 and a bed component 6. The bridge motion component 2 and the sit-stand change component 4 are both located in the upper middle part of the bed component 6, the stretching and sitting-up component 1 and the pedaling motion component 3 are respectively located on both sides of the bridge motion component 2, and the footrest lifting component 5 is located below the pedaling motion component 3.

[0041] like Figure 2 As shown, the stretching and sitting assembly 1 includes an upper body plate component 11, a lifting mechanism 12 and a bed plate adjustment mechanism 13. The upper body plate component 11 is connected to the lifting mechanism 12 through the bed plate adjustment mechanism 13. The upper body plate component 11 includes a back plate support rod 111, a back plate connector 112, a back plate 113 and a strap fixing rod 114. The back plate support rod 111 is connected to the vertical slide frame 137 in the bed plate adjustment assembly 13 through the back plate 113 connector 112. The back plate 113 is set on the back plate connector 12, and the strap fixing rod 114 is symmetrically set on one side of the back plate 113; the lifting mechanism 12 includes a lifting base 121, elevator 122, lifting screw 123, lifting motor 124 and lifting bracket 125, the first end surface of the lifting base 121 is connected to the slide of the back plate translation module of the bed assembly 6, the elevator 122 is connected to the second end surface of the lifting base 121, the first end of the lifting screw 123 is rotatably connected to the output shaft of the elevator 122, the output shaft of the lifting motor 124 is connected to the input shaft of the elevator 122, the second end of the lifting screw 123 is rotatably connected to the lifting base 121, the lifting bracket 125 is slidably connected to the lifting screw 123 through the screw nut, and the lifting bracket 125 It is also slidably engaged with the lifting base 121; the bed board adjustment mechanism 13 includes a sitting-up driving component 131, a sitting-up rotating shaft 132, a diamond-shaped adjusting rod system 133, a horizontal screw rod 134, a horizontal motor 135, a vertical slide rod 136 and a vertical slide trough frame 137. The first end of the sitting-up rotating shaft 132 is connected to the sitting-up driving component 131, the diamond-shaped adjusting rod system 133 is composed of four rods hinged end to end, the diamond-shaped adjusting rod system 133 is rotatably connected to the second end of the sitting-up rotating shaft 132, the two ends of the horizontal screw rod 134 are respectively rotatably connected to the diamond-shaped adjusting rod system 133, and the output shaft of the horizontal motor 135 is connected to the horizontal screw rod 134 is connected, the first end of the vertical slide rod 136 is connected to the second end of the lifting shaft 132, the first end of the vertical slide frame 137 is connected to the hinge pin of the diamond adjustment rod system 133, and the second end of the vertical slide frame 137 is slidingly connected to the second end of the vertical slide rod 136; the lifting drive component 131 includes a lifting reducer 1311, a reducer bracket 1312 and a lifting motor 1313, the lifting reducer 1311 is arranged on the lifting bracket 125 of the lifting mechanism 12 through the reducer bracket 1312, and the output shaft of the lifting motor 1313 is connected to the input shaft of the lifting reducer 1311.

