CN118766720A - Rehabilitation training equipment with joint flexible traction structure - Google Patents

Abstract

The present invention relates to the technical field of rehabilitation training, and discloses a rehabilitation training device with a joint-flexible traction structure, comprising a mounting platform, wherein two first mounting grooves are arranged on the top of the mounting platform, and a first transmission plate is slidably connected in the first mounting groove. The rehabilitation training device with a joint-flexible traction structure pushes a pushing frame to move by extending the legs, and the pushing frame drives a transmission mechanism to operate, and the transmission mechanism drives the first transmission plate to move, and the first transmission plate drives a mounting block and a traction fixing mechanism to move, so as to traction and stretch the patient's spine to achieve rehabilitation exercise for the patient. Meanwhile, during the rehabilitation exercise, the patient can control the operation amplitude of the pushing frame and the transmission mechanism according to the feeling during the traction process, thereby achieving self-control of the patient during the traction rehabilitation exercise, reducing the harm to the patient during the exercise, and further improving the effect of the rehabilitation exercise for the patient.

Description

Rehabilitation training equipment with joint flexible traction structure

Technical Field

The invention relates to the technical field of rehabilitation training, and in particular to a rehabilitation training device with a joint flexible traction structure.

Background Art

Flexible traction is a traction therapy method that applies a slight pulling force on the patient's body to change the posture of the spine and the position of the joints. Compared with traditional mechanical or manual traction, the force used in flexible traction is softer and gentler. Flexible traction is usually used to treat spinal-related diseases or injuries, such as herniated disc, cervical spondylosis, lumbar disc herniation, etc. It can relieve pressure, reduce pain, and help restore normal function of the spine by stretching the spine.

Most existing traction devices use mechanical equipment to provide power for traction of patients. During the traction process, the patients themselves cannot control the traction force in a timely manner, which may lead to excessive traction, causing discomfort to the patients or secondary spinal injury to the patients. At the same time, the comfort of traction for patients during traction exercise is low, causing patients to feel greater discomfort during traction exercise.

Summary of the invention

The object of the present invention is to provide a rehabilitation training device with a joint flexible traction structure to solve the deficiencies in the above-mentioned background technology.

The purpose of the present invention can be achieved through the following technical solutions:

A rehabilitation training device with a joint flexible traction structure comprises a mounting platform, wherein two first mounting grooves are provided on the top of the mounting platform, a first transmission plate is slidably connected in the first mounting groove, a mounting block is fixedly connected to the top of the first transmission plate, a traction fixing mechanism is provided on the mounting block, a transmission mechanism is transmission-connected to one side of the first transmission plate, and the transmission mechanism is used to drive the first transmission plate to move;

A second mounting groove is provided on the top of the mounting platform, a second transmission plate is slidably connected in the second mounting groove, a push frame is fixedly connected to the top of the second transmission plate, a telescopic rod fixedly connected to the second mounting groove is fixedly connected to one side of the second transmission plate, a spring fixedly connected to the second mounting groove is fixedly sleeved on the outer surface of the telescopic rod, and the second transmission plate is transmission-connected to the transmission mechanism.

As a further solution of the present invention: the transmission mechanism includes a transmission box fixedly connected to the mounting table, a first transmission shaft is rotatably connected in the transmission box, a first gear is fixedly sleeved on the outer surface of the first transmission shaft, two first transmission racks are meshedly connected on the outer surface of the first gear, a first connecting plate is fixedly connected to the first transmission rack, second connecting plates fixedly connected to the first transmission plate are fixedly connected on both sides of the first connecting plate, a second gear is fixedly sleeved on the outer surface of the first transmission shaft, and the outer surface of the second gear is meshedly connected to the second transmission rack fixedly connected to the second transmission plate.

As a further solution of the present invention: the traction and fixing mechanism includes an adjustment groove opened on the mounting block, an adjustment threaded rod is rotatably connected in the adjustment groove, the outer surface of the adjustment threaded rod is threadedly matched with an adjustment block slidably connected to the adjustment groove, a first electric telescopic rod is fixedly connected to one side of the adjustment block, one end of the first electric telescopic rod is fixedly connected to a clamping block, and the mounting block is provided with an extrusion and fixing mechanism connected to the clamping block.

