CN113952683A

CN113952683A - Lower limb exercising device for orthopedic rehabilitation

Info

Publication number: CN113952683A
Application number: CN202111114604.5A
Authority: CN
Inventors: 吴登敏
Original assignee: Second Affiliated Hospital and Yuying Childrens Hospital of Wenzhou Medical University
Current assignee: Second Affiliated Hospital and Yuying Childrens Hospital of Wenzhou Medical University
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-01-21
Anticipated expiration: 2041-09-23
Also published as: CN113952683B

Abstract

The invention discloses a lower limb exercising device for orthopedic rehabilitation, which comprises a base and a supporting piece, wherein the base is horizontally distributed, the supporting piece is vertically arranged at one end of the top surface of the base, a seat is arranged at the top end of the supporting piece, two exercising mechanisms are movably arranged on the top surface of the base and symmetrically distributed about the central axis of the supporting piece, and when the lower limb exercising device is used, two feet of a patient are respectively placed on the two exercising mechanisms and can slide back and forth along the tracks of the exercising mechanisms. The exercise form is added, so that the exercise interest is improved, and the exercise enthusiasm of the patient can be improved; the patient can be flexibly adjusted according to the requirement, the adaptability of use is improved, and the device is suitable for patients with different illness states and physical qualities; the effect of gradual change of resistance is achieved, and the feeling experience of the legs of the patient is changed; the resistance to the resistance block can be adjusted through the forward and reverse rotation of the threaded rod, and the adjustable resistance block has flexible adjusting performance and is convenient to use.

Description

Lower limb exercising device for orthopedic rehabilitation

Technical Field

The invention relates to the technical field of orthopedic rehabilitation, in particular to a lower limb exercising device for orthopedic rehabilitation.

Background

The rehabilitation therapy of orthopedics department is extremely important, and is an important guarantee for preventing complications and recovering functions in early stage. The method mainly comprises the following steps: 1. in the early stage, within 1-2 weeks after fracture, the rehabilitation therapy aims at promoting blood circulation of the affected limb, eliminating swelling and preventing muscular atrophy, and the functional exercise mainly comprises the active relaxing and contracting activities of the affected limb. 2. In the middle stage, namely two weeks after fracture, the swelling of the affected limb is resolved, the local pain is relieved, and the fracture is connected by fibers and becomes stable day by day. 3. In the later stage, the fracture reaches the outside of the clinical healing standard, the fixation is removed, which is the key period of rehabilitation treatment, particularly for patients with insufficient early and middle rehabilitation treatment, the swelling of limbs and the joint stiffness should be eliminated as early as possible by exercising, and physical treatment and external medicine fumigation are assisted to promote the recovery of the joint movement range and the muscle strength.

It needs the recovered condition to see the low limbs in recovered in orthopedics, and at the recovered in-process of patient's low limbs, need carry out suitable exercise operation to the low limbs, and traditional exercise mode is walked with the help of the instrument on foot, has the potential safety hazard of falling, then someone designs special exercise device, nevertheless, has following shortcoming in the present exercise device: 1. the exercise form of the feet is single, so that the lower limb exercise form of a patient is single, the exercise effect is poor, and the exercise enthusiasm of the patient cannot be improved; 2. the direction of foot movement can not be adjusted, and the foot movement can not adapt to different disease conditions of different patients, so that the adaptability is poor; 3. the damping force can not be adjusted, and the flexibility in use is poor.

Disclosure of Invention

The invention aims to provide a lower limb exercising device for orthopedic rehabilitation, which aims to solve the problems that the lower limb exercising form of a patient is single, the exercising effect is poor and the exercising enthusiasm of the patient cannot be improved due to the single moving form of feet; the direction of foot movement can not be adjusted, and the foot movement can not adapt to different disease conditions of different patients, so that the adaptability is poor; the damping force can not be adjusted, and the flexibility is poor.

In order to realize the purpose of the invention, the invention adopts the following technical scheme: the utility model provides a device is tempered to low limbs for recovered orthopedics, includes base and support piece, base horizontal distribution, the vertical setting of support piece is served on the top surface of base, support piece's top is equipped with the seat, it is equipped with two exercise mechanism, two still to move about on the top surface of base exercise mechanism is about support piece's axis symmetric distribution, during the use, patient's both feet are placed respectively on two exercise mechanism and can be along exercise mechanism's track reciprocating sliding.

