Postoperative leg exercise device with adjustment function

Abstract

The present invention relates to the technical field of rehabilitation exercise equipment, and specifically discloses a postoperative leg exercise device with an adjustment function, including a bed body, the bed body is rotatably provided with two first rotating shafts, the first rotating shaft is provided with a first rotating plate, the first rotating plate is rotatably provided with a second rotating plate, a torsion spring is installed between the second rotating plate and the adjacent first rotating plate, the first rotating plate is limitedly rotatably provided with a first fixed shell, the bed body is provided with an arc groove, a rotating frame is limitedly slidably provided in the arc groove of the bed body, the rotating frame is fixedly connected to the two first fixed shells, the side wall of the bed body is fixedly connected with a first electric push rod, and the telescopic end of the first electric push rod is fixedly connected with a limit frame that slides with the rotating frame. The present invention controls the bending frequency and bending amplitude of the patient's legs through the operation of the first electric push rod, improves the diversity of the exercise of the device, and accelerates the rehabilitation of the patient's legs.

Description

Technical Field

[0001] The invention relates to the technical field of rehabilitation exercise equipment, and in particular to a postoperative leg exercise device with an adjustment function. Background Art

[0002] When performing rehabilitation exercises for patients with leg injuries, medical staff often manually bend the patient's legs to exercise the patient's legs. However, when performing bending exercises on different patients' legs in this process, due to the different injuries of different patients' legs, different patients' legs need to be bent to different degrees. In the process of bending the patient's legs, the medical staff are affected by the size of the force they apply, and the medical staff are likely to cause the patient's legs to be bent to a larger degree, causing the patient's legs to have a strong sense of stimulation, which is not conducive to the recovery exercise of the patient's legs in the long run. At the same time, the stiffness of different patients' legs is also different. It is not easy for medical staff to control the patient's legs to bend at a uniform speed. Excessive force is likely to cause the patient to bend too fast, causing the patient to have a strong stress response, which is not conducive to long-term rehabilitation training. If the existing rehabilitation exercise device is used for leg exercise, the exercise method is mostly to drive the patient's legs to perform bending exercises with electrical components. The function of the device is relatively single. After the patient's legs recover some autonomous bending ability in the later stage, the exercise effect on the patient becomes worse, and it cannot provide effective assistance for patients in different recovery stages, resulting in deviation in the exercise effect. Summary of the invention

[0003] In order to overcome the above-mentioned technical problems, the present invention provides a postoperative leg exercise device with an adjustment function.

[0004] The technical solution is: a postoperative leg exercise device with an adjustment function, comprising a bed body, two symmetrical straps and two symmetrical shells are installed on the bed body, one of the shells is fixedly connected to a control panel, the bed body is rotatably provided with two symmetrical first rotating shafts, the first rotating shaft is provided with a first rotating plate, the first rotating plate is rotatably provided with a second rotating plate, a torsion spring is installed between the second rotating plate and the adjacent first rotating plate, the first rotating plate is limitedly rotated with a first fixed shell, a torsion spring is installed between the first fixed shell and the adjacent first rotating plate, the side wall of the bed body is provided with an arc groove, a rotating frame is limitedly slidably provided in the arc groove of the bed body, the rotating frame is fixedly connected to the two first fixed shells, the rotating frame is rotatably provided with a first bevel gear, the opposite ends of the two first rotating plates are fixedly connected with a second bevel gear meshing with the first bevel gear on the rotating frame, the side wall of the bed body is fixedly connected with a first electric push rod, the telescopic end of the first electric push rod is fixedly connected with a limit frame slidably matched with the rotating frame, and a torsion mechanism for swinging the two second rotating plates is provided on the bed body.

[0005] Preferably, the torsion mechanism includes two symmetrical second rotating shafts, and the two second rotating shafts are respectively arranged on the second rotating plate and at the rotation center of the adjacent first rotating plate, the second rotating shaft is rotationally connected to the adjacent first rotating plate, the second rotating shaft is fixedly connected to the first gear, and the bed body is fixedly connected to two symmetrical first arc-shaped racks and two symmetrical second arc-shaped racks, and the first arc-shaped rack and the adjacent second arc-shaped rack are both matched with the adjacent first gear transmission.

[0006] Preferably, it also includes a reciprocating mechanism for driving the two first rotating plates to swing alternately, the reciprocating mechanism is arranged on the bed body, the reciprocating mechanism includes a fixed frame, the fixed frame is fixedly connected to the side wall of the bed body, one of the first rotating shafts penetrates the fixed frame and is rotatably connected thereto, a first sliding rack is slidably arranged in the fixed frame, a second gear meshing with the first sliding rack is fixedly connected to the first rotating shaft near the fixed frame, a driving motor is fixedly connected to the side wall of the bed body near the first sliding rack, a turntable is fixedly connected to the output shaft of the driving motor, a slide groove is arranged on the turntable, a sliding column is limitedly slidingly arranged in the slide groove of the turntable, the first sliding rack is provided with a slide groove slidably matched with the sliding column, and an adjustment component for adjusting the position of the sliding column is provided on the bed body.

[0007] Preferably, the adjustment component includes a second electric push rod, which is fixedly connected to the side wall of the bed body close to the drive motor, and the telescopic end of the second electric push rod is fixedly connected to a first fixed plate, and the first fixed plate is rotatably provided with a first sliding frame, the first sliding frame is sleeved on the turntable and slidingly cooperates with it in a limited manner, the first sliding frame is provided with an inclined groove, and the sliding column is provided with a convex column that slides with the inclined groove on the first sliding frame.