[0042] like Figure 3 and Figure 4 As shown, the bridge motion assembly 2 includes a bridge push rod 201, a fixed platform 202, a bridge shaft 203, a bending rod 204, a moving platform 205, a front rod system 206, a side rod system 207, an adaptive arc rod 208, a pulley set 209 and a hip plate 210. The bridge push rod 201 is rotatably connected to the bridge support frame 63 of the bed assembly 6 through a hinge seat, the first end face of the fixed platform 202 is connected to the bridge support frame 63, and the two ends of the bridge shaft 203 are rotatably connected to the fixed platform 202 through a bearing seat. The telescopic rod 201 is rotatably connected to the bridge shaft 203 through the bent rod 204, the movable platform 205 is floatingly connected to the fixed platform 202 through the front rod system 206, the movable platform 205 is rotatably connected to the bridge shaft 203 through the side rod system 207, the adaptive arc rod 208 is slidably connected to the pulley group 209, and the hip plate 210 is connected to the adaptive arc rod 208; the front rod system 206 includes a fixed rod 2061, a first front rod 2062 and a second front rod 2063, and the first end of the fixed rod 2061 is connected to the fixed platform 202 is connected, the first end of the first front rod 2062 is connected to the second end of the fixed rod 2061, the first end of the second front rod 2063 is connected to the second end of the first front rod 2062, the second end of the second front rod 2063 is rotatably connected to the moving platform 205, the side rod system 207 includes a first side rod 2071 and a second side rod 2072, the first end of the second side rod 2072 is connected to the bridge shaft 203, the first end of the second side rod 2072 is rotatably connected to the second end of the first side rod 2071 Dynamic connection, the second end of the second side rod 2072 is rotatably connected to the moving platform 205; the pulley group 209 includes a first pulley 2091 and a second pulley 2092, the first pulley 2091 is symmetrically arranged in the middle of both sides of the moving platform 205, and the second pulley 2092 is symmetrically arranged at both ends of both sides of the moving platform 205, and the adaptive arc rod 208 is arranged between the first pulley 2091 and the second pulley 2092, and the adaptive arc rod 208 is slidingly connected to the first pulley 2091 and the second pulley 2092 respectively.

[0043] like Figures 5 to 7As shown, the pedaling motion assembly 3 includes a pedaling support mechanism 301, a pull-down push rod 302, a pedaling shaft 303, a shaft connecting rod 304, a first-level support rod 305, a first-level push rod 306, an ear seat 307, a second-level support rod 308, a calf plate 309, a second-level transmission rod 310 and a second-level push rod 311. The pull-down push rod 302 is rotatably connected to the bridge support frame 63 of the bed assembly 6, and both ends of the pedaling shaft 303 are rotatably connected to the bridge support frame 63 through a bearing seat. The telescopic rod of the pull-down push rod 302 is rotatably connected to the pedaling shaft 303 through the shaft connecting rod 304. The first end of the first-level support rod 305 is rotatably connected to the pedaling shaft 303. The first-level push rod 306 is rotatably connected to the second end of the first-level support rod 305 through the ear seat 307. The first end of the second-level support rod 308 is rotatably connected to the telescopic rod of the first-level push rod 306. The calf plate 309 is connected to the second-level support rod 303 through the second-level transmission rod 310. The second end of 8 is rotatably connected, the telescopic rod of the secondary push rod 311 is rotatably connected to the secondary transmission rod 310, and the fixed end of the secondary push rod 311 is rotatably connected to the secondary support rod 308 and the primary support rod 305 respectively; the pedaling support mechanism 301 includes a linear module 3011, a module fixing frame 3012, a leg board bracket 3013 and a leg board 3014, the fixed end of the linear module 3011 is connected to the bridge support frame 63 of the bed assembly 6 through the module fixing frame 3012, the leg board support frame 3013 is connected to the slider of the linear module 3011, the leg board 3014 is engaged with the leg board bracket 3013, the leg board 3014 is symmetrically provided with two rectangular long slots, the calf board 309 can move through the rectangular long slots, the calf board 309 is provided with a strap for fixing the calf, the calf strap can fix the user's calf so that it can complete rehabilitation exercises together, and the calf board 309 and the leg board 3014 can be flipped 90 degrees together.

[0044] like Figure 8As shown, the sit-stand displacement assembly 4 includes an armrest base 41, a sliding sleeve 42, a rotating armrest 43, a seat plate 44, a seat plate support 45, an armrest 46, a sit-stand push rod 47 and a sit-stand push rod bracket 48. The armrest base 41 is arranged on the bridge support frame 63 of the bed assembly 6, the sliding sleeve 42 is connected to the armrest base 41 through a flange, the rotating armrest 43 is slidably connected to the sliding sleeve 42, the seat plate 44 is connected to the armrest base 41 through the seat plate support 45, the armrests 46 are symmetrically arranged on both sides of the seat plate 44, and the sit-stand push rod 47 is connected to the sit-stand push rod bracket 48. The rod bracket 48 is connected to the bed base 61, and the telescopic rod of the sit-stand push rod 47 is rotatably connected to the seat 44 through a hinge seat; the seat support 48 is rotatably connected to the pedaling shaft 303 of the pedaling motion component 3, and the sliding sleeve 42 is provided with a groove, and the rotating armrest 43 can slide and limit along the groove according to the trajectory; a force sensor is provided on the armrest 46 to detect the pulling force required by the user during the sit-up process, and a sensor can be provided to detect the real-time changes of various indicators such as heart rate, blood oxygen and blood pressure during the user's stretching process, which can provide certain assistance for the sit-up exercise.

