A reconfigurable waist muscle training device

Abstract

The present invention relates to a reconfigurable waist muscle training device, which can perform muscle training for three waist movements. The modules required for waist flexion and extension and lateral flexion muscle training include a training seat unit, a drive unit, a waist and back fixing unit, a side fixing unit and a base unit. For waist rotation muscle training, the waist and back fixing unit or the side fixing unit needs to be replaced with a shoulder fixing unit, and a transmission unit is added. The training seat unit includes a training seat, a load-bearing column, a rotating joint and a rotating table. The drive unit includes a power head, a U-shaped frame and a lifting column. The transmission unit includes a synchronous belt and a pulley. The base unit includes a guide rail slider, a slider mounting plate and a base plate. The mutual transmission of human-machine force is achieved through the waist and back fixing unit, the side fixing unit or the shoulder fixing unit. The present invention can meet the patient's needs for different waist movement muscle training, has a simple structure, and can achieve waist flexion and extension, lateral flexion and rotation muscle training functions.

Description

Technical Field

[0001] The present invention relates to a muscle strength training device for waist flexion, extension, lateral flexion and rotation, and in particular,

[0002] The invention relates to a muscle strength training device which realizes flexion and extension, lateral flexion functions by using a power head and realizes waist rotation function with the assistance of a synchronous belt. Background Art

[0003] Healthy muscles are the basis for maintaining the normal functioning of the body's motor system. Muscle atrophy and reduced muscle strength have a huge impact on the ability to take care of oneself in daily life. As the middle part of the body, the waist muscle strength plays an important supporting role for the human body. The waist muscles are also an important muscle group for completing various daily activities and exercises, maintaining body balance and joint protection during activities. Strength training for the waist muscles can effectively exercise and maintain the strength of the waist muscles, prevent muscle atrophy, improve the stability of the waist muscles and the flexibility and coordination of the waist joints, and effectively prevent and delay the occurrence of waist diseases and injuries caused by aging.

[0004] The reconfigurable waist muscle strength training device can effectively train the waist flexion, extension, lateral flexion and rotation movements. The device has a simple structure, simple control, and is comfortable to wear. It can realize a variety of training modes to meet the training needs of different groups of people. Summary of the invention

[0005] The object of the present invention is to provide a reconfigurable muscle strength training device for waist flexion and extension, lateral flexion and rotation movements to solve the above problems.

[0006] The example of the present invention provides a reconfigurable muscle training device for waist flexion and extension, lateral flexion and rotation, characterized in that the modules required for the muscle training device to perform waist flexion and extension muscle training include a training seat unit, a drive unit, a waist and back fixing unit and a base unit; the modules required for the muscle training device to perform waist lateral flexion muscle training include a training seat unit, a drive unit, a side fixing unit and a base unit;

[0007] The modules required for the muscle training device to perform waist rotation muscle training include a training seat unit, a driving unit, a transmission unit, a shoulder fixing unit and a base unit.

[0008] The drive unit can adjust the height and the angle in the vertical plane to provide a stable output torque for muscle strength training; there are armrests on both sides of the training seat to ensure training safety; a rotating joint is installed in the middle of the load-bearing column, the upper side of the rotating joint is used to fix the shoulder fixing unit, and the lower side of the rotating joint is used to fix the transmission unit;

[0009] The transmission unit included in the waist rotation muscle strength training function adopts the transmission method of synchronous belt for power transmission, and the output shaft of the power head rotates synchronously with the rotating joint of the training seat unit; the rotating joint is fixed to the load-bearing column through a tapered roller bearing; the rotation center of the waist rotation movement is aligned with the center of the load-bearing column; the front end of the shoulder fixing unit is fixed to the human shoulder, and the end is fixed to the rotating bracket; the waist and back fixing unit and the side fixing unit during waist flexion and extension and lateral flexion muscle strength training are fixed to the clamping device; the clamping device is keyed to the output shaft of the power head; the ends of the waist and back fixing unit and the side fixing unit are connected to the human body; the base unit is used to support and fix the drive unit and the training seat unit, and the lifting column of the drive unit is fixed to the base through a slider mounting plate, so that the drive unit can be freely adjusted along the slide rail to adjust the distance between the power training device and the training seat, and the synchronous belt can be removed from the output shaft of the drive unit when the distance is reduced.