Preferably, the exercise mechanism is rotatably connected with the base, the exercise mechanism comprises a first slide rail, a foot bearing mechanism and a second slide rail, the inner end of the first slide rail is fixedly connected with the side wall of the second slide rail, the first slide rail is communicated with the second slide rail, the foot bearing mechanism is slidably arranged on the first slide rail or the second slide rail, and the foot bearing mechanism can be freely switched between the first slide rail and the second slide rail.

Preferably, the trajectory line of the first slide rail is an arc line, the central angle corresponding to the arc line is alpha, alpha is greater than or equal to 30 degrees and is less than or equal to 90 degrees, the trajectory line of the second slide rail is a straight line, the circle center of the arc line is located at the inner end of the second slide rail, and the first slide rail and the second slide rail are in fillet transition.

Preferably, the bottom surface of first slide rail, second slide rail hookup location department is equipped with the disc, the bottom surface of disc and the top surface of base are parallel to each other, the bottom surface of disc rotates through pivot and base to be connected, and the axis of pivot and the axis coincidence of disc, the one end bottom surface that the disc was kept away from to first slide rail, second slide rail all is equipped with the ball, the ball can roll on the top surface of base, be equipped with locating component between disc and the base.

Preferably, a sliding block is arranged on the bottom surface of the foot bearing mechanism, the sliding block is arranged in a sliding groove of the first sliding rail or the second sliding rail in a sliding mode, a damping mechanism is arranged between one end, close to the supporting piece, of the second sliding rail and the sliding block, an adjusting mechanism is arranged between the damping mechanism and the second sliding rail, and the adjusting mechanism is used for adjusting damping force between the damping mechanism and the sliding block.

Preferably, damping mechanism includes two resistance pieces, an elastic component and two resistance boards, logical groove has been seted up to the inside of slider, two the resistance piece is located the inside both ends that lead to the groove respectively, the elastic component sets up between two resistance pieces, the resistance board rotates and sets up in the spout of second slide rail, two the resistance board is located the both sides of slider respectively.

Preferably, adjustment mechanism includes two nuts, threaded rod, locating piece, location plug-in components and positioning hole, two the nut rotates respectively and connects on the tip of resistance board, two the locating piece slides respectively and sets up the inside both sides of spout at the second slide rail, the threaded rod passes through the bearing setting between two locating pieces, two the nut is threaded connection respectively on the both ends of threaded rod, the screw thread on the both ends of threaded rod is revolved to opposite, positioning hole sets up on the lateral wall of second slide rail, location plug-in components insert and establish between positioning hole and locating piece.

Preferably, the inboard of resistance board is equipped with the rubber pad that is used for increasing frictional resistance between resistance board, the resistance piece, the outer end of resistance piece adopts the fillet transition, the elastic component is rectangle coil spring.

Preferably, the foot bearing mechanism includes a bearing box provided on a top surface of the slider, a first strap provided between both sides of the bearing box, and a second strap provided between the first strap and a front side of the bearing box, the first strap being fixedly connected to an inner end of the second strap at a central position.

Preferably, support piece is hydraulic telescoping rod, still includes control module, temperature sensor, humidity transducer, infrared detector and voice broadcast module, infrared detector sets up on the inboard of seat, temperature sensor, humidity transducer, voice broadcast module all set up on the bottom surface of seat, temperature sensor, humidity transducer, infrared detector, voice broadcast module all and control module between electric connection, control module still electric connection has timing module.

Compared with the prior art, the lower limb exercising device for orthopedic rehabilitation, which adopts the technical scheme, has the following beneficial effects:

firstly, in the using process, the feet of the patient are respectively placed in the two foot bearing mechanisms, when the foot bearing mechanisms are positioned on the second slide rail, the feet apply linear force to make the foot bearing mechanism move linearly along the second slide rail, which has exercise effect, when the foot bearing mechanism moves to the position of the junction of the inner end of the first slide rail and the second slide rail, the patient can apply force through the foot to switch and move the foot bearing mechanism from the second slide rail to the first slide rail, then the foot applies force along the direction of the arc line, so that the foot bearing mechanism moves back and forth along the direction of the arc line of the first slide rail, and the exercise effect is achieved;