[0045] like Figure 9As shown, the footrest lifting assembly 5 includes a footrest driving mechanism 51, a pedal component 52 and a pad rod assembly 53. The pedal component 52 is connected to the footrest driving mechanism 51 through the pad rod assembly 53. The footrest driving mechanism 51 includes a base plate 511, a base guide rail 512, a base slide 513, a base support 514, a footrest reducer 515, a footrest motor 516 and a footrest screw 517. The base guide rail 512 is symmetrically arranged on the base, the slide is slidably connected to the base guide rail 512, and the base plate 511 rod system support They are respectively arranged at the four corners of the base plate 511, the foot pad reducer 515 is arranged on the base plate 511, the output shaft of the foot pad motor 516 passes through the base plate 511 and is connected to the input shaft of the foot pad reducer 515, the foot pad screw 517 is connected to the output shaft of the foot pad reducer 515, and the two ends of the foot pad screw 517 are rotatably connected to the base plate 511 through the bearing seat; the pedal component 52 includes a pedal 521, a pedal guide 522, a pedal slide 523 and a pedal support 524, and the pedal guide 522 is symmetrical The pedal 521 is provided with a pedal slide 523 and a pedal guide rail 522 in sliding connection, and the pedal support 524 is respectively provided at the four corners of the pedal 521; the pad rod assembly 53 includes a first pad rod 531, a second pad rod 532, a third pad rod 533, a fourth pad rod 534 and a bracket rod 535, the first end of the first pad rod 531 is rotatably connected to the bottom plate support 514, the first end of the second pad rod 532 is rotatably connected to the second end of the first pad rod 531 through the bracket rod 535, and the second pad rod 533 is rotatably connected to the second end of the first pad rod 531 through the bracket rod 535. The second end of 32 is rotatably connected to the pedal support 524, the first end of the third pad rod 533 is rotatably connected to the base slide 513, the first end of the fourth pad rod 534 is rotatably connected to the second end of the third pad rod 533 through the bracket rod 535, the second end of the fourth pad rod 534 is rotatably connected to the pedal slide 523, and the middle parts of the first pad rod 531 and the third pad rod 533 are rotatably connected through the bracket rod 535, and the middle parts of the second pad rod 532 and the fourth pad rod 534 are also rotatably connected through the bracket rod 535.

[0046] like Figure 10 As shown, the bed assembly 6 includes a bed base 61, a backboard support frame 62, a bridge support frame 63, a backboard translation module 64, a driving wheel 65 and a steering wheel 66. The backboard support frame 62 is arranged on one side of the bed base 61, the bridge support frame 63 is arranged in the middle of the bed base 61, the backboard translation module 64 is symmetrically arranged on the bed base 61, and the driving wheel 65 and the steering wheel 66 are respectively arranged at the four corners of the bed base 61.

[0047] The following is a further description of a multi-position rehabilitation bed of the present invention in conjunction with an embodiment. The use process of the multi-position rehabilitation bed of the present invention is as follows:

[0048] like Figure 11As shown, when using the stretching and sit-up assembly 1 to perform stretching and sit-up rehabilitation exercises, first, the lifting frame is rotated and lifted by the lifting screw rod 123 of the lifting mechanism 12 to change the height of the upper body board component 11 and the bed board adjustment mechanism 13, and then the shape of the diamond adjustment rod system 133 is changed by adjusting the horizontal screw rod 134 of the bed board adjustment mechanism 13 to change the height of the sit-up shaft 132, the sit-up drive component 131, and the backboard 113 so that they are flush with the leg board bracket 3013, so that the sit-up shaft 132 and the user's sit-up movement shaft coincide with each other.

