CN112294561A

CN112294561A - Orthopedic leg rehabilitation bed

Info

Publication number: CN112294561A
Application number: CN202011194648.9A
Authority: CN
Inventors: 杨志巧
Original assignee: Yang Zhiqiao
Current assignee: Yang Zhiqiao
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-02-02
Anticipated expiration: 2040-10-30
Also published as: CN112294561B

Abstract

The invention discloses an orthopedic leg rehabilitation bed, which comprises a bed frame and a bed board; the bed board is rotatably connected with two thigh supporting plates; the rear end of the thigh supporting plate is rotatably connected with a shank supporting plate; the lower end of the bed plate is provided with a leg driving part for driving the thigh supporting plate and the shank supporting plate to rotate in a reciprocating manner; the leg driving part comprises a driving arm and a leg driving motor; the lower end of the shank support plate is provided with a switching component; the switching component comprises a stop block and a clamping strip; the drive motor works to enable the thigh supporting plate to rotate in a reciprocating mode; the drive motor works to enable the thigh supporting plate to rotate in a reciprocating mode and simultaneously enable the shank supporting plate to rotate in a reciprocating mode relative to the thigh supporting plate. The hip joint rehabilitation device has a hip joint rehabilitation function, and the motor drives the hip joint to reciprocate; the knee joint rehabilitation device has the knee joint rehabilitation function, and drives the motor to make the knee joint perform reciprocating bending and straightening; the ankle joint rehabilitation device has the ankle joint rehabilitation function, and the motor drives the leg to be bent and straightened in a reciprocating manner; the invention mostly adopts an automatic process, and has simple operation and convenient use.

Description

Orthopedic leg rehabilitation bed

Technical Field

The invention belongs to the technical field of medical rehabilitation, and particularly relates to an orthopedic leg rehabilitation bed.

Background

Chinese patent document No. CN206443845U discloses a self-service passive knee joint rehabilitation training bed, which relates to a medical rehabilitation device, and comprises a bed body, a thigh fixing rod, a shank fixing rod, a connecting rod and a toggle bent rod, wherein the bed body comprises a bed frame, an upper bed plate and a lower bed plate; the lower bed plate is longitudinally provided with two parallel groove rails, each groove rail is internally provided with symmetrical thigh fixing rods and a shank fixing rod hinged with one end of each thigh fixing rod, the other end of each thigh fixing rod is hinged with the inner side groove wall of the corresponding groove rail, the other end of each shank fixing rod is provided with a roller, and the rollers are abutted against the inner bottom surfaces of the groove rails; one end of the connecting rod is hinged with the shank fixing rod through a connecting rod shaft, and the other end of the connecting rod is hinged with the lower end of the toggle bent rod; the pair of toggle bent rods are positioned at the outer sides of the thigh fixing rods and are vertically inserted into the bent rod grooves of the bed body, and the middle parts of the toggle bent rods are in running fit with the bed body through bent rod shafts. The utility model discloses a manual knee structure of stirring lets the patient take exercise by oneself, can master dynamics and frequency.

Above-mentioned patent function singleness can only adopt self-service mode to make hip joint and knee joint simultaneous movement, and in the use scene of reality, because the recovered condition of recovered personnel difference, need divide the condition to carry out progressively deep rehabilitation training to recovered personnel, carry out single joint earlier and carry out the rehabilitation training of a plurality of joints again to some recovered personnel can not be autonomic control stir the knee-rod and train, and above-mentioned patent can not satisfy actual user demand.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: aiming at the defects in the prior art, the leg rehabilitation bed which is full-automatic and can be used for carrying out individual hip joint training and hip joint and knee joint training is provided.

In order to realize the purpose of the invention, the following technical scheme is adopted for realizing the purpose: an orthopedic leg rehabilitation bed comprises a bed frame and a bed board arranged at the upper end of the bed frame; the rear part of the bed plate is rotationally connected with two thigh supporting plates which are symmetrically arranged and are used for driving thighs to reciprocate, and rotating shafts are arranged along the left and right directions; the rear end of each thigh supporting plate is respectively and rotatably connected with a shank supporting plate which is provided with a rotating shaft along the left-right direction and is used for driving shanks to reciprocate.

Two leg driving parts for driving the corresponding thigh supporting plates and the corresponding shank supporting plates to rotate in a reciprocating manner are arranged at the lower end of the bed plate; each leg driving part comprises a driving arm which is arranged along the left-right direction of a rotating shaft rotationally connected to the bed plate and is positioned on one side of the shank supporting plate, and a leg driving motor which is fixedly connected to the lower end of the bed plate and is used for driving the driving arm to rotate; one end of each driving arm, which is far away from the leg driving motor, is respectively connected with the corresponding shank supporting plate in a sliding manner along the length direction of the shank supporting plate.

The lower end of each shank supporting plate is provided with a switching component; each switching component comprises a stop block which is connected to the lower end of the corresponding shank supporting plate in a sliding mode along the length direction of the shank supporting plate and can be fixedly connected with the corresponding thigh supporting plate in an inserting mode, and a clamping strip which is connected to the lower end of the shank supporting plate in a sliding mode along the length direction of the shank supporting plate and can prevent the driving arm from sliding.

When the stop block is fixedly inserted with the thigh supporting plate, the clamping strip does not prevent the driving arm from sliding, and the leg driving motor works to enable the thigh supporting plate to rotate in a reciprocating mode.

When the stop block is not fixedly inserted with the thigh supporting plate, the clamping strip prevents the driving arm from sliding, and the leg driving motor works to enable the thigh supporting plate to rotate in a reciprocating mode and the shank supporting plate to rotate in a reciprocating mode relative to the thigh supporting plate.

As a preferable scheme: each switching component also comprises a transmission block which is connected to the lower end of the shank supporting plate in a sliding mode along the left-right direction and can prevent the corresponding clamping strip from moving, a transmission rod which is connected to one end of the lower end of the shank supporting plate and is rotatably connected with the transmission block, and a pressing block which is connected to the shank supporting plate in a sliding mode along the height direction of the shank supporting plate and is used for driving the transmission block to slide left and right.

When the pressing block is located at the lower limit position, the stopping block is fixedly connected with the thigh supporting plate in an inserting mode, the transmission block does not prevent the clamping strip from moving, and therefore the clamping strip does not prevent the driving arm from sliding.

