CN108042314B

CN108042314B - Multi-angle training thoracic surgery rehabilitation instrument

Info

Publication number: CN108042314B
Application number: CN201810056452.XA
Authority: CN
Inventors: 夏艳梅; 兰玲
Original assignee: Shanxi Bethune Hospital
Current assignee: Shanxi Bethune Hospital
Priority date: 2018-01-21
Filing date: 2018-01-21
Publication date: 2020-10-27
Anticipated expiration: 2038-01-21
Also published as: CN108042314A

Abstract

A multi-angle training thoracic surgery rehabilitation instrument effectively solves the problems of short service life, single training, poor training effect and the like of the existing equipment; the technical scheme is that the seat chair comprises a base, wherein a seat is fixed on the right side above the base, a telescopic support column is fixed on the left side above the base, a telescopic operating arm is rotatably connected above the support column, and two rocker arms are symmetrically arranged at the end part of the operating arm; the device has the advantages of ingenious and reasonable structure, convenience in use, capability of greatly increasing the recovery speed of a user through training, simple structure, easiness in operation, capability of automatically controlling the training intensity, capability of immediately powering off in overload and capability of avoiding secondary damage; the operating arm can rotate freely, and training can be performed without sitting on the seat; mechanical transmission subassembly long service life, the cost that can very big reduction input is fit for using widely on a large scale.

Description

Multi-angle training thoracic surgery rehabilitation instrument

Technical Field

The invention relates to the technical field of medical instruments, in particular to a multi-angle training thoracic surgery rehabilitation instrument.

Background

The thoracic surgery usually destroys the muscle and nerve of the upper limb, so the patient in the thoracic surgery needs to carry out rehabilitation training, the existing rehabilitation training equipment is less, the price is high, the patient is not suitable for being used in a common hospital, and the existing rehabilitation training equipment can not adjust the training load according to the specific situation of the patient, so the pain of the patient is increased.

In the patent with the application number 201420591604.3, a rehabilitation device for thoracic surgery is disclosed, which comprises a base, and is characterized in that universal wheels are arranged at four corners below the base, brake locking devices are arranged on the universal wheels, a stand column is arranged at the left side above the base, a sliding shaft sleeve is arranged on the stand column, a fastening bolt is arranged on the sliding shaft sleeve, an electric telescopic arm is arranged at the other side of the sliding shaft sleeve, a friction resistance device is arranged at one end of the electric telescopic arm, a mounting seat is arranged on the friction resistance device, a through hole is arranged in the mounting seat, rolling bearings are arranged at two ends of the through hole, a rotating shaft is arranged at the circle center of each rolling bearing, a friction plate is arranged at the upper part of each rotating shaft, a universal shaft coupler is arranged above each friction plate, a resistance adjusting bolt is arranged above each universal shaft coupler, a return spring is, be equipped with anti-skidding screw thread on the rubber leather sheath, the stand left side is equipped with the motor on the base, the stand right side is equipped with pneumatic telescoping device, be equipped with pneumatic pedal on the pneumatic telescoping device, the pneumatic telescoping device top is equipped with the seat, be equipped with the back on the seat, the back top is equipped with the headrest, the seat both sides are equipped with the guardrail, be equipped with electronic flexible arm motion control panel on the guardrail of right side, be equipped with the extension button on the electronic flexible arm motion control panel, extension button next door is equipped with the shrink button, the left side guardrail is equipped with health function monitoring panel, seat and back junction are equipped with the activity pivot, activity pivot.

There are a number of problems with this patent: 1) the electric telescopic arm is fixed on the upright post by the sliding shaft sleeve, and after long-time use and abrasion, the gap between the sliding shaft sleeve and the upright post is increased, so that the electric telescopic arm possibly slides off the upright post and cannot be adjusted in height upwards; the telescopic arm is electric, the service life of an electric device is far shorter than that of a mechanical part, and the cost of the electric device is higher, so that the electric device is not beneficial to vigorous popularization; 3) the rocker arm is in a fixed direction, and a user can only train a certain position, so that the recovery assistance of the user is limited.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention aims to provide the multi-angle training thoracic surgery rehabilitation instrument, which effectively solves the problems of short service life, single training, poor training effect and the like of the conventional equipment.