[0010] Furthermore, the training seat unit includes a training seat, a rotating table, a rotating bracket, a rotating joint, and a load-bearing column; the training seat is composed of a chair base, a chair seat cushion, a chair backrest, and a chair back cushion; the load-bearing column chassis is fixed to the base unit by screws; the rotating table is fixed to the lower surface of the training seat by screws, and the angle of the seat can be adjusted in the horizontal plane; the rotating joint is connected and fixed to the load-bearing column by a bearing, and can rotate around the central axis of the load-bearing column; the rotating bracket is fixed to the upper side of the rotating joint by a spline connection; the pulley of the transmission unit is fixed to the lower side of the rotating joint by a key connection; the chair backrest is connected to the chair base; the chair seat cushion covers the surface of the chair base; the chair back cushion covers the surface of the chair backrest.

[0011] Furthermore, the transmission unit of the waist rotation exercise muscle strength training device includes a synchronous belt and a pair of pulleys; one of the pulleys is fixedly connected to the lower side of the rotating joint through a key connection; the other pulley is connected to the output shaft of the power head through a key connection; the synchronous belt and the pulley play the role of transmitting power, and because the rotation center of the rotating joint is aligned with the center line of the load-bearing column, the power of the driving unit can be used to drive the rotating joint to rotate around the load-bearing column through the synchronous belt and the pulley, thereby realizing the waist rotation muscle strength training function.

[0012] Furthermore, the waist and back fixing unit of the waist flexion and extension exercise muscle strength training device includes a T-shaped square rod, a locking sleeve, a locking clamp, a clamp rod, and a square sponge pad; the T-shaped square rod is connected and fixed to the output shaft of the driving unit through a clamping device; the locking clamp is connected and fixed to the T-shaped square rod through a locking sleeve, and the locking sleeve is fixed to both sides of the T-shaped square rod through bolts, and is fixed to the locking clamp through screws; the clamp rod is fixed to the locking clamp; the square sponge pad is fixed to the clamp rod to improve training comfort.

[0013] Furthermore, the side fixing unit of the lumbar lateral flexion exercise muscle strength training device includes a vertical rod, a T-shaped cross bar, a locking sleeve, a waist clamp rod, a grip, a grip optical axis, a grip cylindrical sponge, and a back sponge pad; the vertical rod is connected and fixed to the output shaft of the driving unit through a clamping device; the T-shaped cross bar is connected and fixed to the vertical rod through a locking sleeve bolt; the waist clamp rod is connected and fixed to the T-shaped cross bar through a locking sleeve bolt; the grip is fixed to the waist clamp rod; the grip optical axis is fixed to the grip; the grip cylindrical sponge covers the surface of the grip optical axis; the back sponge pad is fixed in the middle of the T-shaped cross bar, so that the comfort of the trainee is improved.

[0014] Furthermore, the shoulder fixing unit of the waist rotation muscle training device includes a rotating bracket, an L-shaped support rod, a vertical rod, a square tube connector, a connecting rod locking sleeve, a T-shaped backrest frame, a backrest steel pipe frame, a backboard, a backboard sponge, a locking clamp frame, a clamp frame fixing plate, a handle, a cylindrical sponge pad, and a handle sponge pad; the L-shaped support rod is fixed to the rotating bracket by a screw connection; the vertical rod is connected to the L-shaped support rod by a square tube connector, and the vertical rod and the L-shaped support rod can adjust the fixed length in the square tube connector, so that the vertical rod can be adjusted in height to meet Training requirements for people of different sizes; the T-shaped backrest frame is connected and fixed to the vertical rod through a connecting rod locking sleeve; the locking clamp frame is connected to the T-shaped backrest frame through a clamp frame fixing plate, and the locking clamp frame and the T-shaped backrest frame are respectively fixed to the clamp frame fixing plate through bolts; the cylindrical sponge pad covers the surface of the cylindrical locking clamp frame; the handle is connected to the cylindrical sponge pad; the handle sponge covers the surface of the handle to improve the comfort of human-machine contact; the backrest steel pipe frame is fixed to the T-shaped backrest frame; the backboard is connected to the backrest steel pipe frame through screws; the backboard sponge covers the surface of the backboard.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the structure of the device is relatively simple, and the muscle strength training functions of waist flexion and extension, lateral flexion and rotation movements can be respectively realized by replacing the waist and back fixing unit, the side fixing unit and the shoulder fixing unit, thereby realizing multiple uses of one machine, and the training modes are rich, the appearance is simple, the use is convenient, and the wearer is comfortable and durable. The fixing position and size of the rod can be adjusted to meet the usage needs of different groups of people. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG1 is an isometric view of a reconfigurable waist muscle strength training device of the present invention; FIGa) is an isometric view of a waist flexion and extension muscle strength training device; FIGb) is an isometric view of a waist lateral flexion muscle strength training device; FIGc) is an isometric view of a waist rotation muscle strength training device;

