CN212067618U

CN212067618U - Elbow joint training device

Info

Publication number: CN212067618U
Application number: CN202020396761.4U
Authority: CN
Inventors: 田野
Original assignee: Hebei Daai Intelligent Technology Co ltd
Current assignee: Hebei Daai Intelligent Technology Co ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2020-12-04
Anticipated expiration: 2030-03-25

Abstract

The utility model discloses an elbow joint trainer, include: a frame; the driving part is arranged on the rack and is provided with a driving shaft extending along the left-right direction; the transmission assembly is arranged on the driving shaft and can rotate under the driving of the driving piece; and the small arm fixing assembly is rotatably connected with the transmission assembly, and the rotation axis of the small arm fixing assembly is parallel to the rotation axis of the transmission assembly. The utility model discloses technical scheme can carry out the rehabilitation training to patient's elbow joint more conveniently to reach the balanced effect of strength.

Description

Elbow joint training device

Technical Field

The utility model relates to the technical field of medical equipment, in particular to elbow joint trainer.

Background

Contracture of the elbow joint, trauma or post-operative fixation is required to limit its motion to facilitate rapid repair of soft tissues. In general, various contractures and adhesions occur during the repair of soft tissues, and thus patients may develop various degrees of elbow dysfunction after the removal of the elbow fixation device. Elbow joint dysfunction can greatly affect the daily life of a patient, so that rehabilitation training of the elbow joint of the patient is particularly important.

At present, treatments such as lysis, rehabilitation and physical factor therapy are mostly adopted for elbow joint dysfunction, but the treatment effects are not obvious due to unbalanced strength.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an elbow joint trainer, aims at conveniently carrying out the rehabilitation training to patient's elbow joint more to reach the balanced effect of strength.

In order to achieve the above object, the utility model provides an elbow joint training device includes:

a frame;

the driving part is arranged on the rack and is provided with a driving shaft extending along the left-right direction;

the transmission assembly is arranged on the driving shaft and can rotate under the driving of the driving piece; and the number of the first and second groups,

the small arm fixing assembly is rotatably connected with the transmission assembly, and the rotation axis of the small arm fixing assembly is parallel to the rotation axis of the transmission assembly.

Optionally, the forearm fixing assembly comprises a forearm bracket, a connecting arm and a handle, the handle and the forearm bracket are arranged at intervals along the front-back direction, the connecting arm is connected with the forearm bracket and the handle, and the end part of the handle is rotatably connected with the transmission assembly.

Optionally, the small arm fixing assembly includes two connecting arms, and the two connecting arms are respectively disposed on two opposite sides of the small arm bracket and respectively connected to two ends of the handle.

Optionally, the elbow training device further comprises a shoulder fixing component, and the shoulder fixing component is connected with the frame and used for being erected on the shoulder.

Optionally, the shoulder fixing assembly includes a shoulder fixing rod and a connecting rod connected to each other, the shoulder fixing rod is used to be set up on a shoulder, the connecting rod is connected to the rack, and the connecting rod has two mounting positions, and the two mounting positions are arranged along a front-back direction;

the shoulder fixing rod can be detachably connected with any one of the mounting positions.

Optionally, the mounting position is a slot, a notch of the slot is along a front-back direction, and the shoulder fixing rod is inserted into the slot.

Optionally, the shoulder fixing assembly includes a shoulder fixing rod and a connecting rod, the shoulder fixing rod is used to be set up on the shoulder and is telescopically connected to the connecting rod, so that the shoulder fixing rod can move in the front-back direction and is fixed to the connecting rod after moving in place, and the connecting rod is connected to the frame.

Optionally, the shoulder fixing rod has a shoulder fixing section and an adjusting section, the upper end of the shoulder fixing section is bent and arranged and is used for being erected on the shoulder, the lower end of the shoulder fixing section is telescopically connected with the adjusting section along the up-down direction, the shoulder fixing section is fixed to the adjusting section after the shoulder fixing rod is moved in place, and the other end of the adjusting section is connected with the connecting rod.

Optionally, the bottom surface of the shoulder fixing component is provided with a sucker to contact with the ground.