[0008] Preferably, a mode switching mechanism for changing the exercise mode is also included, the mode switching mechanism is arranged on the bed body, the first rotating plate is rotatably connected to the adjacent first rotating shaft, the second rotating shaft is rotatably connected to the adjacent second rotating plate, a limiting groove is arranged on the side of the bed body close to the first electric push rod, the mode switching mechanism includes a first fixed frame, the first fixed frame is slidably arranged in the limiting groove of the bed body, and the first fixed frame is fixedly connected to the telescopic end of the first electric push rod, a second fixed shell filled with liquid is fixedly connected to the lower side of the bed body, the second fixed shell is slidably matched with the first fixed frame, and the first fixed shell is fixedly connected to the lower side of the bed body. The two fixed shells are slidably provided with two symmetrical second sliding frames, and the second sliding frames are located at the upper limit sliding of the bed body, the first rotating shaft is fixedly connected with a fixed sleeve, and a spline groove is provided on the side of the fixed sleeve close to the adjacent first rotating plate, and a spline groove is provided on the side of the first rotating plate close to the adjacent fixed sleeve, and a first rotating sleeve is slidably provided on the first rotating shaft with limited sliding cooperation with the spline groove on the adjacent fixed sleeve and the spline groove on the adjacent first rotating plate, the first rotating sleeve is rotatably cooperated with the adjacent second sliding frame, and the two first rotating sleeves are jointly provided with two switching components for changing the rotation mode of the second rotating plate.

[0009] Preferably, the switching assembly includes two symmetrical second fixed plates, and the two second fixed plates are respectively rotatably set on adjacent first rotating sleeves, a spline groove is set on the side of the first gear close to the adjacent second rotating plate, and a spline groove is set on the side of the second rotating plate close to the adjacent first gear, and the second rotating shaft is slidably provided with a second rotating sleeve which is limitedly slidably matched with the spline groove on the adjacent first gear and the spline groove on the adjacent second rotating plate, and the second rotating sleeve is rotatably connected to the adjacent second fixed plate.

[0010] Preferably, a massage mechanism for massaging the calf is also included, the massage mechanism is arranged on the two first rotating plates, the massage mechanism includes two symmetrical second fixed frames, the two second fixed frames are respectively fixed to the adjacent first rotating plates, the second fixed frame is slidably provided with two symmetrical first sliding blocks, the two first sliding blocks on the same second fixed frame are slidably provided with a sliding frame, a spring is installed between the sliding frame and the adjacent first sliding blocks, the sliding frame is slidably matched with the adjacent second fixed frame, the side wall of the first rotating plate is fixedly connected with a third electric push rod, the The sliding frame is provided with a T-shaped slot, and the telescopic end of the third electric push rod is located in the T-shaped slot of the adjacent sliding frame for limited sliding. Two symmetrical groups of second sliding blocks are slidingly arranged in the sliding frame, and each group of the second sliding blocks includes two symmetrical ones. A rotating roller is rotatably arranged between each group of the second sliding blocks. A tension spring is installed between two adjacent second sliding blocks on two rotating rollers in the same sliding frame. The second fixed frame is fixedly connected to the limited block, and the second sliding block close to the limited block is provided with a convex column for extrusion cooperation therewith. An extrusion component for changing the extrusion force of all the rotating rollers is provided on the bed.

[0011] Preferably, the rotating roller is provided with evenly distributed protrusions, and the protrusions of the rotating roller are used to simulate acupoint massage.

[0012] Preferably, the extrusion assembly includes a third fixed frame, the third fixed frame is fixedly connected to the bed body, the third fixed frame is limited and slidably provided with two symmetrical second sliding racks, a spring is installed between the second sliding rack and the third fixed frame, the second rotating shaft is fixedly connected with a third gear meshing with the adjacent second sliding rack, the second sliding rack is fixedly connected to the limiting frame, the limiting frame is provided with an inclined surface, the second fixed frame is limited and slidably provided with a third sliding frame contacting and cooperating with the adjacent sliding frame, and the third sliding frame is provided with a convex column extruded and matched with the inclined surface on the adjacent limiting frame.

[0013] Preferably, it also includes a load mechanism for applying a load to the knee, the load mechanism is arranged on the two second rotating plates, the load mechanism includes two symmetrical sliding pallets, the two sliding pallets are respectively slidably arranged on adjacent second rotating plates, the sliding pallets are installed with straps, the sliding pallets are slidably provided with a sliding plate, a spring is installed between the sliding plate and the adjacent sliding pallets, and the sliding plate is rotatably provided with a threaded rod that cooperates with the thread of the second rotating plate.

[0014] Compared with the prior art, the technical effect achieved by the present invention is as follows: the present invention controls the bending frequency and bending amplitude of the patient's legs through the operation of the first electric push rod, thereby improving the diversity of the exercise of the device and accelerating the rehabilitation of the patient's legs; and then exercises the patient's ankle area through the rotation setting between the second rotating plate and the adjacent first rotating plate, thereby further exercising the patient's leg muscles in an all-round manner and further improving the exercise effect of the device; the two first rotating plates are used to swing back and forth in an staggered manner so that the device simulates the running of the patient's legs, increases the exercise mode of the patient's legs, and improves the exercise and rehabilitation effect of the patient; the movement of the first rotating sleeve and the second rotating sleeve enables the patient to actively perform load-type bending exercise, so that the device can perform different modes of exercise on patients in different recovery stages and further improve the rehabilitation exercise effect; the reciprocating movement of the rotating roller massages the patient's leg muscles and improves the recovery effect of the patient's legs; the rotation adjustment of the threaded rod applies a load to the patient's knee area, making the patient's leg running simulation more realistic, deepening the all-roundness of the exercise simulation, and improving the exercise effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the parts in the housing of the present invention;

[0017] Figure 3 It is a schematic diagram of the structure of the components of the first rotating plate and the second rotating plate of the present invention;

[0018] Figure 4 is a cross-sectional view of the torsion mechanism of the present invention;

[0019] Figure 5 It is a cross-sectional view of the components of the first rotating plate and the first fixed shell of the present invention;

[0020] Figure 6 It is a three-dimensional structural schematic diagram of the reciprocating mechanism of the present invention;

[0021] Figure 7 is a cross-sectional view of the reciprocating mechanism of the present invention;

[0022] Figure 8 An exploded view of the adjustment assembly of the present invention;

[0023] Fig. 9 It is a three-dimensional structural schematic diagram of the mode replacement mechanism of the present invention;

[0024] Fig.10 A cross-sectional view of a mode replacement mechanism of the present invention;

[0025] Fig.11 It is a schematic diagram of the three-dimensional structure of the switching component of the present invention;

[0026] Fig.12 It is a schematic diagram of the three-dimensional structure of the massage mechanism of the present invention;

[0027] Fig.13 is a cross-sectional view of the massage mechanism of the present invention;

[0028] Fig.14 is a cross-sectional view of an extrusion assembly of the present invention;

[0029] Fig.15 It is a cross-sectional view of the loading mechanism of the present invention.