[0017] FIG2 is a side view of the waist rotation muscle strength training device as a whole; FIGa) is a side view of the waist flexion and extension muscle strength training device as a whole; FIGb) is an axonometric view of the waist lateral flexion muscle strength training device; FIGc) is an axonometric view of the waist rotation muscle strength training device;

[0018] Figure 3 It is an exploded view of a waist rotation muscle strength training transmission unit of a reconfigurable waist muscle strength training device;

[0019] Figure 4 It is an axonometric view of a waist and back fixing unit of a reconfigurable waist muscle strength training device for waist flexion and extension muscle strength training;

[0020] Figure 5 It is an axonometric view of a side fixing unit of a lumbar lateral flexion muscle strength training device of a reconfigurable lumbar muscle strength training device;

[0021] Figure 6 It is an axonometric view of a waist rotation muscle training shoulder fixing unit of a reconfigurable waist muscle training device;

[0022] Figure 7 It is a structural explosion view of the power head of the reconfigurable waist muscle training device to achieve the pitch function; DETAILED DESCRIPTION

[0023] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or replacements in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0024] Fig. 1 is an axonometric view of a reconfigurable waist muscle strength training device of the present invention; Fig. a) is an axonometric view of the waist flexion and extension muscle strength training device; Fig. b) is an axonometric view of the waist lateral flexion muscle strength training device; Fig. c) is an axonometric view of the waist rotation muscle strength training device; Fig. 2 is a side view of the waist rotation muscle strength training device as a whole; Fig. a) is a side view of the waist flexion and extension muscle strength training device as a whole; Fig. b) is a side view of the waist lateral flexion muscle strength training device as a whole; Fig. c) is a side view of the waist rotation muscle strength training device as a whole; Figure 3 It is an exploded view of a waist rotation muscle strength training transmission unit of a reconfigurable waist muscle strength training device; Figure 4 It is an axonometric view of a waist and back fixing unit of a reconfigurable waist muscle strength training device for waist flexion and extension muscle strength training; Figure 5 It is an axonometric view of a side fixing unit of a lumbar lateral flexion muscle strength training device of a reconfigurable lumbar muscle strength training device; Figure 6 It is an axonometric view of a waist rotation muscle training shoulder fixing unit of a reconfigurable waist muscle training device;

[0025] Figure 7 It is a structural explosion view of the power head of the reconfigurable waist muscle training device to achieve the pitch function;

[0026] This embodiment provides a reconfigurable waist muscle training device, as shown in Figures 1 and 2, the reconfigurable waist muscle training device includes waist flexion and extension, lateral flexion and rotation muscle training functions, wherein the waist flexion and extension muscle training device Figure 1a ) includes a training seat unit 1, a driving unit 2, a waist and back fixing unit 5, and a base unit 3. The human body is connected to the waist and back fixing unit 5 to perform flexion and extension muscle strength training on the waist muscles; Waist lateral flexion exercise muscle strength training device Figure 1b ) includes a training seat unit 1, a driving unit 2, a side fixing unit 6, and a base unit 3. The human body is connected to the side fixing unit 6 to perform side flexion muscle strength training on the waist muscles; waist rotation exercise muscle strength training device Figure 1c ) comprises a training seat unit 1, a driving unit 2, a transmission unit 4, a shoulder fixing unit 7 and a base unit 3, and a human body is connected to the shoulder fixing unit 7 to perform rotational muscle strength training on waist muscles;