[0049] The upper body panel component 11 is rotated around the sit-up rotation axis 132 through the sit-up driving component 131, and the upper body panel component 11 pushes the user's back to perform stretching sit-up exercises. In particular, the user can grab the armrest 46 in the sit-to-stand change component 4 to assist in stretching sit-up.

[0050] like Figure 12 As shown, when performing bridge exercises, the bridge shaft 203 is pulled to rotate by the bridge push rod 201, and the moving platform 205 is pulled downward by the front rod system 206 and the side rod system 207. At the same time, the adaptive arc rod 208 rotates around the pulley set 209, completing the movement of the user's buttocks fitting the buttocks plate 210.

[0051] like Figure 13 As shown, when pedaling, the pull-down push rod 302 maintains a fixed position and does not change, the first-level push rod 306 and the second-level push rod 311 cooperate to move to push the calf plate 309 to pedal, and the first-level support rod 305 moves with the pull-down push rod 302. When the pedaling motion component 3 is lowered as a whole, the pull-down push rod 302 moves with the first-level support rod 305, and can be lowered to the leg plate 3014 at most to be placed vertically.

[0052] like Figure 14 As shown, when performing the overall sitting-up movement, the backboard 113 is first lifted through the above-mentioned stretching sitting-up movement, and the pedal shaft 303 is pulled to rotate around the bearing seat by pulling down the push rod 302 to complete the transformation from lying to sitting position, and the footrest screw rod 517 rotates around the footrest reducer 515 to drive the base slide 513 to move along the base guide rail 512, thereby driving the movement of the lifting rod mechanism 53 to realize the movement of the pedal component 52, and then fit with the sole of the user's foot.

[0053] like Figure 15 As shown, when performing the movement from sitting to standing, the sit-to-stand push rod 47 pushes the seat plate 44 to rotate around the pedaling shaft 303, and at the same time the back plate translation module 64 moves horizontally, and the lifting screw 123 pushes the lifting bracket 125 to move so that the back plate 113 and the seat plate 44 fit together, completing the position change from sitting to standing.

[0054] The multi-posture rehabilitation bed of the present invention adjusts the rotation axis of the backboard 113 through the stretching and sitting-up component 1, avoiding sports joint injuries caused by the different rotation centers of the rehabilitation mechanism and the user, realizes the bridge-type rehabilitation of the user through the bridge-type motion component 2, and realizes the adaptive fit of the hip plate 210 to the user through the mutual cooperation of the dynamic platform 205, the pulley group 209 and the adaptive arc rod 208. The pedaling motion component 3 only limits the position of the user's calf, better adapting to the user's sports joint axis, and through the mutual cooperation of various components, the user's posture transformation from lying to standing to sitting is realized.