when the first sliding rail and the second sliding rail face different directions, the foot of a patient needs to exercise and apply force in different directions, and the patient can flexibly adjust the foot according to the requirement, so that the use adaptability is improved, and the foot-adjustable medical bed is suitable for patients with different illness states and physical qualities;

thirdly, the bottom surface of the foot bearing mechanism drives the sliding block to slide in the sliding groove of the first sliding rail or the second sliding rail, when the sliding block slides to the position between the two resistance plates, the outer ends of the two resistance blocks respectively press and contact the inner side surfaces of the two resistance plates, so that the resistance plates apply friction resistance to the resistance blocks, the damping effect is achieved, the blocking force to the feet of the patient can be properly increased, the exercise effect is improved, in view of the fact that the two resistance plates are arranged in an acute angle, the resistance blocks continue to move towards the adjusting mechanism along with the driving of the sliding block, the distance between the two resistance plates is gradually reduced, the resistance borne by the resistance blocks is gradually increased, the effect of gradually-changed resistance is achieved, the experience of the legs of the patient is changed, in addition, when the sliding block is gradually close to the adjusting mechanism, the two resistance blocks are gradually close to the through groove, the distance between the two resistance blocks is gradually reduced, and simultaneously, the rectangular spiral spring is compressed and shortened, and when the sliding block moves in the opposite direction and gradually moves away from the adjusting mechanism, the two resistance blocks are away from each other and return to the initial position under the action of the elastic force of the elastic piece, so that the next damping operation is facilitated;

four, when using the hand to rotate the threaded rod, screw thread on the both ends of threaded rod and two nut threaded connection and threaded rod revolves under opposite effect, two nut motion in opposite directions, when two nuts are close to each other, two nuts drive the free end inward movement of two resistance boards respectively, thereby contained angle between two resistance boards reduces, can increase the damping dynamics to the resistance piece, when two nuts keep away from each other, two nuts drive the free end outward movement of two resistance boards respectively, thereby contained angle between two resistance boards increases, can reduce the damping dynamics to the resistance piece, also can adjust the resistance size to the resistance piece through the forward and reverse rotation of threaded rod, have nimble regulation performance, convenient to use.

Drawings

Fig. 1 is a schematic perspective view of a lower limb exercise device for orthopedic rehabilitation according to an embodiment of the present invention.

Fig. 2 is a perspective view (another view) of the embodiment.

Fig. 3 is a perspective view (another view) of the embodiment.

FIG. 4 is a schematic top view of an embodiment.

Fig. 5 is a schematic top view of the embodiment (when an acute angle is formed between two second sliding rails).

FIG. 6 is a schematic side view of an embodiment.

FIG. 7 is a perspective view of the foot supporting mechanism in the embodiment.

FIG. 8 is a schematic top-view of the damper mechanism and the adjustment mechanism in the embodiment.

Fig. 9 is a block diagram in the embodiment.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

The lower limb exercising device for orthopedic rehabilitation as shown in fig. 1-6 comprises a base 1 and a support 2, wherein the base 1 is horizontally distributed, the support 2 is vertically arranged at one end of the top surface of the base 1, and a seat 21 is arranged at the top end of the support 2, wherein the base 1 is of a horizontal plate-shaped structure, the seat 21 is provided with a bottom plate and side plates, the bottom plate is horizontally distributed, and the side plates are arranged around the periphery of the rear side of the bottom plate. Still the activity is equipped with two exercise mechanism on the top surface of base 1, and two exercise mechanism are around the axis symmetric distribution of support piece 2.

In the use process, the patient sits on the bottom plate, and the curb plate plays the effect of enclosing the fender along circumference from patient's back waist for the patient can be stable sit on seat 21, ensure that patient's safety takes exercise the operation. Specifically, patient's both feet are placed respectively on two exercise mechanism and along exercise mechanism's track reciprocating sliding to temper patient's low limbs, wherein, two exercise mechanism are about the design of support piece 2's axis symmetric distribution, make patient's both legs also present the distribution of symmetry formula at the exercise in-process, accord with human natural structure, improve patient's comfort level, improve patient's use and experience.

