CN111228732B

CN111228732B - Muscle strength training device for waist rotation

Info

Publication number: CN111228732B
Application number: CN202010055685.5A
Authority: CN
Inventors: 李剑锋; 张朋飞; 董明杰; 刘瑞丰; 刘顺启; 王海东
Original assignee: Beijing University of Technology
Current assignee: Beijing University of Technology
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2022-03-29
Anticipated expiration: 2040-01-17
Also published as: CN111228732A

Abstract

The invention relates to a muscle strength training device aiming at waist rotation. The power take-off is connected to a transmission unit which applies torque to the human body by the principle of a parallel four-bar mechanism. The training seat comprises an upper rotating joint and a lower rotating joint and an adjustable backrest, and provides an experimental foundation for rehabilitation training. The shoulder fixing device is connected with the human body and the training seat to realize the mutual transmission of human-computer force. The connecting unit connects the power output device and the training seat into a whole, and the whole stability of the device in the training process is ensured. Through the structure, the waist rotary muscle strength training device can meet the requirements of different patients on waist muscle strength training, is simple in structure and control, and can complete actions required by waist rotary muscle strength training.

Description

Muscle strength training device for waist rotation

Technical Field

The invention relates to a muscle strength training device aiming at waist rotation, in particular to a waist rotation muscle strength training device for transmitting power by a four-bar mechanism.

Background

Muscles perform many important functions in the human body, healthy and strong muscles maintain the stability of joints of the body and the ability to perform various physical activities, and muscular atrophy has a great influence on muscle strength, exercise, endurance, daily activity and the like. The waist muscle is one of the most important muscle groups of the human body, the strength, the stability and the protection of the spine of the human body can not leave the waist, and some basic exercises such as running, swimming, rope skipping and the like need the support of the waist strength. Carry out the muscular strength training to the waist, can effectively temper and promote human waist muscle strength, and then promote the stability and the harmony of waist, delay the process that lumbar vertebrae strain degenerated to effectively prevent the emergence of acute and chronic waist injury and lumbago.

Rotatory muscle power trainer in waist can make the human waist control rotary motion obtain effectual exercise, and the structure is succinct, and control is simple, and is comfortable durable, can realize initiative and passive training. The device has the advantages of beautiful appearance, flexible adjustment, comfortable wearing and the like, can realize various training modes and meet different training requirements of human bodies.

Disclosure of Invention

The invention aims to provide a muscle strength training device aiming at waist rotation, so as to solve the problems.

The embodiment of the invention provides a muscle strength training device aiming at waist rotation, which is characterized by comprising a power output device, a training seat, a transmission unit, a shoulder fixing device and a connecting unit;

the power output device can adjust the height and the horizontal rotation angle and provide stable output torque for rehabilitation training; the training seat is provided with a binding belt, the angle of the backrest can be flexibly selected, and the training comfort is ensured; two rotary joints are mounted at the upper end and the lower end of the bearing column, the upper rotary joint is used for transmitting power, the lower rotary joint is used for fixing the connecting unit, and the human waist rotating center and the bearing column center are on the same axis; the transmission unit transmits power by adopting a motion mode of a parallel four-bar mechanism, the rotation center of the waist of a human body and the rotation center of the output shaft of the driving unit are fixed on the same plane, and the output shaft of the driving unit and the rotating joint on the training seat keep synchronous rotation; the front end of the man-machine connecting device is bound with the shoulders of the human body, and the tail end of the man-machine connecting device is fixed on a rotary joint on the training seat and used for transmitting torque; the connecting unit is used for connecting the training seat and the driving unit, the overall stability of the device is improved, the front end of the connecting unit is connected with the lower rotating joint of the training seat, the rear end of the connecting unit is fixed on the lifting column of the driving unit, and the length of the connecting unit can be freely stretched and contracted for adjusting the distance between the training seat and the driving unit.

Further, the training seat comprises a chair chassis, a lower rotating joint, a bearing column, an upper rotating joint, a chair base and a chair backrest; the chair chassis is placed on the ground, and the lower rotating joint is respectively connected with the chair chassis and the lower end face of the bearing column through screws and can rotate around the center of the bearing column; the upper rotating joint is respectively connected with the upper end surface of the bearing column and the lower surface of the chair base; 4 mounting holes are formed in the upper surface of the chair base and used for additionally mounting auxiliary supporting rods, so that the stability of a human body is kept in the training process; the chair back is connected with the chair base, and can adjust the rotation angle of the chair back relative to the base through the handle, thereby improving the comfort of the human body in the training process.