As a further solution of the present invention: the extrusion and fixing mechanism includes a blow box fixedly connected to the mounting block, a second electric telescopic rod fixedly connected inside the blow box, one end of the second electric telescopic rod fixedly connected to an extrusion plate slidably connected to the blow box, a hose fixedly connected to one side of the blow box, one end of the hose fixedly connected to a connecting pipe fixedly connected to the clamping block, and an outer surface of the connecting pipe fixedly connected to a fixed air bag fixedly connected to the clamping block through a pipe.

As a further solution of the present invention: a plurality of installation frames are fixedly connected to one side of the clamping block, and massage rollers are rotatably connected inside the installation frames.

As a further solution of the present invention: a third mounting groove is provided on the top of the mounting platform, a support plate is fixedly connected to one side of the first transmission plate, a third electric telescopic rod is fixedly connected to the top of the support plate, a mounting box is fixedly connected to the top of the third electric telescopic rod, a plurality of second transmission shafts are rotatably connected in the mounting box, a plurality of cams are fixedly sleeved on the outer surface of the second transmission shaft, a transmission block is slidably connected to the outer surface of the cam, a transmission column slidably connected to the mounting box is fixedly connected to the top of the transmission block, a knocking block is fixedly connected to the top of the transmission column, and a driving mechanism connected to the mounting box is transmission-connected to the outer surface of the second transmission shaft.

As a further solution of the present invention: the driving mechanism includes a driving motor fixedly connected to the mounting box, the output end of the driving motor is fixedly connected to one of the second transmission shafts through a coupling, the outer surface of one of the second transmission shafts is fixedly sleeved with a first driving gear, and the outer surface of the first driving gear is meshingly connected with a second driving gear fixedly sleeved with the other two second transmission shafts.

As a further solution of the present invention: a pillow block is fixedly connected to the top of the mounting platform, and an arc-shaped limiting groove is opened on one side of the pillow block.

Beneficial effects of the present invention:

(1) The patient lies on the mounting table, and then adjusts the traction fixing mechanism on the mounting block to a suitable position according to the patient's height. The patient then pushes the push frame to move by extending his legs, and the push frame drives the transmission mechanism to operate, and the transmission mechanism drives the first transmission plate to move, and the first transmission plate drives the mounting block and the traction fixing mechanism to move, so as to traction and stretch the patient's spine, thereby achieving rehabilitation exercise for the patient. At the same time, during the rehabilitation exercise, the patient can control the operating amplitude of the push frame and the transmission mechanism according to the feeling during the traction process, thereby achieving self-control of the patient during the traction rehabilitation exercise, reducing the harm to the patient during the exercise, and further improving the effect of the patient's rehabilitation exercise.

(2) By driving the traction fixation mechanism to perform traction fixation on the patient, the massage roller on the clamping device massages both sides of the patient, thereby promoting blood circulation on both sides and promoting traction and stretching at the back, thereby improving the comfort during traction exercise. At the same time, by inflating the fixed airbag, the clamping block can flexibly clamp the patient, thereby reducing the damage to the patient caused by the clamping force, thereby further improving the patient's comfort during the traction process.

(3) When the traction fixation mechanism is driven to pull the patient, the installation box is driven to move, and at the same time, the second transmission shaft in the installation box is driven to rotate by the driving mechanism. The second transmission shaft drives the cam to rotate, and the cam drives the transmission block and the transmission column to move up and down. The multiple transmission columns drive the multiple knocking blocks to perform reciprocating knocking and massage on the patient's spine, thereby promoting blood circulation in the patient's spine. At the same time, the patient's spine is knocked and relaxed before traction, so that the patient maintains a certain sense of relaxation, which is convenient for subsequent traction and reduces pain during traction, thereby further improving the traction training effect on the patient's spine.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be further described below in conjunction with the accompanying drawings.

