CN212326879U - Device is tempered with shank to patient's of orthopedics rehabilitation - Google Patents

Abstract

The utility model provides a leg exercising device for rehabilitation of orthopedic patients, which comprises a seat, wherein an angle adjusting component for adjusting the angles of a seat board and a seat back is arranged at the rear side of the seat board and the seat back; the moving component is fixedly arranged at the lower end of the box body; a leg exercise assembly; the leg exercise driving assembly comprises a first gear and a second gear which are respectively arranged at one end of the second rotating shaft and one end of the third rotating shaft close to the outer wall of the box body in a penetrating manner, the first gear and the second gear are respectively meshed and connected with a first rack and a second rack, and the opposite ends of the first rack and the second rack are respectively provided with teeth; the front inner side wall of the box body is connected with a third gear and a fourth gear through a fourth rotating shaft and a fifth rotating shaft respectively, and the third gear and the fourth gear are meshed with teeth respectively; the outside of the fourth gear is provided with a driving belt pulley, the outside of the third gear is provided with a driven belt pulley, and one side of the driving belt pulley, which is far away from the front wall of the box body, is connected with a first motor. The utility model has convenient movement and high safety; the exercise mode is various, increases exercise interest and persistence.

Description

Device is tempered with shank to patient's of orthopedics rehabilitation

Technical Field

The utility model relates to a medical treatment rehabilitation apparatus technical field, concretely relates to device is tempered to recovered shank of orthopedics patient.

Background

At present, patients with injured legs or patients who undergo leg operations can not move autonomously mostly, and long-time non-movement can cause muscle atrophy, so that the patients can not move normally, even the patients can not take care of themselves, and therefore, the leg rehabilitation becomes especially critical to the exercise rehabilitation of the legs of the patients.

When an orthopedic patient takes exercise, special leg rehabilitation exercise equipment is needed for taking exercise. Most of existing leg exercise equipment for rehabilitation of orthopedic patients is placed in a special rehabilitation exercise room, and for patients with inconvenient actions, the patients cannot insist for a long time because the patients go to the rehabilitation exercise room with assistance of medical care personnel or family members, so that the workload of the medical care personnel and the family members is increased; some current leg exercise devices function singleness, can only sit and carry out the motion of bending the knee of both legs, can not lie prostrate to take exercise or both legs are taken exercise in turn, do not reach the purpose that patient's shank was taken exercise fully, and the effect is not good.

In view of the foregoing, there is a need to design a leg exercise device for rehabilitation of orthopedic patients that overcomes the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a leg exercise device for rehabilitation of orthopedic patients, which overcomes the problems.

In order to realize the purpose, the utility model discloses a technical scheme is: a leg exercise device for rehabilitation of orthopedic patients, comprising:

the chair comprises a seat plate, a chair back which is rotationally connected with the seat plate through a first rotating shaft and a box body which is arranged at the lower end of the seat plate, wherein angle regulating and controlling components for regulating the angles of the seat plate and the chair back are arranged at the rear sides of the seat plate and the chair back;

the moving assembly is fixedly arranged at the lower end of the box body;

the leg exercising assembly comprises a left leg bracket and a right leg bracket which are respectively and rotatably arranged at the front end of the seat plate through a second rotating shaft and a third rotating shaft and are positioned between the left side wall and the right side wall of the box body;

the leg exercise driving assembly is arranged inside the box body and comprises a first gear and a second gear which are respectively arranged at one end, close to the outer wall of the box body, of the second rotating shaft and one end, close to the outer wall of the box body, of the third rotating shaft in a penetrating mode, the first gear and the second gear are respectively meshed and connected with a first rack and a second rack, and opposite ends of the first rack and the second rack are respectively provided with teeth; a third gear and a fourth gear are connected to the front inner side wall of the box body through a fourth rotating shaft and a fifth rotating shaft respectively, and the third gear and the fourth gear are meshed with teeth on the first rack and the second rack respectively; a driving belt pulley is arranged on the outer side of the fourth gear, a driven belt pulley is arranged on the outer side of the third gear, and the driving belt pulley is in transmission connection with the driven belt pulley through a belt; one side of the driving belt pulley, which is far away from the front wall of the box body, is connected with a first motor;

the lower ends of the first rack and the second rack are respectively provided with a driving switching component for switching active exercise and passive exercise;

the first and second racks may rotate the first and second gears 0-90 degrees, respectively.