[0027] In this embodiment, referring to FIG. 1, FIG. 2, Figure 3 , Figure 7 As shown, the drive unit 2 includes a power head 8, a power head output shaft 9, a power head clamping device 10, a lifting column 11, a U-shaped frame 12, an adjusting hand wheel 13, a ring shaft 14, a deep groove ball bearing 15, an end gear 16, an end gear 17, a gear flange 18, a deep groove ball bearing 19, a handle shaft 20, and a deep groove ball bearing 21; the power head clamping device 10 is connected to the power head output shaft through a key connection 33; the U-shaped frame 12 is installed on the lifting column 11, and the power head 8 can adjust the height according to the lifting column 11; the two ends of the ring shaft 14 are fixed on both sides of the U-shaped frame 12, and the deep groove ball bearing 15 is arranged therebetween, so that the ring shaft 14 journal can rotate around the through holes on both sides of the U-shaped frame 12, the end gear 16 passes through the ring shaft 14 journal and is fixed to the U-shaped frame 12 with screws, and the end gear 17 is connected to the ring shaft 14 journal by a key 34 and the outer end face is fixed to the gear flange 18, the end face gear 16 is meshed with the end face gear 17, the deep groove ball bearing 19 is arranged between the gear flange 18 and the handle shaft 20, the handle shaft 20 is threadedly connected to the ring shaft 14, the adjusting hand wheel 13 is tightened with the handle shaft 20, the adjusting hand wheel 13 is internally connected with the deep groove ball bearing 21, the adjusting hand wheel 13 is adjusted to drive the handle shaft 20 to rotate, so that the handle shaft 20 is screwed out along the thread line, and the gear flange 18 and the end face gear 17 are removed along the axis, after the end face gear 16 is separated from the end face gear 17, according to the angle required for waist flexion and extension, lateral flexion and rotation muscle strength training, the axis of the power head output shaft is adjusted to be aligned with the waist movement axis, and then the adjusting hand wheel 13 is reversed to make the end face gear 16 and the end face gear 17 re-mesh and lock;

[0028] In this embodiment, referring to FIG. 1, FIG. 2, Figure 3 As shown, the training seat unit 1 includes: a training seat 22, a rotating platform 23, a rotating bracket 24, a rotating joint 25, a tapered roller bearing 26, and a load-bearing column 27; the lower surface of the training seat 22 is fixed to the rotating platform 23, and the rotating platform 23 can adjust the angle of the training seat 22 in the horizontal plane; the rotating joint 25 is fixed to the middle part of the load-bearing column 27 through the tapered roller bearing 26; the rotating bracket 24 is connected to the rotating joint 25 through a spline 28;

[0029] In this embodiment, Figure 2c ), Figure 3 As shown, the transmission unit 4 of the waist rotation exercise muscle training device includes a synchronous belt 29 and a pulley 30 and a pulley 31; the pulley 30 is fixed to the power head output shaft 9 through a key connection 33; the synchronous belt 29 and the pulleys 30 and 31 transmit power through meshing; the rotating joint 25 is connected to the load-bearing column 27 of the training chair unit 1 through the tapered roller bearing 26; the pulley 31 is connected and fixed to the lower side of the rotating joint 25 through a key connection 32; the rotating bracket 24 is connected to the rotating joint 25 through a spline 28; the shoulder fixing unit 7 is screwed to the rotating bracket 24, so that the power head output shaft 9 transmits power to the shoulder fixing unit 7 through the synchronous belt 29 and the pulleys 30 and 31, thereby driving the waist to rotate;

[0030] In this embodiment, as shown in Figures 1 and 2, the base unit 3 includes a slide rail 35, a slider mounting plate 36 and a base plate 37; the lifting column 11 is fixed to the slider mounting plate 36 by screws, and the position of the slider mounting plate 36 on the base plate 37 can change the distance between the drive unit 2 and the training seat unit 1; when performing waist flexion and extension and lateral flexion muscle strength training, the distance is adjusted to a suitable size so that the waist and back fixing unit can be stably connected to the limb; when performing waist rotation muscle strength training, after adjusting the direction of the power head output shaft 9, the height of the lifting column 11 and the horizontal angle of the training seat 22, it is necessary to adjust the slider mounting plate 36 to shorten the distance between it and the drive unit 2, install the synchronous belt 29 with the pulleys 30 and 31 at both ends, and then slowly move the slider mounting plate 36 to slowly tighten the synchronous belt 29 and tightly mesh with the pulleys 30 and 31 at both ends, that is, by adjusting the base unit 3, the installation and disassembly of the transmission unit with the waist rotation muscle strength training function can be completed;