When the pressing block is located at the upper limit position, the stopping block is not fixedly connected with the thigh supporting plate in an inserting mode, the transmission block prevents the clamping strip from moving, and therefore the clamping strip prevents the driving arm from sliding.

As a preferable scheme: a foot driving part for driving the feet to reciprocate is respectively arranged on each lower leg supporting plate; each foot driving part comprises a pedal which is arranged on the corresponding shank supporting plate and is used for driving the foot to reciprocate and a foot driving motor which is fixedly connected to the lower end of the corresponding shank supporting plate and is used for driving the pedal to slide in a reciprocating mode.

As a preferable scheme: each foot driving part also comprises a screw rod which is rotationally connected to the lower part of the corresponding shank supporting plate and is in transmission connection with the output shaft of the corresponding foot driving motor, and a screw rod sliding seat which is in sliding connection with the shank supporting plate along the length direction of the shank supporting plate and is in transmission connection with the corresponding screw rod; and each pedal is respectively connected with the corresponding screw rod sliding seat in a rotating manner along the left and right directions.

When each pedal is approximately parallel to the corresponding shank support plate, each pedal abuts against the corresponding press block, and the press block is located at the lower limit position.

When each pedal is approximately vertical to the corresponding shank supporting plate, each pedal is not in contact with the corresponding pressing block, the pressing block is located at the upper limit position, and the pedal can drive the foot to reciprocate.

As a preferable scheme: a driving column is formed on one side, facing the transmission block, of each pressing block; and a driving inclined plane which is abutted against the corresponding driving column is formed on one side of each transmission block, which faces the pressing block.

As a preferable scheme: two symmetrically arranged clamping grooves are formed at one end of each pedal, which is far away from the screw rod sliding seat; a pedal accommodating groove for accommodating the pedal is formed at the upper end of each shank supporting plate; each elastic clamping head capable of being clamped with the corresponding clamping groove is formed in the pedal accommodating groove respectively.

As a preferable scheme: and a torsion spring used for enabling the thigh supporting plate and the shank supporting plate not to be parallel relatively is arranged between each thigh supporting plate and the corresponding shank supporting plate.

As a preferable scheme: the bed board comprises a fixed bed board which is fixedly connected to the bed frame and is close to the rear end and an overturning bed board which is rotatably connected to a rotating shaft at the front end of the fixed bed board and is arranged along the left-right direction; an electric push rod used for pushing the turnover bed board to turn upwards is arranged between the turnover bed board and the bed frame.

As a preferable scheme: the bed frame is provided with a controller.

Compared with the prior art, the invention has the beneficial effects that: in the initial state, the stop plug is positioned in the stop hole, the torsion spring is in a torsional state, and the first spring is in a compressed state. Fixed bed board is parallel relatively with the upset bed board, and thigh backup pad, shank backup pad are located the backup pad and hold mouthful and thigh backup pad support bar offset, and the footboard is located the footboard holding tank. When the product is used, the sealing pad is taken down.

When the product is used for carrying out rehabilitation training on hip joints, a rehabilitation person can lie on the mattress, so that the two thighs are respectively positioned right above the thigh supporting plate. Selecting a corresponding hip joint control key on the controller, then adjusting the rehabilitation time, the movement times and the movement amplitude on the controller, and then pressing a corresponding start key. The controller controls the leg driving motor to rotate in the positive direction, and the output torque of the leg driving motor is amplified by the reduction gearbox, so that the driving arm rotates upwards. The sliding column moves upwards to drive the driving groove to move, so that the thigh supporting plate rotates upwards, and the thighs of the rehabilitation personnel are driven to move upwards. In the process, the sliding column slides along the driving groove, the sliding column presses the pressure bearing groove downwards, so that the clamping strip moves downwards along the guide block, and the second spring is compressed. After certain number of turns of forward rotation of shank driving motor, thigh backup pad upwards rotates to the motion range that sets up this moment, and shank driving motor antiport then for the actuating arm rotates downwards to initial position, and the card strip is reverse slip to initial position under the elastic force effect of second spring, and drives recovered personnel's thigh downstream in step. The thigh is lifted up and down in a reciprocating mode, so that the hip joint is subjected to rehabilitation training, after the rehabilitation training is completed, the leg driving motor stops rotating, and the thigh supporting plate is located at the initial position. Through the controller, can set up two thigh backup pads and move together or the independent motion, also can set up the range and the lifting time of the lifting of thigh backup pad to set up the rehabilitation training course of treatment according to the different recovered circumstances of recovered personnel.

When the product is used for rehabilitation training of hip joints and knee joints, the pedal is stirred upwards to rotate to the limit position, the upper end of the pressing block is not pressed downwards any more, the transmission block moves outwards under the elastic action of the first spring to the limit position, and the driving inclined plane moves outwards to drive the driving column to move upwards, so that the pressing block moves upwards to the limit position. Meanwhile, the transmission block moves to enable the transmission rod to rotate around the middle rotating groove, the stop block is pulled to move to enable the stop plug to leave the stop hole, the thigh supporting plate and the shank supporting plate are not parallel to each other under the elastic action of the torsion spring, and the thigh supporting plate rotates upwards for a certain angle. The rehabilitation personnel can lie on the mattress, the two thighs are respectively positioned right above the thigh supporting plate, and the two feet step on the corresponding pedals. The corresponding 'hip joint and knee joint' control keys on the controller are selected, then the rehabilitation time, the movement times and the movement amplitude are adjusted on the controller, and then the corresponding start keys are pressed.

The controller controls the leg driving motor to rotate in the forward direction, so that the driving arm rotates upwards, and the sliding column moves upwards to drive the driving groove to move, so that the thigh supporting plate rotates upwards. Because the outside lateral movement of transmission piece will be kept away from the one end counterbalance of bearing groove with the card strip for the card strip can not slide, and then makes the slip post can not slide along the drive groove. The upward rotation process of the driving arm enables the thigh supporting plate to rotate upwards and the included angle between the thigh supporting plate and the shank supporting plate to be reduced, and then the hip joint and the knee joint are enabled to move. After certain number of turns of forward rotation of shank driving motor, thigh backup pad and shank backup pad upwards rotate to the motion range that sets up this moment, and shank driving motor antiport then for the actuating arm rotates downwards to initial position, makes the shank backup pad pass the backup pad downwards and hold the mouth and rotate to the motion range that sets up, and the thigh backup pad moves to initial position under the blockking of thigh backup pad support bar, and then makes hip joint and knee joint obtain the motion. So reciprocal, the rehabilitation training of setting is accomplished the back, and shank driving motor stall, thigh backup pad and shank backup pad motion to initial position this moment. Through the controller, can set up two thigh backup pads and shank backup pad and move together or the independent motion, also can set up the range and the lifting time of the lifting of thigh backup pad and thigh backup pad to set up the rehabilitation training course of treatment according to the different recovered circumstances of recovered personnel.