The purpose of the utility model and the technical problem thereof can be further realized by adopting the following technical measures.

Furthermore, the driving switching assembly comprises a screw rod arranged at the lower end of the box body through a support, a screw rod nut arranged on the screw rod in a sliding manner, a sliding rail vertically arranged at the upper end of the screw rod nut and a sliding block arranged on the sliding rail in a sliding manner, and one end of the sliding block is fixedly connected with the lower ends of the first rack and the second rack respectively;

two ends of the lead screw are connected between the two supports through second bearings respectively, and one end of the lead screw is connected with a second motor.

Furthermore, the angle regulation and control assembly comprises support rods arranged at two ends of the rear side of the box body and a third rack which is positioned in the box body and one end of which is arranged in the support rods in a penetrating manner, fifth gears are respectively arranged at two ends of the first rotating shaft in a penetrating manner, and the fifth gears are meshed with the third rack;

the other end of third rack is equipped with the arc bayonet socket of taking the internal tooth, first rack with the rear end of second rack is equipped with the extension rod, the tip of extension rod be equipped with the arc projection that the arc bayonet socket matches, be equipped with on the arc projection outer wall with the internal tooth intermeshing's of arc bayonet socket external tooth.

Furthermore, a cavity is formed in the supporting rod, a leather cup is arranged at the end part of the third rack, and the leather cup can slide back and forth along the cavity under the driving of the third rack;

the upper surface of one end of the support rod, which is far away from the box body, is provided with an elastic supporting piece, and the other end of the elastic supporting piece is fixedly connected to the back side of the chair;

the elastic supporting piece is a telescopic air bag which is communicated with the cavity in a sealing way.

Furthermore, an inflatable waist cushion is arranged on one surface of the chair back, which is in contact with a human body, and the inflatable waist cushion is communicated with the inside of the telescopic air bag.

The seat board is characterized by further comprising handrails arranged on two sides of the seat board, square through holes penetrating up and down are formed in the handrails, and elastic cloth covers the upper ends of the square through holes;

the upper end of the box body is provided with a through hole corresponding to the square through hole, and the first rack and the second rack can penetrate through the square through hole to move up and down or back and forth.

Furthermore, the upper ends of the first rack and the second rack are both provided with grooves, the bottoms of the grooves are connected with springs, and the upper ends of the springs are provided with hemispherical massage heads.

Furthermore, foot supports are respectively arranged at the end parts of the left leg bracket and the right leg bracket, binding bands are arranged on one sides of the left leg bracket and the right leg bracket, Chinese character 'ri' buckles are arranged on the left leg bracket and the right leg bracket at the opposite ends of the binding bands, and the binding bands can penetrate through the Chinese character 'ri' buckles to be bonded automatically.

Further, the foot support is connected with the left leg bracket and the right leg bracket through universal joints respectively.

Furthermore, the moving assembly comprises a base, universal wheels arranged at four feet at the bottom of the base and a hydraulic telescopic rod arranged between the base and the box body;

one side of the hydraulic telescopic rod is provided with a pedal control plate.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a device is tempered to recovered shank of orthopedic patient, it is through setting up the removal subassembly in the bottom, makes things convenient for the patient to take exercise at any time in the ward or open air, has increased the persistence that the patient took exercise, has also alleviateed patient's family members or medical personnel's work load.

