CN110522604B

CN110522604B - Ankle joint training device

Info

Publication number: CN110522604B
Application number: CN201910832778.1A
Authority: CN
Inventors: 田野
Original assignee: Hebei Daai Intelligent Technology Co ltd
Current assignee: Hebei Daai Intelligent Technology Co ltd
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2024-06-18
Anticipated expiration: 2039-09-04
Also published as: CN110522604A

Abstract

The invention discloses an ankle joint training device, comprising: a mounting frame; the driving device is fixed on the mounting frame; the transmission assembly is fixed with a driving shaft of the driving device; and the sole fixing assembly is used for fixing soles, one end of the sole fixing assembly is connected with the transmission assembly through a first universal joint, and the other end of the sole fixing assembly is rotationally connected with the mounting frame through a second universal joint. The technical scheme of the invention can more conveniently carry out rehabilitation training on the ankle joint of the patient and achieve the effect of balancing the strength.

Description

Ankle joint training device

Technical Field

The invention relates to the technical field of medical equipment, in particular to an ankle training device.

Background

Ankle contractures, trauma or post-operative immobilization are required to limit their movement to facilitate rapid repair of soft tissue. In general, various contractures and adhesions occur during the repair of soft tissues, and thus, the patient may develop various degrees of ankle dysfunction after removing the ankle fixing device. Such ankle dysfunction is very common in the clinic. In addition, ankle contracture caused by sequelae of cerebral apoplexy patients becomes a difficult problem for rehabilitation of patients, and ankle dysfunction can greatly influence daily life of the patients, so that rehabilitation training of the ankle of the patients is particularly important.

At present, treatment methods such as loosening, rehabilitation and physical factor therapy are mostly adopted for treating ankle dysfunction, but the treatment effects are not obvious due to unbalanced strength.

Disclosure of Invention

The invention mainly aims to provide an ankle joint training device which aims to more conveniently perform rehabilitation training on the ankle joint of a patient and achieve the effect of balancing strength.

To achieve the above object, the ankle training device according to the present invention comprises:

A mounting frame;

the driving device is fixed on the mounting frame;

The transmission assembly is fixed with a driving shaft of the driving device; and

The sole fixing assembly is used for fixing soles, one end of the sole fixing assembly is connected with the transmission assembly through a first universal joint, and the other end of the sole fixing assembly is connected with the mounting frame in a rotating mode through a second universal joint.

Optionally, the transmission assembly includes a radial adjustment mechanism and a connecting piece, the radial adjustment mechanism is connected with the driving device and the connecting piece respectively, the connecting piece is connected with the first universal joint, and the radial adjustment mechanism can adjust the position of the connecting piece in the radial direction of the driving shaft.

Optionally, radial adjustment mechanism is equipped with the connecting hole, the connecting piece is rectangular form, the periphery of connecting piece is equipped with spacing shaft shoulder, the connecting piece passes the connecting hole, spacing shaft shoulder deviate from drive arrangement one side with radial adjustment mechanism butt, the one end of connecting piece keep away from drive arrangement is equipped with first universal joint.

Optionally, the axial direction of the connecting hole is along the axial direction of the driving shaft.

Optionally, the sole fixing component comprises a sole connecting support and a sole support arranged on the upper surface of the sole connecting support, two ends of the sole connecting support are respectively provided with a fixing shaft, the first universal joint is fixed with one fixing shaft, and the second universal joint is fixed with the other fixing shaft.

Optionally, the sole fixed subassembly is along transversely extending, the mounting bracket includes chassis and sole support frame, drive arrangement fixes the chassis, sole support frame extends up, the lower extreme of sole support frame with the chassis rotates to be connected, and can follow the extending direction round trip oscillation of sole fixed subassembly, the second universal joint is installed the upper end of sole support frame.

Optionally, two mounting plates are arranged on the underframe, two mounting plates are arranged at intervals in the transverse direction, a rotating shaft is arranged on each mounting plate, and the sole support frame stretches into the space between the two mounting plates and is connected with the rotating shaft so as to realize relative rotation between the sole support frame and the underframe.