[0030] Figure Number:

[0031] 1-bed, 11-shell, 12-control panel, 13-first rotating shaft, 14-first rotating plate, 15-second rotating plate, 16-first fixed shell, 17-rotating frame, 18-first electric push rod;

[0032] 19-second rotating shaft, 191-first gear, 192-first arc-shaped rack, 193-second arc-shaped rack;

[0033] 2-fixed frame, 21-first sliding rack, 211-second gear, 22-driving motor, 23-turntable, 24-sliding column;

[0034] 3-second electric push rod, 31-first fixed plate, 32-first sliding frame;

[0035] 4-first fixed frame, 41-second fixed shell, 42-second sliding frame, 43-fixed sleeve, 44-first rotating sleeve;

[0036] 5-second fixed plate, 51-second rotating sleeve;

[0037] 6-second fixed frame, 61-first sliding block, 62-sliding frame, 63-third electric push rod, 64-second sliding block, 65-rotating roller, 66-limiting block;

[0038] 7-third fixed frame, 71-second sliding rack, 711-third gear, 72-limiting frame, 73-third sliding frame;

[0039] 8-sliding support plate, 81-sliding plate, 82-threaded rod. DETAILED DESCRIPTION

[0040] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention.

[0041] Embodiment 1: A postoperative leg exercise device with adjustment function, referring to Figure 1-Figure 5As shown, it includes a bed body 1, two symmetrical front and rear straps are installed on the upper side of the bed body 1, the front and rear sides of the bed body 1 are fixedly connected with a shell 11, the front shell 11 is fixedly connected with a control panel 12, the front and rear parts of the bed body 1 are rotatably provided with a first shaft 13, the two first shafts 13 are respectively located in adjacent shells 11, the first shaft 13 is provided with a first rotating plate 14, the left part of the first rotating plate 14 is rotatably provided with a second rotating plate 15, a torsion spring is installed between the second rotating plate 15 and the adjacent first rotating plate 14, under the support of the torsion spring, the second rotating plate 15 and the adjacent first rotating plate 14 are kept vertical in the initial state, the right part of the first rotating plate 14 is limitedly rotatably provided with a first fixed shell 16, a torsion spring is installed between the first fixed shell 16 and the adjacent first rotating plate 14, an arc groove is provided at the front part of the bed body 1, A rotating frame 17 is provided in a limited sliding manner in the arc groove, and the rear part of the rotating frame 17 is fixedly connected to the two first fixed shells 16. A first bevel gear is rotatably provided on the rotating frame 17. The facing ends of the two first rotating plates 14 are fixedly connected to the second bevel gear, and the two second bevel gears are meshed with the first bevel gear on the rotating frame 17. The first bevel gear and the two second bevel gears form a bevel gear set. A first electric push rod 18 electrically connected to the control panel 12 is fixedly connected to the lower part of the front side of the bed body 1, and a limit frame slidably matched with the rotating frame 17 is provided at the telescopic end of the first electric push rod 18. A torsion mechanism for the swing of the two second rotating plates 15 is provided on the bed body 1. Through the operation of the first electric push rod 18, the swing amplitude and swing speed of the first rotating plate 14 are controlled to complete the uniform bending exercise of the patient's legs, improve the exercise effect, and reduce the stimulation to the patient's legs.

[0042] Reference Figure 3 and Figure 4 As shown, the torsion mechanism includes two second rotating shafts 19 that are symmetrical in front and back. The two second rotating shafts 19 are respectively arranged on the second rotating plate 15 at the rotation center of the adjacent first rotating plate 14. The second rotating shafts 19 penetrate the adjacent first rotating plate 14 and are rotatably connected thereto. The opposite ends of the two second rotating shafts 19 are fixedly connected to the first gear 191. Two symmetrical first arc-shaped racks 192 and two symmetrical second arc-shaped racks 193 are fixedly connected to the bed body 1. The first arc-shaped rack 192 and the adjacent second arc-shaped rack 193 are both matched with the adjacent first gear 191 in transmission. Through the transmission action of the first gear 191 and the adjacent first arc-shaped rack 192 and the adjacent second arc-shaped rack 193, the patient's ankle is bent and swung, so that the patient's leg muscles can be exercised in different tension states, thereby realizing all-round exercise of the patient's leg muscles.

[0043] When performing rehabilitation exercises on the patient's legs, the operator first transfers the patient to the bed 1. At this time, the rotating frame 17 is located at the leftmost end of the arc groove on the bed 1, and under the torsion force of the torsion spring between the first fixed shell 16 and the adjacent first rotating plate 14, the first rotating plate 14 is in a horizontal state. At the same time, under the torsion force of the torsion spring between the first rotating plate 14 and the adjacent second rotating plate 15, the second rotating plate 15 is perpendicular to the adjacent first rotating plate 14. Then the operator places the patient's legs on the first rotating plate 14 and makes the second rotating plate 15 contact and support the soles of the patient's feet. Then, the two straps on the bed 1 are used to fix the patient's thighs. Subsequently, the remaining straps are used to fix the patient's feet on the second rotating plate 15, and the patient's calves are fixed on the first rotating plate 14. At this time, the fixation of the patient's legs is completed.