2. The utility model discloses a shank exercise device is used in orthopedics patient's rehabilitation, it is provided with left leg bracket and right leg bracket respectively, and realizes two shank through shank exercise drive assembly and take exercise in turn, and the flexibility ratio is high, accords with people's motion custom, makes the patient feel more comfortable in the exercise process, has strengthened the exercise effect to a certain extent; specifically, the two gears are driven to rotate in the same direction through the double belt pulleys respectively, the two gears drive the racks meshed with the gears to alternately move up and down respectively, namely one of the two racks moves up or down, and the other rack moves in the opposite direction; and another lateral wall of two racks also is equipped with the tooth, this tooth also meshes respectively and is connected with the gear, these two gears are installed respectively just on the axle end of installing left leg bracket and right leg bracket, two gears are respectively under the drive of two racks, do opposite direction's rotary motion, consequently, drive left leg bracket and right leg bracket and use its place axle to do opposite direction's rotary motion as the center respectively, thereby make patient's shank can do alternate exercise, reach the purpose of recovered exercise, stable in structure, and the security is high.

3. The utility model discloses a leg exercising device for rehabilitation of orthopedic patients, the chair back of which is connected with the seat plate through a first rotating shaft, so that the angle can be adjusted; in order to limit the angles of the first rotating shaft and the second rotating shaft, an angle regulation and control component is arranged on the rear sides of the first rotating shaft and the second rotating shaft, specifically, the angle regulation and control component comprises support rods arranged at two ends of the rear side of the box body and a third rack which is positioned in the box body and one end of which is arranged in the support rods in a penetrating manner, fifth gears are respectively arranged at two ends of the first rotating shaft in a penetrating manner, and the fifth gears are meshed with the third racks; in order to drive the fifth gear to rotate through the third rack, the arc bayonet of the third rack is mutually clamped with the arc convex column on the extension rod at the rear end of the first rack and the arc convex column on the extension rod at the rear end of the second rack, so that the first rack and the second rack can move back and forth by driving the switching component to drive the third rack to move back and forth, the fifth gear is further rotated to drive the chair back to rotate, the angle is adjusted, the whole structure is skillfully connected, the motor drive is not needed to be singly arranged, multiple functions are realized, and resources are saved.

4. The utility model discloses a device is tempered to recovered shank of orthopedic patient, it can put the back of the chair flat through angle regulation and control subassembly, make the patient can take prostrate and take exercise, when taking prostrate, can hold in the palm the outside 180 degrees of rotation of foot with the universal joint between the leg support through the foot, and simultaneously, temper the rack in the drive assembly with the shank through drive switching module and put aside backward, rotatory left leg bracket and right leg bracket make the two put flatly, then recycle drive switching module temper drive assembly with the shank rack move forward to rack and gear complete meshing can, it just can take prostrate and carry out shank flexion and extension exercise with the patient next, the exercise mode is adjustable, the interest of recovered exercise has been increased, make the patient take exercise more lastingly, increase and take exercise effect.

Drawings

Fig. 1 is a schematic structural diagram of the whole leg exercise device for rehabilitation of orthopedic patients provided by the present invention;

FIG. 2 is a schematic side sectional view of the case according to the embodiment of the present invention;

FIG. 3 is a rear cut-away view of the case in the embodiment of the present invention;

fig. 4 is a top view of the leg exercise device for rehabilitation of orthopedic patients provided by the present invention;

FIG. 5 is an enlarged schematic view at A in FIG. 2;

fig. 6 is a top view of the embodiment of the present invention when the arc bayonet is engaged with the arc convex pillar;

description of reference numerals:

1. a seat; 11. a seat plate; 12. a chair back; 121. an inflatable waist pad; 13. a box body; 131. an observation window; 14. a first rotating shaft; 15. a handrail; 151. a square through hole; 152. elastic cloth; 16. a first bearing;

2. an angle adjustment component; 21. a support bar; 211. a cavity; 22. a third rack; 221. a leather cup; 23. a fifth gear; 24. an arc bayonet; 25. an extension rod; 26. an arc-shaped convex column; 27. an elastic support member;