After the use, the thigh supporting plate is pressed down to enable the thigh supporting plate and the shank supporting plate to be relatively parallel, and then the pedal is shifted to enable the pedal to return to the initial position. The pedal presses the pressing block downwards to enable the pressing block to move downwards to an initial position, and the driving column drives the driving inclined plane to move to an extreme position and the first spring compresses. The transmission block moves inwards to enable the transmission rod to rotate around the middle rotating groove, the stop block is pushed to move, the stop plug enters the stop hole again, the thigh supporting plate is loosened, and the thigh supporting plate and the shank supporting plate are parallel relatively.

When the product is used for rehabilitation training of hip joints, knee joints and ankle joints, the pedal is stirred upwards to rotate to the limit position, the transmission block moves outwards to the limit position under the elastic action of the first spring, and the inclined plane is driven to move outwards to enable the pressing block to move upwards to the limit position. Meanwhile, the transmission block moves to enable the transmission rod to pull the stop block to move so that the stop plug leaves the stop hole, the thigh supporting plate and the shank supporting plate are not parallel to each other under the action of the elastic force of the torsion spring, and the thigh supporting plate rotates upwards for a certain angle. The rehabilitation personnel can lie on the mattress A, the two thighs are respectively positioned right above the thigh supporting plate, and the two feet step on the corresponding pedals. The corresponding 'hip joint, knee joint and ankle joint' control keys on the controller are selected, the controller controls the leg driving motor to rotate reversely to the limit position, the driving arm rotates downwards and simultaneously drives the shank supporting plate to rotate downwards to the limit position, the shank supporting plate and the ground form an included angle of 70-80 degrees, then the controller controls the electric push rod body to extend outwards, the turnover bed plate is turned upwards, and accordingly the rehabilitation personnel lying on the product can sit up step by step. Then the rehabilitation time, the movement times and the movement amplitude are adjusted on the controller, and then the corresponding start key is pressed.

The controller controls the foot part to drive the motor to rotate positively, so that the output gear rotates to drive the screw rod gear to rotate, and the screw rod rotates. The screw rod nut moves towards the direction of the foot driving motor along the screw rod under the guiding effect of the screw rod nut, so that the screw rod sliding seat drives the pedal to move towards the direction of the foot driving motor, the foot is pushed to move, the knee of the leg is bent, meanwhile, the foot rotates towards the direction of the leg due to the fact that the leg supporting plate has an included angle relative to the ground, and therefore the hip joint, the knee joint and the ankle joint are enabled to move. After foot driving motor forward rotation certain number of turns, the footboard moves to the motion amplitude that sets up, and foot driving motor antiport for the footboard drives foot's motion and makes the shank straighten, and is so reciprocal, and after the rehabilitation training that sets up was accomplished, foot driving motor stall, footboard motion to primary position. Through the controller, the two pedals can be set to move together or independently, the movement amplitude and time of the pedals can also be set, and the rehabilitation training course can be set according to different rehabilitation conditions of rehabilitation personnel.

After the use, the hip joint, knee joint and ankle joint control keys are pressed down again, the controller controls the leg driving motor to rotate in the forward direction, so that the driving arm drives the shank supporting plate to rotate upwards to the initial position, and meanwhile, the rod body of the electric push rod is controlled to retract inwards, and the bed plate is turned over to return to the initial position. Pressing down on the thigh support plate makes the thigh support plate and the shank support plate relatively parallel, and then shifting the pedal to return to the initial position. The pedal presses the pressing block downwards to enable the pressing block to move downwards to an initial position, and the driving column drives the driving inclined plane to move to an extreme position and the first spring compresses. The transmission block moves inwards to enable the transmission rod to rotate around the middle rotating groove, the stop block is pushed to move, the stop plug enters the stop hole again, the thigh supporting plate is loosened, and the thigh supporting plate and the shank supporting plate are parallel relatively.

According to the invention, the stop block is arranged, when the stop block is positioned in the stop hole, the clamping strip can slide along the guide block, the thigh supporting plate and the shank supporting plate are relatively fixed, the leg driving motor works to enable the thigh supporting plate to rotate, the driving column slides along the driving groove, and the hip joint is further enabled to move; when the stop block is positioned outside the stop hole, the clamping strip and the shank supporting plate are relatively fixed, the leg driving motor works, the thigh supporting plate and the shank supporting plate relatively rotate while the thigh supporting plate rotates, and then the hip joint and the knee joint are moved.

According to the invention, by arranging the pressing block, when the pressing block moves downwards to the limit position, the driving column drives the driving inclined plane to move inwards to the limit position, so that the transmission rod rotates around the middle rotating groove, the stop block is further pushed to move, the stop plug enters the stop hole, and the leg driving motor works to enable the thigh supporting plate to rotate; when the briquetting moved to extreme position, the transmission piece moved to extreme position to the outside under the elastic force effect of first spring for the locking plug leaves in the locking hole, and simultaneously, the transmission piece offsets with the one end that the slip post was kept away from to the card strip, prevents the slip post and slides along the drive slot, and thigh backup pad and shank backup pad rotate relatively when shank driving motor work made thigh backup pad pivoted.

According to the invention, by arranging the pedal, when the pedal is positioned in the pedal accommodating groove, the pedal presses the pressing block downwards, so that the stop plug is kept in the stop hole, and the leg driving motor works to enable the thigh supporting plate to rotate so as to drive the hip joint to move; when the pedal is positioned outside the pedal accommodating groove, the pressing block is positioned at the upper end limit position under the elastic force of the first spring, the stop plug is positioned outside the stop hole, and the leg driving motor works to enable the thigh supporting plate and the shank supporting plate to rotate relatively while the thigh supporting plate rotates; in addition, the foot driving motor rotates to enable the pedal to slide along the screw rod, so that the foot is driven to move, and the hip joint, the knee joint and the ankle joint are enabled to move.