[0044] After completing the fixation of the patient's legs, the operator starts the first electric push rod 18 to slowly retract through the control panel 12. At this time, the upper limit frame of the first electric push rod 18 squeezes the rotating frame 17 to make it slide along the arc groove on the bed body 1. The sliding of the rotating frame 17 drives the two first fixed shells 16 to rotate together. The rotation of the first fixed shell 16 drives the first rotating plate 14 to swing downward through the connected torsion spring. The swing of the first rotating plate 14 drives the patient's legs to perform bending exercises through the straps, thereby completing the passive exercise of the patient's legs.

[0045] During the swinging process of the first rotating plate 14, the first rotating plate 14 simultaneously drives the adjacent second rotating plate 15, the adjacent second rotating shaft 19 and the adjacent first gear 191 to swing together, and the first gear 191 swings through the adjacent second arc-shaped rack 193 and the first arc-shaped rack 192. At this time, under the limiting action of the second arc-shaped rack 193 and the first arc-shaped rack 192, the first gear 191 drives the adjacent second rotating plate 15 to swing along the adjacent first rotating plate 14 through the adjacent second rotating shaft 19. During the passive flexion exercise of the patient's leg, the patient's ankle is flexed, completing the full-scale passive exercise of the patient's leg, thereby improving the rehabilitation exercise effect.

[0046] During the above-mentioned exercise process, the operator adjusts the reciprocating frequency of the first electric push rod 18 through the control panel 12 to exercise the patient's legs with different intensities. When the patient's legs are just being exercised, the operator controls the reciprocating frequency of the first electric push rod 18 through the control panel 12 to gradually increase, and slowly bends the patient's legs in the early stage to exercise them, so as to facilitate the rapid activation of the patient's leg muscles and reduce the stimulation to the patient's legs. After the patient's legs have been exercised for a period of time, the exercise operation is completed, and the operator controls the first electric push rod 18 to restore to the initial state through the control panel 12, and then the control panel 12 controls the first electric push rod 18 to stop working, and finally transfers the patient from the bed 1 to the hospital bed, and repeats the above operation for the remaining patients when they perform leg exercises.

[0047] Example 2: Based on Example 1, refer to Figure 6 and Figure 7 As shown, it also includes a reciprocating mechanism for driving the two first rotating plates 14 to swing alternately, the reciprocating mechanism is arranged on the bed body 1, the reciprocating mechanism includes a fixed frame 2, the fixed frame 2 is fixedly connected to the front side of the bed body 1, the first rotating shaft 13 on the front side penetrates the fixed frame 2 and is rotatably connected thereto, a first sliding rack 21 is slidably arranged in the fixed frame 2, the first rotating shaft 13 on the front side is fixedly connected to a second gear 211, the second gear 211 is meshed with the first sliding rack 21, a driving motor 22 electrically connected to the control panel 12 is fixedly connected to the front side of the bed body 1, the output shaft of the driving motor 22 is fixedly connected to a turntable 23, the turntable A slide groove is provided on 23, and a sliding column 24 is provided in the slide groove of the turntable 23 for limited sliding. The first sliding rack 21 is provided with a slide groove that slides with the sliding column 24. An adjusting component for adjusting the position of the sliding column 24 is provided on the bed body 1. By driving the motor 22, the first rotating shaft 13 on the front side is controlled to drive the first rotating plate 14 on the front side to swing back and forth. At the same time, under the guidance of the bevel gear set, the first rotating plate 14 on the rear side swings back and forth at the same time. At this time, the two first rotating plates 14 swing back and forth in an alternating manner, so that the patient's legs simulate running exercise and accelerate the recovery of the patient's legs.

[0048] Reference Figure 7 and Figure 8 As shown, the adjustment component includes a second electric push rod 3 electrically connected to the control panel 12, the second electric push rod 3 is fixedly connected to the front side of the bed body 1, and the telescopic end of the second electric push rod 3 is fixedly connected to the first fixed plate 31, and the lower part of the first fixed plate 31 is rotatably provided with a first sliding frame 32, the middle part of the first sliding frame 32 is provided with a spline groove, the turntable 23 is located in the spline groove of the first sliding frame 32 and slides, the front part of the first sliding frame 32 is provided with two left-right symmetrical inclined grooves, the rear part of the sliding column 24 is provided with two symmetrical convex columns, and the two convex columns of the sliding column 24 are respectively located in the two inclined grooves of the first sliding frame 32 and slide, and the operation of the second electric push rod 3 is used to adjust the distance between the sliding column 24 and the center of the turntable 23, so as to realize the adjustment of the running amplitude of the patient's legs.

[0049] After completing the above exercise, the operator selects another exercise mode through the control panel 12. During the process, the control panel 12 first controls the first electric push rod 18 to squeeze the rotating frame 17 to move to the right limit of the arc groove on the bed body 1. At this time, the two first rotating plates 14 are in a vertical state. Then the control panel 12 stops the first electric push rod 18 and starts the drive motor 22. The drive motor 22 drives the turntable 23 and the sliding column 24 to rotate continuously. Then the sliding column 24 rotates and squeezes the sliding groove of the first sliding rack 21, so that the first sliding rack 21 moves back and forth left and right. The sliding rack 21 reciprocates left and right to drive the adjacent first rotating shaft 13 to rotate reciprocatingly through the second gear 211, and the first rotating shaft 13 drives the adjacent first rotating plate 14 to swing back and forth, and the first rotating shaft 13 drives another first rotating shaft 13 to rotate in the opposite direction through three meshing bevel gears, and the other first rotating shaft 13 drives the adjacent first rotating plate 14 to swing back and forth together. At this time, the two first rotating plates 14 swing back and forth in an staggered manner, so that the patient's legs simulate running, and the patient's legs are exercised in different ways, thereby improving the rehabilitation effect of the patient's legs.