The technical scheme is that the seat chair comprises a base, wherein a seat is fixed on the right side above the base, a telescopic support column is fixed on the left side above the base, a telescopic operating arm is rotatably connected above the support column, and two rocker arms are symmetrically arranged at the end part of the operating arm;

the supporting column comprises a supporting column fixedly mounted on the base, a connecting block is arranged above the supporting column, a first positioning telescopic device is arranged between the supporting column and the connecting block, the first positioning telescopic device comprises a plurality of first positioning rods which extend out of the lower portion of the connecting block and are inserted into the supporting column, the first positioning rods can slide and stretch in the supporting column, a first connecting sleeve is rotatably arranged below the connecting block, threads are arranged outside the first connecting sleeve, a first connecting hole in threaded connection with the first connecting sleeve is formed in the supporting column, and the first connecting sleeve rotates to adjust the height of the connecting block; the first connecting sleeve is connected to the connecting block in a rotating mode through a first bearing, the first connecting sleeve is a hollow sleeve, a first gear ring is arranged on one side, located in the connecting block, in the first connecting sleeve, a first rotating rod is arranged in the connecting block in a rotating mode, a first gear meshed with the first gear ring is fixed to one end, located in the connecting block, of the first rotating rod, and a first handle extending out of the connecting block is fixed to the other end of the first rotating rod;

the operating arm comprises a fixed arm which is rotatably connected with the connecting block, an extension arm is arranged on one side of the fixed arm, a second positioning telescopic device is arranged between the fixed arm and the extension arm, and the second positioning telescopic device has the same structure as the first positioning telescopic device;

the fixing arm is rotatably connected with the connecting block through a second bearing, a fixing ring extending into the connecting block is arranged below the fixing arm, a plurality of fixing holes are formed in the periphery of the fixing ring, fixing rods are arranged on the side wall of the connecting block, and the end parts of the fixing rods are inserted into the fixing holes to form a structure that the fixing arm does not rotate any more;

a motor is arranged in the supporting column, a first polygon prism is coaxially connected with an output shaft of the motor, a first rotating shaft sleeved with the first polygon prism is rotatably arranged in the connecting block, a second rotating shaft is rotatably arranged in the fixed arm, the second rotating shaft is connected with the first rotating shaft through a first bevel gear group, a second polygon prism capable of extending into the second rotating shaft is rotatably arranged in the extension arm, a third rotating shaft connected with the rocker arm is arranged in the extension arm, and the third rotating shaft is connected with the second polygon prism through a second bevel gear group;

the base is provided with a foot switch for controlling the motor.

The device has the advantages of ingenious and reasonable structure, convenience in use, capability of greatly increasing the recovery speed of a user through training, simple structure, easiness in operation, capability of automatically controlling the training intensity, capability of immediately powering off in overload and capability of avoiding secondary damage; the operating arm can rotate freely, and training can be performed without sitting on the seat; mechanical transmission subassembly long service life, the cost that can very big reduction input is fit for using widely on a large scale.

Drawings

Fig. 1 is a schematic front view of a first embodiment of the present invention.

Fig. 2 is a schematic front sectional view according to a first embodiment of the present invention.

Fig. 3 is an enlarged sectional view of the support column and the operation arm in the present invention.

FIG. 4 is a schematic cross-sectional view of A-A of FIG. 1 according to the present invention.

FIG. 5 is a schematic cross-sectional view of B-B of FIG. 2 in accordance with the present invention.

FIG. 6 is a schematic cross-sectional view of C-C of FIG. 2 of the present invention.

Fig. 7 is a schematic cross-sectional view of D-D of fig. 2 of the present invention.

Fig. 8 is an enlarged view of E of fig. 3 of the present invention.

Fig. 9 is a perspective view of a fixing arm according to the present invention.

Fig. 10 is a perspective view of an extension arm according to the present invention.

Fig. 11 is an enlarged view of F of fig. 3 of the present invention.

Fig. 12 is a schematic front view of a second embodiment of the present invention.

Detailed Description

The following description of the present invention will be made in further detail with reference to the accompanying drawings 1 to 12.

