Rehabilitation training equipment

Abstract

The invention discloses rehabilitation training equipment, and relates to the technical field of medical equipment.The rehabilitation training equipment comprises a bed table, a seat plate is arranged at the position, located at a bed head, of the upper portion of the bed table, a cavity is formed in the position, located on one side of the seat plate, of the interior of the bed table, the upper portion of the cavity is open, and a leg stretcher is arranged in the cavity; movable bed boards are arranged on the two sides of the bed table, limiting grooves are formed in the positions, close to the lower portions, of the two sides of the bed table, a folding and unfolding driver is installed on the bottom side of the interior of the cavity, the leg stretching devices and the movable bed boards are driven by the folding and unfolding driver to move, and free switching between a rehabilitation training mode and a rest mode is achieved. According to the rehabilitation training equipment, opening and closing of the half bed plate and stretching of the leg stretcher are achieved through cooperation of the rotating air cylinder and the rotating disc, so that the equipment can serve as a rehabilitation training tool and can also be converted into a complete bed for use, and the space utilization efficiency and the use flexibility of the equipment are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, in particular to a rehabilitation training device. Background Art

[0002] With the development of society and the increasing aging of the population, more and more people are facing various muscular diseases and functional disorders, such as arthritis, muscle strain, and stroke sequelae. To promote patients' recovery and improve their quality of life, rehabilitation training has become an important auxiliary treatment method. Existing rehabilitation training equipment on the market is designed to help users restore joint mobility, enhance muscle strength and endurance, and improve body coordination and flexibility.

[0003] However, existing rehabilitation training equipment has certain defects. First, most devices only have rehabilitation training functions, but not rest or sleep functions, so users need to prepare a resting place after use, which is not convenient. Secondly, existing equipment often only has an electric drive mode for stretching operations and lacks a manual drive mode, which makes it impossible for some users to choose a suitable stretching method according to their actual situation. In addition, existing equipment rarely considers the need for massage during the stretching process and fails to provide a massage function to help relieve muscle tension. Therefore, it is necessary to develop a new type of rehabilitation training equipment with multi-functional conversion, dual drive mode and massage function to meet the needs of different users. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a rehabilitation training device that solves the problems that the existing rehabilitation training equipment lacks an integrated rest function, a single drive mode, and lacks massage assistance, and cannot fully meet the users' diverse rehabilitation and comfort needs.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a rehabilitation training device, including a bed platform, a seat board is provided on the upper part of the bed platform at the head of the bed, and a cavity is provided inside the bed platform at one side of the seat board, the top of the cavity is open, and a leg stretcher is provided in the cavity, movable bed boards are provided on both sides of the bed platform, and limiting grooves are provided on both sides of the bed platform at the lower part, and a retraction and extension drive is installed on the bottom side of the interior of the cavity, which drives the movement of the leg stretcher and the movable bed board through the retraction and extension drive to realize free switching between rehabilitation training mode and rest mode.

[0006] The movable bed board includes guide shafts arranged at two corners above one side of the bed platform, a guide plate is provided in a transverse sliding sleeve between the two guide shafts, and a half bed board is provided on the upper side of the guide plate.

[0007] The retraction and extension drive includes a turntable rotatably arranged on the bottom side of the cavity, and the turntable is driven by a rotating cylinder installed on the bottom of the bed. Eccentric rods are hinged at the upper part of both sides of the turntable near the edge, and the end of the eccentric rod away from the turntable passes through the limiting groove, and a fixed shaft is rotatably arranged on the upper part of the end of the eccentric rod away from the turntable. The upper end of the fixed shaft is fixedly connected to the bottom of the guide plate, and a driven pulley is connected to the upper center of the turntable. The retraction and extension drive also includes threaded sleeves respectively connected to the lower part of both sides of the leg stretcher, a threaded rod is screwed into the threaded sleeve through a thread, the lower end of the threaded rod is rotatably arranged on the inner bottom side of the cavity, and a driving wheel is provided on the outside of the lower ends of the two threaded rods, and the two driving wheels are connected to the driven pulleys by belt transmission.

[0008] Preferably, the two half bed boards are combined to form a complete bed board, and the cavity on the bed platform is just enclosed.

[0009] Preferably, the two half bed boards move away from each other to open the cavity. At this time, the threaded rod rotates clockwise, which just drives the threaded sleeve to move downward and vice versa. The diameter of the driven wheel is larger than the diameter of the driving wheel.