3. a moving assembly; 31. a base; 32. a universal wheel; 33. a hydraulic telescopic rod; 34. a foot control panel;

4. a leg exercise assembly; 41. a left leg bracket; 411. binding bands; 412. a Chinese character 'ri' button; 42. a right leg bracket; 43. a second rotating shaft; 44. a third rotating shaft; 45. a foot support; 46. a universal joint;

5. a leg exercise drive assembly; 51. a first gear; 52. a second gear; 53. a first rack; 531. teeth; 532. a groove; 533. a spring; 534. a hemispherical massage head; 54. a second rack; 55. a fourth rotating shaft; 56. a fifth rotating shaft; 57. a third gear; 58. a fourth gear; 59. a drive pulley; 510. a driven pulley; 511. a belt; 512. a first motor; 513. a third bearing;

6. driving the switching assembly; 61. a support; 62. a lead screw; 63. a lead screw nut; 64. a slide rail; 65. a slider; 66. a second bearing; 67. a second motor.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-6, a leg exercise device for rehabilitation of an orthopedic patient comprises:

the chair comprises a chair 1 and a chair back 1, wherein the chair back 1 comprises a chair plate 11, a chair back 12 and a box body 13, the chair back 12 is rotatably connected with the chair plate 11 through a first rotating shaft 14, the box body 13 is arranged at the lower end of the chair plate 11, an angle adjusting and controlling component 2 for adjusting the angles of the chair back 11 and the chair back 12 is arranged at the rear sides of the chair plate 11 and the chair back 12, and the angle adjusting and controlling component 2 can adjust the angles of the chair back 12 and the chair plate 11, so that a patient feels more comfortable during exercise, and can also take different postures;

the moving component 3 is fixedly arranged at the lower end of the box body 13, is convenient to move, enables a patient to exercise at any time and any place, reduces the workload of family members or medical care personnel, and increases the exercise durability of the patient;

a leg exercising assembly 4 including a left leg bracket 41 and a right leg bracket 42 rotatably installed at the front end of the seat plate 11 through a second rotating shaft 43 and a third rotating shaft 44, respectively, and located between the left and right sidewalls of the box body 13, wherein a connecting seat is welded to the upper end of the front sidewall of the box body 13, opposite ends of the second rotating shaft 43 and the third rotating shaft 44 are rotatably connected to the connecting seat through a first bearing 16, and the other ends of the two are connected to the left and right sidewalls of the box body 13 through a first bearing 16;

a leg exercise driving assembly 5, which is arranged inside the box body 13 and comprises a first gear 51 and a second gear 52 respectively passing through one end of the second rotating shaft 43 and the third rotating shaft 44 close to the outer wall of the box body 13, wherein the first gear 51 and the second gear 52 are respectively engaged with a first rack 53 and a second rack 54, and the opposite ends of the first rack 53 and the second rack 54 are respectively provided with teeth 531; a third gear 57 and a fourth gear 58 are respectively connected to the front inner side wall of the box body 13 through a fourth rotating shaft 55 and a fifth rotating shaft 56, and the third gear 57 and the fourth gear 58 are respectively meshed with the teeth 531 on the first rack 53 and the second rack 54; a driving pulley 59 is arranged on the outer side of the fourth gear 58, a driven pulley 510 is arranged on the outer side of the third gear 57, and the driving pulley 59 is in transmission connection with the driven pulley 510 through a belt 511; a first motor 512 is connected to one side of the driving pulley 59 far away from the front wall of the box 13;

the lower ends of the first rack 53 and the second rack 54 are respectively provided with a driving switching component 6 for switching active exercise and passive exercise; the drive switching assembly 6 can enable the first rack 53 and the second rack 54 to be disengaged from the first gear 51 and the second gear 52 respectively, so that the motor drive is changed into the autonomous exercise of the patient, the switching between the active exercise and the passive exercise is realized, and the requirements of the patients in different rehabilitation periods are met.