[0031] In this embodiment, Figure 1a ), Figure 2a ), Figure 4As shown, the waist and back fixing unit 5 includes a T-shaped square rod 38, a locking sleeve 39, a locking clamp 40, and a square sponge pad 41;

[0032] The T-shaped square rod 38 is connected and fixed to the power head output shaft 9 through the power head clamping device 10; the locking frame 40 is connected and fixed to the T-shaped square rod 38 through the locking sleeve 39, and the locking sleeve 39 is fixed to both sides of the T-shaped square rod 38 by bolt connection, and is fixed to the locking clamp 40 by screws; the square sponge pad 41 is fixed to the locking clamp 40 to improve training comfort;

[0033] In this embodiment, Figure 1b ), Figure 2b ), Figure 5 As shown, the side fixing unit 6 includes a vertical rod 42, a T-shaped cross bar 43, a locking sleeve 44, a waist clamping frame rod 45, a grip 46, a grip optical axis 47, a grip cylindrical sponge 48, and a back sponge pad 49; the vertical rod 42 is connected and fixed to the power head output shaft 9 through the power head clamping device 10; the T-shaped cross bar 43 is bolted and fixed to the vertical rod 42 through the locking sleeve 44; the waist clamping frame rod 45 is bolted and fixed to the T-shaped cross bar 43 through the locking sleeve 44; the grip 46 is fixed to the waist clamping frame rod 45; the grip optical axis 47 is fixed to the grip 46; the grip cylindrical sponge 48 covers the surface of the grip optical axis 47; the back sponge pad 49 is fixed to the middle of the cross bar of the T-shaped cross bar 43, so that the trainer's comfort is improved;

[0034] In this embodiment, Figure 1c ), Figure 2c ), Figure 6As shown, the shoulder fixing unit 7 includes an L-shaped support rod 50, a vertical rod 51, a square tube connector 52, a connecting rod locking sleeve 53, a T-shaped backrest frame 54, a backrest steel pipe frame 55, a back plate 56, a back plate sponge 57, a locking clamp frame 58, a clamp frame fixing plate 59, a handle 60, a cylindrical sponge pad 61, and a handle sponge pad 62; the L-shaped support rod 50 is fixed to the rotating bracket 24 by screw connection; the vertical rod 51 is connected to the L-shaped support rod 50 by the square tube connector 52, and the vertical rod 51 and the L-shaped support rod 50 can adjust the fixed length in the square tube connector 52, so that the vertical rod 51 can be adjusted in height to meet the training requirements of people of different sizes; The back frame 54 is connected and fixed to the vertical rod 51 through the connecting rod locking sleeve 53; the locking clamp frame 58 is connected to the T-shaped backrest frame 54 through the clamp frame fixing plate 59, and the locking clamp frame 58 and the T-shaped backrest frame 54 are respectively fixed to the clamp frame fixing plate 59 through bolts; the cylindrical sponge pad 61 covers the surface of the locking clamp frame 58; the handle 60 is connected to the cylindrical sponge pad 61; the handle sponge pad 62 covers the surface of the handle 60 to improve the human-machine contact comfort; the backrest steel pipe frame 55 is fixed to the T-shaped backrest frame 54; the back plate 56 is connected to the backrest steel pipe frame 55 through screws; the back plate sponge 57 covers the surface of the back plate 56;

[0035] The present invention provides a reconfigurable waist muscle training device, which has the following beneficial effects:

[0036] 1) The device has a simple structure, is easy to use, comfortable to wear, safe and stable, easy to use, and can be used for multiple purposes to achieve waist flexion and extension, lateral flexion and rotation muscle strength training functions.

[0037] 2) The device can meet the muscle strength training needs of different patients.