As shown in fig. 1-4, the exercise mechanism is rotatably connected to the base 1, and specifically, the exercise mechanism includes a first slide rail 3, a foot supporting mechanism 4 and a second slide rail 6, an inner end of the first slide rail 3 is fixedly connected to a side wall of the second slide rail 6, an inner end of the first slide rail 3 is communicated with the second slide rail 6, the foot supporting mechanism 4 is slidably disposed on the first slide rail 3 or the second slide rail 6, and the foot supporting mechanism 4 can be freely switched between the first slide rail 3 and the second slide rail 6. Specifically, the trajectory line of the first slide rail 3 is an arc line, the central angle corresponding to the arc line is alpha, alpha is more than or equal to 30 degrees and less than or equal to 90 degrees, the trajectory line of the second slide rail 6 is a straight line, the circle center of the arc line is positioned at the inner end of the second slide rail 6, and the inner end of the first slide rail 3 and the second slide rail 6 are in fillet transition.

In the using process, the feet of the patient are respectively placed in the two foot bearing mechanisms 4, when the foot bearing mechanisms 4 are positioned on the second slide rail 6, the feet exert linear force, so that the foot bearing mechanism 4 can move linearly along the second slide rail 6, which has the effect of exercising, when the foot support 4 is moved to the point where the inner end of the first slide rail 3 meets the second slide rail 6, the patient can apply force through the foot to switch and move the foot bearing mechanism 4 from the second slide rail 6 to the first slide rail 3, then the dynamics along the arc line direction is applyed to foot for foot bearing mechanism 4 also has the effect of taking exercise along the arc line direction reciprocating motion of first slide rail 3, and foot bearing mechanism 4 has increased the motion form in the smooth switching between linear motion, the arc line motion, has improved the interest of taking exercise, can improve the enthusiasm that the patient took exercise. In addition, alpha is more than or equal to 30 and is less than or equal to 90 designs, can make the range restriction of arc motion to foot load-bearing mechanism 4 in certain extent, avoid range too big strain patient's shank muscle, finally, adopt the design of fillet transition between the inner of first slide rail 3 and the second slide rail 6, can improve first slide rail 3, joint strength between the second slide rail 6, avoid first slide rail 3, unexpected fracture between the second slide rail 6, ensure that foot load-bearing mechanism 4 can be at first slide rail 3, safe switching between the second slide rail 6, can also increase first slide rail 3 in moderate degree, the size of second slide rail 6 butt joint boundary position department, ensure that foot load-bearing mechanism 4 can be at first slide rail 3, smooth switching between the second slide rail 6.

As shown in fig. 1-6, a disc 5 is disposed on a bottom surface of a connection position of a first slide rail 3 and a second slide rail 6, the bottom surface of the disc 5 is parallel to a top surface of a base 1, a bottom surface of the disc 5 is rotatably connected to the base 1 through a rotating shaft, and an axis of the rotating shaft coincides with an axis of the disc 5, balls 31 are disposed on bottom surfaces of ends, away from the disc 5, of the first slide rail 3 and the second slide rail 6, the balls 31 can roll on the top surface of the base 1, a positioning assembly is disposed between the disc 5 and the base 1, and specifically, the positioning assembly includes a positioning plug pin 51 and a plurality of positioning plug holes, wherein the positioning plug holes are disposed on the top surface of the base 1, the plurality of positioning plug holes are uniformly distributed along a circumferential direction around the axis of the rotating shaft, and the positioning plug pin 51 is disposed between the disc 5 and the positioning plug holes.

In the using process, a patient can apply circumferential rotation force on the edge of the disc 5 according to the self requirement, the disc 5 rotates circumferentially under the action of the rotating shaft, the disc 5 drives the first slide rail 3 and the second slide rail 6 to swing simultaneously, wherein the balls 31 at the bottom ends of the first slide rail 3 and the second slide rail 6 roll along the top surface of the base 1, the balls 31 are used for supporting one end of the first slide rail 3 and one end of the second slide rail 6, which are far away from the disc 5, so as to ensure that the first slide rail 3 and the second slide rail 6 are stably supported and positioned in the horizontal plane all the time, so as to ensure that the patient can smoothly exercise, when the disc 5 drives the first slide rail 3 and the second slide rail 6 to rotate to the required direction, the positioning plug pins 51 penetrate through the through holes of the disc 5, and the bottom ends of the positioning plug pins 51 are inserted into the positioning insertion holes, so as to position the disc 5 and make it unable to rotate, further fix a position first slide rail 3, the position of second slide rail 6, then the patient both can temper the operation, that is, can change first slide rail 3, the position of second slide rail 6 through the rotation of disc 5, when first slide rail 3, second slide rail 6 orientation difference position, the dynamics that different directions need be applyed in patient's foot exercise, the patient can come nimble regulation as required, the adaptability of using has been improved, adapt to different state of an illness, the patient of the physical quality.