FIG1 is a first stereoscopic view of the external structure of the present invention;

FIG2 is a second perspective view of the external structure of the present invention;

FIG3 is a third perspective view of the external structure of the present invention;

FIG4 is a top view of the internal structure of the transmission box of the present invention;

5 is a front view of the internal structure of the drum box of the present invention;

6 is a front view of the internal structure of the installation box of the present invention;

FIG7 is an enlarged view of A in FIG1 of the present invention;

FIG8 is an enlarged view of B in FIG2 of the present invention.

In the figure: 1, mounting table; 2, first mounting slot; 3, first transmission plate; 4, mounting block; 5, second mounting slot; 6, second transmission plate; 7, push frame; 8, telescopic rod; 9, spring; 11, transmission box; 12, first transmission shaft; 13, first gear; 14, first transmission rack; 15, first connecting plate; 16, second connecting plate; 17, second gear; 18, second transmission rack; 21, adjustment slot; 22, adjustment threaded rod; 23, adjustment block; 24, first electric telescopic rod; 25, clamping block ; 31. air box; 32. second electric telescopic rod; 33. extrusion plate; 34. hose; 35. connecting pipe; 36. fixed airbag; 41. mounting frame; 42. massage roller; 51. third mounting groove; 52. support plate; 53. third electric telescopic rod; 54. mounting box; 55. second transmission shaft; 56. cam; 57. transmission block; 58. transmission column; 59. knocking block; 61. driving motor; 62. first driving gear; 63. second driving gear; 71. pillow block; 72. arc limit groove.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Embodiment 1

Referring to FIGS. 1 to 8 , the present invention is a rehabilitation training device with a joint flexible traction structure, comprising a mounting platform 1, two first mounting grooves 2 are provided on the top of the mounting platform 1, a first transmission plate 3 is slidably connected in the first mounting groove 2, a mounting block 4 is fixedly connected to the top of the first transmission plate 3, a traction fixing mechanism is provided on the mounting block 4, a transmission mechanism is transmission-connected to one side of the first transmission plate 3, and the transmission mechanism is used to drive the first transmission plate 3 to move;

A second mounting groove 5 is provided on the top of the mounting platform 1, in which a second transmission plate 6 is slidably connected, a push frame 7 is fixedly connected to the top of the second transmission plate 6, a telescopic rod 8 fixedly connected to the second mounting groove 5 is fixedly connected to one side of the second transmission plate 6, a spring 9 fixedly connected to the second mounting groove 5 is fixedly sleeved on the outer surface of the telescopic rod 8, and the second transmission plate 6 is transmission-connected to the transmission mechanism.

The patient lies on the mounting table 1, and then the patient bends his legs and puts his feet into the pushing frame 7. Then, the traction fixing mechanism is adjusted to a suitable position according to the patient's height. Then, the patient pushes the pushing frame 7 and the second transmission plate 6 to slide in the second mounting groove 5 through his legs. At the same time, the second transmission plate 6 drives the transmission mechanism to operate, and the transmission mechanism drives the first transmission plate 3 to move. The first transmission plate 3 drives the mounting block 4 and the traction fixing mechanism to move, so as to traction and stretch the patient's spine and realize rehabilitation exercise for the patient. At the same time, during the rehabilitation exercise, the patient can control the operation amplitude of the pushing frame 7 and the transmission mechanism according to the feeling during the traction process, thereby realizing the patient's self-control during the traction rehabilitation exercise, reducing the harm to the patient during the exercise, and further improving the effect of the rehabilitation exercise for the patient.