[0038] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

[0039] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A reconfigurable waist muscle training device, characterized in that: The muscle strength training device comprises a training seat unit, a driving unit, a waist and back fixing unit, a side fixing unit, a shoulder fixing unit, a transmission unit and a base unit; The modules required for waist flexion and extension muscle strength training include a training seat unit, a drive unit, a waist and back fixing unit and a base unit; The lower surface of the training seat to which the training seat unit belongs is fixed to the rotating table; the structure of the drive unit to realize the pitch adjustment function is: the ring shaft used to fix the internal structure of the power head has its two end journals fixed to both sides of the U-frame through deep groove ball bearings, one end face gear passes through the journal on one side of the ring shaft and is connected to the U-frame screw, the other end face gear is connected to the ring shaft journal through a key and the end face is fixed to the gear flange, the two end face gears are meshed, there is a deep groove ball bearing between the gear flange and the handle shaft, the handle shaft is threadedly connected to the ring shaft, the adjusting hand wheel is tightened to the handle shaft, U The frame is fixed to the lifting column by screws; the output shaft of the power head of the drive unit is fixed to the power head clamping device by a key connection; the vertical rod part of the T-shaped square rod of the waist and back fixing unit is fixedly connected to the power head clamping device by a tightening handwheel, and the tightening handwheel is connected to the square hole of the clamping device. The right-angle locking plate is pressed and moved along 45° by rotating the tightening handwheel, and the vertical rod is pressed in the vertical and horizontal directions at the same time. The clamping device of the waist and back fixing unit is fixed to the crossbar part of the T-shaped square rod through a locking sleeve, and the clamping device is adjusted on the T-shaped square rod by the handwheel of the locking sleeve. The position on the top; the round head side of the base plate belonging to the base unit is connected and fixed with the load-bearing column of the training seat unit by screws, and the two sides of the square head side of the base plate are respectively installed with guide rail sliders, the slider mounting plate is fixed to the slider by screws, and the lifting column is installed and fixed on the slider mounting plate; when performing waist flexion and extension muscle strength training, first adjust the adjustment hand wheel to drive the handle shaft to rotate, so that it is screwed out along the thread line, and the gear flange and the end face gear are driven to move axially. When the end face gear and the end face gear are separated, adjust the output shaft axis of the power head to a horizontal position and point to one side of the training seat, rotate the hand wheel in the opposite direction, so that the two end face gears are re-engaged and locked, and the pitch angle adjustment of the power head is completed. Then adjust the angle of the training seat in the horizontal plane by adjusting the rotating table, so that the front and back of the human body can be attached to the square sponge pad of the waist and back fixing unit, and then adjust the height of the lifting column so that the output shaft axis of the power head can be aligned with the rotation axis of the waist flexion and extension of the human body. Finally, adjust the distance between the slider mounting plate and the training seat and adjust the interval between the two locking sleeves so that the two square sponge pads can be completely attached to the front and back of the human body; The modules required for lumbar lateral flexion muscle strength training include a training seat unit, a drive unit, a side fixing unit and a base unit; the structural composition and connection method of each unit are the same as those of lumbar flexion and extension muscle strength training; the adjustment steps of each unit for lumbar lateral flexion muscle strength training are as follows: first, the adjustment hand wheel needs to be adjusted so that the axis of the power head output shaft is horizontal and points to one side of the training seat, and then the rotating table needs to be adjusted so that the training seat is parallel in the vertical plane and faces the back of the lumbar clamping frame rod, the height of the lifting column needs to be adjusted so that the axis of the power head output shaft is aligned with the axis of lumbar lateral flexion rotation, the distance between the slider mounting plate and the training seat needs to be adjusted so that the lumbar clamping frame rod can be completely fitted with both sides of the human body's armpits, and at the same time, the human body's back needs to be tightly fitted with the back sponge pad, and finally, the distance between the locking sleeves needs to be adjusted so that the waist clamping frame rods on both sides can be tightly fitted with both sides of the armpits; The modules required for waist rotation muscle strength training include a training seat unit, a driving unit, a shoulder fixing unit, a transmission unit and a base unit; The lower surface of the training seat to which the training seat unit belongs is fixed to the rotating