[0050] During the above-mentioned simulated running exercise process, the operator adjusts the second electric push rod 3 through the control panel 12, and the second electric push rod 3 drives the first sliding frame 32 to move through the first fixed plate 31. The first sliding frame 32 moves so that the inclined groove on it squeezes the convex column of the sliding column 24, thereby changing the distance between the sliding column 24 and the center of the turntable 23, thereby changing the reciprocating movement distance of the first sliding rack 21, and finally completing the adjustment of the patient's leg swing range, and then adjusting the frequency of the drive motor 22 to adjust the patient's leg swing frequency, so as to facilitate targeted exercise intensity for the patient's leg state, improve the exercise effect, and accelerate the recovery of the patient's legs. After completing a set of exercises, the operator turns off the drive motor 22 through the control panel 12, and restores the first electric push rod 18 to its initial state, and then transfers the patient from the bed body 1 to the bed.

[0051] Example 3: Based on Example 2, refer to Fig. 9 and Fig.10As shown, it also includes a mode switching mechanism for changing the exercise mode, the mode switching mechanism is arranged on the bed body 1, the first rotating plate 14 is rotatably connected to the adjacent first rotating shaft 13, the second rotating shaft 19 is rotatably connected to the adjacent second rotating plate 15, the front part of the bed body 1 is provided with a horizontal limit groove, the mode switching mechanism includes a first fixed frame 4, the first fixed frame 4 is slidably arranged in the horizontal limit groove of the bed body 1, and the first fixed frame 4 is fixedly connected to the telescopic end of the first electric push rod 18, the lower side of the bed body 1 is fixedly connected to a second fixed shell 41 filled with liquid, the rear part of the first fixed frame 4 is located in the second fixed shell 41 and slides in a sealed manner, the front and rear parts of the second fixed shell 41 are both provided with second sliding frames 42 in a sealed manner, and the two second sliding frames 42 are both located in the upper limit sliding of the bed body 1, and the two first rotating frames 42 are fixedly connected to the upper limit sliding of the bed body 1. The shafts 13 are fixedly connected with fixed sleeves 43, and the facing sides of the two fixed sleeves 43 are provided with spline grooves, and the opposite sides of the rotation centers of the two first rotating plates 14 are provided with spline grooves. The two first rotating shafts 13 are slidably provided with first rotating sleeves 44, and the first rotating sleeves 44 are slidingly matched with the spline grooves on the adjacent fixed sleeves 43 and the spline grooves on the adjacent first rotating plates 14 in a limited manner. The first rotating sleeves 44 are rotationally matched with the adjacent second sliding frames 42, and the two first rotating sleeves 44 are jointly provided with two switching components for changing the rotation mode of the second rotating plates 15. By changing the position of the first rotating sleeves 44, the connection and separation of the power transmission between the first rotating shaft 13 and the adjacent first rotating plates 14 are completed, which is convenient for patients to perform independent exercises, improves the exercise diversity of the device, and accelerates the rehabilitation of the patients' legs.

[0052] Reference Fig.11 As shown, the switching assembly includes two second fixed plates 5 that are symmetrical front and back, and the two second fixed plates 5 are rotatably set on adjacent first rotating sleeves 44 respectively. The facing sides of the two first gears 191 are provided with spline grooves, and the opposite sides of the two second rotating plates 15 are provided with spline grooves. The second rotating shaft 19 is slidably provided with a second rotating sleeve 51, and the second rotating sleeve 51 and the spline grooves on the adjacent first gears 191 and the spline grooves on the adjacent second rotating plates 15 are all limitedly slidably matched. The second rotating sleeve 51 is rotatably connected to the adjacent second fixed plate 5, and the connection and separation of the power transmission between the second rotating shaft 19 and the second rotating plate 15 are controlled by controlling the position of the second rotating sleeve 51, so as to facilitate the patient's ankle to perform autonomous flexion exercises.

[0053] When the patient performs the above-mentioned leg running exercise, the operator first controls the first electric push rod 18 through the control panel 12, so that the limit frame of the telescopic end of the first electric push rod 18 squeezes the rotating frame 17 to the right limit of the inclined groove on the bed body 1. At this time, the telescopic end of the first electric push rod 18 moves and drives the first fixed frame 4 to move at the same time. The movement of the first fixed frame 4 squeezes the liquid in the second fixed shell 41 to make the two second sliding frames 42 move away from each other. At this time, the movement of the two second sliding frames 42 respectively drives the adjacent first rotating sleeves 44 to move. When the first rotating sleeve 44 finishes moving, the first rotating sleeve 44 releases the cooperation with the spline groove on the adjacent first rotating plate 14. At this time, the first rotating shaft 13 releases the transmission between the adjacent first rotating plate 14, and the patient subsequently performs swinging exercise autonomously. During this process, the first rotating plate 14 swings and twists the torsion spring between it and the adjacent first fixed shell 16. The torsion of the torsion spring generates torsional resistance, which provides load for the patient's leg exercise.

[0054] The first rotating sleeve 44 moves and simultaneously moves the adjacent second rotating sleeve 51 of the adjacent second fixed plate 5. After the second rotating sleeve 51 has completed its movement, it releases the cooperation with the spline groove on the adjacent second rotating plate 15, that is, the second rotating shaft 19 releases the power transmission between the adjacent second rotating plate 15. The patient swings his ankle freely. During this process, the second rotating plate 15 swings relative to the adjacent first rotating plate 14 and twists the torsion spring therebetween. The torsion force of the torsion spring provides resistance to the rotation of the patient's ankle, thereby improving the patient's exercise effect.

[0055] The above-mentioned training method of actively bending the legs of the patients further enriches the training methods of the device, improves the diversity of the device, facilitates the patients to perform different modes of training at different stages, and accelerates the recovery of the patients' legs.