[0010] Preferably, the leg stretcher includes a base plate horizontally arranged between the upper ends of the two threaded sleeves, the base plate is provided with a foot fixer for fixing the foot and a leg support adapter for supporting the leg during stretching, and a cavity is provided inside the base plate, the cavity extends to both sides of the base plate, and a servo motor is installed on the side of the base plate away from the head of the bed.

[0011] Preferably, the foot fixer includes a movable sleeve that is laterally slidably sleeved on the outside of the base plate, two arc-shaped positioning plates are provided on the upper part of the movable sleeve, and a connecting strip is provided on the inner side of the movable sleeve, the connecting strip slides laterally through the cavity, the output shaft of the servo motor is located in the cavity and is connected to a screw through a connecting part, the screw is screwed into one side of the connecting strip by a thread, and the other end of the screw is rotatably connected to a movable shaft, the end of the movable shaft away from the screw slides laterally through the inner side of the cavity and extends to the outside of the base plate, a through groove for the movable shaft to pass through is provided on one side of the seat plate, when switching to the training function, one end of the movable shaft corresponds to the position of the through groove, and a flange is provided on the outside of the end of the movable shaft close to the screw, and a spring is also provided on the outside of the movable shaft, and the two ends of the spring are respectively connected to one side of the flange and the inner side of the cavity.

[0012] Preferably, the connecting portion includes a gear sleeve connected to the end of the screw away from the movable shaft and a gear column connected to the output shaft of the servo motor. When the spring is in the reset state, the gear sleeve is slidably mounted on the gear column.

[0013] Preferably, the opposite sides of the two arc-shaped positioning plates are hinged at the center of the upper part of the mobile sleeve. When the user places his feet on the mobile sleeve, the two arc-shaped positioning plates respectively buckle the two feet, and the other side of the arc-shaped positioning plates is fixed to the mobile sleeve by bolts.

[0014] Preferably, the leg support adapter includes a calf support plate and a thigh support plate, the calf support plate and the thigh support plate are hinged together, and the other sides of the calf support plate and the thigh support plate are respectively hinged to one side of the movable sleeve and the upper part of the base plate, the upper parts of the calf support plate and the thigh support plate are symmetrically provided with two strip grooves, and a movable plate is slidably inserted into the two strip grooves, and a massage roller is rotatably arranged between the upper ends of the two movable plates, and the inside of the calf support plate and the thigh support plate are obliquely provided with a track groove, and a counterweight block is slidably installed in the track groove, and the lower end of the movable plate is connected to the upper part of the counterweight block.

[0015] Preferably, when the leg support adapter is in a horizontal state as a whole, the track grooves in the calf support plate and the thigh support plate are inclined 10 degrees in the direction opposite to each other.

[0016] The present invention provides a rehabilitation training device, which has the following advantages compared with the prior art: This rehabilitation training equipment achieves the opening and closing of the half bed board and the extension and retraction of the leg stretcher through the cooperation of the rotating cylinder and the turntable, so that the equipment can be used as a rehabilitation training tool and can also be converted into a complete bed. This design cleverly integrates the two functions, greatly improving the space utilization efficiency and the flexibility of the equipment.

[0017] This rehabilitation training equipment adopts a dual drive mode. Users can choose electric drive or manual drive according to their needs and preferences. The electric drive mode uses a servo motor to achieve automatic stretching, which is suitable for users who need assistance or cannot complete stretching movements independently; while the manual drive mode allows users to stretch through their own strength, which helps to enhance muscle strength and flexibility. This design fully takes into account the different needs of users and increases the applicability of the equipment.

[0018] This rehabilitation training equipment has a built-in massage function. Through the track groove and counterweight design in the calf support plate and thigh support plate, the massage roller can perform rolling massage on the thigh and calf. This can effectively relieve muscle tension during the stretching process and improve the rehabilitation effect. It not only increases the added value of the equipment, but also brings a more comfortable and comprehensive rehabilitation experience to users. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the present invention in the training state; Figure 2 This is a schematic diagram of the structure of the present invention in an untrained state; Figure 3 Schematic diagram of the connection structure between the leg stretcher and the extension and retraction driver of the present invention; Figure 4 This is a schematic diagram of the structure of the retractable and extendable driver of the present invention; Figure 5 is a schematic structural diagram of a foot fixer of the present invention; Figure 6 Schematic diagram of the structure of the leg support adapter of the present invention; Figure 7 Schematic diagram of the internal structure of the leg support adapter of the present invention.