The first and second racks 53 and 54 can rotate the first and second gears 51 and 52 by 0 ° to 90 °, respectively.

In this embodiment, the first motor 512 drives the driving pulley 59 to rotate forward and backward alternately, when rotating forward, the driving pulley 59 drives the driven pulley 510 to rotate clockwise through the belt 511, the driving pulley 59 and the driven pulley 510 drive the fourth gear 58 and the third gear 57 to rotate clockwise through the fifth rotating shaft 56 and the fourth rotating shaft 55, respectively, the third gear 57 drives the first rack 53 to move upward through meshing with the teeth 531, the teeth on the front side surface of the first rack 53 are meshed with the first gear 51, when the first rack 53 moves upward, the first gear 51 rotates counterclockwise, so that the force is transmitted to the left leg bracket 41 through the second rotating shaft 43, and the left leg bracket 41 rotates downward along the second rotating shaft 43; meanwhile, the fourth gear 58 drives the second rack 54 to move downwards, when the second rack 54 moves downwards, the second gear 52 rotates clockwise (opposite to the rotation direction of the first gear 51), so that the force is transmitted to the right leg bracket 42 through the third rotating shaft 44, and the right leg bracket 42 rotates upwards along the third rotating shaft 44, therefore, two shanks of a patient can do alternate knee bending and leg stretching motions simultaneously, which accords with the behavior habits of human bodies, has high comfort level and better exercise effect. When the first motor 512 drives the driving pulley 59 to rotate reversely, the principle is the same as that of the forward rotation, and the description is omitted. It should be noted that, when the patient needs to do the passive prone exercise, firstly, the chair back 12 is horizontally placed through the angle adjusting and controlling component 2, then when the left leg bracket 41 or the right leg bracket 42 vertically returns to the original position, the first motor 512 is turned off, the active exercise is changed into the passive exercise by the driving switching component 6, then the vertical left leg bracket 41 or the vertical right leg bracket 42 is rotated and laid flat, and then the active exercise is changed into the passive exercise, so that the patient can do the single-leg exercise while lying prone.

Preferably, the driving switching assembly 6 includes a lead screw 62 disposed at the lower end of the box 13 through a support 61, a lead screw nut 63 slidably disposed on the lead screw 62, a slide rail 64 vertically disposed at the upper end of the lead screw nut 63, and a slide block 65 slidably disposed on the slide rail 64, and one end of the slide block 65 is fixedly connected to the lower ends of the first rack 53 and the second rack 54, respectively;

two ends of the lead screw 62 are respectively connected between the two supports 61 through second bearings 66, and one end of the lead screw 62 is connected with a second motor 67.

In this embodiment, the second motor 67 drives the lead screw 62 to alternatively forward or reversely rotate, the lead screw 62 drives the lead screw nut 63 to slide back and forth along the lead screw 62, the lead screw 62 drives the slide rail 64 to move back and forth, the slide rail 64 drives the first rack 53 and the second rack 54 to move back and forth through the slider 65, so that the first rack 53 and the second rack 54 are respectively disengaged from the first gear 51 and the second gear 52, the autonomous exercise of the patient is realized, the patient can sit or lie for exercise, the two legs can alternatively be exercised or the two legs can be exercised simultaneously, the use ratio is flexible and convenient, and the use ratio is high.

Preferably, the angle adjusting and controlling assembly 2 includes support rods 21 disposed at two ends of the rear side of the box 13 and a third rack 22 located in the box 13 and having one end penetrating through the support rods 21, two ends of the first rotating shaft 14 are respectively penetrated with a fifth gear 23, the fifth gear 23 and the third rack 22 are engaged with each other, and the support rods 21 are welded at the upper end of the rear side wall of the box 13;

the other end of third rack 22 is equipped with the arc bayonet socket 24 of taking the internal tooth, first rack 53 with the rear end of second rack 54 is equipped with extension rod 25, extension rod 25's tip be equipped with the arc bayonet socket 24 the arc projection 26 that matches, be equipped with on the 26 outer wall of arc projection with the external tooth of the internal tooth intermeshing of arc bayonet socket 24, be equipped with transparent observation window 131 on the lateral wall about box 13, conveniently observe the position of adjustment arc bayonet socket 24 and arc projection 26.