The first embodiment is as follows:

as can be seen from fig. 1 to 11, the present invention comprises a base 1, a seat 2 is fixed on the right side above the base 1, the height of the base 1 is adjustable, a user can select a proper height of the seat 2 according to personal conditions, therefore, the chair can be in a more comfortable sitting posture during training, the telescopic supporting column 3 is fixed on the left side above the base 1, the operating arm 4 is in a height convenient for use after the height of the supporting column 3 is adjusted, a user can conveniently train, the telescopic operating arm 4 is rotatably connected above the supporting column 3, the user can adjust the position of the operating arm 4 and the extending length of the operating arm 4 according to the self condition, training is carried out at the most appropriate position so that the training is more reasonable, the two rocker arms 5 are symmetrically arranged at the end parts of the operating arms 4, a user holds the rocker arms 5 for training, and the equipment drives the two arms of the user to carry out passive training.

The supporting column 3 comprises a supporting column 6 fixedly arranged on the base 1, a connecting block 7 is arranged above the supporting column 6, a first positioning telescopic device is arranged between the supporting column 6 and the connecting block 7, the first positioning telescopic device comprises a plurality of first positioning rods 8 extending below the connecting block 7 and inserted into the supporting column 6, the first positioning rods 8 can slide and stretch in the supporting column 6, when the first positioning rods 8 are inserted into the supporting column 6, the supporting column 6 and the connecting block 7 can only vertically slide but can not rotate, a first connecting sleeve 9 is rotatably arranged below the connecting block 7, threads are arranged outside the first connecting sleeve 9, a first connecting hole 10 in threaded connection with the first connecting sleeve 9 is arranged in the supporting column 6, the first connecting sleeve 9 is rotated to adjust the height of the connecting block 7, the first connecting sleeve 9 is rotated clockwise, the first connecting sleeve 9 is screwed into the first connecting hole 10, the distance between the connecting block 7 and the supporting column 6 is reduced, therefore, the height of the connecting block 7 is reduced, on the contrary, the first connecting sleeve 9 is rotated anticlockwise, the height of the connecting block 7 is increased, and after the connecting block is adjusted to a proper position, the first connecting sleeve 9 stops rotating, and the height of the connecting block 7 is fixed due to the self-locking performance of the threads; first adapter sleeve 9 rotates through first bearing 11 and connects on connecting block 7, first adapter sleeve 9 is hollow sleeve, it is equipped with first ring gear 12 to lie in connecting block 7 one side in first adapter sleeve 9, the internal rotation of connecting block 7 is provided with first rotation pole 13, first rotation pole 13 lies in connecting block 7 one end and is fixed with the first gear 14 with first ring gear 12 meshing, first rotation pole 13 other end is fixed with exposes the first handle 15 outside connecting block 7, when adjusting the height of connecting block 7, rotate first handle 15, drive first rotation pole 13 and make first gear 14 rotate, it produces the rotation to make first adapter sleeve 9 produce through first ring gear 12 again.

The operating arm 4 comprises a fixed arm 16 which is rotatably connected to the connecting block 7, an extension arm 17 is arranged on one side of the fixed arm 16, a second positioning telescopic device is arranged between the fixed arm 16 and the extension arm 17, the second positioning telescopic device comprises a second connecting sleeve 32 which is rotatably connected to the fixed arm 16, threads are arranged outside the second connecting sleeve 32, a second connecting hole 33 which is in threaded connection with the second connecting sleeve 32 is arranged in the extension arm 17, a plurality of second positioning rods 34 are arranged at the right end of the fixed arm 16, and the second positioning rods 34 can slide in the extension arm 17; the second connecting sleeve 32 is rotatably connected to the fixing arm 16 through a third bearing 35, the second connecting sleeve 32 is a hollow sleeve, a second gear ring 36 is arranged on one side of the second connecting sleeve 32, which is located in the fixing arm 16, a second rotating rod 37 is rotatably arranged in the connecting block 7, a fourth gear 38 meshed with the second gear ring 36 is fixed at one end of the second rotating rod 37, which is located in the fixing arm 16, the other end of the second rotating rod 37 extends out of the fixing arm 16 and is provided with a second handle 39, and the telescopic and positioning principles of the operating arm 4 are the same as those of the supporting column 3.