Embodiment 2

On the basis of Example 1, please refer to Figures 1, 3, 4, 5 and 7, the transmission mechanism includes a transmission box 11 fixedly connected to the mounting table 1, a first transmission shaft 12 is rotatably connected in the transmission box 11, a first gear 13 is fixedly sleeved on the outer surface of the first transmission shaft 12, the outer surface of the first gear 13 is meshingly connected to two first transmission racks 14, the first transmission rack 14 is fixedly connected to the first connecting plate 15, both sides of the first connecting plate 15 are fixedly connected to the second connecting plate 16 fixedly connected to the first transmission plate 3, a second gear 17 is fixedly sleeved on the outer surface of the first transmission shaft 12, and the outer surface of the second gear 17 is meshingly connected to the second transmission rack 18 fixedly connected to the second transmission plate 6.

The traction fixing mechanism includes an adjustment groove 21 opened on the mounting block 4, an adjustment threaded rod 22 is rotatably connected in the adjustment groove 21, the outer surface of the adjustment threaded rod 22 is threadedly matched with an adjustment block 23 slidably connected to the adjustment groove 21, a first electric telescopic rod 24 is fixedly connected to one side of the adjustment block 23, one end of the first electric telescopic rod 24 is fixedly connected to a clamping block 25, and an extrusion fixing mechanism connected to the clamping block 25 is provided on the mounting block 4.

The extrusion and fixing mechanism includes an air box 31 fixedly connected to the mounting block 4, a second electric telescopic rod 32 fixedly connected inside the air box 31, one end of the second electric telescopic rod 32 fixedly connected to an extrusion plate 33 slidably connected to the air box 31, a hose 34 fixedly connected to one side of the air box 31, one end of the hose 34 fixedly connected to a connecting pipe 35 fixedly connected to the clamping block 25, and an outer surface of the connecting pipe 35 fixedly connected to a fixed air bag 36 fixedly connected to the clamping block 25 through a pipeline.

A plurality of mounting frames 41 are fixedly connected to one side of the clamping block 25 , and a massage roller 42 is rotatably connected inside the mounting frame 41 .

First, the patient lies on the mounting table 1, and then the adjusting threaded rod 22 is rotated to drive the adjusting block 23 to move, and the adjusting block 23 drives the first electric telescopic rod 24 and the clamping block 25 to move, so that the clamping block 25 moves to a suitable position according to the patient's body shape, and then the first electric telescopic rod 24 drives the clamping block 25 to move, so that the massage rollers 42 on the clamping block 25 fit on both sides of the patient, and then the pushing frame 7 is pushed by the patient's legs, and then the pushing frame 7 drives the second transmission plate 6 to move, and the second transmission plate 6 drives the second transmission rack 18 to move, at this time the spring 9 and the telescopic rod 24 are driven to move, so that the massage rollers 42 on the clamping block 25 fit on both sides of the patient, and then the pushing frame 7 is pushed by the patient's legs, and then the pushing frame 7 drives the second transmission plate 6 to move, and the second transmission plate 6 drives the second transmission rack 18 to move, and at this time the spring 9 and the telescopic rod 24 are driven to move, so that the massage rollers 42 on the clamping block 25 fit on both sides of the patient, and then the massage rollers 42 on the clamping block 25 are driven to move, and ... The retracting rod 8 starts to stretch, and at the same time, the second transmission rack 18 drives the second gear 17 and the first transmission shaft 12 to rotate, the first transmission shaft 12 drives the first gear 13 to rotate, and the first gear 13 drives the two second transmission racks 18 to slide away from each other in the transmission box 11, and at the same time, the second transmission rack 18 drives the first transmission plate 3 to move through the first connecting plate 15 and the second connecting plate 16, and the first transmission plate 3 drives the mounting block 4 to move, and the mounting block 4 drives the clamping block 25 to move through the first electric telescopic rod 24. At this time, the massage roller 42 on the clamping block 25 massages both sides of the patient to promote the two The circulation of blood on the side is promoted, the traction stretching at the back is promoted, and the comfort during traction exercise is improved. At the same time, the second electric telescopic rod 32 in the air box 31 is opened to drive the squeezing plate 33 to move. The squeezing plate 33 squeezes the air in the air box 31, and then fills the gas into the fixed air bag 36 through the hose 34 and the connecting pipe 35. When the massage roller 42 on the clamping block 25 massages the patient's waist and armpits, the fixed air bag 36 is fully inflated, so that the clamping block 25 flexibly fixes the upper and lower positions of the patient's torso. Through flexible clamping and fixing, the damage to the patient by the clamping force is reduced. At this time, the second electric telescopic rod 32 in the air box 31 drives the squeezing plate 33 to move. The squeezing plate 33 squeezes the air in the air box 31. Then, the gas is filled into the fixed air bag 36 through the hose 34 and the connecting pipe 35. When the massage roller 42 on the clamping block 25 massages the patient's waist and armpits, the fixed air bag 36 is fully inflated, so that the clamping block 25 flexibly fixes the upper and lower positions of the patient's torso. The flexible clamping fixation reduces the damage to the patient by the clamping force. A transmission plate 3 moves, and at the same time, the clamping block 25 drives the patient's torso to be pulled to both sides to achieve traction exercise for the patient's spine. Then, the second electric telescopic rod 32 drives the extrusion plate 33 to move backward, and the gas in the fixed airbag 36 is extracted, so that the clamping block 25 no longer clamps the patient. Then, the patient's legs no longer exert force, and the second transmission plate 6 and the push frame 7 return to the initial position under the elastic force of the spring 9, and at the same time drive the mounting block 4 to return to the initial position, and then repeat the above action, reciprocating, thereby achieving reciprocating traction exercise for the patient's spine, greatly improving the traction exercise effect on the patient.