Optionally, the transmission assembly includes an adjusting member, a screw rod and a nut, the adjusting member is connected to the driving shaft, the nut is sleeved on the screw rod and is rotatably connected to the small arm fixing assembly, and the length direction of the screw rod intersects with the driving shaft; the screw is rotatably coupled to the adjustment member such that the nut moves along the screw when rotated relative to the adjustment member.

Specifically, driving piece drive shaft rotates, and the transmission assembly rotates together under the drive of drive shaft, and simultaneously, the fixed subassembly of transmission assembly drive forearm rotates together, and this fixed subassembly of forearm uses the drive shaft to carry out the revolution as the revolution axis, and when the fixed subassembly revolution of forearm, the forearm can be relatively the health and move in upper and lower fore-and-aft direction to play tractive effect to the elbow joint, carry out the rehabilitation training to the elbow joint. In addition, the driving part is adopted to drive, so that the driving force is balanced, the treatment effect is greatly improved, and meanwhile, the elbow joint of the patient can be rehabilitated and trained more conveniently. Because the forearm fixing component is rotationally connected with the transmission component, when the forearm fixing component revolves along with the driving shaft, the forearm fixing component also rotates relative to the transmission component, namely, the forearm fixing component cannot turn over, so that the forearm fixing component can be always kept in a generally flat state, and the rotation of the forearm is prevented.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of an embodiment of the elbow joint training device of the present invention;

FIG. 2 is an exploded view of the elbow training device of FIG. 1;

FIG. 3A is a schematic representation of a state of motion of the elbow training device of FIG. 1;

FIG. 3B is a schematic view of another exercise state of the elbow training device of FIG. 1;

FIG. 3C is a schematic view of a further exercise state of the elbow training device of FIG. 1;

FIG. 4A is a schematic illustration of the elbow training device of FIG. 1 in use with a left hand;

fig. 4B is a schematic view of the elbow training device of fig. 1 in use with a right hand.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides an elbow joint training device please refer to fig. 1 and fig. 2 in combination, and elbow joint training device includes:

a frame 10;

a driving member 20 mounted to the frame 10, the driving member 20 having a driving shaft extending in a left-right direction;

a transmission assembly mounted on the driving shaft, the transmission assembly being capable of rotating under the driving of the driving member 20; and the number of the first and second groups,

and the small arm fixing component 40 is rotatably connected with the transmission component, and the rotation axis of the small arm fixing component 40 is parallel to the rotation axis of the transmission component.

In the present invention, the frame 10 serves as a supporting structure for the driving member 20, and the frame 10 may be a generally shell structure, so that the driving member 20 is hidden inside the frame 10, thereby protecting the driving member 20. Meanwhile, a sealed cavity can be formed in the frame 10, and the driving member 20 is located in the sealed cavity, so as to achieve the waterproof and dustproof effects. For example, the housing 10 may be a square housing. Further, the frame 10 may be a frame structure such as a triangular frame, a square frame, or the like.

The drive member 20 may be embodied as an electric motor.

The transmission assembly functions to connect the forearm fixing assembly 40 to the drive shaft. The transmission assembly may include a rotatable disk 322, the rotatable disk 322 being secured to the drive shaft and rotatable therewith, the forearm attachment assembly 40 being rotatably connected to the rotatable disk 322. Of course, the transmission assembly may also include a rod-like connecting structure having one end connected to the drive shaft and the other end rotatably connected to the forearm fixing assembly 40.

The forearm fixing component 40 is used for fixing the forearm, namely after the forearm is fixed on the forearm fixing component 40, the forearm fixing component 40 can drive the elbow joint to move along with the movement of the forearm fixing component 40. The small arm fixing component 40 can be arranged below the small arm to support the small arm; alternatively, the forearm fixation assembly 40 is disposed above the forearm, preventing the forearm from moving up and down relative to the forearm fixation assembly 40. Alternatively, a retaining hole 524 is formed in the forearm fixing member 40 for the forearm to extend through.

It should be noted that the rotation axis of the arm fixing unit 40 is offset from the driving shaft, and the two rotation axes are not coaxial, that is, the rotation axis of the arm fixing unit 40 is located in the radial direction of the driving shaft, so that the arm fixing unit 40 can be displaced in the up-down and front-back directions.

The rotation axis of the small arm fixing assembly 40 is parallel to the rotation axis of the transmission assembly (i.e., the rotation axis of the driving shaft), which means that the rotation axis of the small arm fixing assembly 40 is parallel or substantially parallel to the rotation axis of the transmission assembly, i.e., both extend substantially in the left-right direction.