The invention has the hip joint rehabilitation training function, the rehabilitation personnel lie on the bed board, and the leg driving motor drives the hip joint to reciprocate; the hip joint rehabilitation training device has the knee joint rehabilitation training function, and on the basis of the hip joint rehabilitation training function, the leg driving motor can enable the knee joint to be bent and straightened in a reciprocating mode, so that the knee joint can be moved; the invention has the ankle joint rehabilitation training function, and on the basis of the knee joint rehabilitation training function, the foot driving motor drives the foot to do reciprocating motion, so that the leg is bent and straightened in a reciprocating way, and the ankle joint is moved; the invention mostly adopts an automatic process, and has simple operation and convenient use.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic cross-sectional structure of the present invention.

Fig. 3 is a schematic exploded view of the present invention.

Fig. 4 is a schematic view of the structure of the bed frame of the present invention.

Fig. 5 is a schematic exploded view of the bed plate of the present invention.

Fig. 6 is a schematic view of the structure of the thigh support plate and the calf support plate of the invention.

FIG. 7 is a schematic view of the construction of the calf support plate of the invention.

Fig. 8 is an exploded view of the foot driving unit according to the present invention.

Fig. 9 is a schematic view of the structure of the leg driving part of the present invention.

Fig. 10 is an exploded view of the switching module of the present invention.

Fig. 11 is a structural schematic diagram of the hip joint rehabilitation function of the present invention.

Fig. 12 is a schematic structural view showing the ankle rehabilitation function of the hip joint, the knee joint and the ankle joint of the present invention.

Fig. 13 is a schematic structural view of the hip joint and knee joint rehabilitation function of the present invention.

FIG. 14 is a schematic structural diagram of the hip joint, knee joint, ankle joint rehabilitation function performed in a sitting posture according to the present invention.

1. A bed frame; 11. a controller; 2. a bed board; 21. fixing the bed plate; 211. a support plate receiving opening; 212. a thigh support plate support bar; 22. turning over the bed plate; 23. an electric push rod; 31. a thigh support plate; 311. a stop hole; 32. a shank support plate; 321. a pedal receiving groove; 3211. an elastic chuck; 322. a drive slot; 323. a screw base; 324. a sliding track; 325. rotating the column; 326. a spring mounting plate; 327. a guide block; 33. a torsion spring; 4. a leg driving section; 41. a drive arm; 411. a sliding post; 42. a reduction gearbox; 43. a leg driving motor; 5. a foot driving part; 51. a pedal; 511. a pedal rotating seat a; 512. a card slot; 513. a briquetting accommodating groove; 52. a screw rod sliding seat; 521. a feed screw nut; 522. a pedal rotating seat b; 53. a screw rod; 531. a screw gear; 54. a foot drive motor; 541. an output gear; 6. a switching component; 61. clamping the strip; 611. a pressure-bearing groove; 612. a guide groove; 62. briquetting; 621. a drive column; 63. a transmission block; 631. a first connector; 632. a drive ramp; 64. a first spring; 65. a transmission rod; 651. connecting holes; 652. a middle rotating groove; 653. connecting grooves; 66. a stopper block; 661. a second connector; 662. a locking plug; 67. a second spring; A. a mattress; B. a sealing pad.

Detailed Description

Referring to fig. 1 to 14, the rehabilitation bed for orthopedic legs according to the present embodiment includes a bed frame 1 and a bed plate 2 installed on an upper end of the bed frame 1; the rear part of the bed plate 2 is rotatably connected with two thigh supporting plates 31 which are symmetrically arranged and provided with rotating shafts along the left and right directions and are used for driving thighs to reciprocate; the rear end of each thigh supporting plate 31 is respectively and rotatably connected with a lower leg supporting plate 32 which is provided with a rotating shaft along the left-right direction and is used for driving the lower leg to reciprocate.

The lower end of the bed plate 2 is provided with two leg driving parts 4 for driving the corresponding thigh supporting plate 31 and the corresponding shank supporting plate 32 to rotate in a reciprocating manner; each leg driving part 4 comprises a driving arm 41 which is arranged along the left-right direction and is positioned at one side of the shank supporting plate 32, and a leg driving motor 43 which is fixedly connected at the lower end of the bed plate 2 and is used for driving the driving arm 41 to rotate, wherein the rotating shaft which is rotatably connected to the bed plate 2 is arranged; one end of each driving arm 41, which is far away from the leg driving motor 43, is slidably connected with the corresponding lower leg support plate 32 along the length direction of the lower leg support plate 32.

One end of each driving arm 41, which faces the lower leg support plate 32 and is far away from the leg driving motor 43, is respectively formed with a sliding column 411; one end of each lower leg support plate 32 facing the corresponding driving arm 41 and away from the thigh support plate 31 is formed with a driving groove 322 slidably connected to the corresponding sliding column 411 along the length direction of the lower leg support plate 32.

Each leg driving part 4 also comprises a reduction box 42 which is fixedly connected with the lower end of the bed plate 2 and is in transmission connection with the corresponding leg driving motor 43; one end of the driving arm 41 close to the leg driving motor 43 is fixedly connected with an output shaft of the reduction box 42; after the rotating torque of the output shaft of the leg driving motor 43 is amplified by the reduction gearbox 42, the driving force of the driving arm 41 is larger, and meanwhile, the energy consumption is lower.

The lower end of each shank support plate 32 is respectively provided with a switching component 6; each switching assembly 6 comprises a stop block 66 which is connected to the lower end of the corresponding lower leg support plate 32 in a sliding manner along the length direction of the lower leg support plate 32 and can be fixedly inserted into the corresponding upper leg support plate 31, and a clamping strip 61 which is connected to the lower end of the lower leg support plate 32 in a sliding manner along the length direction of the lower leg support plate 32 and can prevent the driving arm 41 from sliding.

A sliding rail 324 which is slidably connected with the corresponding stop block 66 along the length direction of the lower leg support plate 32 is formed at the middle part of the lower end of each lower leg support plate 32 and is close to the corresponding thigh support plate 32; a stopper hole 311 is formed at one end of each thigh support plate 31 facing the lower leg support plate 32; one end of each stop block 66 facing the thigh supporting plate 31 is respectively formed with a stop plug 662 capable of being fixedly inserted into the corresponding stop hole 311; when the stopper plug 662 is fixedly inserted into the stopper hole 311, the thigh support plate 31 and the shank support plate 32 are approximately parallel.