Furthermore, the movable unit comprises a long rod, two L-shaped rods and two short rods, and the rods are connected to form a parallel four-rod mechanism, so that the symmetry of torque transmission is ensured; the center of the long rod and the rotation center of the driving unit are on the same axis, and the long rod and the rotation center of the driving unit are compressed by a hand wheel to be fixed on a power head output rod; the two L-shaped rods are respectively connected to two ends of the long rod and can rotate around the long rod; two quarter butt circle ends are connected with two L type poles respectively, simultaneously can relative rotation, and two quarter butt square ends are fixed at training seat transmission bearing frame both ends.

Further, the shoulder fixing device comprises an L-shaped supporting rod, a U-shaped frame, a shoulder baffle, a pressing clamp, a shoulder fixing ring and a handle; the L-shaped support rod is pressed tightly by a hand wheel to be fixed on a rotating joint on the training seat; the U-shaped frame is adjustable in height and used for adapting to the heights of different people, and is fixed in a hand wheel pressing mode; the shoulder baffle is connected with the U-shaped frame through screws, and the surface of the shoulder baffle is provided with high-density sponge, so that the wearing comfort of a human body is ensured; the pressing clamp slides back and forth along the cylindrical surface of the U-shaped frame so as to adapt to different human body sizes; the shoulder fixing ring can rotate around the compression clamp; the handle is fixed at the tail end of the U-shaped frame, so that the human body can exert force conveniently.

Furthermore, the connecting unit comprises a telescopic shell, a telescopic plate, a rack, a positioner and positioning teeth; the rack is fixed on the upper surface of the telescopic plate, and the telescopic shell and the telescopic plate can slide relatively; the locator is installed at flexible shell surface, and its inside is equipped with the location tooth, presses down and pulls out the control level tooth through the manual work and reciprocates to realize the meshing and the separation of location tooth and rack, and then be convenient for adjust linkage unit's whole length.

Compared with the prior art, the invention has the beneficial effects that: the device structure and control are simple relatively, and the appearance is succinct, and it is convenient to dress, and is comfortable durable, can adapt to different use crowds through adjustment member size, can realize multiple training modes such as the initiative of waist muscle and passive.

Drawings

FIG. 1 is an isometric view of a lumbar rotary muscle strength training device of the present invention;

FIG. 2 is a side view of the whole of the lumbar rotary muscle training device;

FIG. 3 is a side view of a lumbar rotary muscle training chair;

FIG. 4 is an isometric view of the lumbar rotary muscle training device transmission unit;

FIG. 5 is an isometric view of the shoulder fixture of the lumbar rotary muscle training device;

FIG. 6 is a cross-sectional view of the lumbar rotary muscle training device attachment unit;

Detailed Description

The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that functional, methodological, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.

Fig. 1 is an axial view of a lumbar rotary muscle training device according to the present invention, fig. 2 is a side view of the whole of the lumbar rotary muscle training device, fig. 3 is a side view of a training chair of the lumbar rotary muscle training device, fig. 4 is an axial view of a transmission unit of the lumbar rotary muscle training device, fig. 5 is an axial view of a shoulder fixing device of the lumbar rotary muscle training device, and fig. 6 is a sectional view of a connection unit of the lumbar rotary muscle training device.

As shown in fig. 1 to 6, the waist muscle training device according to the present embodiment includes a power output device, a training seat, a transmission unit, a shoulder fixing device, and a connecting unit, and a human body performs rehabilitation training on waist muscles through the waist rotating muscle training device.

In this embodiment, referring to fig. 1 and 2, the power output device includes an output rod 1, a power head 2, a horizontal rotating base 3, a horizontal locking hand wheel 4, a support column 5, a pitching hand wheel 6, a star-shaped chassis 7, and a universal wheel 8; the output rod 1 is connected with the power head 2 through a key; the power head 2 is mounted on the horizontal rotating base 3, and the power head 2 can freely rotate relative to the horizontal rotating base 3; the horizontal locking hand wheel 4 is used for fixing the rotation angle of the power head 2; the pitching hand wheel 6 is connected with the power head 2 through a screw and used for adjusting the pitching rotation angle of the power head 2; the upper end surface of the support column 5 is fixed with the horizontal rotating seat 3 through a screw, and the lower end surface of the support column is fixed on the star-shaped chassis 7; the star-shaped chassis 7 is provided with 4 universal wheels 8 so as to facilitate the overall movement of the power output device.