Specifically, the driving member 20 drives the driving shaft to rotate, the transmission assembly is driven by the driving shaft to rotate together, meanwhile, the transmission assembly drives the forearm fixing assembly 40 to rotate together, the forearm fixing assembly 40 revolves around the driving shaft as a revolution axis, so that when the forearm fixing assembly 40 revolves, the forearm can move in the up-down front-back direction relative to the body, and accordingly the elbow joint is pulled to perform rehabilitation training on the elbow joint. In addition, the driving mode of the driving part 20 is adopted, so that the driving force is balanced, the treatment effect is greatly improved, and meanwhile, the elbow joint of the patient can be rehabilitated and trained more conveniently.

Because the small arm fixing assembly 40 is rotatably connected with the transmission assembly, when the small arm fixing assembly 40 revolves along with the driving shaft, the small arm fixing assembly 40 rotates relative to the transmission assembly, namely, the small arm fixing assembly 40 cannot turn over, so that the small arm fixing assembly 40 can be always kept in a generally flat state, and the small arm is prevented from twisting.

In one embodiment, the small arm fixing assembly 40 includes a small arm bracket 41, a connecting arm 42 and a handle 43, the handle 43 and the small arm bracket 41 are spaced apart from each other in the front-rear direction, the connecting arm 42 connects the small arm bracket 41 and the handle 43, and the end of the handle 43 is rotatably connected to the transmission assembly.

Specifically, a binding band may be provided on the forearm bracket 41 to bind the forearm to the forearm bracket 41. The forearm bracket 41 is generally elongate and extends in a fore-aft direction to better support the entire forearm.

The handle 43 is generally long-axis so as to facilitate grasping by the palm of the user's hand. Alternatively, the handle 43 is located above the forearm bracket 41, so that the forearm can be placed on the forearm bracket 41 with the palm facing upward, with the palm facing upward to grasp the handle 43.

In the rotation and revolution process of the forearm fixing component 40, the handle 43 is arranged for being grasped by a palm, so that the forearm fixing component 40 can be further prevented from being overturned greatly, and the elbow joint can be pulled better.

In one embodiment, the small arm fixing assembly 40 includes two connecting arms 42, and the two connecting arms 42 are respectively disposed on two opposite sides of the small arm bracket 41 and are respectively connected to two ends of the handle 43. The provision of two connecting arms 42 makes the connection more stable. And the two connecting arms 42 are positioned at two opposite sides of the small arm bracket 41, so that the small arms can be avoided and prevented from being blocked.

The elbow training device further comprises a shoulder fixing component 50, wherein the shoulder fixing component 50 is connected with the frame 10 and used for being erected on the shoulder. Thus, when the small arm moves, the shoulder fixing component 50 can press the shoulder downwards, and the movement of the shoulder is reduced.

The shoulder fixing member 50 may have a plate shape, a rod shape, or the like, and the shoulder fixing member 50 may be connected to an upper portion or a lower portion of the frame 10, or may be connected to a front side or a rear side of the frame 10.

In one embodiment, the shoulder fixing assembly 50 includes a shoulder fixing rod 51 and a connecting rod 52 connected to each other, the shoulder fixing rod 51 is configured to be rested on a shoulder, and the connecting rod 52 is connected to the frame 10.

Alternatively, the shoulder fixing rod 51 has a bending section hooked on the shoulder to prevent the shoulder from shaking up and down, and a vertical section extending substantially in the up-down direction and connected to the lower end of the bending section, which is attached to the chest to prevent the body from moving.

In one embodiment, the connecting rod 52 has two mounting positions 523, and the two mounting positions 523 are arranged along the front-back direction; the shoulder fixing rod 51 can be detachably connected with any one of the mounting sites 523. In this way, when the shoulder fixing lever 51 is installed at one of the installation sites 523, the shoulder fixing lever 51 can fix the left shoulder; when the shoulder fixing lever 51 is installed at the other installation site 523, the shoulder fixing lever 51 may fix the right shoulder.

Referring to fig. 4A and 4B in combination, in this process, the rack 10 can be moved away to the left or right hand side, and the placement state of the rack 10 can be changed, for example, the left or right placement state of the rack 10 can be changed, so that the forearm fixing component 40 can adapt to the fixing of the left or right forearm, and the shoulder fixing rod 51 can adapt to the fixing of the left or right shoulder.