One end of the clamping strip 61 close to the sliding column 411 is formed with a bearing groove 611 capable of preventing the sliding column 411 from sliding along the driving groove 322; a guide groove 612 is formed at the lower end of each clamping strip 61; the lower end of each lower leg support plate 32 is respectively formed with a guide block 327 which is slidably connected with the corresponding guide groove 612; a second spring 67 for pressing the bearing groove 611 against the sliding column 411 is arranged between each clamping strip 61 and the corresponding lower leg support plate 32; a spring mounting plate 326 for mounting the second spring 67 is formed at the lower end of each lower leg support plate 32.

When the stop block 66 is fixedly inserted into the thigh support plate 31, the driving arm 41 is not prevented from sliding by the clip strip 61, and the leg driving motor 43 operates to rotate the thigh support plate 31 in a reciprocating manner.

When the stop block 66 is not fixedly inserted into the thigh support plate 31, the driving arm 41 is prevented from sliding by the clip strip 61, and the leg driving motor 43 operates to rotate the thigh support plate 31 and the shank support plate 32 reciprocally relative to the thigh support plate 31.

Each switching component 6 further comprises a transmission block 63 which is connected to the lower end of the lower leg support plate 32 in a left-right sliding manner and can prevent the corresponding clamping strip 61 from moving, a transmission rod 65 which is connected to one end of the lower leg support plate 32 and is rotatably connected with the transmission block 63, and the other end of the lower leg support plate is connected with the stop block 66, and a pressing block 62 which is connected to the lower leg support plate 32 in a height direction in a sliding manner and is used for driving the transmission block 63 to slide left and right.

A first connecting head 631 is formed at the upper end of each transmission block 63; one end of each transmission rod 65, which is close to the corresponding transmission block 63, is respectively formed with a connection hole 651 rotatably connected with the corresponding first connection head 631; a second connector 661 is formed at the upper end of each stop block 66; one end of each transmission rod 65, which is close to the corresponding stop block 66, is respectively formed with a connecting groove 653 connected with the corresponding second connector; a middle rotating groove 652 is formed at the upper end of each driving rod 65 between the corresponding connecting hole 651 and the connecting groove 653; the lower end of each lower leg support plate 32 is formed with a rotation column 325 connected to the corresponding middle rotation groove 652.

When each of the transmission blocks 63 moves away from each other, the corresponding transmission rod 65 rotates around the middle rotation slot 652 of the transmission rod 65, so that the corresponding stop block 66 moves away from the thigh support plate 31.

A first spring 64 for moving the two transmission blocks 63 back and forth is arranged between each transmission block 63 and the corresponding lower leg support plate 32.

When the pressing block 62 is in the lower limit position, the stop block 66 is fixedly inserted into the thigh support plate 31, and the driving block 63 does not prevent the movement of the clamping strip 61, so that the clamping strip 61 does not prevent the driving arm 41 from sliding.

When the pressing block 62 is in the upper limit position, the stopping block 66 is not fixedly inserted into the thigh supporting plate 31, and the driving block 63 prevents the movement of the clamping strip 61, so that the clamping strip 61 prevents the driving arm 41 from sliding.

Each lower leg support plate 32 is provided with a foot driving part 5 for driving the feet to reciprocate; each foot driving part 5 comprises a pedal 51 mounted on the corresponding lower leg support plate 32 for driving the foot to reciprocate, and a foot driving motor 54 fixedly connected to the lower end of the corresponding lower leg support plate 32 for driving the pedal 51 to slide in a reciprocating manner.

The pedal 51 slides back and forth to drive the foot to move, so that the leg bends the knee back and forth and straightens the leg, and the hip joint, the knee joint and the ankle joint are moved.

Each foot driving part 5 further comprises a screw rod 53 rotatably connected to the lower part of the corresponding lower leg support plate 32 and in transmission connection with the output shaft of the corresponding foot driving motor 54, and a screw rod sliding seat 52 in sliding connection with the lower leg support plate 32 along the length direction of the lower leg support plate 32 and in transmission connection with the corresponding screw rod 53; each of the pedals 51 is rotatably connected to the corresponding screw rod sliding seat 52 in the left-right direction.

Screw rod seats 323 which are respectively and rotatably connected with the two ends of the corresponding screw rods 53 are respectively formed at the front and the rear ends of the corresponding screw rods 53 at the lower ends of the lower leg supporting plates 32; an output gear 541 is fixedly connected to an output shaft of each foot driving motor 54; one end of each lead screw 53 close to the corresponding foot driving motor 54 is fixedly connected with a lead screw gear 531 in transmission connection with the corresponding output gear 541.

A screw rod nut 521 which is in threaded connection with the corresponding screw rod 53 is formed at the lower end of each screw rod sliding seat 52; a pedal rotating seat b522 which is rotatably connected with the corresponding pedal 51 is formed at the upper end of each screw rod sliding seat 52; one end of each pedal 51 close to the corresponding screw rod sliding seat 52 is respectively formed with a pedal rotating seat a511 which is rotatably connected with the corresponding pedal rotating seat b 522.

When each of the pedals 51 is approximately parallel to the corresponding lower leg support plate 32, each of the pedals 51 abuts against the corresponding press block 62, and the press block 62 is at a lower limit position.

When each pedal 51 is approximately perpendicular to the corresponding lower leg support plate 32, each pedal 51 is not in contact with the corresponding press block 62, the press block 62 is at an upper limit position, and the pedal 51 can drive the foot to reciprocate.

A driving column 621 is formed on one side of each pressing block 62 facing the transmission block 63; a driving inclined plane 632 abutting against the corresponding driving post 621 is formed on one side of each transmission block 63 facing the pressing block 62.

A pressing block accommodating groove 513 capable of abutting against the pressing block 62 is formed at one end of each pedal 51 far away from the screw rod sliding seat 52.

When the pedal 51 is turned to a parallel state from a vertical state relative to the lower leg support plate 32, the pressing block accommodating groove 513 abuts against the pressing block 62 and enables the pressing block to slide downwards to a lower limit position, the driving column 621 drives the corresponding driving inclined surface 632, so that the two driving blocks 63 move oppositely to the limit position, at the moment, the stop plug 662 is fixedly inserted into the stop hole 311, the driving block 63 does not prevent the movement of the clamping strip 61, and the driving arm 41 can slide relative to the lower leg support plate 32.

When the pedal 51 is turned to the vertical state from the parallel state relative to the lower leg support plate 32, the pressing block accommodating groove 513 is not in contact with the pressing block 62, the two transmission blocks 63 move back to the limit position under the elastic force of the first spring 64, the driving inclined plane 632 drives the driving column 621 to enable the pressing block 62 to move upwards to the limit position, at this time, the stop plug 662 is located outside the stop hole 311, the transmission blocks 63 prevent the movement of the clamping strip 61, and the driving arm 41 cannot slide relative to the lower leg support plate 32.