Embodiment 3

On the basis of the second embodiment, please refer to Figures 1, 6 and 8, a third mounting groove 51 is opened on the top of the mounting platform 1, a support plate 52 is fixedly connected to one side of the first transmission plate 3, a third electric telescopic rod 53 is fixedly connected to the top of the support plate 52, and a mounting box 54 is fixedly connected to the top of the third electric telescopic rod 53. A plurality of second transmission shafts 55 are rotatably connected in the mounting box 54, a plurality of cams 56 are fixedly sleeved on the outer surface of the second transmission shaft 55, a transmission block 57 is slidably connected to the outer surface of the cam 56, a transmission column 58 slidably connected to the mounting box 54 is fixedly connected to the top of the transmission block 57, a knocking block 59 is fixedly connected to the top of the transmission column 58, and the outer surface of the second transmission shaft 55 is transmission-connected to a driving mechanism connected to the mounting box 54.

The driving mechanism includes a driving motor 61 fixedly connected to the installation box 54. The driving motor 61 is controlled by a PLC programming program, and can be controlled to rotate forward and reverse and rotate at an angle. The output end of the driving motor 61 is fixedly connected to one of the second transmission shafts 55 through a coupling, and a first driving gear 62 is fixedly sleeved on the outer surface of one of the second transmission shafts 55, and the outer surface of the first driving gear 62 is meshingly connected to a second driving gear 63 fixedly sleeved on the other two second transmission shafts 55.

One of the second transmission shafts 55 is driven to rotate by the driving motor 61 , and the second transmission shaft 55 drives the other two second transmission shafts 55 to rotate via the first driving gear 62 and the second driving gear 63 .

In the process of driving the first transmission plate 3 to move, the installation box 54 is driven to move upward through the third electric telescopic rod 53, so that the knocking block 59 is fitted to the middle spine position of the patient's back, and then the support plate 52, the third electric telescopic rod 53 and the installation box 54 are driven to move through the first transmission plate 3. In the process of moving, the second transmission shaft 55 is driven to rotate through the driving mechanism, and the second transmission shaft 55 drives the cam 56 to rotate. The cam 56 drives the transmission block 57 and the transmission column 58 to move up and down. Multiple transmission columns 58 drive multiple knocking blocks 59 to reciprocate and knock and massage the patient's spine position, thereby promoting blood circulation in the patient's spine position. At the same time, the patient can be knocked and relaxed on the spine position before traction, so that the patient can maintain a certain sense of relaxation, which is convenient for subsequent traction and reduces pain during traction, thereby further improving the traction training effect on the patient's spine.