[0020] In the figure: 1, bed platform; 2, seat plate; 21, through groove; 3, cavity; 4, leg stretcher; 41, base plate; 42, foot fixer; 421, movable sleeve; 422, arc-shaped positioning plate; 423, connecting strip; 424, screw; 425, gear sleeve; 426, gear column; 427, movable shaft; 428, flange; 429, spring; 43, leg support adapter; 431, calf support plate; 432, thigh support plate; 43 3. Strip groove; 434. Moving plate; 435. Massage roller; 436. Track groove; 437. Counterweight; 44. Cavity; 45. Servo motor; 5. Movable bed board; 51. Guide shaft; 52. Guide plate; 53. Half bed board; 6. Limiting groove; 7. Retraction and extension drive; 71. Turntable; 72. Eccentric rod; 73. Fixed shaft; 74. Driven pulley; 75. Threaded sleeve; 76. Threaded rod; 77. Driving pulley; 78. Belt. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-Figure 7 , the present invention provides three technical solutions: Example

[0023] See also Figure 1-Figure 2In an embodiment of the present invention, a rehabilitation training device includes a bed platform 1, a seat board 2 is provided on the upper part of the bed platform 1 at the head of the bed, and a cavity 3 is provided inside the bed platform 1 at one side of the seat board 2, the top of the cavity 3 is open, and a leg stretcher 4 is provided in the cavity 3, movable bed boards 5 are provided on both sides of the bed platform 1, and limiting grooves 6 are provided on both sides of the bed platform 1 at the lower part, and a retraction and extension driver 7 is installed on the bottom side of the inner part of the cavity 3, which drives the movement of the leg stretcher 4 and the movable bed board 5 through the retraction and extension driver 7 to realize free switching between rehabilitation training mode and rest mode.

[0024] See also Figure 1 In the embodiment of the present invention, the movable bed board 5 includes a guide shaft 51 arranged at two corners above one side of the bed platform 1, a guide plate 52 is provided in a transverse sliding sleeve between the two guide shafts 51, and a half bed board 53 is provided on the upper side of the guide plate 52.

[0025] See also Figures 1-4 The cam 73 is actuated by a spring 76 which is fixed to the bottom of the support frame 52 and is secured to the base 52 with respect to the support rail 52. The cam 73 is actuated by a spring 76 which is fixed to the bottom of the support frame 52 and is secured to the base 52 with respect to the support rail 52.

[0026] In this scheme, the turntable 71 is driven to rotate clockwise by the rotating cylinder, and the turntable 71 drives the eccentric rod 72 to do eccentric movement. The eccentric rod 72 will cause the fixed shaft 73 to drive the guide plate 52 to slide on the guide shaft 51, thereby driving the half bed board 53 to move. When the two eccentric rods 72 on the turntable 71 move away from each other, the two half bed boards 53 will move away from each other, opening the cavity 3 on the bed platform 1. Furthermore, while the turntable 71 rotates, it will also drive the driven pulley 74 to rotate. The driven pulley 74 causes the belt 78 to respectively drive the two driving wheels 77 driven therewith to rotate. The driving wheel 77 will drive the threaded rod 76 to rotate clockwise, and the threaded rod 76 will drive the threaded sleeve The cylinder 75 moves longitudinally, and the threaded sleeve 75 moves upward, pushing the leg stretcher 4 upward, so that it leaks out of the cavity 3 on the bed platform 1 and corresponds to the position of the movable bed board 5, which is convenient for the user to perform rehabilitation training. When the training is completed, the turntable 71 is driven counterclockwise by rotating the cylinder, and the two half bed boards 53 are close to each other. At this time, the threaded rod 76 will also rotate counterclockwise, causing the threaded sleeve 75 to drive the leg stretcher 4 to move downward, so that it moves into the cavity 3 on the bed platform 1, and the two half bed boards 53 are merged to close the cavity 3, so that the two half bed boards 53 form a complete bed board, so that the user can use the training equipment as a bed.

[0027] See also Figure 1-Figure 2 In the embodiment of the present invention, the two half bed boards 53 are combined to form a complete bed board, and the cavity 3 on the bed platform 1 is just enclosed, making it convenient for the user to rest on the complete bed board.