In the present embodiment, referring to fig. 1, 2 and 4, the transmission unit includes a long rod 9, two L-shaped rods 10 and two short rods 11; the long rod 9 is installed on the output rod 1 and is fixed in a manner of pressing by a hand wheel 12, and the rotation center of the long rod 9 and the rotation center of the output rod 1 are kept on the same axis; the short side 10 of the L-shaped rod is connected with the tail end of one side of the long rod 9, the L-shaped rod 10 can rotate relative to the long rod 9, and the vertical position of the L-shaped rod 10 is fixed by screwing the hand wheel 12; the long side of the L-shaped rod 10 is connected with the round end of the short rod 11 through a hand wheel 12, and the connecting part is a revolute pair; the short rod 11 is connected with the transmission bearing seat 24 in a pressing mode through a hand wheel 12; the other side of the transmission unit is spliced in a symmetrical connection mode to form a parallelogram, and the transmission unit has the advantages that eccentric moments generated in the transmission process can be mutually offset, so that the integral stability of the device in the transmission process is ensured;

in this embodiment, referring to fig. 1, 2 and 3, the training seat includes a chair chassis 13, a lower rotating joint 14, a bearing column 15, an upper rotating joint 16, a chair base 17 and a chair backrest 18; the chair chassis 13 is placed on the ground, and the lower rotating joint comprises a first deep groove ball bearing 19-1, a lower connecting flange 20, a bearing seat 21 and a retainer ring 22; the inner ring of the first deep groove ball bearing 19-1 is arranged on a protruding shaft of the chair chassis 13, the bearing seat 21 is sleeved on the outer ring of the first deep groove ball bearing 19-1, the rectangular plane of the bearing seat is used for installing a connecting unit, and the connecting unit can rotate around the center of the bearing column 15; the retainer ring 22 is connected with the bearing seat 21 through a screw, and plays a role in axial limiting on the first deep groove ball bearing 19-1; the end face of the lower connecting flange 20 is connected with the upper surface of a protruding shaft of the chair chassis 13, and the upper surface of the lower connecting flange is fixed on the lower surface of the bearing column 15 through screws; the upper surface of the bearing column 15 is connected with the upper connecting flange 23 through screws; the upper rotating joint 16 comprises a second deep groove ball bearing 19-2, an upper connecting flange 23, a transmission bearing seat 24, a retainer ring 22 and a chair turntable 25; the inner ring of the second deep groove ball bearing 19-2 is sleeved on the chair turntable 25, and the outer ring is arranged on the transmission bearing seat 24; the transmission bearing seat 24 is respectively connected with the short rod 11 and the shoulder fixing device and is pressed and fixed through a hand wheel 13, so that the function of transmitting torque can be achieved; the retainer ring 22 is fixed on the transmission bearing seat 24 and plays a role in axially limiting the second deep groove ball bearing 19-2; the chair base 17 is fixed on the upper surface of the chair turntable 25; the surface of the chair base 17 is provided with 4 mounting holes for installing auxiliary supporting rods, so that the stability of a human body is kept in the training process; the chair back 18 can rotate relative to the chair base 17, and the handle 26 can adjust the rotation angle of the chair back 18, so that the comfort of wearing by a human body in the training process is improved.

In this embodiment, referring to fig. 1, 2 and 5, the shoulder fixing device includes an L-shaped supporting rod 27, a U-shaped frame 28, a shoulder baffle 29, a pressing clamp 30, a shoulder fixing ring 31 and a handle 32; the lower end of the L-shaped support rod 27 is arranged on the transmission bearing seat 24; the U-shaped frame 28 is inserted into the inner hole of the L-shaped support rod 27, slides up and down along the inner hole of the L-shaped support rod 27 to adjust the position, adapts to the heights of different people, and is fixed in a locking mode through the hand wheel 12; the shoulder baffle 29 is fixed on the U-shaped frame 28 through screws, and the shoulder baffle 29 can be provided with a binding belt to fix the relative position of a human body; the pressing clamp can slide back and forth along the cylindrical surface at the front end of the U-shaped frame 28 to adapt to different human body sizes, and is pressed and fixed at a proper position through a screw; the shoulder fixing ring 31 is mounted on the compression clamp 30 and can rotate relatively, and the arc-shaped high-density sponge 33 is mounted on the surface of the shoulder fixing ring 31 and used for improving the wearing comfort of a human body; the handle 32 is arranged at the tail end of the cylindrical surface of the U-shaped frame 28 and is fixed through screws, so that the force of a human body can be exerted in the training process conveniently.