Optionally, a mounting shaft is arranged at the upper end of the sole support frame, and the second universal joint is in plug-in fit with the mounting shaft.

Optionally, the underframe includes installing support and link, the link extends along transversely, and connects respectively the installing support with the sole support frame, the installing support extends up, drive arrangement fixes the installing support.

Optionally, the chassis further includes a thigh support, the thigh support sets up the link keep away from the one end of installing support, the thigh support extends along upper and lower direction, the upper end of thigh support is equipped with thigh fixed subassembly, thigh fixed subassembly is used for supporting the thigh.

In the invention, the sole is placed on the sole fixing component and is fixed with the sole fixing component. The driving device drives the transmission assembly to rotate, and the sole fixing assembly also follows the transmission assembly to rotate. And because the one end of sole fixed subassembly is connected with drive assembly through first universal joint, and the other end passes through the second universal joint and rotates with the mounting bracket to be connected, consequently when sole fixed subassembly rotated, sole fixed subassembly itself can not overturn, and patient's sole basically can keep the form of sole face upwards, and sole fixed subassembly steady motion like this for patient's atress is balanced, and the treatment is better.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an ankle training device according to an embodiment of the present invention;

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

FIG. 3 is a schematic view of the adjusting member of FIG. 2;

FIG. 4 is an exploded view of the nut assembly of FIG. 2;

FIG. 5 is a schematic view of the ankle training device of FIG. 1 in a motion state;

FIG. 6 is a schematic view of another motion state of the ankle training device of FIG. 1;

FIG. 7 is a schematic view showing the ankle training device of FIG. 1 in use;

Fig. 8 is a schematic view showing a storage state of the ankle training device shown in fig. 1.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "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 a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

The present invention provides an ankle training device, please refer to fig. 1 and 2 in combination, comprising:

A mounting frame 10;

a driving device 20 fixed to the mounting frame 10;

a transmission assembly (not shown) secured to the drive shaft of the drive device 20; and

The sole fixing assembly 50 is configured to fix a sole, one end of the sole fixing assembly 50 is connected to the transmission assembly through a first universal joint 71, and the other end is rotatably connected to the mounting frame 10 through a second universal joint 72.

In the embodiment of the present invention, the mounting frame 10 is generally in a frame structure for mounting other components. For example, the mounting frame 10 may be generally I-shaped, etc., although in other embodiments, the mounting frame 10 may be shaped in other ways, such as a square frame, etc.

The driving device 20 is fixed to the mounting frame 10, in particular by means of screws. For example, the mounting frame 10 is formed with a transverse support plane on which the drive means 20 are placed directly. Or the driving means 20 is fixed to the side of the mounting frame 10.

The drive device 20 has a drive shaft which can be rotated by the drive device 20, the drive shaft having an axis of rotation. The transmission assembly is fixed on the driving shaft of the driving device 20, and the driving shaft of the driving device 20 rotates, so that the transmission assembly is driven to rotate.

At least, the end of the ball attachment assembly 50 adjacent the drive mechanism 20 is offset from the axis of the drive shaft so that the ball attachment assembly 50 can move with the drive shaft when the drive shaft is rotated, and can be displaced in an up-down-left-right direction. Specifically, one end of the sole fixing assembly 50, which is adjacent to the driving device 20, is always offset from the axis of the driving shaft; alternatively, the radial adjustment mechanism may adjust the ball attachment assembly 50 to be offset from the drive shaft when provided, and the radial adjustment mechanism may also adjust the ball attachment assembly 50 to be aligned with the drive shaft.

Specifically, the sole is placed on the sole fixing member 50 and is fixed to the sole fixing member 50. The drive device 20 drives the transmission assembly to rotate, and the sole fixing assembly 50 also follows the transmission assembly to rotate. And because the one end of sole fixed subassembly 50 is connected with drive assembly through first universal joint 71, and the other end passes through second universal joint 72 and is connected with mounting bracket 10 rotation, therefore when sole fixed subassembly 50 rotates, sole fixed subassembly 50 self can not overturn, and patient's sole basically can keep the form of face upwards, and like this sole fixed subassembly 50 steady motion for patient's atress is balanced, and the treatment is better.