[0056] If the above-mentioned passive bending exercise of the patient's leg is required, the operator can select the corresponding gear on the control panel 12. When the control panel 12 controls the first electric push rod 18 to move, the first electric push rod 18 will not move the rotating frame 17 to the right limit of the inclined groove on the bed body 1. During the swinging process of the rotating frame 17 controlled by the first electric push rod 18, the first rotating sleeve 44 always cooperates with the spline groove on the adjacent fixed sleeve 43 and the spline groove on the adjacent first rotating plate 14, so that the first rotating shaft 13 transmits power to the adjacent first rotating plate 14 through the adjacent fixed sleeve 43 and the adjacent first rotating sleeve 44, that is, the first rotating plate 14 is fixed relative to the adjacent first rotating shaft 13, and the second rotating sleeve 51 always cooperates with the spline groove on the adjacent second rotating plate 15 and the spline groove on the adjacent first gear 191, so that the first gear 191 transmits power to the adjacent second rotating plate 15 through the adjacent second rotating sleeve 51, that is, the second rotating plate 15 is fixed relative to the adjacent first gear 191 and the adjacent second rotating shaft 19, and the passive bending exercise is subsequently performed to repeat the above operation.

[0057] Example 4: Based on Example 3, refer to Figure 2 , Fig.12 and Fig.13 As shown, it also includes a massage mechanism for massaging the calf, the massage mechanism is arranged on the two first rotating plates 14, the massage mechanism includes two second fixed frames 6 that are symmetrical in front and back, the two second fixed frames 6 are respectively fixed to the adjacent first rotating plates 14, the lower part of the second fixed frame 6 is slidably provided with two first sliding blocks 61 that are symmetrical in front and back, the two first sliding blocks 61 on the same second fixed frame 6 are slidably provided with a sliding frame 62, and the sliding frame 62 is slidably matched with the adjacent second fixed frames 6, a spring is installed between the sliding frame 62 and the adjacent first sliding blocks 61, the side wall of the first rotating plate 14 is fixedly connected with a third electric push rod 63 that is electrically connected to the control panel 12, the left side surface of the sliding frame 62 is provided with a T-shaped groove, the telescopic end of the third electric push rod 63 is located in the T-shaped groove of the adjacent sliding frame 62 and slides in a limited manner, and two groups of second sliding blocks 6 that are symmetrical in top and bottom are slidably provided in the sliding frame 62 4. Each group of second sliding blocks 64 includes two symmetrical front and rear blocks. A rotating roller 65 is rotatably arranged between each group of second sliding blocks 64. The rotating roller 65 is provided with evenly distributed protrusions. The protrusions of the rotating roller 65 are used to simulate acupoint massage. A tension spring is installed between the two second sliding blocks 64 adjacent to each other. The tension spring is in a stretched state in the initial state. The left side of the second fixed frame 6 is fixedly connected to a limiting block 66. The limiting block 66 is provided with two inclined surfaces symmetrical to each other. The two inclined surfaces of the limiting block 66 gradually approach each other from left to right. The two second sliding blocks 64 close to the limiting block 66 are both provided with convex columns. The convex columns of the second sliding blocks 64 are squeezed and matched with the adjacent inclined surfaces on the adjacent limiting blocks 66. An extrusion component for changing the extrusion force of all the rotating rollers 65 is provided on the bed body 1. The squeezing of the patient's legs by the two rotating rollers 65 facilitates all-round exercise of the patient's leg muscles and improves the exercise effect.

[0058] Reference Fig.13 and Fig.14As shown, the extrusion assembly includes a third fixed frame 7, which is fixedly connected to the left part of the bed body 1. The third fixed frame 7 is slidingly provided with two second sliding racks 71 symmetrically arranged front and back. A spring is installed between the second sliding racks 71 and the third fixed frame 7. The opposite ends of the two second rotating shafts 19 are fixedly connected with third gears 711, and the third gears 711 are meshed with adjacent second sliding racks 71. The upper surface of the second sliding rack 71 is fixedly connected with a limiting frame 72, and an inclined surface is arranged on the right side of the limiting frame 72. The upper part of the second fixed frame 6 is slidingly provided with a third sliding frame 73, and the third sliding frame 73 is in contact with and matched with the upper end of the adjacent sliding frame 62. The third sliding frame 73 is provided with a convex column that is pressed and matched with the inclined surface on the adjacent limiting frame 72. By squeezing the adjacent third sliding frame 73 by the limiting frame 72, the height of the sliding frame 62 is changed, so that the rotating roller 65 performs massage of different intensities on the muscles of the patient's legs at different degrees of firmness.

[0059] During the bending exercise of the patient's leg, the operator selects the massage mode through the control panel 12, and the control panel 12 starts the third electric push rod 63. The third electric push rod 63 drives the sliding frame 62 to move back and forth left and right. The sliding frame 62 first moves to the right. The sliding frame 62 moves so that the limit block 66 near it releases the limit squeezing of the convex column on the adjacent second sliding block 64. Under the tension of the tension spring between the upper and lower adjacent second sliding blocks 64, the two adjacent rotating rollers 65 approach and clamp the patient's calf. Then, when the sliding frame 62 drives the adjacent two rotating rollers 65 to move through the adjacent second sliding block 64, the rotating rollers 65 rotate in the patient's calf area. At this time, under the squeezing effect of the protrusions on the rotating rollers 65, the two rotating rollers 65 massage the patient's calf. Subsequently, the sliding frame 62 moves left to reset, and the rotating rollers 65 repeat the above reverse movement to massage the patient's calf.

[0060] During the massage process, the patient keeps his legs horizontal. At this time, the second sliding rack 71 is meshed with the adjacent third gear 711. If the patient swings his ankle in this state, as the patient's ankle swings, the second rotating plate 15 drives the adjacent third gear 711 to rotate through the adjacent second rotating sleeve 51, the adjacent first gear 191 and the adjacent second rotating shaft 19. The rotation of the third gear 711 causes the adjacent second sliding rack 71 to drive the adjacent limiting frame 72 to reciprocate. The reciprocating movement of the limiting frame 72 causes its upper inclined surface to squeeze the adjacent third sliding frame 73 to move, and the third sliding frame 7 3 moves and squeezes the adjacent sliding frame 62, and the sliding frame 62 moves to change the massage strength of the rotating roller 65 on the patient's calf area, so as to facilitate the massage of different strengths on the patient's calf in different tension states, and improve the recovery effect of the patient's leg muscles. After completing the massage operation, the operator controls the third electric push rod 63 to reset through the control panel 12, wherein the limit block 66 resumes the limit squeeze on the convex column on the adjacent second sliding block 64, and the tension spring between the upper and lower adjacent second sliding blocks 64 is stretched and stored, so that the upper and lower adjacent rotating rollers 65 release the pressure on the patient's calf.