[0028] See also Figure 1-Figure 2 In the embodiment of the present invention, the two half bed boards 53 move away from each other to open the cavity 3. At this time, the threaded rod 76 rotates clockwise, which just drives the threaded sleeve 75 to move down and vice versa. When switching to training mode, the two half bed boards 53 will unfold and raise the leg stretcher 4 to facilitate user training. When switching to rest mode, the leg stretcher 4 will move down into the cavity 3 to achieve a storage effect, and the two half bed boards 53 will merge together and close the cavity 3 to facilitate user rest. The diameter of the driven pulley 74 is larger than the diameter of the driving wheel 77.

[0029] The second embodiment differs from the first embodiment in that: See also Figure 3 In an embodiment of the present invention, the leg stretcher 4 includes a base plate 41 horizontally arranged between the upper ends of two threaded sleeves 75, and a foot fixer 42 for fixing the foot and a leg support adapter 43 for supporting the leg during stretching are provided on the base plate 41, and a cavity 44 is provided inside the base plate 41, and the cavity 44 extends to both sides of the base plate 41, and a servo motor 45 is installed on the side of the base plate 41 away from the head of the bed.

[0030] See also Figure 3 and Figure 5 In the embodiment of the present invention, the foot fixer 42 includes a movable sleeve 421 that is laterally slidably sleeved on the outside of the base plate 41. Two arc-shaped positioning plates 422 are provided on the upper portion of the movable sleeve 421, and a connecting bar 423 is provided on the inner side of the movable sleeve 421. The connecting bar 423 slides laterally through the cavity 44. The output shaft of the servo motor 45 is located in the cavity 44 and is connected to a screw rod 424 through a connecting portion. The screw rod 424 is screwed into one side of the connecting bar 423 by a thread, and the other end of the screw rod 424 is rotatably connected to the movable shaft 427. One end of the movable shaft 427 away from the screw rod 424 slides horizontally through the inner side of the cavity 44 and extends to the outer side of the base plate 41. A through groove 21 for the movable shaft 427 to pass through is provided on one side of the seat plate 2. When switching to the training function, one end of the movable shaft 427 corresponds to the position of the through groove 21, and a flange 428 is provided on the outside of the end of the movable shaft 427 close to the screw rod 424, and a spring 429 is also provided on the outside of the movable shaft 427. The two ends of the spring 429 are respectively connected to one side of the flange 428 and the inner side of the cavity 44.

[0031] See also Figure 3 and Figure 5 In this embodiment of the present invention, the connecting portion includes a gear sleeve 425 connected to the end of the screw 424 away from the movable shaft 427 and a gear column 426 connected to the output shaft of the servo motor 45. When the spring 429 is in the reset state, the gear sleeve 425 is slidably mounted on the gear column 426.

[0032] In this solution: when electric assisted stretching is required, the user sits on the seat plate 2, places both feet on the upper part of the movable sleeve 421, and fixes both feet on the movable sleeve 421 through two arc-shaped positioning plates 422, and the legs are in a natural state without force. At this time, the spring 429 is in the reset state, and the gear sleeve 425 will be clamped onto the gear column 426, and then the servo motor 45 is operated, and the servo motor 45 drives the gear column 426 to rotate, and the gear column 426 drives the matching gear sleeve 425 to rotate, and the gear sleeve 425 drives the screw 424 to rotate, and the screw 424 will drive the connecting bar 423 to move horizontally, and then drive the movable sleeve 421 to move on the base plate 41. Since the feet are fixed, the movable sleeve 421 can drive the user's legs to do stretching exercises.

[0033] When the user needs to stretch himself, the user uses his feet to drive the movable sleeve 421 to slide on the base plate 41, thereby driving the connecting bar 423 to move. Under the elasticity of the spring 429, the connecting bar 423 drives the screw 424 to move, and the screw 424 drives the movable shaft 427 to move. When the two legs are pulled, the movable sleeve 421 will move toward the head of the bed, and the screw 424 will also move toward the head of the bed, causing the movable shaft 427 to also move toward the head of the bed, and one end of the movable shaft 427 will be inserted into the through slot 21 on the seat plate 2. When the two legs are stretched, the spring 429 will reset, thereby driving the two legs to stretch flat. During stretching, the spring 429 acts as a resistance, thereby achieving a good stretching effect.