As shown in fig. 8, a sliding block 7 is disposed on the bottom surface of the foot supporting mechanism 4, the sliding block 7 is slidably disposed in a sliding slot of the first sliding rail 3 or the second sliding rail 6, wherein the sliding block 7 is a cylindrical table structure, and a damping mechanism is disposed between one end of the second sliding rail 6 close to the supporting member 2 and the sliding block 7. Specifically, damping mechanism includes two resistance pieces 81, an elastic component 82 and two resistance boards 83, logical groove has been seted up to the inside of slider 7, two resistance pieces 81 are located the inside both ends that lead to the groove respectively, elastic component 82 sets up between two resistance pieces 81, wherein, resistance piece 81 adopts cylindric structure, the central line coincidence of two resistance pieces 81, resistance board 83 rotates the setting in the spout of second slide rail 6, two resistance boards 83 are located the both sides of slider 7 respectively, specifically, two resistance boards 83 are located the both sides position department of two resistance pieces 81 respectively. The inboard of resistance board 83 is equipped with the rubber pad that is used for increasing frictional resistance between resistance board 83, the resistance piece 81, and the outer end of resistance piece 81 adopts the fillet transition, and elastic component 82 is rectangle coil spring.

In the using process, the bottom surface of the foot bearing mechanism 4 drives the sliding block 7 to slide in the sliding groove of the first sliding rail 3 or the second sliding rail 6, when the sliding block 7 slides to the position between the two resistance plates 83, the outer ends of the two resistance blocks 81 respectively press and contact the inner side surfaces of the two resistance plates 83, so that the resistance plates 83 apply friction resistance to the resistance blocks 81, the damping effect is achieved, the blocking force to the feet of the patient can be properly increased, the exercise effect is improved, in view of the acute angle arrangement between the two resistance plates 83, the resistance blocks 81 are driven by the sliding block 7 to continue moving towards the adjusting mechanism, the distance between the two resistance plates 83 is gradually reduced, the resistance borne by the resistance blocks 81 is gradually increased, the resistance gradual change effect is achieved, the experience of the legs of the patient is changed, in addition, when the sliding block 7 is gradually close to the adjusting mechanism, the two resistance blocks 81 are gradually close to the through groove, the distance between the two resistance blocks 81 is gradually reduced, and at the same time, the rectangular coil spring is compressed and shortened, and when the slider 7 moves in the opposite direction and gradually gets away from the adjusting mechanism, the two resistance blocks 81 get away from each other and return to the initial position under the elastic force of the elastic member 82, so as to facilitate the next damping operation.

As shown in fig. 8, an adjusting mechanism is arranged between the damping mechanism and the second slide rail 6, and the adjusting mechanism is used for adjusting the damping force between the damping mechanism and the slide block 7. Specifically, adjustment mechanism includes two nuts 91, threaded rod 92, locating piece 93, location plug-in components 94 and positioning hole 95, two nuts 91 rotate respectively and connect on the tip of resistance board 83, two locating pieces 93 slide respectively and set up the inside both sides of spout at second slide rail 6, threaded rod 92 passes through the bearing setting between two locating pieces 93, two nuts 91 are threaded connection respectively on the both ends of threaded rod 92, the screw thread on the both ends of threaded rod 92 is revolved to opposite, positioning hole 95 sets up on the lateral wall of second slide rail 6, location plug-in components 94 inserts and establishes between positioning hole 95 and locating piece 93.