In one embodiment, the transmission assembly includes a radial adjustment mechanism and a connecting member 423, the radial adjustment mechanism is respectively connected to the driving device 20 and the connecting member 423, the connecting member 423 is connected to the first universal joint 71, and the radial adjustment mechanism can adjust a position of the connecting member 423 in a radial direction of the driving shaft. Specifically, since the radial distance between the connecting member 423 and the driving shaft is adjustable, the swing amplitude of the sole fixing assembly 50 connected to the connecting member 423 can be changed, so that the swing amplitude of the sole fixing assembly 50 is changed along with the eccentricity (refer to the deviation from the axis of the driving shaft) of the connecting member 423, and the further the connecting member 423 is laterally deviated from the rotation axis of the driving device 20, the larger the swing amplitude of the sole fixing assembly 50 is, the closer the connecting member 423 is laterally deviated from the rotation axis of the driving device 20, and the smaller the swing amplitude of the sole fixing assembly 50 is, thereby adapting to the requirements of training intensity of different patients.

In an embodiment, the radial adjustment mechanism is provided with a connection hole 4211 (as shown in fig. 4), the connection piece 423 is in a strip shape, a limiting shaft shoulder 4231 is disposed on the periphery of the connection piece 423, the connection piece 423 passes through the connection hole 4211, one side of the limiting shaft shoulder 4231, which is away from the driving device 20, abuts against the radial adjustment mechanism to limit the connection piece 423 to move in a direction away from the driving device 20, and one end of the connection piece 423, which is away from the driving device 20, is provided with the first universal joint 71. The mounting manner of the connecting piece 423 has a simple and reliable effect.

In the embodiments of the present invention, the radial adjustment mechanism has various forms, and several forms are specifically described below, but not limited thereto:

In the first embodiment, the radial adjustment mechanism includes a screw 31 assembly and a nut assembly 40, the screw 31 assembly is fixed to the drive shaft, the screw 31 assembly includes a screw 31, the nut assembly 40 is connected to the connecting member 423, the nut assembly 40 includes a nut 41, and the nut 41 is sleeved on the screw 31.

The screw 31 is in a strip shape, and the length direction of the screw 31 is crossed with respect to the driving shaft of the driving device 20, that is, the axial direction of the screw 31 is non-parallel to the rotation axis of the driving device 20, so that when the position of the nut 41 on the screw 31 is changed, the radial distance between the nut 41 and the rotation axis of the driving device 20 is changed, that is, the rotation radius of the nut 41 is changed, and thus the rotation radius of the sole fixing assembly 50 is changed, and the rotation amplitude of the sole fixing assembly 50 is changed. In the present embodiment, the radial distance between the nut 41 and the rotation axis of the driving device 20 refers to the distance in the radial direction along the rotation axis of the driving device 20.

The ball attachment assembly 50 is generally elongated extending in a lateral direction, optionally with an end of the ball attachment assembly 50 remote from the drive device 20 being at the same elevation as the rotational axis of the drive device 20. Thus, when the nut 41 is coaxial with the rotational axis of the driving device 20, the sole fixing assembly 50 extends in the horizontal direction; when the nut 41 is offset from the rotational axis of the drive device 20, the ball attachment assembly 50 is tilted in the lateral direction by a certain angle. Of course, in other embodiments, the end of the ball attachment assembly 50 remote from the driving device 20 may be lower or higher than the rotational axis of the driving device 20.