[0034] For further information, see Figure 3 and Figure 5 In an embodiment of the present invention, opposite sides of the two arc-shaped positioning plates 422 are hinged at the center of the upper part of the mobile cover 421. When the user places his feet on the mobile cover 421, the two arc-shaped positioning plates 422 respectively buckle the two feet, and the other side of the arc-shaped positioning plates 422 is fixed to the mobile cover 421 by bolts.

[0035] The third embodiment differs from the first embodiment in that: See also Figure 6 and Figure 7 In the embodiment of the present invention, the leg support adapter 43 includes a calf support plate 431 and a thigh support plate 432, the calf support plate 431 and the thigh support plate 432 are hinged together, and the other sides of the calf support plate 431 and the thigh support plate 432 are hinged to one side of the movable sleeve 421 and the upper part of the base plate 41 respectively, the upper parts of the calf support plate 431 and the thigh support plate 432 are symmetrically provided with two strip grooves 433, and a movable plate 434 is slidably inserted into the two strip grooves 433, and a massage roller 435 is rotatably arranged between the upper ends of the two movable plates 434, and the interior of the calf support plate 431 and the thigh support plate 432 are both obliquely provided with a track groove 436, and a counterweight block 437 is slidably installed in the track groove 436, and the lower end of the movable plate 434 is connected to the upper part of the counterweight block 437.

[0036] See also Figure 6 and Figure 7 In the embodiment of the present invention, when the leg support adapter 43 is in a horizontal state as a whole, the track grooves 436 in the calf support plate 431 and the thigh support plate 432 are both inclined 10 degrees in the opposite direction.

[0037] In this solution, when stretching, the calf support plate 431 and the thigh support plate 432 will also move, respectively supporting the user's calf and thigh. When the legs are in a horizontal state, the leg support adapter 43 is in a horizontal state as a whole. When pulling, the opposite ends of the calf support plate 431 and the thigh support plate 432 will move upward. At this time, the track grooves 436 in the calf support plate 431 and the thigh support plate 432 will be in an eight-shaped shape. In this way, under the gravity of the counterweight block 437, the calf support plate 431 and the thigh support plate 432 will move upward. The counterweights 437 in the leg support plate 432 will slide away from each other, thereby driving the massage rollers 435 to move. The massage rollers 435 will roll the thighs and calves. When stretching, the leg support adapter 43 will gradually return to a horizontal state. Since the track grooves 436 in the calf support plate 431 and the thigh support plate 432 are inclined, the counterweights 437 will return to their initial positions and roll the legs again. When stretching repeatedly, the massage rollers 435 will continuously roll the thighs and calves to achieve a massage effect.