The fixing arm 16 is rotatably connected with the connecting block 7 through a second bearing 18, a fixing ring 19 extending into the connecting block 7 is arranged below the fixing arm 16, a plurality of fixing holes 20 are formed in the periphery of the fixing ring 19, a fixing rod 21 is arranged on the side wall of the connecting block 7, when the operating arm 4 needs to be rotated, the fixing rod 21 is pulled outwards to enable the fixing rod 21 to be separated from the fixing holes 20, namely the fixing arm 16 can rotate on the connecting block 7, and after the operating arm 4 rotates to a proper position, the fixing rod 21 is inserted into the fixing holes 20 to enable the position of the fixing ring 19 to be fixed, namely the fixing arm 16 does not rotate; since the user is returned to use after the thoracic surgery, the legs of the user are generally not affected, and some users do not like to sit on the seat 2 for a long time to train, the operation arm 4 is rotatably provided for those who wish to train while standing.

Dead lever 21 telescopic installs on connecting block 7 lateral wall, be equipped with baffle 40 on the dead lever 21, the spring 41 that is located between baffle 40 and connecting block 7 has been cup jointed on the dead lever 21, spring 41 presses dead lever 21 to fixed orifices 20, when wanting to rotate operation arm 4, need pull out dead lever 21 earlier, make dead lever 21 tip break away from in the fixed orifices 20, operation arm 4 can rotate this moment, when needs are continuously rotated operation arm 4, can block a key or paper group between dead lever 21 tip and connecting block 7, make dead lever 21 can not insert in the fixed orifices 20 under spring 41's effect, operation arm 4 can the free rotation this moment.

A motor 22 is arranged in the supporting column 3, an output shaft of the motor 22 is coaxially connected with a first polygon prism 23, a first rotating shaft 24 which is sleeved with the first polygon prism 23 is rotationally arranged in the connecting block 7, a polygon hole corresponding to the first polygon prism 23 is arranged in the first rotating shaft 24, the first rotating shaft 24 and the first polygon prism 23 can simultaneously rotate and can also generate telescopic sliding, and when the height of the connecting block 7 is adjusted, the first polygon prism 23 and the first rotating shaft 24 are matched in a telescopic mode, so that normal transmission of the connecting block is guaranteed; a second rotating shaft 25 is rotatably arranged in the fixed arm 16, the second rotating shaft 25 is connected with the first rotating shaft 24 through a first bevel gear set, a second polygonal column 26 capable of extending into the second rotating shaft 25 is rotatably arranged in the extension arm 17, a polygonal hole corresponding to the second polygonal column 26 is arranged in the second rotating shaft 25, the second rotating shaft 25 and the second polygonal column 26 can simultaneously rotate and can also slide in a telescopic manner, a third rotating shaft 27 connected with the rocker arm 5 is arranged in the extension arm 17, the third rotating shaft 27 is connected with the second polygonal column 26 through a second bevel gear set, the motor 22 rotates to drive the first polygonal column 23 to rotate, the first polygonal column 24 and the first bevel gear set are transmitted to the second rotating shaft 25, the second polygonal column 26 and the second bevel gear set are transmitted to the third rotating shaft 27, and the third rotating shaft 27 drives the rocker arm 5 to rotate, so as to perform passive training on a user.

This device can select to set for in advance training intensity and process control intensity two kinds of modes: when sitting for training, because the feet of the user can be vacated for operation, the base 1 is provided with two foot switches 28 for controlling the motor 22, the left foot switch and the right foot switch 28 are respectively provided with different foot switches 28, the motor 22 can be started only when the two feet step on the foot switches 28 at the same time, otherwise, the motor 22 can not be started, and the stepping degree can control the rotating speed of the motor 22, thereby controlling the rotating speed of the rocker arm 5, namely, controlling the training intensity of the user; when the user exercises in standing position, the foot needs to be shaped into a body, and the motor 22 cannot be controlled by stepping on the foot switch 28, so that program control is adopted. During training, the motor 22 adopts the slow motor 22, and when the rotating speed of the motor 22 reaches the maximum, the rocker arm 5 still rotates at a slow speed, so that the problem that the arm of a user cannot catch up with the motor at a slow rotating speed to cause secondary damage is avoided.

A plurality of universal wheels 29 are arranged below the base 1, the device can be moved to a required position for training, and the device can be placed at the corner for storage after training.