table, the rotating joint is installed in the middle section of the load-bearing column through a tapered roller bearing, the rotating bracket is fixed to the upper side of the rotating joint through a spline connection, and the pulley is fixed to the lower side of the rotating joint through a key connection; the power head output shaft of the drive unit is connected to the pulley through a key; the structure of the drive unit to achieve the pitch adjustment function is the same as the waist flexion and extension muscle strength training; the L-shaped support rod of the shoulder fixing unit is fixed to the rotating bracket through a screw connection, and the upper part of the L-shaped support rod is connected to the vertical rod through a square tube connector, the T-shaped backrest frame is tightened with the vertical rod by screws, and the locking clamp frame is fixed to both ends of the T-shaped backrest frame through a clamp frame fixing plate, and a cylindrical sponge pad is covered on the surface of the locking clamp frame. The backrest frame is fixed, the backboard is fixed to the surface of the backrest steel pipe frame, and the backboard sponge pad is covered on the backboard surface; the synchronous belt of the transmission unit is meshed with the pulley on one side of the power head output shaft and the pulley on the lower side of the rotating joint respectively; the structural composition and connection method of the base unit are the same as those of the waist flexion and extension and lateral flexion muscle strength training; when performing waist rotation muscle strength training, it is necessary to first adjust the adjustment hand wheel to make the output axis of the power head perpendicular to the ground, move the slider mounting plate to shorten the distance between the pulleys on both sides and install the synchronous belt on the pulley, then move the slider mounting plate and adjust the height of the lifting column to make the synchronous belt tightly meshed with the pulleys on both sides, adjust the training seat and the shoulder fixing unit to make the two sides of the human body's armpits close to the cylindrical sponge pad, and the back close to the backboard sponge pad; The training chair unit includes a chair base, a chair seat cushion, a chair backrest, a chair back cushion, a rotating table, a rotating bracket, a rotating joint, a wheel, and a load-bearing column; The bottom of the load-bearing column of the training chair unit is connected and fixed with bolts on one side of the round head of the base plate of the base unit; the chair base is connected and fixed with the rotating platform, so that the angle adjustment of the training chair in the horizontal plane can be realized; the rotating joint is fixed with the middle section of the load-bearing column through a tapered roller bearing, and the rotating joint can rotate around the middle section of the load-bearing column; the upper side of the rotating joint is spline-connected with the rotating bracket; the lower side of the rotating joint is key-connected with the pulley; when the synchronous belt drives the pulley to rotate, the rotating joint can rotate around the load-bearing column; the chair back is connected with the chair base; the chair seat cushion covers the surface of the chair base; the chair back cushion covers the surface of the chair back; The drive unit includes a power head, a U-shaped frame and a lifting column; The U-shaped frame is fixed to the lifting column. The height of the driving unit can be changed by adjusting the height of the lifting column. The two end journals of the ring shaft used to fix the internal structure of the power head are fixed on both sides of the U-shaped frame, and there is a deep groove ball bearing in between, which allows the ring shaft journal to rotate around the through holes on both sides of the U-shaped frame. One end face gear passes through the ring shaft journal and is fixed to the U-shaped frame with screws. The other end face gear is key-connected to the ring shaft journal and the outer end face is fixed to the gear flange. The two end face gears are meshed. There is a deep groove ball bearing between the gear flange and the handle shaft. The handle shaft is threadedly connected to the annular shaft. The adjusting hand wheel is tightened with the handle shaft, and the U-shaped frame and the lifting column are fixed with screws; the steps for adjusting the pitch angle of the power head are as follows: first, the adjusting hand wheel is adjusted to drive the handle shaft to rotate, so that the handle shaft is screwed out along the thread line, and the gear flange and the end face gear axis are driven to be removed. After the two end face gears are separated, according to the angles required for waist flexion and extension, lateral flexion and rotation muscle strength training, the axis of the power head output shaft is adjusted to align with the waist movement axis, and then the hand wheel is rotated in the opposite direction to re-engage and lock the two end face gears; during waist flexion and extension and lateral flexion muscle strength training, the power head output shaft of the drive unit is fixed to the power head clamping device through a key connection; The transmission unit includes a synchronous belt and a pair of pulleys; The synchronous belt is meshed with the pulley to transmit power, one of which is connected to the output shaft of the power head through a key connection; the other is connected to the