Two symmetrically arranged clamping grooves 512 are formed at one end of each pedal 51 far away from the screw rod sliding seat 52; a pedal receiving groove 321 for receiving the pedal 51 is formed at the upper end of each lower leg supporting plate 32; each of the pedal receiving grooves 321 is formed therein with an elastic chuck 3211 that can be engaged with the corresponding slot 512.

When the pedal 51 is approximately parallel to the corresponding lower leg support plate 32, the pedal 51 is located in the corresponding pedal accommodating groove 513, and each elastic clamp 3211 is clamped with the corresponding clamping groove 512, so that the pressing block 62 is kept at a lower limit position.

A torsion spring 33 for making the thigh support plate 31 and the lower leg support plate 32 not parallel to each other is provided between each thigh support plate 31 and the corresponding lower leg support plate 32.

When the stopper plugs 662 are located at the outer sides of the corresponding stopper holes 311, the rotational connection between the thigh support plate 31 and the lower leg support plate 32 is arched upward under the elastic force of the torsion spring 33, so that the lower leg support plate 32 can more easily rotate relative to the thigh support plate 31 when the driving arm 41 drives the lower leg support plate 32 to move.

The bed board 2 comprises a fixed bed board 21 fixedly connected to the bedstead 1 and close to the rear end, and an overturning bed board 22 arranged along the left-right direction and rotatably connected to a rotating shaft at the front end of the fixed bed board 21; an electric push rod 23 for pushing the turnover bed board 22 to turn upwards is arranged between the turnover bed board 22 and the bed frame 1.

The seat body of the electric push rod 23 is fixedly connected with the bedstead 1; the rod body of the electric push rod 23 is connected with the lower end of the turnover bed plate 22; a supporting plate accommodating opening 211 for accommodating the thigh supporting plate 31, the shank supporting plate 32 and the driving arm 41 is formed at the upper end of the fixed bed plate 22; a thigh support plate support bar 212 for supporting the thigh support plate 31 is formed at the lower end of the fixed bed plate 22 under the support plate accommodating opening 211; when the thigh support plate 31 is located in the support plate receiving opening 211, the thigh support plate 31 abuts against the thigh support plate support strip 212, and at this time, the leg driving motor 41 can drive the shank support plate 32 to rotate downward.

A mattress A is arranged on the bed board 2; the mattress A is opened at a position right above the supporting plate accommodating hole 211; a sealing pad B for sealing the opening is arranged right above the supporting plate accommodating port 211.

The bed frame 1 is provided with a controller 11. The leg driving motor 43, the foot driving motor 54, and the electric push rod 23 are electrically connected to the controller 11; different rehabilitation training courses can be set according to different rehabilitation conditions of rehabilitation personnel through the controller 11.

In the initial state, the stopper plug 662 is positioned within the stopper hole 311, the torsion spring 33 is in a twisted state, and the first spring 64 is in a compressed state. The fixed bed plate 21 is relatively parallel to the turnover bed plate 22, the thigh support plate 31 and the shank support plate 32 are located in the support plate receiving opening 211, the thigh support plate 31 abuts against the thigh support plate support bar 212, and the pedal 51 is located in the pedal receiving groove 321. When the product is used, the sealing pad B is taken down.

When the product is used for carrying out rehabilitation training on hip joints, a rehabilitation person can lie on the mattress A, so that the two thighs are respectively positioned right above the thigh supporting plate 31. The corresponding 'hip joint' control key on the controller 11 is selected, then the rehabilitation time, the movement times and the movement amplitude are adjusted on the controller 11, and then the corresponding start key is pressed. The controller 11 controls the leg driving motor 43 to rotate forward, and the output torque of the leg driving motor 43 is amplified by the reduction box 42, so that the driving arm 41 rotates upward. The upward movement of the sliding column 411 drives the driving slot 322 to move, so that the thigh supporting plate 31 rotates upward, thereby driving the thigh of the rehabilitation person to move upward. In the process, the sliding column 411 slides along the driving groove 322, the sliding column 411 presses down the pressure bearing groove 611, so that the clamping strip 61 moves downwards along the guide block 327, and the second spring 67 is compressed. After the leg driving motor 43 rotates forward for a certain number of turns, the thigh support plate 31 rotates upward to the set movement range, then the leg driving motor 43 rotates reversely, so that the driving arm 41 rotates downward to the initial position, the clamping strip 61 slides reversely to the initial position under the elastic force of the second spring 67, and the thigh of the rehabilitation person is driven to move downward synchronously. The thigh is lifted up and down in a reciprocating manner in this way, so that the hip joint is rehabilitated, and after the rehabilitation is completed, the leg driving motor 43 stops rotating, and the thigh support plate 31 is located at the initial position. Through the controller 11, the two thigh support plates 31 can be set to move together or independently, the lifting amplitude and lifting time of the thigh support plates 31 can also be set, and a rehabilitation training course can be set according to different rehabilitation conditions of rehabilitation personnel.

When the product is used for rehabilitation training of hip joints and knee joints, the pedal 51 is stirred upwards to rotate to the limit position, the upper end of the pressing block 62 is not pressed downwards any more, the transmission block 63 moves outwards under the action of the elastic force of the first spring 64 to the limit position, the inclined plane 632 is driven to move outwards to drive the driving column 621 to move upwards, and the pressing block 62 is driven to move upwards to the limit position. Meanwhile, the transmission block 63 moves to enable the transmission rod 65 to rotate around the middle rotating groove 652, the stop block 66 is pulled to move to enable the stop plug 662 to leave the stop hole 311, the thigh support plate 31 and the shank support plate 32 are not parallel to each other under the action of the elastic force of the torsion spring 33, and the thigh support plate 31 rotates upwards for a certain angle. The rehabilitation person can lie on the mattress A, the two thighs are respectively positioned right above the thigh supporting plate 31, and the two feet step on the corresponding pedals 51. The corresponding 'hip joint and knee joint' control keys on the controller 11 are selected, then the rehabilitation time, the movement times and the movement amplitude are adjusted on the controller 11, and then the corresponding start keys are pressed.