[0038] Working principle: The rotary cylinder drives the turntable 71 to rotate clockwise, and the turntable 71 drives the eccentric rod 72 to do eccentric movement. The eccentric rod 72 will make the fixed shaft 73 drive the guide plate 52 to slide on the guide shaft 51, and then drive the half bed board 53 to move. When the two eccentric rods 72 on the turntable 71 move away from each other, the two half bed boards 53 will move away from each other, and the cavity 3 on the bed platform 1 will be opened. Furthermore, when the turntable 71 rotates, it will also drive the driven pulley 74 to rotate. The driven pulley 74 makes the belt 78 drive the two driving wheels 77 driven therewith to rotate. The driving wheel 77 will drive the threaded rod 76 to rotate clockwise, and the threaded rod 76 will drive the threaded sleeve The cylinder 75 moves longitudinally, and the threaded sleeve 75 moves upward, pushing the leg stretcher 4 upward, so that it leaks out of the cavity 3 on the bed platform 1 and corresponds to the position of the movable bed board 5, which is convenient for the user to perform rehabilitation training. When the training is completed, the turntable 71 is driven counterclockwise by the rotating cylinder, and the two half bed boards 53 are moved closer to each other. At this time, the threaded rod 76 also rotates counterclockwise, causing the threaded sleeve 75 to drive the leg stretcher 4 downward, so that it moves into the cavity 3 on the bed platform 1, and the two half bed boards 53 are merged to close the cavity 3, so that the two half bed boards 53 form a complete bed board, so that the user can use the training device as a bed; When electric-assisted stretching is required, the user sits on the seat plate 2, places both feet on the upper part of the movable sleeve 421, and fixes both feet on the movable sleeve 421 through the two arc-shaped positioning plates 422, and the legs are in a natural state without force. At this time, the spring 429 is in the reset state, and the gear sleeve 425 is clamped onto the gear column 426. Then the servo motor 45 is operated, and the servo motor 45 drives the gear column 426 to rotate. The gear column 426 drives the matching gear sleeve 425 to rotate, and the gear sleeve 425 drives the screw 424 to rotate. The screw 424 will drive the connecting bar 423 to move horizontally, and then drive the movable sleeve 421 to move on the base plate 41. Since the feet are fixed, the movable sleeve 421 can drive the user's legs to do stretching exercises; When the user needs to stretch by himself, the user applies force on his feet to drive the movable sleeve 421 to slide on the base plate 41, thereby driving the connecting bar 423 to move. Under the elasticity of the spring 429, the connecting bar 423 drives the screw rod 424 to move, and the screw rod 424 drives the movable shaft 427 to move. When the two legs are pulled, the movable sleeve 421 will move toward the head of the bed, and the screw rod 424 will also move toward the head of the bed, causing the movable shaft 427 to move toward the head of the bed, and one end of the movable shaft 427 will be inserted into the through slot 21 on the seat plate 2. When the two legs are stretched, the spring 429 will reset, thereby driving the two legs to stretch flat. During stretching, the spring 429 acts as a resistance, thereby achieving a good stretching effect. When doing stretching, the calf support plate 431 and the thigh support plate 432 will also move, respectively supporting the user's calf and thigh. When the legs are in a horizontal state, the leg support adapter 43 is in a horizontal state as a whole. When doing pulling exercise, the opposite ends of the calf support plate 431 and the thigh support plate 432 will move upward. At this time, the track grooves 436 in the calf support plate 431 and the thigh support plate 432 will be in an eight-shaped shape. In this way, under the gravity of the counterweight block 437, the calf support plate 431 and the thigh support plate 432 will be in an eight-shaped shape. The counterweights 437 in the plate 432 will slide away from each other, thereby driving the massage rollers 435 to move. The massage rollers 435 will roll the thighs and calves. When stretching, the leg support adapter 43 will gradually return to a horizontal state. Since the track grooves 436 in the calf support plate 431 and the thigh support plate 432 are tilted, the counterweights 437 will return to their initial positions and roll the legs again. When stretching repeatedly, the massage rollers 435 will continuously roll the thighs and calves to achieve a massage effect.

[0039] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A rehabilitation training device, comprising a bed platform (1), characterized in that: The upper part of the bed platform (1) is provided with a seat plate (2) at the head of the bed, and a cavity (3) is provided inside the bed platform (1) at one side of the seat plate (2), the upper part of the cavity (3) is open, and a leg stretcher (4) is provided in the cavity (3), both sides of the bed platform (1) are provided with movable bed plates (5), and both sides of the bed platform (1) are provided with limiting grooves (6) at the lower part, and a retracting and extending driver (7) is installed on the bottom side of the cavity (3), and the movement of the leg stretcher (4) and the movable bed plate (5) is driven by the retracting and extending driver (7), so as to realize free switching between the rehabilitation training mode and the rest mode; The movable bed board (5) comprises guide shafts (51) arranged at two corners above one side of the bed platform (1), a guide plate (52) is provided on a transverse sliding sleeve between the two guide shafts (51), and a half bed board (53) is provided on the upper side of the guide plate (52); The retracting and extending driver (7) includes a turntable (71) rotatably arranged on the bottom side of the cavity (3), the turntable (71) is driven by a rotary cylinder installed at the bottom of the bed (1), and eccentric rods (72) are hinged on the upper part of both sides of the turntable (71) near the edge, and the end of the eccentric rod (72) away from the turntable (71) passes through the limit slot (6), and the upper part of the end of the eccentric rod (72) away from the turntable (71) is rotatably provided with a fixed shaft (73), and the upper end of the fixed shaft (73) is fixedly connected to the bottom of the guide plate (52). , and a driven wheel (74) is connected to the center of the upper circle of the turntable (71), and the retraction and extension driver (7) also includes threaded sleeves (75) respectively connected to the lower parts of both sides of the leg stretcher (4), and a threaded rod (76) is screwed into the threaded sleeve (75) through a thread, and the lower end of the threaded rod (76) is rotatably arranged on the inner bottom side of the cavity (3), and the lower ends of the two threaded rods (76) are both provided with driving wheels (77), and the two driving wheels (77) are connected to the driven wheel (74) through a belt (78).