In this embodiment, when the shoulder fixing lever 51 is mounted at a different mounting location 523, the orientation of the forearm fixing assembly 40 also needs to be changed accordingly, for example, when the shoulder fixing lever 51 acts on the left shoulder, the left side of the forearm fixing assembly 40 is connected to the drive assembly, and when the shoulder fixing lever 51 acts on the right shoulder, the right side of the forearm fixing assembly 40 is connected to the drive assembly.

In order to realize the direction conversion of the small arm fixing component 40, in an embodiment, the left and right sides of the small arm fixing component 40 are provided with rotation connecting holes, for example, the handle 43 may be cylindrical to have two ends through, and have a long strip-shaped rotation connecting hole, when the different ends of the rotation connecting hole of the handle 43 are connected to the transmission component, the extending direction of the small arm fixing component 40 can be changed to correspondingly adapt to the fixing of the left small arm or the right small arm. For example, one pivot coupling hole may be provided directly on each of the right and left sides of the arm bracket 41. Alternatively, the connecting arm 42 may be detachably connected to the handle 43, and the forearm bracket 41 may be correspondingly disposed at the front side or the rear side of the handle 43 by changing the extending direction of the connecting arm 42 relative to the handle 43, such as the connecting arm 42 extending forward or backward from the handle 43, so as to adapt to the fixation of the left-hand forearm or the right-hand forearm. This approach does not require a change in the connection of the handle 43 to the transmission assembly.

Install installation position 523 through with shoulder dead lever 51 in the difference, can correspond and carry out rehabilitation training to left hand or right hand, so only through a device, just can adapt to the rehabilitation training of left elbow joint and right elbow joint, it uses the flexibility stronger, has made things convenient for user's use greatly.

In an embodiment, the mounting portion 523 is a slot, a notch of the slot is along a front-back direction, and the shoulder fixing rod 51 is inserted into the slot. Alternatively, the connecting rod 52 may be a hollow rod, so that slots are formed at both front and rear ends. In addition, the mounting position 523 may be a snap, a slot, or a stud.

The connecting rod 52 has a first connecting section 521 and a second connecting section 522 connected, the first connecting section 521 is connected to the frame 10, the first connecting section 521 may extend in the left-right direction, or the first connecting section 521 is composed of a plurality of rod sections extending in different directions. The second connection section 522 extends in the front-rear direction; two ends of the second connection section 522 are respectively provided with a slot to form the installation position 523, and the lower end of the shoulder fixing rod 51 is inserted into the slots.

In one embodiment, the shoulder fixing rod 51 is telescopically connected to the connecting rod 52, so that the shoulder fixing rod 51 can move in the front-back direction and is fixed to the connecting rod 52 after moving to a position, thereby being suitable for patients with different arm lengths. For example, in the embodiment in which the connecting rod 52 is inserted into the shoulder fixing rod 51 through a slot, the length of the shoulder fixing rod 51 inserted into the slot may be changed, thereby changing the front-rear distance between the shoulder fixing rod 51 and the drive shaft.

In order to fix the shoulder fixing rod 51 and the connecting rod 52, a plurality of limiting holes 524 may be formed in the connecting rod 52 in the front-rear direction, the limiting holes 524 are communicated with the slots, and a limiting member may be inserted into different limiting holes 524, so that the limiting member may be fixed to the shoulder fixing rod 51, thereby limiting the movement of the shoulder fixing rod 51. The limiting member may be a limiting rod, a limiting groove is formed in the shoulder fixing rod 51, and the limiting rod may be inserted into the limiting groove. Or, the limiting member is a screw, the shoulder fixing rod 51 is provided with a mounting hole, the limiting hole 524 is a screw hole, and the screw sequentially passes through the mounting hole and the limiting hole 524, so that the shoulder fixing rod 51 is fixed to the connecting rod 52. In other embodiments, the connecting rod 52 may not be provided with a slot, and the connecting rod 52 is directly connected to the shoulder fixing rod 51 through the limiting hole 524 and the limiting member.