The controller 11 controls the leg driving motor 43 to rotate forward, so that the driving arm 41 rotates upward, and the sliding column 411 moves upward to drive the driving slot 322 to move, so that the thigh supporting plate 31 rotates upward. Since the outward movement of the driving block 63 will abut against the end of the locking bar 61 away from the bearing groove 611, the locking bar 61 cannot slide, and therefore the sliding column 411 cannot slide along the driving groove 322. The upward rotation of drive arm 41 causes thigh support plate 31 to rotate upward while the angle between thigh support plate 31 and calf support plate 32 decreases, thereby allowing the hip and knee joints to move. After the leg driving motor 43 rotates forward for a certain number of turns, the thigh support plate 31 and the shank support plate 32 rotate upward to the set motion amplitude, then the leg driving motor 43 rotates reversely, so that the driving arm 41 rotates downward to the initial position, the shank support plate 32 rotates downward to the set motion amplitude through the support plate accommodating opening 211, the thigh support plate 31 moves to the initial position under the blocking of the thigh support plate support strip 212, and then the hip joint and the knee joint are moved. Reciprocating in this way, after the rehabilitation training is completed, the leg driving motor 43 stops rotating, and at this time, the thigh support plate 31 and the calf support plate 32 move to the initial positions. Through the controller 11, the two thigh support plates 31 and the lower leg support plates 32 can be set to move together or separately, the lifting amplitude and the lifting time of the thigh support plates 31 and the thigh support plates 32 can also be set, and a rehabilitation training course can be set according to different rehabilitation conditions of rehabilitation personnel.

After use, thigh support plate 31 is depressed so that thigh support plate 31 and calf support plate 32 are relatively parallel, and pedal 51 is toggled to return to the initial position. The pedal 51 will press the pressing block 62 downwards to move the pressing block 62 to the initial position, and the driving rod 621 will drive the driving inclined plane 632 to move to the extreme position and the first spring 64 is compressed. The inward movement of the actuator block 63 causes the actuator rod 65 to pivot about the central pivot slot 652, pushing the stop block 66 to move, allowing the stop plug 662 to re-enter the stop hole 311, releasing the thigh support plate 31, with the thigh support plate 31 and the calf support plate 32 in parallel.

When the product is used for rehabilitation training of hip joints, knee joints and ankle joints, the pedal 51 is stirred upwards to rotate to the limit position, the transmission block 63 moves outwards under the action of the elastic force of the first spring 64 to the limit position, and the inclined plane 632 is driven to move outwards to enable the pressing block 62 to move upwards to the limit position. At the same time, the transmission block 63 moves to make the transmission rod 65 pull the stop block 66 to move so that the stop plug 662 leaves the stop hole 311, the thigh support plate 31 and the shank support plate 32 are no longer parallel to each other under the elastic force of the torsion spring 33, and the thigh support plate 31 is rotated upward at a certain angle. The rehabilitation person can lie on the mattress A, the two thighs are respectively positioned right above the thigh supporting plate 31, and the two feet step on the corresponding pedals 51. The corresponding 'hip joint, knee joint and ankle joint' control keys on the controller 11 are selected, the controller 11 controls the leg driving motor 43 to reversely rotate to the limit position, so that the driving arm 41 rotates downwards and simultaneously drives the shank supporting plate 32 to rotate downwards to the limit position, the shank supporting plate 32 and the ground form an included angle of 70-80 degrees, then the controller 11 controls the rod body of the electric push rod 23 to extend outwards, the turnover bed plate 22 is turned upwards, and the rehabilitation personnel lying on the product can sit up step by step. Then, the rehabilitation time, the number of movements and the movement amplitude are adjusted on the controller 11, and then the corresponding start key is pressed.

The controller 11 controls the foot driving motor 54 to rotate in the forward direction, so that the output gear 541 rotates to rotate the lead screw gear 531, thereby rotating the lead screw 53. The screw rod nut 521 moves towards the direction of the foot driving motor 54 along the screw rod 53 under the guiding action of the screw rod 53, so that the screw rod sliding seat 52 drives the pedal 51 to move towards the direction of the foot driving motor 54 to push the foot to move, and the leg bends the knee. After foot driving motor 54 forward-direction rotated a certain number of turns, footboard 51 moved to the motion amplitude that sets up, and foot driving motor 54 antiport for footboard 51 drives foot's motion and makes the shank straighten, so reciprocal, and after the rehabilitation training that sets up was accomplished, foot driving motor 54 stopped rotating, and footboard 51 moved to the primary importance. Through the controller 11, the two pedals 51 can be set to move together or separately, the amplitude and time of the movement of the pedals 51 can also be set, and the rehabilitation training course can be set according to different rehabilitation conditions of rehabilitation personnel.

After the use, the control button of hip joint, knee joint and ankle joint is pressed again, the controller 11 controls the leg driving motor 43 to rotate forward, so that the driving arm 41 drives the shank supporting plate 32 to rotate upwards to the initial position, and simultaneously controls the rod body of the electric push rod 23 to retract inwards, and the bed plate 22 is turned over to return to the initial position. Pressing down on thigh support plate 31 causes thigh support plate 31 and calf support plate 32 to be relatively parallel, and then toggling pedal 51 back to its initial position. The pedal 51 will press the pressing block 62 downwards to move the pressing block 62 to the initial position, and the driving rod 621 will drive the driving inclined plane 632 to move to the extreme position and the first spring 64 is compressed. The inward movement of the actuator block 63 causes the actuator rod 65 to pivot about the central pivot slot 652, pushing the stop block 66 to move, allowing the stop plug 662 to re-enter the stop hole 311, releasing the thigh support plate 31, with the thigh support plate 31 and the calf support plate 32 in parallel.

According to the invention, by arranging the stop block 66, when the stop block 66 is positioned in the stop hole 311, the clamping strip 61 can slide along the guide block 327, the thigh supporting plate 31 and the shank supporting plate 32 are relatively fixed, the leg driving motor 43 works to enable the thigh supporting plate 31 to rotate, the driving column 621 slides along the driving groove 322, and then the hip joint is enabled to move; when the stop block 66 is located outside the stop hole 311, the clip strip 61 and the lower leg support plate 32 are relatively fixed, the leg driving motor 43 operates, and the thigh support plate 31 and the lower leg support plate 32 relatively rotate while the thigh support plate 31 rotates, so that the hip joint and the knee joint are moved.