[0061] Example 5: Based on Example 4, refer to Fig.14 and Fig.15 As shown, it also includes a load mechanism for applying load to the knee, the load mechanism is arranged on the two second rotating plates 15, the load mechanism includes two sliding pallets 8 that are symmetrical front and back, the sliding pallets 8 are composed of two cylindrical rods and a rectangular plate, the two sliding pallets 8 are respectively slidably arranged on adjacent second rotating plates 15, a strap is installed on the right side of the sliding pallet 8, a sliding plate 81 is slidably arranged on the two cylindrical rods of the sliding pallet 8, the sliding plate 81 is located between the second rotating plate 15 and the rectangular plate of the adjacent sliding pallet 8, two springs that are symmetrical up and down are installed between the sliding plate 81 and the rectangular plate of the adjacent sliding pallet 8, the sliding plate 81 is rotatably provided with a threaded rod 82 that is threadably matched with the second rotating plate 15, through the rotation adjustment of the threaded rod 82, the sliding pallet 8 can apply different squeezing forces to the sole of the patient's foot, thereby completing the application of different squeezing forces to the patient's knee area, making the above-mentioned running exercise simulation more realistic and accelerating the recovery of the patient's legs.

[0062] After the patient lies on the bed 1, the operator repeats the above operation to place the patient's legs on the first rotating plate 14, and the patient's soles step on the sliding support plate 8, and then the operator uses the straps on the sliding support plate 8 to fix the patient's feet. Then the operator rotates the threaded rod 82, and the rotation of the threaded rod 82 drives the adjacent sliding plate 81 to move. The movement of the sliding plate 81 squeezes the adjacent spring, but the sliding support plate 8 remains stationary under the limiting action of the patient's sole, that is, at this time, the spring between the sliding plate 81 and the adjacent sliding support plate 8 is compressed, and the elastic force of the spring acts on the patient's calf through the sliding support plate 8, and then the elastic force of the spring acts on the patient's knee area, so that when the patient performs the above-mentioned running exercise, the running simulation is more realistic, thereby improving the patient's exercise effect.

[0063] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope provided by the present invention, which should be covered within the protection scope of the present invention.

Claims

1. A postoperative leg exercise device with an adjustment function, comprising a bed body (1), wherein two symmetrical straps and two symmetrical shells (11) are installed on the bed body (1), wherein one of the shells (11) is fixedly connected to a control panel (12), wherein the bed body (1) is rotatably provided with two symmetrical first rotating shafts (13), wherein the first rotating shaft (13) is provided with a first rotating plate (14), wherein the first rotating plate (14) is rotatably provided with a second rotating plate (15), wherein a torsion spring is installed between the second rotating plate (15) and the adjacent first rotating plate (14), wherein the first rotating plate (14) is limitedly rotatably provided with a first fixed shell (16), wherein a torsion spring is installed between the first fixed shell (16) and the adjacent first rotating plate (14), wherein a side wall of the bed body (1) is provided with an arc groove, wherein: It also includes a rotating frame (17), the rotating frame (17) is limitedly slidably arranged in the arc groove of the bed body (1), the rotating frame (17) is fixedly connected to the two first fixed shells (16), the rotating frame (17) is rotatably provided with a first bevel gear, the facing ends of the two first rotating plates (14) are fixedly connected with a second bevel gear meshing with the first bevel gear on the rotating frame (17), the side wall of the bed body (1) is fixedly connected with a first electric push rod (18), the telescopic end of the first electric push rod (18) is fixedly connected with a limit frame slidably matched with the rotating frame (17), and the bed body (1) is provided with a torsion mechanism for swinging the two second rotating plates (15); The torsion mechanism comprises two symmetrical second rotating shafts (19), the two second rotating shafts (19) are respectively arranged on the second rotating plate (15) at the rotation center of the adjacent first rotating plate (14), the second rotating shaft (19) is rotationally connected to the adjacent first rotating plate (14), the second rotating shaft (19) is fixedly connected to a first gear (191), the bed body (1) is fixedly connected to two symmetrical first arc-shaped racks (192) and two symmetrical second arc-shaped racks (193), the first arc-shaped racks (192) and the adjacent second arc-shaped racks (193) are both in transmission cooperation with the adjacent first gear (191); The invention also comprises a mode changing mechanism for changing the exercise mode, wherein the mode changing mechanism is arranged on the bed body (1), the first rotating plate (14) is rotationally connected to the adjacent first rotating shaft (13), the second rotating shaft (19) is rotationally connected to the adjacent second rotating plate (15), a limiting groove is arranged on one side of the bed body (1) close to the first electric push rod (18), the mode changing mechanism comprises a first fixing frame (4), the first fixing frame (4) is slidably arranged in the limiting groove of the bed body (1), and the first fixing frame (4) is fixedly connected to the telescopic end of the first electric push rod (18), and a second fixing shell (41) filled with liquid is fixedly connected to the lower side surface of the bed body (1), the second fixing shell (41) is slidably matched with the first fixing frame (4), and the second fixing shell (41) slides Two symmetrical second sliding frames (42) are provided, and the second sliding frames (42) are located on the upper limit position of the bed body (1) for sliding. The first rotating shaft (13) is fixedly connected with a fixing sleeve (43). A spline groove is provided on the side of the fixing sleeve (43) close to the adjacent first rotating plate (14). A spline groove is provided on the side of the first rotating plate (14) close to the adjacent fixing sleeve (43). A first rotating sleeve (44) is slidably provided on the first rotating shaft (13) and is limitedly slidably matched with the spline groove on the adjacent fixing sleeve (43) and the spline groove on the adjacent first rotating plate (14). The first rotating sleeve (44) is rotationally matched with the adjacent second sliding frame (42). Two switching components for changing the rotation mode of the second rotating plate (15) are commonly provided on the two first rotating sleeves (44).