In one embodiment, the shoulder fixing rod 51 has a shoulder fixing section 511 and an adjusting section 512, the upper end of the shoulder fixing section 511 is bent and arranged to be set on the shoulder, the lower end of the shoulder fixing section 511 is telescopically connected with the adjusting section 512 along the up-down direction, after moving to a proper position, the shoulder fixing section 511 is fixed with the adjusting section 512, and the other end of the adjusting section 512 is connected with the connecting rod 52. For the telescopic connection, please refer to the front and rear telescopic connection between the shoulder fixing rod 51 and the connecting rod 52, which will not be described herein. After the shoulder fixing section 511 and the adjusting section 512 are connected in a vertically telescopic manner, the device can adapt to patients with different heights, and also can achieve the effect of flexible use.

In one embodiment, the shoulder fixing assembly 50 is provided with a suction cup 53 at a bottom surface thereof to contact the ground. Specifically, the bottom surface of the connecting rod 52 is provided with a plurality of suction cups 53 to contact with the ground, so that the shoulder fixing assembly 50 can be prevented from being displaced during the operation, thereby better limiting the shoulders and the body of the patient.

The connecting rod 52 may be substantially i-shaped, as described above.

In the embodiment of the present invention, the elbow joint training device may further include an adjusting member 32, a screw rod 31 and a nut 323, wherein the adjusting member 32 is connected to the driving shaft, the nut 323 is sleeved on the screw rod 31 and rotatably connected to the forearm fixing assembly 40, and the screw rod 31 at least has a length component extending along the radial direction of the driving shaft; the threaded rod 31 is rotatably coupled to the adjusting member 32 such that the nut 323 moves along the threaded rod 31 when rotated relative to the adjusting member 32.

The screw 31 is long and its length direction is crossed with the driving shaft of the driving member 20, i.e. the axial direction of the screw 31 is not parallel to the rotation axis of the driving member 20, so that when the position of the nut 323 on the screw 31 is changed, the radial distance between the nut 323 and the rotation axis of the driving member 20 is changed, i.e. the rotation radius of the nut 323 is changed, and thus the rotation radius of the small arm fixing assembly 40 is changed, and the rotation amplitude of the small arm fixing assembly 40 is changed. In the present embodiment, the radial distance between the nut 323 and the rotation axis of the driving member 20 refers to a distance in the radial direction along the driving shaft.

The radial distance between the nut 323 and the driving axis of the driving member 20 can be changed in various ways, for example, in an embodiment, when the screw 31 is rotated, the axial direction of the screw 31 is not displaced, and when the nut 323 is limited to be rotated in the circumferential direction, the nut 323 can be displaced along the axial direction of the screw 31, and the radial distance between the nut 323 assembly and the driving axis of the driving member 20 is changed, so as to change the revolution radius of the forearm fixing assembly 40. In one embodiment, the screw 31 is fixed, the screw 31 is not displaced in the circumferential direction and the axial direction, and the nut 323 can rotate along the circumferential direction of the screw 31, so as to change the position of the screw on the screw 31, and further change the rotation amplitude of the small arm fixing assembly 40. In one embodiment, the screw 31 slides relative to the driving member 20, and the screw 31 moves along its own axis and also moves the nut 323, thereby changing the radial distance between the nut 323 and the driving axis of the driving member 20.

Specifically, the forearm is placed on the forearm fixing assembly 40 and fixed with the forearm fixing assembly 40. The driving member 20 drives the adjusting member 32, the screw 31 and the nut 323 to rotate together, and since the nut 323 is eccentrically arranged relative to the driving axis of the driving member 20, the small arm fixing assembly 40 inevitably revolves together with the adjusting member 32, the screw 31 and the nut 323. Since the forearm fixing member 40 is rotatably coupled to the nut 323, the forearm fixing member 40 does not turn over itself, and the patient's forearm can be maintained in a substantially horizontal state, that is, the forearm fixing member 40 performs a cyclic movement of up, down, and back about the patient's elbow joint, thereby preventing the patient's elbow joint from being sprained. In addition, as the position of the nut 323 in the axial direction of the screw 31 is adjustable, the radial distance between the nut 323 and the driving axis of the driving element 20 can be changed, so that the revolution amplitude of the forearm fixing assembly 40 is changed along with the eccentricity degree of the nut 323, the farther the nut 323 is laterally deviated from the driving axis of the driving element 20, the larger the revolution amplitude of the forearm fixing assembly 40 is, the closer the nut 323 is laterally deviated from the driving axis of the driving element 20, and the smaller the revolution amplitude of the forearm fixing assembly 40 is, thereby meeting the requirements of training intensity of different patients. Since rotation of the forearm fixing member 40 is driven by the drive member 20, there is a force balancing effect with respect to the manual version.