According to the invention, by arranging the pressing block 62, when the pressing block 62 moves downwards to the limit position, the driving column 621 drives the driving inclined plane 632 to move inwards to the limit position, so that the transmission rod 65 rotates around the middle rotating groove 652, the stop block 66 is further pushed to move, the stop plug 662 enters the stop hole 311, and the leg driving motor 43 works to enable the thigh supporting plate 31 to rotate; when the pressing block 62 moves upwards to the limit position, the transmission block 63 moves outwards to the limit position under the elastic force of the first spring 64, so that the stop plug 662 leaves the stop hole 311, meanwhile, the transmission block 63 abuts against one end, away from the sliding column 411, of the clamping strip 61, the sliding column 411 is prevented from sliding along the driving groove 322, and the leg driving motor 43 works to enable the thigh supporting plate 31 to rotate and simultaneously enable the thigh supporting plate 31 and the shank supporting plate 32 to rotate relatively.

According to the invention, by arranging the pedal 51, when the pedal 51 is positioned in the pedal accommodating groove 321, the pedal 51 presses the pressing block 62 downwards, so that the stop plug 662 is kept in the stop hole 311, and the leg driving motor 43 works to enable the thigh supporting plate 31 to rotate so as to drive the hip joint to move; when the pedal 51 is positioned outside the pedal receiving groove 321, the pressing piece 62 is positioned at the upper end limit position under the elastic force of the first spring 64, the stopper plug 662 is positioned outside the stopper hole 311, and the leg driving motor 43 is operated, so that the thigh support plate 31 and the shank support plate 32 rotate relatively while the thigh support plate 31 rotates; in addition, the foot driving motor 54 rotates to enable the pedal 51 to slide along the screw 53, so as to drive the foot to move, and the hip joint, the knee joint and the ankle joint are moved.

Claims

1. An orthopedic leg rehabilitation bed comprises a bed frame and a bed board arranged at the upper end of the bed frame; the method is characterized in that: the rear part of the bed plate is rotationally connected with two thigh supporting plates which are symmetrically arranged and are used for driving thighs to reciprocate, and rotating shafts are arranged along the left and right directions; the rear end of each thigh supporting plate is respectively and rotatably connected with a shank supporting plate which is arranged along the left-right direction by a rotating shaft and is used for driving shanks to reciprocate; two leg driving parts for driving the corresponding thigh supporting plates and the corresponding shank supporting plates to rotate in a reciprocating manner are arranged at the lower end of the bed plate; each leg driving part comprises a driving arm which is arranged along the left-right direction of a rotating shaft rotationally connected to the bed plate and is positioned on one side of the shank supporting plate, and a leg driving motor which is fixedly connected to the lower end of the bed plate and is used for driving the driving arm to rotate; one end of each driving arm, which is far away from the leg driving motor, is respectively connected with the corresponding shank support plate in a sliding manner along the length direction of the shank support plate; the lower end of each shank supporting plate is provided with a switching component; each switching component comprises a stop block which is connected to the lower end of the corresponding shank supporting plate in a sliding manner along the length direction of the shank supporting plate and can be fixedly inserted into the corresponding thigh supporting plate, and a clamping strip which is connected to the lower end of the shank supporting plate in a sliding manner along the length direction of the shank supporting plate and can prevent the driving arm from sliding;

when the stop block is fixedly inserted with the thigh supporting plate, the clamping strip does not prevent the driving arm from sliding, and the leg driving motor works to enable the thigh supporting plate to rotate in a reciprocating manner;

2. An orthopedic leg rehabilitation bed as recited in claim 1, wherein: each switching component also comprises a transmission block which is connected to the lower end of the shank support plate in a sliding mode along the left-right direction and can prevent the corresponding clamping strip from moving, a transmission rod which is connected to one end of the lower end of the shank support plate and is rotatably connected with the transmission block, and a pressing block which is connected to the shank support plate in a sliding mode along the height direction of the shank support plate and is used for driving the transmission block to slide left and right;

when the pressing block is located at the lower limit position, the stop block is fixedly inserted into the thigh supporting plate, and the transmission block does not prevent the clamping strip from moving, so that the clamping strip does not prevent the driving arm from sliding;

3. An orthopedic leg rehabilitation bed as recited in claim 2, wherein: a foot driving part for driving the feet to reciprocate is respectively arranged on each lower leg supporting plate; each foot driving part comprises a pedal which is arranged on the corresponding shank supporting plate and is used for driving the foot to reciprocate and a foot driving motor which is fixedly connected to the lower end of the corresponding shank supporting plate and is used for driving the pedal to slide in a reciprocating mode.

4. An orthopedic leg rehabilitation bed as recited in claim 3, wherein: each foot driving part also comprises a screw rod which is rotationally connected to the lower part of the corresponding shank supporting plate and is in transmission connection with the output shaft of the corresponding foot driving motor, and a screw rod sliding seat which is in sliding connection with the shank supporting plate along the length direction of the shank supporting plate and is in transmission connection with the corresponding screw rod; each pedal is respectively connected with the corresponding screw rod sliding seat in a rotating mode along the left and right directions;

when each pedal is approximately parallel to the corresponding shank support plate, each pedal abuts against the corresponding press block, and the press block is located at the lower limit position;

5. An orthopedic leg rehabilitation bed as recited in claim 4, wherein: a driving column is formed on one side, facing the transmission block, of each pressing block; and a driving inclined plane which is abutted against the corresponding driving column is formed on one side of each transmission block, which faces the pressing block.

6. An orthopedic leg rehabilitation bed as recited in claim 4, wherein: two symmetrically arranged clamping grooves are formed at one end of each pedal, which is far away from the screw rod sliding seat; a pedal accommodating groove for accommodating the pedal is formed at the upper end of each shank supporting plate; each elastic clamping head capable of being clamped with the corresponding clamping groove is formed in the pedal accommodating groove respectively.

7. An orthopedic leg rehabilitation bed as recited in claim 1, wherein: and a torsion spring used for enabling the thigh supporting plate and the shank supporting plate not to be parallel relatively is arranged between each thigh supporting plate and the corresponding shank supporting plate.

8. An orthopedic leg rehabilitation bed as recited in claim 3, wherein: the bed board comprises a fixed bed board which is fixedly connected to the bed frame and is close to the rear end and an overturning bed board which is rotatably connected to a rotating shaft at the front end of the fixed bed board and is arranged along the left-right direction; an electric push rod used for pushing the turnover bed board to turn upwards is arranged between the turnover bed board and the bed frame.

9. An orthopedic leg rehabilitation bed as recited in claim 1, wherein: the bed frame is provided with a controller.