In this embodiment, when the angle of the seat back 12 needs to be adjusted, the positions of the arc-shaped bayonet 24 and the arc-shaped convex column 26 are checked through the observation window 131, the front and back positions of the first rack 53 and the second rack 54 can be adjusted by driving of the second motor 67, the up and down positions of the first rack 53 and the second rack 54 are adjusted by the first motor 512, when the arc-shaped convex column 26 at the tail end of the first rack 53 or the second rack 54 is just located at the upper end of the arc-shaped bayonet 24, the first motor 512 is started to enable the first rack 53 or the second rack 54 to move downward, when the first rack 53 and the second rack 54 are engaged, the first motor 512 is turned off, and then the second motor 67 is started to enable the first rack 53 or the second rack 54 to move forward or backward, so that the third rack 22 is driven to move forward and backward, the fifth gear 23 drives the seat back 12 to rotate, and after the angle is adjusted properly, the. When the arc-shaped bayonet 24 is disengaged from the arc-shaped convex column 26, the operation method is opposite, and the description is omitted.

Preferably, a cavity 211 is formed inside the support rod 21, a leather cup 221 is arranged at an end of the third rack 22, and the leather cup 221 can slide back and forth along the cavity 211 under the driving of the third rack 22;

the upper surface of one end of the support rod 21 far away from the box body 13 is provided with an elastic support member 27, and the other end of the elastic support member 27 is fixedly connected to the rear side of the chair back 12;

the elastic supporting member 27 is a telescopic air bag, and the telescopic air bag is hermetically communicated with the cavity 211.

In this embodiment, when the third rack 22 is driven by the first rack 53 or the second rack 54 to move back and forth, the leather cup 221 slides back and forth along the cavity 211, and the side wall of the support rod 21 is provided with a one-way valve for allowing air to enter, so that air is pumped back and forth and continuously inflates the telescopic airbag, when a person sits, the air in the elastic support 27 is at most, which can play a role of buffering the pressure of the back, and when the person lies, the air holes in the side wall of the elastic support 27 can be opened, so that the internal air is exhausted.

Preferably, an inflatable waist pad 121 is disposed on one side of the seat back 12 contacting with the human body, the inflatable waist pad 121 is communicated with the inside of the stretchable airbag, when a person sits, the gas in the elastic support member 27 flows into the inflatable waist pad 121, so that the pressure of the waist can be relieved, and the function of supporting the waist is achieved.

Preferably, the chair further comprises handrails 15 arranged at two sides of the seat plate 11, square through holes 151 penetrating up and down are formed in the handrails 15, and elastic cloth 152 covers the upper ends of the square through holes 151;

the upper end of the box body 13 is provided with a through hole corresponding to the square through hole 151, and both the first rack 53 and the second rack 54 can pass through the square through hole 151 to move up and down or back and forth.

In this embodiment, the first rack 53 and the second rack 54 move up and down continuously, and the hands of the person are placed on the racks, so as to play a role of massage and increase blood circulation; when the first rack 53 and the second rack 54 move back and forth, the arm can be placed on the armrest 15, so that the muscle of the patient is relaxed and massaged.

Preferably, the upper ends of the first rack 53 and the second rack 54 are both provided with a groove 532, the bottom of the groove 532 is connected with a spring 533, the upper end of the spring 533 is provided with a hemispherical massage head 534, the spring 533 plays a role in shock absorption, and the hemispherical massage head 534 enables the body of a patient to feel more comfortable.