Specifically, the sole is placed on the sole fixing member 50 and is fixed to the sole fixing member 50. The driving device 20 drives the screw 31 assembly and the nut assembly 40 to rotate together, and the sole fixing assembly 50 must also follow the nut assembly 40 to rotate because the nut assembly 40 is eccentrically arranged relative to the rotation axis of the driving device 20. Because one end of the sole fixing component 50 is rotatably connected with the mounting frame 10, and the other end is rotatably connected with the nut component 40, the sole fixing component 50 can not turn over, and the sole of the patient can basically keep the upward facing form, i.e. the sole fixing component 50 generally performs the up-down and left-right plate movement by taking the heel of the patient as the axis, thereby preventing the ankle of the patient from being sprained. In addition, because the axial position of the nut assembly 40 relative to the screw 31 assembly is adjustable, the radial distance between the nut assembly 40 and the rotation axis of the driving device 20 can be changed, so that the swing amplitude of the sole fixing assembly 50 is changed along with the eccentric degree of the nut assembly 40, the farther the nut assembly 40 is laterally deviated from the rotation axis of the driving device 20, the larger the swing amplitude of the sole fixing assembly 50 is, the closer the nut assembly 40 is laterally deviated from the rotation axis of the driving device 20, and the smaller the swing amplitude of the sole fixing assembly 50 is, thereby adapting to the requirements of training intensity of different patients.

In one embodiment, the screw 31 assembly further includes an adjusting member 32, the adjusting member 32 is connected to the driving device 20, and the screw 31 is rotatably connected to the adjusting member 32, so that the nut 41 moves along the screw 31 when rotating relative to the adjusting member 32. In this embodiment, the screw 31 is fixed on the driving device 20 by the adjusting member 32, so as to facilitate the arrangement of the screw 31. The adjusting member 32 limits the screw 31 in the axial direction, and limits the screw 31 to move in the axial direction. When the screw 31 rotates relative to the adjustment member 32, the nut 41 moves along the screw 31, thereby changing the swing amplitude of the sole fixing assembly 50.

Alternatively, the adjusting member 32 may be in the form of a plate, a block, or a disc, and one end of the screw 31 abuts against the adjusting member 32, so that an axial limiting effect is provided to the screw 31. In addition, the adjusting member 32 may be in a frame shape, a box shape, or the like, 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.

Referring to fig. 3 in combination, in order to prevent the nut 41 from rotating, in one embodiment, the adjusting member 32 is formed with a limiting opening 323, the limiting opening 323 extends along the axial direction of the screw 31, the nut assembly 40 extends from the limiting opening 323, and a side edge of the limiting opening 323 (referred to as a side edge extending along the length direction of the screw 31) is used to limit the rotation of the nut assembly 40. Specifically, a small clearance fit is formed between the nut assembly 40 and the side edge of the limiting opening 323, or a transition fit is formed between the nut assembly 40 and the side edge of the limiting opening 323, so that when the screw 31 rotates, the nut assembly 40 abuts against at least one of the side edges of the limiting opening 323, thereby limiting the rotation of the nut assembly 40, and enabling the nut assembly 40 to perform only translational movement along the axial direction of the screw 31. In addition, since the nut assembly 40 passes through the limiting opening 323, the screw 31 is obviously disposed corresponding to the limiting opening 323.

In the embodiment of the present invention, the form of forming the limiting opening 323 on the adjusting member 32 is various, and the following is exemplified:

In an embodiment, the adjusting member 32 includes two connecting plates 321 and two limiting plates 322, the limiting plates 322 extend along the axial direction of the screw 31, the two limiting plates 322 are arranged at intervals along the circumferential direction of the screw 31, the connecting plates 321 are respectively connected with two limiting plates 322, the two connecting plates 321 are respectively arranged at two ends of the limiting plates 322, and thus the two connecting plates 321 and the two limiting plates 322 are connected to form a similar square frame shape. In this embodiment, the screw 31 is located between the two limiting plates 322 and is rotatably connected to the connecting plate 321. The spacing between the two limiting plates 322 forms the limiting opening 323, and when the screw 31 rotates, the nut assembly 40 can abut against the limiting plates 322, and the limiting plates 322 limit the rotation of the nut assembly 40.