A pillow block 71 is fixedly connected to the top of the mounting platform 1 , and an arc-shaped limiting groove 72 is formed on one side of the pillow block 71 .

The pillow block 71 supports the patient's head and also limits the patient's position during traction.

The working principle of the present invention is as follows: first, the patient lies on the mounting table 1, and then the adjusting threaded rod 22 is rotated, the adjusting threaded rod 22 drives the adjusting block 23 to move, the adjusting block 23 drives the first electric telescopic rod 24 and the clamping block 25 to move, so that the clamping block 25 moves to a suitable position according to the patient's body shape, and then the first electric telescopic rod 24 drives the clamping block 25 to move, so that the massage rollers 42 on the clamping block 25 fit on both sides of the patient, and then the patient's legs push the push frame 7, and then the push frame 7 drives the second transmission plate 6 to move, and the second transmission plate 6 drives the second transmission rack 18 to move, At this time, the spring 9 and the telescopic rod 8 begin to stretch, and at the same time, the second transmission rack 18 drives the second gear 17 and the first transmission shaft 12 to rotate, the first transmission shaft 12 drives the first gear 13 to rotate, and the first gear 13 drives the two second transmission racks 18 to slide away from each other in the transmission box 11. At the same time, the second transmission rack 18 drives the first transmission plate 3 to move through the first connecting plate 15 and the second connecting plate 16, and the first transmission plate 3 drives the mounting block 4 to move, and the mounting block 4 drives the clamping block 25 to move through the first electric telescopic rod 24. At this time, the massage roller 42 on the clamping block 25 massages both sides of the patient. , promoting the blood circulation on both sides, promoting the traction and stretching of the back, and improving the comfort during traction exercise. At the same time, the second electric telescopic rod 32 in the air box 31 is opened to drive the squeezing plate 33 to move. The squeezing plate 33 squeezes the air in the air box 31, and then fills the gas into the fixed air bag 36 through the hose 34 and the connecting pipe 35. When the massage roller 42 on the clamping block 25 massages the patient's waist and armpits, the fixed air bag 36 is fully inflated, so that the clamping block 25 flexibly fixes the upper and lower positions of the patient's torso. Through flexible clamping and fixing, the damage to the patient by the clamping force is reduced. At this time, continue to bring The first transmission plate 3 is driven to move, and at the same time, the clamping block 25 drives the patient's torso to be pulled and pulled to both sides, so as to realize traction exercise of the patient's spine. Then, the second electric telescopic rod 32 drives the squeezing plate 33 to move backward, and the gas in the fixed airbag 36 is extracted, so that the clamping block 25 no longer clamps the patient. Then, the patient's legs no longer exert force, and the second transmission plate 6 and the pushing frame 7 return to their initial positions under the elastic force of the spring 9, and at the same time drive the mounting block 4 to return to its initial position, and then repeat the above-mentioned action, so as to realize reciprocating traction exercise of the patient's spine, thereby greatly improving the traction exercise effect on the patient.

The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims (8)