In the using process, when the threaded rod 92 is rotated by hand, under the effects that the threaded rod 92 is in threaded connection with the two nuts 91 and the thread turning directions on the two ends of the threaded rod 92 are opposite, the two nuts 91 move in opposite directions, when the two nuts 91 approach each other, the two nuts 91 respectively drive the free ends of the two resistance plates 83 to move inwards, so that the included angle between the two resistance plates 83 is reduced, the damping force on the resistance block 81 can be increased, when the two nuts 91 are far away from each other, the two nuts 91 respectively drive the free ends of the two resistance plates 83 to move outwards, so that the included angle between the two resistance plates 83 is increased, the damping force on the resistance block 81 can be reduced, namely, the resistance on the resistance block 81 can be adjusted through the forward and reverse rotation of the threaded rod 92, the flexible adjusting performance is achieved, and the use is convenient; after the adjustment is finished, the positioning plug-in 94 penetrates through the positioning through hole 95, and the inner end of the positioning plug-in 94 is inserted into the positioning block 93, so that the position of the threaded rod 92 is positioned, the inclined positions of the two resistance plates 83 are further positioned, the stability of the positions of the resistance plates 83 is ensured, and the use is facilitated.

As shown in fig. 7, the foot bearing mechanism 4 includes a bearing box 41, a first strap 42 and a second strap 43, the bearing box 41 is provided on the top surface of the slider 7, the first strap 42 is provided between both sides of the bearing box 41, the second strap 43 is provided between the first strap 42 and the front side of the bearing box 41, and the first strap 42 is fixedly connected to the inner end of the second strap 43 at a central position.

In the use process, the patient places the foot in the inside that bears box 41, and the dynamics of exerting when the patient foot can drive and bear box 41 and remove, when the reciprocal dynamics of exerting of foot drives and bears box 41 reciprocating motion, has the effect of taking exercise, and wherein, first constraint area 42 can restrain the instep intermediate position of patient, and second constraint area 43 can restrain the front end position department of patient's instep, that is, first constraint area 42 and second constraint area 43 cooperate jointly and restrain the instep of patient, avoid the unexpected foot to break away from and bear box 41, ensure can be safe, smooth exercise operation.

As shown in fig. 9, support piece 2 is hydraulic telescoping rod, still include control module, a weighing sensor and a temperature sensor, humidity transducer, infrared detector 22 and voice broadcast module 23, infrared detector 22 sets up on seat 21's inboard, it is concrete, infrared detector 22 installs on seat 21's curb plate is inboard, a weighing sensor and a humidity transducer, voice broadcast module 23 all sets up on seat 21's bottom surface, a weighing sensor and a humidity transducer, infrared detector 22, voice broadcast module 23 all and control module between electric connection, control module still electric connection has timing module.

In the in-process that uses, the patient can control hydraulic telescoping rod extension or shorten through control module, thereby change seat 21's high position, with adaptation patient's height, when the patient sits on seat 21, infrared detector 22 can detect the patient, at this moment, humidity transducer detects the humidity of surrounding environment, temperature sensor detects the temperature of surrounding environment, then control module reports the temperature and the humidity that detect through voice broadcast module 23, make the understanding surrounding environment situation that the patient can be timely, furthermore, when the patient just sat down, start timing module, when the patient leaves seat 21, report patient's exercise time through voice broadcast module 23, let the patient can know the exercise condition of oneself, accomplish to have the number in the heart.

The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.

Claims

1. The utility model provides a device is tempered to low limbs for recovered orthopedics, includes base (1) and support piece (2), base (1) horizontal distribution, support piece (2) vertical setting is served on the top surface one of base (1), the top of support piece (2) is equipped with seat (21), its characterized in that: still the activity is equipped with two exercise mechanism on the top surface of base (1), two exercise mechanism is about the axis symmetric distribution of support piece (2), and during the use, patient's both feet are placed respectively on two exercise mechanism and can be along exercise mechanism's track reciprocating sliding.

2. The lower limb exercise device for orthopedic rehabilitation according to claim 1, characterized in that: exercise mechanism and base (1) between rotate and be connected, exercise mechanism includes first slide rail (3), foot and bears mechanism (4) and second slide rail (6), the inner of first slide rail (3) and the lateral wall fixed connection of second slide rail (6), first slide rail (3) and second slide rail (6) communicate each other, foot bears mechanism (4) and slides and set up on first slide rail (3) or second slide rail (6), foot bears mechanism (4) and can freely switch between first slide rail (3), second slide rail (6).