In an embodiment, the limiting opening 323 penetrates through two opposite sides of the adjusting member 32, the screw 31 is disposed on one side of the adjusting member 32, and the screw 31 faces the limiting opening 323, i.e. the limiting opening 323 is seen from the other side of the adjusting member 32, and the screw 31 may be exposed at the limiting opening 323.

In one embodiment, the adjusting member 32 has a long groove formed therein, the long groove extends along the axial direction of the screw 31, the screw 31 is disposed in the long groove, the long groove has a lateral opening, the lateral opening is located on the peripheral side of the screw 31, and the lateral opening forms the limiting opening 323. In one embodiment, the adjusting member 32 is provided with two positioning plates, the two positioning plates are spaced apart, and the spacing between the two positioning plates forms the limiting opening 323.

In order to prevent the screw 31 from moving axially, in one embodiment, the screw 31 assembly further includes two bearings 33, the screw 31 is fixed to an inner ring of the bearings 33, the two bearings 33 are separately disposed at two ends of the screw 31, and an outer ring of the bearings 33 is fixed to the adjusting member 32. Specifically, each of the two connecting plates 321 is provided with a bearing 33, the screw 31 is fixed with the inner ring of the bearing 33, and the inner ring of the bearing 33 is tightly matched with the screw 31, so that the screw 31 can be limited to move along the axial direction thereof. In addition, in the form of the bearing 33, abrasion of the connection plate 321 can be avoided with respect to directly rotationally connecting the screw 31 with the connection plate 321.

In an embodiment, a limiting flange is disposed on the circumferential surface of the screw 31 and near the two ends, and the limiting flange abuts against the inner surface of the connecting plate 321, which also can limit the axial movement of the screw 31. In addition, in the embodiment in which the screw 31 penetrates the connection plate 321, the limit flange may also abut against the outer surface of the connection plate 321. In this embodiment, the inner surface of the connection plate 321 refers to the surfaces of the two connection plates 321 facing each other.

To facilitate the adjustment of the screw 31, the screw 31 passes through the adjusting member 32, specifically, in one embodiment, the screw 31 passes through the two connecting plates 321 outwards, so that the screw 31 can be exposed outside the connecting plates 321 for the user to hold. In addition, an adjusting knob 34 may be disposed at one end of the screw 31, the adjusting knob 34 is fixed to the screw 31, and a user can drive the screw 31 to rotate by rotating the adjusting knob 34. In addition, the screw 31 may be located in two connection plates 321.

In one embodiment, the screw 31 is perpendicular to the drive shaft of the driving device 20, so that the phenomenon that the screw 31 is concentric with the rotation axis of the driving device 20 and the nut 41 is always concentric with the rotation axis of the driving device 20 is avoided. Alternatively, the screw 31 extends along the radial direction of the rotation axis of the driving device 20, so that when the screw 31 is rotated once, the displacement amount of the nut 41 along the radial direction of the rotation axis of the driving device 20 is maximum, and the purpose of rapid adjustment can be achieved. Of course, the axial direction of the screw 31 may be disposed so as to intersect the radial direction of the rotation axis of the driving device 20.

Further, the screw 31 assembly further comprises a turntable 35, the turntable 35 being fixed with the driving means 20. In this embodiment, the turntable 35 is generally circular and is concentric with the rotation axis of the driving device 20, so that the turntable 35 rotates more stably, and the wobble of the turntable 35 during rotation can be reduced. The turntable 35 is a close fit with the drive shaft of the drive unit 20, preventing relative rotation between the turntable 35 and the drive shaft of the drive unit 20. Optionally, the adjusting member 32 is fixed on a surface of the turntable 35 facing away from the driving device 20, so that the turntable 35 plays a role in supporting and fixing the adjusting member 32, and can greatly reduce the shaking of the adjusting member 32 when the driving shaft of the driving device 20 rotates. Optionally, the adjusting member 32 is attached to the turntable 35 and extends along the surface of the turntable 35, so as to further enhance the stability of the adjusting member 32 during rotation. In one embodiment, the adjustment member 32 is secured to the turntable 35 by screws. In addition, the adjustment member 32 and the turntable 35 may be fixed by welding or the like.