[0055] The embodiments described above are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A multi-posture rehabilitation bed, characterized in that: It includes a stretching and sit-up component, a bridge exercise component, a pedaling exercise component, a sit-to-stand change component and a foot lift component; The stretching and sitting assembly includes an upper body board component, a lifting mechanism and a bed board adjusting mechanism, the upper body board component is connected to the lifting mechanism through the bed board adjusting mechanism, and the bed board adjusting mechanism includes a sitting driving component, a sitting rotating shaft, a diamond adjusting rod system, a horizontal screw rod, a horizontal motor, a vertical slide rod and a vertical slide frame, the first end of the sitting rotating shaft is connected to the sitting driving component, the diamond adjusting rod system is composed of four rods hinged end to end, the diamond adjusting rod system is rotatably connected to the second end of the sitting rotating shaft, the two ends of the horizontal screw rod are respectively rotatably connected to the diamond adjusting rod system, the output shaft of the horizontal motor is connected to the horizontal screw rod, the first end of the vertical slide rod is connected to the second end of the sitting rotating shaft, and the first end of the vertical slide frame is connected to the hinge pin of the diamond adjusting rod system; The bridge motion assembly comprises a bridge push rod, a fixed platform, a bridge shaft, a bent rod, a movable platform, a front rod system, a side rod system, an adaptive arc rod, a pulley set and a hip plate. The bridge push rod is rotatably connected to the bridge support frame of the bed assembly through a hinge seat. The first end face of the fixed platform is connected to the bridge support frame. The two ends of the bridge shaft are rotatably connected to the fixed platform through a bearing seat. The telescopic rod of the bridge push rod is rotatably connected to the bridge shaft through the bent rod. The movable platform is floatingly connected to the fixed platform through the front rod system. The movable platform is rotatably connected to the bridge shaft through the side rod system. The adaptive arc rod is slidably connected to the pulley set, and the hip plate is connected to the adaptive arc rod. The pedaling movement assembly includes a pedaling support mechanism, a pull-down push rod, a pedaling shaft, a shaft connecting rod, a first-level support rod, a first-level push rod, an ear seat, a second-level support rod, a calf board, a second-level transmission rod and a second-level push rod. The pull-down push rod is rotatably connected to the bridge support frame of the bed assembly, and the two ends of the pedaling shaft are rotatably connected to the bridge support frame through a bearing seat. The telescopic rod of the pull-down push rod is rotatably connected to the pedaling shaft through the shaft connecting rod. The first end of the first-level support rod is rotatably connected to the pedaling shaft, and the first-level push rod is rotatably connected to the second end of the first-level support rod through the ear seat. The first end of the secondary support rod is rotatably connected to the telescopic rod of the first-level push rod, and the calf board is rotatably connected to the second end of the secondary support rod through the secondary transmission rod. The telescopic rod of the secondary push rod is rotatably connected to the secondary transmission rod, and the fixed ends of the secondary push rod are rotatably connected to the secondary support rod and the first-level support rod respectively.

2. The multi-posture rehabilitation bed according to claim 1, characterized in that: The sit-stand shift assembly includes an armrest base, a sliding sleeve, a rotating armrest, a seat plate, a seat plate support, an armrest, a sit-stand push rod and a sit-stand push rod bracket. The armrest base is arranged on the bridge support frame of the bed assembly, the sliding sleeve is connected to the armrest base through a flange, the rotating armrest is slidably connected to the sliding sleeve, the seat plate is connected to the armrest base through the seat plate support, the armrests are symmetrically arranged on both sides of the seat plate, the sit-stand push rod is connected to the bed base through the sit-stand push rod bracket, the telescopic rod of the sit-stand push rod is rotatably connected to the seat plate through a hinge seat; the seat plate support is rotatably connected to the pedaling shaft of the pedaling motion assembly, the sliding sleeve is provided with a groove, and the rotating armrest can slide and limit along the groove according to the track.

3. The multi-posture rehabilitation bed according to claim 1, characterized in that: The foot pad lifting assembly includes a foot pad driving mechanism, a pedal component and a pad rod assembly. The pedal component is connected to the driving mechanism through the pad rod assembly. The foot pad driving mechanism includes a base plate, a base guide rail, a base slide, a base plate support, a foot pad reducer, a foot pad motor and a foot pad screw. The base guide rail is symmetrically arranged on the base, the slide is slidingly connected to the base guide rail, the base plate rod system support is respectively arranged at the four corners of the base plate, the foot pad reducer is arranged on the base plate, the output shaft of the foot pad motor passes through the base plate and is connected to the input shaft of the foot pad reducer, the foot pad screw is connected to the output shaft of the foot pad reducer, and the two ends of the foot pad screw are rotatably connected to the base plate through the bearing seat.

4. The multi-posture rehabilitation bed according to claim 1, characterized in that: It also includes a bed assembly, which includes a bed base, a backboard support rod, a bridge support frame, a backboard translation module, a driving wheel and a steering wheel. The backboard support frame is arranged on one side of the bed base, the bridge support frame is arranged in the middle of the bed base, the backboard translation module is symmetrically arranged on the bed base, and the driving wheel and steering wheel are respectively arranged at the four corners of the bed base.