The seat 2 is pneumatically adjusted, and the seat 2 is quickly and safely adjusted in a starting mode and is convenient to use.

The first and second polygonal prisms 23 and 26 are regular polygonal prisms such that the polygonal prisms and the rotation shaft slide relative to each other while power transmission is ensured.

A plurality of first locating holes 42 have been seted up on pillar 6, connecting block 7 slides from top to bottom on pillar 6 when first locating rod 8 inserts in first locating hole 42, and first locating hole 42 degree of depth is greater than the length of first locating rod 8, and when connecting block 7 reduced to minimum height, first locating rod 8 got into first locating hole 42 completely in, can not influence the regulation of connecting block 7 height.

8 tip of first locating lever is equipped with the end cap, and first locating hole 42 oral area size is less than the end cap size, and when connecting block 7 was adjusted to the maximum height, first locating lever 8 can not break away from first locating hole 42 to prevent connecting block 7 and pillar 6's separation, thereby cause the damage of equipment, and then influence going on of training.

The extension arm 17 is provided with a plurality of second positioning holes 43 towards one side of the fixed arm 16, when the second positioning rod 34 is inserted into the second positioning holes 43, the extension arm 17 slides left and right on the fixed arm 16, the depth of the second positioning holes 43 is larger than the length of the second positioning rod 34, when the extension arm 17 contracts to the shortest distance, the second positioning rod 34 completely enters the second positioning holes 43, and the length adjustment of the extension arm 17 cannot be influenced.

The end of the second positioning rod 34 is provided with a stop 44, the size of the mouth of the second positioning hole 43 is smaller than the size of the stop 44, when the extension arm 17 is adjusted to be longest, the second positioning rod 34 cannot be separated from the second positioning hole 43, so that the extension arm 17 is prevented from being separated from the fixing plate, the damage of equipment is avoided, and the training is further influenced.

The first bevel gear set comprises a first bevel gear 45 fixed at the end of the first rotating shaft 24 and a second bevel gear 46 fixed at the end of the second rotating shaft 25, and the first bevel gear 45 and the second bevel gear 46 are meshed.

The second bevel gear set comprises a third bevel gear 47 fixed at the end of the second polygonal column 26 and a fourth bevel gear 48 coaxially fixed on the rotating shaft of the rocker arm 5, and the third bevel gear 47 is meshed with the fourth bevel gear 48.

When the invention is used, the water-saving agent is added,

the user selects whether to sit or not according to the self condition, the height of the seat 2 is adjusted firstly during the sitting training, then the first handle 15 is rotated to adjust the height of the supporting column 3, finally the second handle 39 is rotated to adjust the length of the operating arm 4, after the adjustment is finished, the user sits on the seat 2, holds the rocker arm 5 for training, at the moment, the user treads on the foot switch 28 with two feet simultaneously, the motor 22 is started, and the motor 22 drives the rocker arm 5 to rotate to train the user; when the user stands for training, the step of adjusting the seat 2 is skipped, and the subsequent steps are the same.

During the sitting posture training, the user can control the rotating speed of the rocker arm 5 by the degree of treading the foot switch 28, when the treading force is larger, the rotating speed of the rocker arm 5 is faster, and when the rotating speed of the rocker arm 5 exceeds the bearing range of the user, the user can quickly cut off the power of the motor 22 by lifting the two feet so as to prevent the injury to the user.

Compared with the prior art, the positioning telescopic devices of the support column 3 and the operation arm 4 are operated manually, compared with the mechanical operation, the manual operation is more reasonable and more convenient to adjust, when the adjustment is needed, the handle is rotated, the mechanical transmission mode is more accurate, after the device is used for a long time, only a lubricant needs to be added, if the device is operated by the mechanical operation, the circuit can be in a problem after the device is used for a long time, the adjustment is failed, the height and the length of the training device can not be adjusted, a user can only train at a difficult position, the training effect is greatly reduced due to the unsmooth position, the poor position can cause other damages to the user, and the recovery of the body is not facilitated.

The strength of the training can be adjusted in the training process, the rotating speed of the rocker arm 5 can be adjusted without separating the two hands of a user from the rocker arm 5, and the power can be cut off instantly when the strength cannot be borne, so that the safety of the user is protected, and the user is prevented from being injured again in the training process.