2. The postoperative leg exercise device with adjustment function according to claim 1, characterized in that: The invention also comprises a reciprocating mechanism for driving the two first rotating plates (14) to swing alternately, the reciprocating mechanism being arranged on the bed body (1), the reciprocating mechanism comprising a fixed frame (2), the fixed frame (2) being fixedly connected to the side wall of the bed body (1), one of the first rotating shafts (13) penetrating the fixed frame (2) and being rotatably connected thereto, a first sliding rack (21) being slidably arranged in the fixed frame (2), the first rotating shaft (13) close to the fixed frame (2) being fixedly connected to the first sliding rack (21) The first sliding rack (21) is meshed with a second gear (211), a driving motor (22) is fixedly connected to the side wall of the bed body (1) close to the first sliding rack (21), the output shaft of the driving motor (22) is fixedly connected to a turntable (23), a slide groove is provided on the turntable (23), a sliding column (24) is provided in the slide groove of the turntable (23) for limited sliding, the first sliding rack (21) is provided with a slide groove for sliding cooperation with the sliding column (24), and an adjustment component for adjusting the position of the sliding column (24) is provided on the bed body (1).

3. The postoperative leg exercise device with adjustment function according to claim 2, characterized in that: The adjustment assembly comprises a second electric push rod (3), the second electric push rod (3) being fixedly connected to a side wall of the bed body (1) close to the drive motor (22), the telescopic end of the second electric push rod (3) being fixedly connected to a first fixed plate (31), the first fixed plate (31) being rotatably provided with a first sliding frame (32), the first sliding frame (32) being sleeved on the turntable (23) and slidingly engaged with the turntable (23), the first sliding frame (32) being provided with an inclined groove, and the sliding column (24) being provided with a convex column slidingly engaged with the inclined groove on the first sliding frame (32).

4. The postoperative leg exercise device with adjustment function according to claim 1, characterized in that: The switching assembly comprises two symmetrical second fixed plates (5), the two second fixed plates (5) are rotatably arranged on adjacent first rotating sleeves (44), a spline groove is arranged on the side of the first gear (191) close to the adjacent second rotating plate (15), a spline groove is arranged on the side of the second rotating plate (15) close to the adjacent first gear (191), the second rotating shaft (19) is slidably arranged with a second rotating sleeve (51) which is limitedly slidably matched with the spline groove on the adjacent first gear (191) and the spline groove on the adjacent second rotating plate (15), and the second rotating sleeve (51) is rotatably connected to the adjacent second fixed plate (5).

5. The postoperative leg exercise device with adjustment function according to claim 1, characterized in that: The massage mechanism also includes a massage mechanism for massaging the calf, the massage mechanism being arranged on the two first rotating plates (14), the massage mechanism including two symmetrical second fixed frames (6), the two second fixed frames (6) being respectively fixedly connected to the adjacent first rotating plates (14), the second fixed frames (6) being slidably provided with two symmetrical first sliding blocks (61), the two first sliding blocks (61) on the same second fixed frame (6) being slidably provided with a sliding frame (62), a spring being installed between the sliding frame (62) and the adjacent first sliding blocks (61), the sliding frame (62) being slidably matched with the adjacent second fixed frames (6), the side wall of the first rotating plate (14) being fixedly connected with a third electric push rod (63), the sliding frame (62) A T-shaped slot is provided, and the telescopic end of the third electric push rod (63) is located in the T-shaped slot of the adjacent sliding frame (62) for limited sliding. Two symmetrical groups of second sliding blocks (64) are slidably provided in the sliding frame (62), and each group of the second sliding blocks (64) includes two symmetrical ones. A rotating roller (65) is rotatably provided between each group of the second sliding blocks (64). A tension spring is installed between two adjacent second sliding blocks (64) on two rotating rollers (65) in the same sliding frame (62). The second fixing frame (6) is fixedly connected to the limited block (66), and the second sliding block (64) close to the limited block (66) is provided with a convex column that is extruded and matched therewith. An extrusion component for changing the extrusion force of all the rotating rollers (65) is provided on the bed body (1).

6. The postoperative leg exercise device with adjustment function according to claim 5, characterized in that: The rotating roller (65) is provided with evenly distributed protrusions, and the protrusions of the rotating roller (65) are used to simulate acupoint massage.

7. The postoperative leg exercise device with adjustment function according to claim 5, characterized in that: The extrusion assembly comprises a third fixed frame (7), the third fixed frame (7) is fixedly connected to the bed body (1), the third fixed frame (7) is provided with two symmetrical second sliding racks (71) in a limited sliding manner, a spring is installed between the second sliding racks (71) and the third fixed frame (7), the second rotating shaft (19) is fixedly connected with a third gear (711) meshing with the adjacent second sliding rack (71), the second sliding rack (71) is fixedly connected with a limited frame (72), the limited frame (72) is provided with an inclined surface, the second fixed frame (6) is provided with a third sliding frame (73) in a limited sliding manner contacting and cooperating with the adjacent sliding frame (62), and the third sliding frame (73) is provided with a convex column that is pressed and cooperating with the inclined surface on the adjacent limiting frame (72).

8. The postoperative leg exercise device with adjustment function according to claim 1, characterized in that: The invention also comprises a load mechanism for applying a load to the knee, the load mechanism being arranged on the two second rotating plates (15), the load mechanism comprising two symmetrical sliding pallets (8), the two sliding pallets (8) being respectively slidably arranged on adjacent second rotating plates (15), the sliding pallets (8) being installed with straps, the sliding pallets (8) being slidably provided with a sliding plate (81), a spring being installed between the sliding plate (81) and the adjacent sliding pallets (8), and the sliding plate (81) being rotatably provided with a threaded rod (82) threadably matched with the second rotating plate (15).

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