5. The multi-posture rehabilitation bed according to claim 1, characterized in that: The upper body panel component includes a back panel support rod, a back panel connecting piece, a back panel and a strap fixing rod, the back panel support rod is connected to the vertical slide frame in the bed panel adjustment assembly through the back panel connecting piece, the back panel is arranged on the back panel connecting piece, and the strap fixing rod is symmetrically arranged on one side of the back panel; the lifting mechanism includes a lifting base, an elevator, a lifting screw, a lifting motor and a lifting bracket, the first end face of the lifting base is connected to the slide table of the back panel translation module in the bed body assembly, the elevator is connected to the second end face of the lifting base, the first end of the lifting screw is rotatably connected to the output shaft of the elevator, the output shaft of the lifting motor is connected to the input shaft of the elevator, the second end of the lifting screw is rotatably connected to the lifting base, the lifting bracket is slidably connected to the lifting screw through a screw nut, and the lifting bracket is also slidably engaged with the lifting base.

6. The multi-posture rehabilitation bed according to claim 1, characterized in that: The raising and lowering driving component includes a raising and lowering reducer, a reducer bracket and a raising and lowering motor. The raising and lowering reducer is arranged on the lifting bracket of the lifting mechanism through the reducer bracket. The output shaft of the raising and lowering motor is connected to the input shaft of the raising and lowering reducer. The second end of the vertical slide frame in the bed board adjustment assembly is slidably connected to the second end of the vertical slide rod.

7. The multi-posture rehabilitation bed according to claim 1, characterized in that: The front rod system includes a fixed rod, a first front rod and a second front rod, the first end of the fixed rod is connected to the fixed platform, the first end of the first front rod is connected to the second end of the fixed rod belt, the first end of the second front rod is connected to the second end of the first front rod, and the second end of the second front rod is rotatably connected to the moving platform. The side rod system includes a first side rod and a second side rod, the first end of the second side rod is connected to the bridge shaft, the first end of the second side rod is rotatably connected to the second end of the first side rod, and the second end of the second side rod is rotatably connected to the moving platform.

8. The multi-posture rehabilitation bed according to claim 1, characterized in that: The pulley group includes a first pulley and a second pulley, the first pulley is symmetrically arranged in the middle of both sides of the movable platform, the second pulley is symmetrically arranged at both ends of both sides of the movable platform, the adaptive arc rod is arranged between the first pulley and the second pulley, and the adaptive arc rod is slidingly connected to the first pulley and the second pulley respectively.

9. The multi-posture rehabilitation bed according to claim 1, characterized in that: The pedaling support mechanism includes a linear module, a module fixing frame, a leg board bracket and a leg board. The fixed end of the linear module is connected to the bridge support frame of the bed assembly through the module fixing frame. The leg board support frame is connected to the slider of the linear module. The leg board is engaged with the leg board bracket. The leg board is symmetrically provided with two rectangular long slots, and the calf board can move through the rectangular long slots.

10. The multi-posture rehabilitation bed according to claim 3, characterized in that: The pedal component includes a pedal, a pedal guide, a pedal slide and a pedal support, the pedal guide rail is symmetrically arranged on the pedal, the pedal slide is slidably connected to the pedal guide rail, and the pedal support is respectively arranged at the four corners of the pedal; the pad rod assembly includes a first pad rod, a second pad rod, a third pad rod, a fourth pad rod and a bracket rod, the first end of the first pad rod is rotatably connected to the base plate support, the first end of the second pad rod is rotatably connected to the second end of the first pad rod through the bracket rod, the second end of the second pad rod is rotatably connected to the pedal support, the first end of the third pad rod is rotatably connected to the base slide, the first end of the fourth pad rod is rotatably connected to the second end of the third pad rod through the bracket rod, the second end of the fourth pad rod is rotatably connected to the pedal slide, and the middle parts of the first pad rod and the third pad rod are rotatably connected through the bracket rod, and the middle parts of the second pad rod and the fourth pad rod are also rotatably connected through the bracket rod.

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