Referring to fig. 4 in combination, in an embodiment, the nut assembly 40 further includes a nut frame 42, the nut 41 is fixed on the nut frame 42, a relief hole 4221 is formed in the nut frame 42, the screw 31 passes through the relief hole 4221, and the nut frame 42 is connected with the sole fixing assembly 50. In this embodiment, the nut frame 42 is provided to facilitate connection between the nut assembly 40 and the sole fixing assembly 50. In addition, the nut frame 42 is provided with the relief hole 4221 for the screw 31 to pass through, so that the nut frame 42 is well prevented from being separated from the screw 31. Specifically, the nut 41 and the nut frame 42 may be fixed by welding, and in addition, the nut 41 and the nut frame 42 may be fastened by clamping, for example, a groove is provided on the nut frame 42, the opening of the groove faces the circumferential side of the screw 31, and the nut 41 is embedded in the groove.

In an embodiment, the nut frame 42 includes a first fixing plate 421 and two second fixing plates 422, the two second fixing plates 422 are arranged along the axial direction of the nut 41 at intervals, the two second fixing plates 422 are respectively connected with the first fixing plate 421, the nut 41 is located between the two second fixing plates 422 and is fixed on one of the second fixing plates 422, the two second fixing plates 422 are respectively provided with the abdicating holes 4221, and the first fixing plate 421 is connected with the sole fixing assembly 50.

In an embodiment, the first fixing plate 421 is provided with a connecting hole 4211, the connecting piece 423 extends between the two second fixing plates 422, the connecting piece 423 passes through the connecting hole 4211 and is fixed to the first universal joint 71, and the limiting shoulder 4231 abuts against a surface of the first fixing plate 421 facing away from the sole fixing assembly 50, so as to limit the connecting piece 423 to move in a direction approaching to the sole fixing assembly 50. And since the connecting member 423 is connected to the ball fixing assembly 50, it is apparent that the ball fixing assembly 50 must be larger than the connecting hole 4211, so that the connecting member 423 can be restricted from moving in a direction away from the ball fixing assembly 50. The connecting piece 423 is connected with the sole fixing assembly 50, so that the sole fixing assembly has the effect of simple structure.

In other embodiments, the connecting member 423 may be integrally formed with the nut frame 42, and the connecting member 423 may be directly rotatably coupled to the sole fixing assembly 50 as a part of the nut frame 42. In addition, in other embodiments, the nut frame 42 may be provided with a rotation hole to be rotatably connected to the rotation shaft of the sole fixing assembly 50.

Alternatively, the axial direction of the connection hole 4211 may be along the axial direction of the driving shaft, so as to enhance the driving effect.

In the second embodiment, the radial adjustment mechanism includes a mounting plate, a gear and a rack, the mounting plate is fixed with the drive shaft, the gear is rotatably connected with the mounting plate, the rack is meshed with the gear, and the rack is disposed intersecting with the drive shaft, and the connecting piece 423 is fixed with the rack. The gear is rotated manually or electrically to translate the rack, thereby changing the radial distance between the link 423 disposed on the rack and the drive shaft. For example, the mounting plate is perpendicular to the driving shaft, the rack extends along the plate surface of the mounting plate, the axial direction of the gear is perpendicular to the mounting plate, and an adjusting knob 34 is arranged on the gear for operation by a user.

In a third embodiment, the radial adjustment mechanism includes a mounting plate fixed to the drive shaft and a slider slidably connected to the mounting plate, and the connecting piece 423 is fixed to the slider.

In one embodiment, the sole fixing assembly 50 includes a sole connecting support 51 and a sole support 52 disposed on an upper surface of the sole connecting support 51, and the sole connecting support 51 is rotatably connected to the transmission assembly and the mounting frame 10 respectively. The sole connecting support 51 and the sole support 52 in the present embodiment are generally contoured to better fit the sole of the patient, thereby improving comfort. The sole support 52 and the sole connecting support 51 can be fixed by adopting the modes of bonding, clamping, magic tape or binding tape. Generally, sole support 52 is a soft or resilient member that enhances cushioning. The patient's sole may be secured to sole support 52 by straps.