The training device can be used for training, can have a plurality of different training positions, is more flexible compared with the existing equipment, and can more mobilize the participation of a user, so that the physical function of the user can be quickly recovered in the using process.

Example two:

on the basis of the first embodiment, a locking nut 49 is arranged at the end of the second positioning rod 34, a plurality of locking heads 50 corresponding to the locking nut 49 are arranged at the right end of the fixed arm 16, the locking nut 49 and the locking heads 50 are matched to form a structure that the second positioning rod 34 is detachably connected with the fixed plate, the extending arm 17 is detachably connected with the fixed arm 16, and the rotating angle of the extending arm 17 and the fixed arm 16 along the axis direction can be adjusted by adjusting the matching relation between the locking nut 49 and the locking heads 50, so that other directions except the vertical direction can be trained.

When the invention is used, the water-saving agent is added,

under normal conditions, the rotation plane of the rocker arm 5 is perpendicular to the ground, that is, under the condition described in the first embodiment, after training is completed under the state, the matching relation between the locking nut 49 and the locking head 50 can be adjusted, that is, the extension arm 17 rotates along the axis direction thereof, so that the rotation plane of the rocker arm 5 and the ground generate an inclination angle, and at the moment, a user can exercise more muscle tissues during training, and the recovery of the physical function of the user is accelerated.

Through the quantity of the locking head 50 and the second locating lever 34 that set up, the range of regulation that produces the inclination when can change rocking arm 5 and rotate trains the user on the plane of difference, and the training effect that can reach is also different, and more reasonable training can accelerate the recovery rate of user's arm.

When the user stands, the user can rotate around the supporting column 3 for training once by adjusting the angle of the rocker arm 5, hands and feet can be trained synchronously, and the phenomenon of leg numbness and the like after the training is finished can not be generated.

Claims

1. A multi-angle training thoracic surgery rehabilitation instrument comprises a base (1), and is characterized in that a seat (2) is fixed on the right side above the base (1), a telescopic support column (3) is fixed on the left side above the base (1), a telescopic operating arm (4) is rotatably connected above the support column (3), and two rocker arms (5) are symmetrically arranged at the end part of the operating arm (4); the supporting column (3) comprises a supporting column (6) fixedly mounted on the base (1), a connecting block (7) is arranged above the supporting column (6), a first positioning telescopic device is arranged between the supporting column (6) and the connecting block (7), the first positioning telescopic device comprises a plurality of first positioning rods (8) which are inserted into the supporting column (6) and extend out of the lower portion of the connecting block (7), the first positioning rods (8) can slide and stretch in the supporting column (6), a first connecting sleeve (9) is rotatably arranged below the connecting block (7), threads are arranged outside the first connecting sleeve (9), a first connecting hole (10) which is in threaded connection with the first connecting sleeve (9) is formed in the supporting column (6), and the first connecting sleeve (9) rotates to adjust the height of the connecting block (7); the first connecting sleeve (9) is rotatably connected to the connecting block (7) through a first bearing (11), the first connecting sleeve (9) is a hollow sleeve, a first gear ring (12) is arranged on one side, located in the connecting block (7), in the first connecting sleeve (9), a first rotating rod (13) is rotatably arranged in the connecting block (7), a first gear (14) meshed with the first gear ring (12) is fixed at one end, located in the connecting block (7), of the first rotating rod (13), and a first handle (15) exposed out of the connecting block (7) is fixed at the other end of the first rotating rod (13); the operating arm (4) comprises a fixed arm (16) which is rotatably connected with the connecting block (7), one side of the fixed arm (16) is provided with an extension arm (17), a second positioning telescopic device is arranged between the fixed arm (16) and the extension arm (17), and the second positioning telescopic device has the same structure as the first positioning telescopic device; the fixing arm (16) is rotatably connected with the connecting block (7) through a second bearing (18), a fixing ring (19) extending into the connecting block (7) is arranged below the fixing arm (16), a plurality of fixing holes (20) are formed in the periphery of the fixing ring (19), a fixing rod (21) is arranged on the side wall of the connecting block (7), and the end part of the fixing rod (21) is inserted into the fixing holes (20) to form a structure that the fixing arm (16) does not rotate any more; a motor (22) is arranged in the supporting column (3), an output shaft of the motor (22) is coaxially connected with a first polygon prism (23), a first rotating shaft (24) which is sleeved with the first polygon prism (23) is rotatably arranged in the connecting block (7), a second rotating shaft (25) is rotatably arranged in the fixing arm (16), the second rotating shaft (25) is connected with the first rotating shaft (24) through a first bevel gear set, a second polygon prism (26) which can extend into the second rotating shaft (25) is rotatably arranged in the extension arm (17), a third rotating shaft (27) which is connected with the rocker arm (5) is arranged in the extension arm (17), and the third rotating shaft (27) is connected with the second polygon prism (26) through a second bevel gear set; a foot switch (28) for controlling the motor (22) is arranged on the base (1);