In this embodiment, referring to fig. 1, 2, and 6, the connection unit includes a telescopic shell 34, a telescopic plate 35, a rack 36, a positioner 37, and a positioning tooth 38; the rear end face of the telescopic shell 34 is connected with the surface of the support column 5 through a screw; the front end face of the telescopic plate 35 is fixed on the surface of the tail end of the bearing seat 21, and sliding rails are arranged on two side faces of the telescopic plate for reducing the friction resistance between the telescopic shell 34 and the telescopic plate 35; the rack 36 is mounted on the upper surface of the expansion plate 35; the positioner 37 is mounted on the telescopic shell 34, the positioner 37 adopts the principle of a spring plunger, the positioning teeth 38 are mounted in the positioner 37, and the positioning teeth 38 are controlled to be engaged with and disengaged from the rack 36 by manual pressing and pulling, so that the overall length of the connecting unit is adjusted.

The invention provides a muscle strength training device aiming at waist rotation, which has the following beneficial effects:

1) the device control and simple structure, convenient to use, it is comfortable to dress, and the moment of torsion transmission is stable, can accurate measurement human muscle strength parameter.

2) The device can adjust the relative position of the rod piece to adapt to different human body sizes.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The utility model provides a muscle strength trainer to waist is rotatory which characterized in that: the muscle strength training device comprises a power output device, a training seat, a transmission unit, a shoulder fixing device and a connecting unit;

the muscle strength training device carries out strength rehabilitation training aiming at waist muscles; the power output device can adjust the height and the horizontal rotation angle and provide stable output torque for rehabilitation training; the training seat is provided with a binding belt, the upper end and the lower end of the bearing column are provided with two rotating joints, the upper rotating joint is used for transmitting power, the lower rotating joint is used for fixing the connecting unit, and the rotating center of the waist of the human body and the center of the bearing column are on the same axis; the transmission unit transmits power by adopting a motion mode of a parallel four-bar mechanism, the rotation center of the waist of a human body and the rotation center of the output shaft of the driving unit are fixed in the same vertical plane, and the output shaft of the driving unit and the rotary joint on the training seat keep synchronous rotation; the front end of the man-machine connecting device is bound with the shoulders of the human body, and the tail end of the man-machine connecting device is fixed on a rotary joint on the training seat and used for transmitting torque; the connecting unit is used for connecting the training seat and the driving unit, the front end of the connecting unit is connected with the lower rotating joint of the training seat, the rear end of the connecting unit is fixed on the lifting column of the driving unit, and the connecting unit can freely stretch and retract and is used for adjusting the distance between the training seat and the driving unit;

the transmission unit comprises a long rod, 2L-shaped rods and 2 short rods, and the rods are connected to form a parallel four-rod mechanism;

the center of the long rod is concentric with the rotation center of the driving unit, and the long rod is tightly pressed by a hand wheel and fixed on the output rod of the power head; 2L-shaped rods are respectively connected to two ends of the long rod and can rotate around the long rod; the round ends of the 2 short rods are respectively connected with the 2L-shaped rods and can rotate relatively, and the square ends of the 2 short rods are fixed at the two ends of a transmission bearing seat of the training seat;

the shoulder fixing device comprises an L-shaped supporting rod, a U-shaped frame, a shoulder baffle, a compression clamp, a shoulder fixing ring and a handle;

the L-shaped support rod is pressed by a hand wheel and is fixed on a rotary joint on the training seat; the height position of the U-shaped frame is adjustable, and the U-shaped frame is fixed in a hand wheel pressing mode; the shoulder baffle is connected with the U-shaped frame through a screw; the pressing clamp slides back and forth along the cylindrical surface of the U-shaped frame so as to adapt to different human body sizes; the shoulder fixing ring can rotate around the compression clamp; the handle is fixed at the tail end of the U-shaped frame;

the connecting unit comprises a telescopic shell, a telescopic plate, a rack, a positioner and positioning teeth;

the rack is fixed on the upper surface of the telescopic plate, and the telescopic shell and the telescopic plate can slide relatively; the locator is installed at flexible shell surface, and its inside is equipped with the location tooth, reciprocates through pressing down and pulling out the control level tooth to realize the meshing and the separation of location tooth and rack, and then be convenient for adjust linkage unit's whole length.

2. A muscle strength training apparatus for lumbar rotation according to claim 1, wherein: the training seat comprises a chair chassis, a lower rotating joint, a bearing column, an upper rotating joint, a chair base and a chair backrest;

the chair chassis is placed on the ground, and the lower rotating joint is respectively connected with the chair chassis and the lower end face of the bearing column through screws and can rotate around the center of the bearing column; the upper rotating joint is respectively connected with the upper end surface of the bearing column and the lower surface of the chair base; the chair backrest is connected with the chair base, and the rotation angle of the chair backrest relative to the chair base can be adjusted through the handle.