Preferably, the end portions of the left leg bracket 41 and the right leg bracket 42 are respectively provided with foot rests 45, one side of each of the left leg bracket 41 and the right leg bracket 42 is provided with a binding belt 411, the left leg bracket 41 and the right leg bracket 42 at the opposite ends of the binding belt 411 are provided with a Chinese character 'ri' button 412, and the binding belt 411 can be self-adhered through the Chinese character 'ri' button 412.

Preferably, the foot rests 45 are connected to the left leg bracket 41 and the right leg bracket 42 by universal joints 46, respectively. When the patient does leg exercise, the ankle exercise can be simultaneously performed; when a patient lies prone (i.e. lies prone) for exercise, the foot support 45 can be turned over downwards by 160-180 degrees, so that the foot of the patient naturally droops, the foot support accords with human engineering, and the foot support is more comfortable during exercise.

Preferably, the moving assembly 3 comprises a base 31, four universal wheels 32 arranged at the bottom of the base 31, and a hydraulic telescopic rod 33 arranged between the base 31 and the box body 13; the universal wheels 32 facilitate the movement of the whole device, so that the patient can be rehabilitated and trained anytime and anywhere, and the durability is improved.

One side of hydraulic telescoping rod 33 is equipped with pedal control board 34, can adjust hydraulic telescoping rod 33's height through pedal control board 34 to ensure that the high demand that satisfies different patients of whole device, correspondingly, telescopic also can be made to left leg bracket 41 and right leg bracket 42, conveniently adjust according to patient's shank length, improve whole device rate of utilization.

The present invention has been further described with reference to the embodiments, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (10)

1. The utility model provides a device is tempered with shank to orthopedic patient's rehabilitation which characterized in that, it includes:

the chair comprises a seat plate (1), a chair back (12) and a box body (13), wherein the chair back (12) is rotatably connected with the seat plate (11) through a first rotating shaft (14), the box body (13) is arranged at the lower end of the seat plate (11), and an angle regulating and controlling assembly (2) for regulating the angles of the seat plate (11) and the chair back (12) is arranged at the rear sides of the seat plate (11) and the chair back (12);

the moving component (3) is fixedly arranged at the lower end of the box body (13);

the leg exercising assembly (4) comprises a left leg bracket (41) and a right leg bracket (42) which are respectively and rotatably arranged at the front end of the seat plate (11) through a second rotating shaft (43) and a third rotating shaft (44) and are positioned between the left side wall and the right side wall of the box body (13);

the leg exercising driving component (5) is arranged inside the box body (13) and comprises a first gear (51) and a second gear (52) which are respectively arranged on the second rotating shaft (43) and the third rotating shaft (44) in a penetrating way and close to one end of the outer wall of the box body (13), the first gear (51) and the second gear (52) are respectively meshed and connected with a first rack (53) and a second rack (54), and the opposite ends of the first rack (53) and the second rack (54) are respectively provided with teeth (531); a third gear (57) and a fourth gear (58) are connected to the front inner side wall of the box body (13) through a fourth rotating shaft (55) and a fifth rotating shaft (56), and the third gear (57) and the fourth gear (58) are meshed with teeth (531) on the first rack (53) and the second rack (54) respectively; a driving pulley (59) is arranged on the outer side of the fourth gear (58), a driven pulley (510) is arranged on the outer side of the third gear (57), and the driving pulley (59) is in transmission connection with the driven pulley (510) through a belt (511); one side of the driving belt pulley (59) far away from the front wall of the box body (13) is connected with a first motor (512);

the lower ends of the first rack (53) and the second rack (54) are respectively provided with a driving switching component (6) for switching active exercise and passive exercise;

said first rack (53) and said second rack (54) being able to rotate said first gear (51) and said second gear (52) by 0 ° -90 °, respectively.