lower side of the rotating joint through a key connection; when performing waist rotation muscle strength training, the transmission unit is used to transmit the torque of the drive unit to the rotating joint, so that the rotating joint rotates around the load-bearing column, thereby rotating the shoulder fixed unit fixed to the rotating joint; when performing waist rotation muscle strength training, after adjusting the direction of the output shaft of the power head, the height of the lifting column and the horizontal angle of the training seat, the slider mounting plate is adjusted to move on the slide rail to shorten the distance between the slider mounting plate and the training seat, the synchronous belt is installed on the pulley, and then the slider mounting plate is moved to make the synchronous belt tightly meshed with the pulleys on both sides; The waist and back fixing unit includes: a T-shaped square rod, a locking sleeve, a locking clamp, a clamp rod, and a square sponge pad; The locking clamp is connected and fixed to the T-shaped square rod through a locking sleeve, and the locking sleeve is fixed to both sides of the T-shaped square rod through bolt connection and fixed to the locking clamp through screws; the clamp rod is fixed to the locking clamp; the square sponge pad is fixed to the clamp rod; during waist flexion and extension muscle strength training, the vertical rod part of the T-shaped square rod is connected to the power head clamping device, and the hand wheel is tightened to tighten the right-angle locking plate to firmly fix the T-shaped square rod and the power head clamping device; the square sponge pad is attached to the front and back of the chest, and the spacing between the square sponge pads on both sides is adjusted by adjusting the locking sleeve to make it fit closely to the human body; The side fixing unit includes: a vertical rod, a T-shaped crossbar, a locking sleeve, a waist clamping rod, a grip, a grip optical axis, a grip cylindrical sponge, and a back sponge pad; The T-shaped crossbar is connected and fixed to the vertical bar by a locking sleeve bolt; the waist clamping frame rod is connected and fixed to the T-shaped crossbar by a locking sleeve bolt; the grip is fixed to the waist clamping frame rod; the grip optical axis is fixed to the grip; the grip cylindrical sponge covers the surface of the grip optical axis; the back sponge pad is fixed in the middle of the crossbar of the T-shaped crossbar; during waist lateral flexion muscle strength training, the vertical bar is connected and fixed to the output shaft of the drive unit by a clamping device; the human body clamps the waist clamping frame rod under the armpit, holds the grip cylindrical sponge with both hands, and the back is close to the back sponge pad; the waist clamping frame rods on both sides can be made to fit the human body more closely by adjusting the spacing of the locking sleeves; The shoulder fixing unit includes a rotating bracket, an L-shaped support rod, a vertical rod, a square tube connector, a connecting rod locking sleeve, a T-shaped backrest frame, a backrest steel pipe frame, a backboard, a backboard sponge, a locking clamp frame, a clamp frame fixing plate, a handle, a cylindrical sponge pad, and a handle sponge pad; The vertical rod is connected to the L-shaped support rod through a square tube connector; the T-shaped backrest frame is connected and fixed to the vertical rod through a connecting rod locking sleeve; the locking clamp frame is connected and fixed to the T-shaped backrest frame through a clamp frame fixing plate and screws; the cylindrical sponge pad is connected to the locking clamp frame; the handle is connected and fixed to the cylindrical sponge pad; the handle sponge pad covers the surface of the handle; the backrest steel pipe frame is connected to the T-shaped backrest frame; the backboard is connected to the backrest steel pipe frame through screws; the backboard sponge covers the surface of the backboard; during waist rotation muscle strength training, the L-shaped support rod is fixedly connected to the rotating bracket through screws; the human body clamps the cylindrical sponge pad under the armpit, holds the handle sponge pad with both hands, and the back is close to the backboard sponge; The base unit includes a slide rail, a slide mounting plate and a base plate; The lifting column and the slider mounting plate are fixed by screws. The distance between the drive unit and the training seat unit can be changed by adjusting the position of the slider mounting plate on the base plate. When performing waist flexion and extension and lateral flexion muscle strength training, the distance is adjusted to an appropriate size so that the waist and back fixing unit can be stably connected to the limbs. When performing waist rotation muscle strength training, after adjusting the direction of the power head output shaft, the height of the lifting column and the horizontal angle of the training seat, it is necessary to adjust the slider mounting plate to shorten the distance between it and the drive unit, install the synchronous belt and the pulleys at both ends, and then slowly move the slider mounting plate to slowly tighten the synchronous belt and tightly engage with the pulleys at both ends. That is, the installation and disassembly of the transmission unit for waist rotation muscle strength training function can be completed by adjusting the base unit.

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