In this embodiment, the screw 31 is fixed to the driving member 20 by the adjusting member 32, so as to facilitate the installation of the screw 31. The adjusting member 32 axially limits the screw 31 and limits the screw 31 from moving axially. When the screw 31 rotates relative to the adjusting member 32, the nut 323 moves along the screw 31, thereby changing the revolution amplitude of the small arm fixing assembly 40.

In one embodiment, the screw 31 is perpendicular to the driving shaft of the driving member 20, so as to avoid the phenomenon that the nut 323 is always concentric with the driving shaft of the driving member 20 due to the concentricity of the screw 31 and the driving shaft of the driving member 20. Alternatively, the screw 31 extends along the radial direction of the driving axis of the driving member 20, and after the screw 31 is rotated for one turn, the displacement of the nut 323 along the radial direction of the driving axis of the driving member 20 is maximum, so that the purpose of quick adjustment can be achieved. Of course, the axial direction of the screw 31 can also be arranged crosswise to the radial direction of the drive axis of the driver 20.

Alternatively, the adjusting member 32 may be in the form of a plate, a block, or a disk, and one end of the screw 31 abuts against the adjusting member 32, so as to axially limit the screw 31. The adjusting member 32 may have a frame shape, a box shape, or the like, and the screw 31 is disposed inside the adjusting member 32, and both ends of the screw 31 are rotatably connected to the adjusting member 32.

To prevent the nut 323 from rotating, in an embodiment, the adjusting member 32 is formed with a limiting opening 3211, the limiting opening 3211 extends along an axial direction of the screw 31, the nut 323 has a connecting shaft 3231, the connecting shaft 3231 protrudes from the limiting opening 3211, and a side edge (referring to a side edge extending along a length direction of the screw 31) of the limiting opening 3211 is used to limit the rotation of the nut 323. Specifically, the nut 323 is in close clearance fit with the side edges of the limit opening 3211, or the nut 323 is in transition fit with the side edges of the limit opening 3211, so that when the screw 31 rotates, the nut 323 abuts against at least one side edge of the limit opening 3211, thereby limiting the rotation of the nut 323 itself, and enabling the nut 323 to only perform the translational movement along the axial direction of the screw 31. In addition, since the nut 323 passes through the limit opening 3211, the screw 31 is obviously disposed corresponding to the limit opening 3211.

In one embodiment, the adjusting member 32 includes a mounting portion 321, a limiting opening 3211 is formed on the mounting portion 321, and the screw 31 is rotatably connected to the mounting portion 321.

Further, the adjusting member 32 further includes a rotating disc 322, and the rotating disc 322 is fixed to the driving member 20. In this embodiment, the turntable 322 is substantially a circular disk and is concentrically disposed with the driving axis of the driving member 20, so that the turntable 322 rotates more stably and the shaking of the turntable 322 during rotation can be reduced. The tight fit between the rotary disc 322 and the drive shaft of the driver 20 prevents relative rotation between the rotary disc 322 and the drive shaft of the driver 20. Optionally, the installation part 321 is fixed deviating from of the turntable 322 the surface of the driving part 20, so that the turntable 322 plays a certain supporting and fixing role for the installation part 321, and the shaking of the installation part 321 can be greatly reduced when the driving shaft of the driving part 20 rotates. Optionally, the mounting portion 321 is attached to the rotary disc 322 and extends along the disc surface of the rotary disc 322, so that the stability of the mounting portion 321 during rotation can be further enhanced.

In one embodiment, the nut 323 has a connecting shaft 3231, and the connecting shaft 3231 may be disposed separately from the nut 323 or integrally formed therewith. The connecting shaft 3231 is rotatably connected to the small arm fixing unit 40. The form of connecting the small arm fixing assembly 40 by the connecting shaft 3231 has an effect of simple structure.