during sitting posture training, a user can control the rotating speed of the rocker arm (5) by stepping on the pedal switch (28), when the stepping force is larger, the rotating speed of the rocker arm (5) is faster, and when the rotating speed of the rocker arm (5) exceeds the bearing range of the user, the user can quickly cut off the power of the motor (22) by lifting the two feet so as to prevent injury to the user;

the second positioning telescopic device comprises a second connecting sleeve (32) which is rotatably connected to the fixing arm (16), threads are arranged outside the second connecting sleeve (32), a second connecting hole (33) which is in threaded connection with the second connecting sleeve (32) is arranged in the extension arm (17), a plurality of second positioning rods (34) are arranged on the fixing arm (16), and the second positioning rods (34) can slide in the extension arm (17); the second connecting sleeve (32) is rotatably connected to the fixed arm (16) through a third bearing (35), the second connecting sleeve (32) is a hollow sleeve, a second gear ring (36) is arranged on one side, located in the fixed arm (16), in the second connecting sleeve (32), a second rotating rod (37) is rotatably arranged in the fixed arm (16), a fourth gear (38) meshed with the second gear ring (36) is fixed at one end, located in the fixed arm (16), of the second rotating rod (37), and a second handle (39) is arranged at the other end of the second rotating rod (37) and extends out of the fixed arm (16);

the fixing rod (21) is telescopically arranged on the side wall of the connecting block (7), a baffle (40) is arranged on the fixing rod (21), a spring (41) positioned between the baffle (40) and the connecting block (7) is sleeved on the fixing rod (21), and the spring (41) presses the fixing rod (21) to the fixing hole (20);

a plurality of first positioning holes (42) are formed in the support column (6), and the connecting block (7) slides up and down on the support column (6) when the first positioning rod (8) is inserted into the first positioning holes (42);

a plurality of second positioning holes (43) are formed in one side, facing the fixed arm (16), of the extension arm (17), and the extension arm (17) slides left and right on the fixed arm (16) when the second positioning rod (34) is inserted into the second positioning holes (43);

a second gear (30) is fixed at the end part of the first rotating rod (13), a third gear (31) meshed with the second gear (30) is coaxially fixed on the first handle (15), and the first rotating rod (13) is driven to rotate by rotating the first handle (15);

the end part of the second positioning rod (34) is provided with a stop block (44), and the size of the opening part of the second positioning hole (43) is smaller than that of the stop block (44).

2. The multi-angle training thoracic surgical rehabilitation instrument of claim 1, wherein the first bevel gear set comprises a first bevel gear (45) fixed at an end of the first rotating shaft (24) and a second bevel gear (46) fixed at an end of the second rotating shaft (25), the first bevel gear (45) and the second bevel gear (46) are engaged.

3. The multi-angle training thoracic surgical rehabilitation instrument of claim 1, wherein the second bevel gear set comprises a third bevel gear (47) fixed at the end of the second polygonal column (26) and a fourth bevel gear (48) coaxially fixed on the rotation shaft of the swing arm (5), and the third bevel gear (47) and the fourth bevel gear (48) are engaged.

4. The multi-angle training thoracic surgery rehabilitation instrument as claimed in claim 1, wherein a locking nut (49) is disposed at an end of the second positioning rod (34), a plurality of locking heads (50) corresponding to the locking nut (49) are disposed on the fixed arm (16), and the locking nut (49) and the locking heads (50) cooperate to form a structure for detachably connecting the second positioning rod (34) and the fixed arm (16).