1. A rehabilitation training device with a joint flexible traction structure, comprising a mounting platform (1), characterized in that two first mounting grooves (2) are provided on the top of the mounting platform (1), a first transmission plate (3) is slidably connected in the first mounting groove (2), a mounting block (4) is fixedly connected to the top of the first transmission plate (3), a traction fixing mechanism is arranged on the mounting block (4), a transmission mechanism is transmission-connected to one side of the first transmission plate (3), and the transmission mechanism is used to drive the first transmission plate (3) to move; A second mounting groove (5) is provided on the top of the mounting platform (1), a second transmission plate (6) is slidably connected in the second mounting groove (5), a push frame (7) is fixedly connected to the top of the second transmission plate (6), a telescopic rod (8) fixedly connected to the second mounting groove (5) is fixedly connected to one side of the second transmission plate (6), a spring (9) fixedly connected to the second mounting groove (5) is fixedly sleeved on the outer surface of the telescopic rod (8), and the second transmission plate (6) is transmission-connected to the transmission mechanism. 2. A rehabilitation training device with a joint flexible traction structure according to claim 1, characterized in that the transmission mechanism includes a transmission box (11) fixedly connected to the mounting platform (1), a first transmission shaft (12) rotatably connected in the transmission box (11), a first gear (13) fixedly sleeved on the outer surface of the first transmission shaft (12), two first transmission racks (14) meshingly connected on the outer surface of the first gear (13), a first connecting plate (15) fixedly connected to the first transmission rack (14), both sides of the first connecting plate (15) are fixedly connected to a second connecting plate (16) fixedly connected to the first transmission plate (3), a second gear (17) fixedly sleeved on the outer surface of the first transmission shaft (12), and the outer surface of the second gear (17) meshingly connected to a second transmission rack (18) fixedly connected to the second transmission plate (6). 3. A rehabilitation training device with a joint flexible traction structure according to claim 1, characterized in that the traction fixing mechanism includes an adjustment groove (21) opened on the mounting block (4), an adjustment threaded rod (22) is rotatably connected in the adjustment groove (21), the outer surface of the adjustment threaded rod (22) is threadedly matched with an adjustment block (23) slidably connected to the adjustment groove (21), one side of the adjustment block (23) is fixedly connected to a first electric telescopic rod (24), one end of the first electric telescopic rod (24) is fixedly connected to a clamping block (25), and an extrusion fixing mechanism connected to the clamping block (25) is provided on the mounting block (4). 4. A rehabilitation training device with a joint flexible traction structure according to claim 3, characterized in that the extrusion and fixing mechanism includes an air box (31) fixedly connected to the mounting block (4), a second electric telescopic rod (32) fixedly connected inside the air box (31), one end of the second electric telescopic rod (32) fixedly connected to an extrusion plate (33) slidably connected to the air box (31), one side of the air box (31) fixedly connected to a hose (34), one end of the hose (34) fixedly connected to a connecting pipe (35) fixedly connected to the clamping block (25), and the outer surface of the connecting pipe (35) fixedly connected to a fixed air bag (36) fixedly connected to the clamping block (25) through a pipeline. 5. A rehabilitation training device with a joint flexible traction structure according to claim 3, characterized in that a plurality of mounting frames (41) are fixedly connected to one side of the clamping block (25), and a massage roller (42) is rotatably connected inside the mounting frame (41). 6. A rehabilitation training device with a joint flexible traction structure according to claim 1, characterized in that a third mounting groove (51) is opened on the top of the mounting platform (1), a support plate (52) is fixedly connected to one side of the first transmission plate (3), a third electric telescopic rod (53) is fixedly connected to the top of the support plate (52), a mounting box (54) is fixedly connected to the top of the third electric telescopic rod (53), a plurality of second transmission shafts (55) are rotatably connected in the mounting box (54), a plurality of cams (56) are fixedly sleeved on the outer surface of the second transmission shaft (55), a transmission block (57) is slidably connected to the outer surface of the cam (56), a transmission column (58) slidably connected to the mounting box (54) is fixedly connected to the top of the transmission block (57), a knocking block (59) is fixedly connected to the top of the transmission column (58), and a driving mechanism connected to the mounting box (54) is transmission-connected to the outer surface of the second transmission shaft (55). 7. A rehabilitation training device with a joint flexible traction structure according to claim 6, characterized in that the driving mechanism includes a driving motor (61) fixedly connected to the mounting box (54), the output end of the driving motor (61) is fixedly connected to one of the second transmission shafts (55) through a coupling, the outer surface of one of the second transmission shafts (55) is fixedly sleeved with a first driving gear (62), and the outer surface of the first driving gear (62) is meshingly connected with a second driving gear (63) fixedly sleeved with the other two second transmission shafts (55). 8. A rehabilitation training device with a joint flexible traction structure according to claim 1, characterized in that a pillow block (71) is fixedly connected to the top of the mounting platform (1), and an arc-shaped limiting groove (72) is opened on one side of the pillow block (71).