In other embodiments, the connecting shaft 3231 may be integrally formed with the nut 323 frame, and the connecting shaft 3231 may be directly rotatably connected to the arm fixing assembly 40 as a part of the nut 323 frame. In other embodiments, the nut 323 may have a rotation hole for rotatably connecting to the rotation shaft of the small arm fixing assembly 40.

Referring to fig. 1, fig. 2, fig. 3A, fig. 3B, fig. 3C, fig. 4A and fig. 4B, specifically, when the patient uses the apparatus, the nut 323 is adjusted to a position close to the center of the turntable 322 by rotating the adjusting knob 324, that is, the rotation axis of the forearm fixing assembly 40 is close to the center of the turntable 322, and the rotation axis is closer to the rotation axis. The forearm is then placed in the forearm bracket 41 and secured by a strap. When the power switch of the driving member 20 is turned on, the rotating disc 322 starts to rotate at a slow speed, and the patient can see whether the revolution amplitude of the small arm driven by the rotating disc 322 up and down and back and forth can be tolerated, if the swing amount is small, the nut 323 can move along the screw rod 31 by rotating the adjusting knob 324 and gradually deviate from the axis of the driving shaft, so that the swing amplitude of the small arm fixing assembly 40 is increased until the patient considers that the swing amplitude is acceptable. If the patient feels the amount of swing is excessive, the adjustment knob 324 may be rotated in the reverse direction to move the nut 323 in the reverse direction along the screw 31 and gradually closer to the center of the driving shaft, thereby reducing the amount of swing of the forearm fixing assembly 40. The device is simple to operate, capable of performing all-dimensional training and rehabilitation, dynamically adjustable, safe and reliable.

The above is only the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all of which are in the utility model discloses a conceive, utilize the equivalent structure transform that the content of the specification and the attached drawings did, or directly/indirectly use all to include in other relevant technical fields the patent protection scope of the present invention.

Claims

1. An elbow training device, comprising:

a frame;

2. The elbow joint training device according to claim 1, wherein the forearm fixing member comprises a forearm bracket, a connecting arm and a handle, the handle and the forearm bracket are spaced apart in the front-rear direction, the connecting arm connects the forearm bracket and the handle, and an end of the handle is rotatably connected to the transmission member.

3. The elbow joint training device according to claim 2, wherein the forearm fixing member comprises two of the connecting arms which are provided on opposite sides of the forearm bracket and are connected to both ends of the handle, respectively.

4. The elbow training device of claim 1 further comprising a shoulder securing assembly, said shoulder securing assembly being connected to said frame and adapted to be placed on the shoulder.

5. The elbow training device as claimed in claim 4, wherein the shoulder fixing unit comprises a shoulder fixing bar and a connecting bar connected to each other, the shoulder fixing bar being adapted to be rested on the shoulder, the connecting bar being connected to the frame, and the connecting bar having two mounting positions arranged in a front-rear direction;

6. The elbow training device of claim 5, wherein the mounting position is a slot, a notch of the slot is in a front-back direction, and the shoulder fixing rod is inserted into the slot.

7. The elbow training device as claimed in claim 4, wherein the shoulder fixing unit comprises a shoulder fixing rod and a connecting rod, the shoulder fixing rod is adapted to be rested on the shoulder and telescopically coupled to the connecting rod such that the shoulder fixing rod can be moved in the front-rear direction and fixed to the connecting rod after being moved in place, and the connecting rod is coupled to the frame.

8. The elbow joint training device according to claim 7, wherein the shoulder fixing rod has a shoulder fixing section and an adjusting section, the upper end of the shoulder fixing section is bent and arranged to be placed on the shoulder, the lower end of the shoulder fixing section is telescopically connected with the adjusting section in the up-down direction, the shoulder fixing section is fixed with the adjusting section after moving to the proper position, and the other end of the adjusting section is connected with the connecting rod.

9. The elbow training device of claim 4, wherein the shoulder fixing member is provided with a suction cup on a bottom surface thereof to be in contact with the ground.

10. The elbow training device according to any one of claims 1 to 9, wherein the transmission assembly comprises an adjusting member, a screw rod and a nut, the adjusting member is connected with the driving shaft, the nut is sleeved on the screw rod and is rotatably connected with the small arm fixing assembly, and the length direction of the screw rod is crossed with the driving shaft; the screw is rotatably coupled to the adjustment member such that the nut moves along the screw when rotated relative to the adjustment member.