3. The lower limb exercise device for orthopedic rehabilitation according to claim 2, characterized in that: the trajectory line of the first sliding rail (3) is an arc line, the central angle corresponding to the arc line is alpha, alpha is more than or equal to 30 degrees and less than or equal to 90 degrees, the trajectory line of the second sliding rail (6) is a straight line, the circle center of the arc line is positioned at the inner end of the second sliding rail (6), and the first sliding rail (3) and the second sliding rail (6) are in fillet transition.

4. The lower limb exercise device for orthopedic rehabilitation according to claim 3, characterized in that: the bottom surface of first slide rail (3), second slide rail (6) hookup location department is equipped with disc (5), the bottom surface of disc (5) and the top surface of base (1) are parallel to each other, the underrun of disc (5) rotates through pivot and base (1) to be connected, and the axis of pivot and the axis coincidence of disc (5), the one end bottom surface that disc (5) were kept away from in first slide rail (3), second slide rail (6) all is equipped with ball (31), ball (31) can roll on the top surface of base (1), be equipped with locating component between disc (5) and base (1).

5. The lower limb exercise device for orthopedic rehabilitation according to claim 2, characterized in that: the bottom surface that foot bore weight of mechanism (4) is equipped with slider (7), slider (7) slide to set up in the spout of first slide rail (3) or second slide rail (6), be equipped with damping mechanism between one end that second slide rail (6) are close to support piece (2) and slider (7), be equipped with adjustment mechanism between damping mechanism and second slide rail (6), adjustment mechanism is used for adjusting the damping dynamics between damping mechanism and slider (7).

6. The lower limb exercise device for orthopedic rehabilitation according to claim 5, characterized in that: damping mechanism includes two resistance pieces (81), an elastic component (82) and two resistance boards (83), logical groove has been seted up to the inside of slider (7), two resistance piece (81) are located the inside both ends that lead to the groove respectively, elastic component (82) set up between two resistance pieces (81), resistance board (83) rotate the setting in the spout of second slide rail (6), two resistance boards (83) are located the both sides of slider (7) respectively.

7. The lower limb exercise device for orthopedic rehabilitation according to claim 6, characterized in that: adjustment mechanism includes two nuts (91), threaded rod (92), locating piece (93), location plug-in components (94) and positioning hole (95), two nut (91) rotates respectively and connects on the tip of resistance board (83), two locating piece (93) slides respectively and sets up the inside both sides of spout in second slide rail (6), threaded rod (92) pass through the bearing setting between two locating pieces (93), two nut (91) threaded connection respectively is on the both ends of threaded rod (92), the screw thread on the both ends of threaded rod (92) revolves to opposite, positioning hole (95) are seted up on the lateral wall of second slide rail (6), location plug-in components (94) are inserted and are established between positioning hole (95) and locating piece (93).

8. The lower limb exercise device for orthopedic rehabilitation according to claim 6, characterized in that: the inboard of resistance board (83) is equipped with the rubber pad that is used for increasing frictional resistance between resistance board (83), resistance piece (81), the fillet transition is adopted to the outer end of resistance piece (81), elastic component (82) are rectangle coil spring.

9. The lower limb exercise device for orthopedic rehabilitation according to claim 5, characterized in that: the foot bearing mechanism (4) comprises a bearing box (41), a first binding belt (42) and a second binding belt (43), the bearing box (41) is arranged on the top surface of the sliding block (7), the first binding belt (42) is arranged between two sides of the bearing box (41), the second binding belt (43) is arranged between the first binding belt (42) and the front side of the bearing box (41), and the first binding belt (42) is fixedly connected with the inner end of the second binding belt (43) at the central position.

10. The lower extremity exercise apparatus of claims 1 and 9, wherein: support piece (2) are hydraulic telescoping rod, still include control module, temperature sensor, humidity transducer, infrared detector (22) and voice broadcast module (23), infrared detector (22) set up on the inboard of seat (21), temperature sensor, humidity transducer, voice broadcast module (23) all set up on the bottom surface of seat (21), electric connection between temperature sensor, humidity transducer, infrared detector (22), voice broadcast module (23) all and the control module, control module still electric connection has timing module.