2. The leg exercise device for orthopedic patient rehabilitation according to claim 1, wherein:

the driving switching assembly (6) comprises a lead screw (62) arranged at the lower end of the box body (13) through a support (61), a lead screw nut (63) arranged on the lead screw (62) in a sliding manner, a sliding rail (64) vertically arranged at the upper end of the lead screw nut (63) and a sliding block (65) arranged on the sliding rail (64) in a sliding manner, and one end of the sliding block (65) is fixedly connected with the lower ends of the first rack (53) and the second rack (54) respectively;

two ends of the lead screw (62) are respectively connected between the two supports (61) through second bearings (66), and one end of the lead screw (62) is connected with a second motor (67).

3. The leg exercise device for orthopedic patient rehabilitation according to claim 1, wherein:

the angle regulation and control assembly (2) comprises supporting rods (21) arranged at two ends of the rear side of the box body (13) and a third rack (22) which is positioned in the box body (13) and one end of which penetrates through the supporting rods (21), fifth gears (23) are respectively arranged at two ends of the first rotating shaft (14) in a penetrating manner, and the fifth gears (23) are meshed with the third rack (22);

the other end of third rack (22) is equipped with arc bayonet socket (24) of taking the internal tooth, first rack (53) with the rear end of second rack (54) is equipped with extension rod (25), the tip of extension rod (25) be equipped with arc projection (26) that arc bayonet socket (24) match, be equipped with on arc projection (26) outer wall with the external tooth of the internal tooth intermeshing of arc bayonet socket (24).

4. The leg exercise device for orthopedic patient rehabilitation according to claim 3, wherein:

a cavity (211) is formed in the supporting rod (21), a leather cup (221) is arranged at the end part of the third rack (22), and the leather cup (221) can slide back and forth along the cavity (211) under the driving of the third rack (22);

an elastic supporting piece (27) is arranged on the upper surface of one end, away from the box body (13), of the supporting rod (21), and the other end of the elastic supporting piece (27) is fixedly connected to the rear side of the chair back (12);

the elastic supporting piece (27) is a telescopic air bag which is communicated with the cavity (211) in a sealing way.

5. The leg exercising device for rehabilitation of orthopedic patients as claimed in claim 4, wherein an inflatable lumbar pad (121) is provided on the surface of the chair back (12) contacting with human body, the inflatable lumbar pad (121) communicating with the inside of the stretchable air bag.

6. The leg exercise device for orthopedic patient rehabilitation according to claim 1, wherein:

the chair is characterized by further comprising handrails (15) arranged on two sides of the seat board (11), square through holes (151) penetrating up and down are formed in the handrails (15), and elastic cloth (152) covers the upper ends of the square through holes (151);

the upper end of the box body (13) is provided with a through hole corresponding to the square through hole (151), and the first rack (53) and the second rack (54) can penetrate through the square through hole (151) to move up and down or back and forth.

7. The leg exercising device for rehabilitation of orthopedic patients as claimed in claim 6, wherein the upper ends of the first rack (53) and the second rack (54) are both provided with a groove (532), the bottom of the groove (532) is connected with a spring (533), and the upper end of the spring (533) is provided with a hemispherical massage head (534).

8. The leg exercising device for rehabilitation of orthopedic patients according to claim 1, characterized in that the ends of the left leg bracket (41) and the right leg bracket (42) are respectively provided with a foot rest (45), one side of each of the left leg bracket (41) and the right leg bracket (42) is provided with a binding band (411), the left leg bracket (41) and the right leg bracket (42) at the opposite ends of the binding band (411) are provided with a Chinese character 'ri' button (412), and the binding band (411) can be self-bonded through the Chinese character 'ri' button (412).

9. An orthopaedic patient rehabilitation leg exercise device according to claim 8, wherein said foot rests (45) are connected to said left leg bracket (41) and said right leg bracket (42) by universal joints (46), respectively.

10. The leg exercise device for orthopedic patient rehabilitation according to claim 1, wherein:

the moving assembly (3) comprises a base (31), universal wheels (32) arranged on four feet at the bottom of the base (31) and a hydraulic telescopic rod (33) arranged between the base (31) and the box body (13);

one side of the hydraulic telescopic rod (33) is provided with a pedal control plate (34).

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