2. A rehabilitation training device according to claim 1, characterized in that: The two half bed boards (53) are combined to form a complete bed board, and the cavity (3) on the bed platform (1) is just enclosed.

3. The rehabilitation training device according to claim 1, characterized in that: The two half-bed plates (53) are moved away from each other to open the cavity (3). At this time, the threaded rod (76) rotates clockwise, which just drives the threaded sleeve (75) to move downward and vice versa. The diameter of the driven wheel (74) is larger than the diameter of the driving wheel (77).

4. The rehabilitation training device according to claim 1, characterized in that: The leg stretcher (4) comprises a base plate (41) horizontally arranged between the upper ends of two threaded sleeves (75), a foot fixer (42) for fixing the foot and a leg support adapter (43) for supporting the leg during stretching are arranged on the base plate (41), and a cavity (44) is arranged inside the base plate (41), and the cavity (44) extends to both sides of the base plate (41), and a servo motor (45) is installed on the side of the base plate (41) away from the head of the bed.

5. The rehabilitation training device according to claim 4, characterized in that: The foot fixer (42) includes a movable sleeve (421) that is laterally slidably sleeved on the outside of the base plate (41), two arc-shaped positioning plates (422) are provided on the upper part of the movable sleeve (421), and a connecting strip (423) is provided on the inner side of the movable sleeve (421), and the connecting strip (423) slides laterally through the cavity (44). The output shaft of the servo motor (45) is located in the cavity (44) and is connected to a screw rod (424) through a connecting portion. The screw rod (424) is screwed into one side of the connecting strip (423) through a thread, and the other end of the screw rod (424) is rotatably connected to a movable shaft (427), and the movable shaft ( One end of the movable shaft (427) away from the screw (424) slides transversely through the inner side of the cavity (44) and extends to the outer side of the base plate (41). One side of the seat plate (2) is provided with a through groove (21) for the movable shaft (427) to penetrate. When the training function is switched to, one end of the movable shaft (427) corresponds to the position of the through groove (21), and the outer side of the end of the movable shaft (427) close to the screw (424) is provided with a flange (428), and the outer side of the movable shaft (427) is also provided with a spring (429), and the two ends of the spring (429) are respectively connected to one side of the flange (428) and the inner side of the cavity (44).

6. The rehabilitation training device according to claim 5, characterized in that: The connecting portion includes a gear sleeve (425) connected to one end of the screw (424) away from the movable shaft (427) and a gear column (426) connected to the output shaft of the servo motor (45). When the spring (429) is in a reset state, the gear sleeve (425) is slidably mounted on the gear column (426).

7. The rehabilitation training device according to claim 5, characterized in that: The two arc-shaped positioning plates (422) are hinged on opposite sides at the center of the upper portion of the mobile sleeve (421). When the user places two feet on the mobile sleeve (421), the two arc-shaped positioning plates (422) respectively buckle the two feet, and the other side of the arc-shaped positioning plates (422) is fixed to the mobile sleeve (421) by bolts.

8. The rehabilitation training device according to claim 5, characterized in that: The leg support adapter (43) includes a calf support plate (431) and a thigh support plate (432), the calf support plate (431) and the thigh support plate (432) are hinged together, and the other sides of the calf support plate (431) and the thigh support plate (432) are hinged to one side of the movable sleeve (421) and the upper part of the base plate (41), respectively. The upper parts of the calf support plate (431) and the thigh support plate (432) are symmetrically provided with two strips. The two strip-shaped grooves (433) are each slidably inserted with a movable plate (434), and a massage roller (435) is rotatably provided between the upper ends of the two movable plates (434). The insides of the calf support plate (431) and the thigh support plate (432) are both obliquely provided with a track groove (436), and a counterweight (437) is slidably installed in the track groove (436). The lower end of the movable plate (434) is connected to the upper part of the counterweight (437).

9. The rehabilitation training device according to claim 8, characterized in that: When the leg support adapter (43) is in a horizontal state as a whole, the track grooves (436) in the calf support plate (431) and the thigh support plate (432) are both inclined 10 degrees in the direction opposite to each other.

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