In one embodiment, two fixing shafts 511 are respectively disposed at two ends of the sole connecting support 51 along the length direction, the first universal joint 71 is fixed to one of the fixing shafts 511, and the second universal joint 72 is fixed to the other fixing shaft 511.

In one embodiment, the mounting frame 10 includes a bottom frame 11 and a sole support frame 12, the sole support frame 12 is rotatably connected to the bottom frame 11, so as to swing along the length direction of the sole fixing assembly 50, and the sole fixing assembly 50 is rotatably connected to the sole support frame 12. Specifically, the ball support frame 12 and the ball attachment assembly 50 are coupled by a second universal joint 72. After the sole support frame 12 is arranged, when the eccentric distance of the nut component 40 relative to the rotation axis of the driving device 20 is adjusted, the sole support frame 12 can adapt to the change of the eccentric distance through swinging, so that the sole fixing component 50 can stably move, and the sole support frame 12 can be generally kept in a state of being stably upwards as the two ends of the sole fixing component 50 are rotationally connected with other components. When training, patient's sole is about taking the heel as the axle and is carried out the vertical left and right direction swing, stretches the ankle at swing in-process, prevents that the ankle from overturning, realizes rehabilitation training effect. In other embodiments, the rotational direction of the ball support frame 12 may also be the same as the rotational direction of the drive shaft of the drive device 20.

In one embodiment, two mounting plates are disposed on the chassis 11, two mounting plates are disposed along a transverse direction at intervals, two rotating shafts are disposed on the mounting plates, and the sole support frame 12 extends between the two mounting plates and is connected with the rotating shafts, so as to realize relative rotation with the chassis 11. In this embodiment, the rotating shaft is fixed to the two mounting plates without rotation, and the sole support frame 12 is rotatably connected to the rotating shaft. In other embodiments, the shaft is rotatably connected to the two mounting plates, and the sole support frame 12 is fixed to the shaft.

In an embodiment, the upper end of the sole support frame 12 is provided with a mounting shaft, and the second universal joint 72 is in plug-in fit with the mounting shaft, and the mounting manner has the effects of simple structure and convenient operation.

In one embodiment, the chassis 11 includes a mounting bracket 111 and a connecting bracket 112, where the connecting bracket 112 extends in a transverse direction and connects the mounting bracket 111 and the sole support 12, respectively, the mounting bracket 111 extends upward, and the driving device 20 is fixed on the mounting bracket 111. Optionally, the connecting frame 112 is in an I shape, and the mounting bracket 111 and the sole support frame 12 are respectively arranged at two ends of the connecting frame 112, so that the stability is better. In addition, the connection frame 112 may also be in the form of a link.

Further, the chassis 11 further includes a thigh bracket 113, the thigh bracket 113 is disposed at an end of the connection frame 112 away from the mounting bracket 111, the thigh bracket 113 extends in an up-down direction, and a thigh fixing assembly 60 is disposed at an upper end of the thigh bracket 113, and the thigh fixing assembly 60 is used for supporting a thigh. Specifically, the sole support frame 12 is disposed between the thigh support 113 and the mounting bracket 111, and is disposed near the thigh support 113. Thigh support 113 is higher than sole support frame 12, and patient's thigh is fixed on thigh fixed subassembly 60, and the shank naturally hangs down, and the sole is stepped on sole fixed subassembly 50. The thigh support 113 is adjustable in length to accommodate patients of different heights.

In one embodiment, the thigh fixing unit 60 includes a thigh connecting support 61 and a thigh support 62 disposed on an upper surface of the thigh connecting support 61, wherein the thigh connecting support 61 is fixed to the thigh support 113 and supported on a bottom surface of the thigh support 62, and the thigh support 62 is in a shape of being concave downward, and is wrapped around an outer thigh of the patient.

In an embodiment, the driving device 20 is further connected with a remote controller 80, and the remote controller 80 is electrically connected with the driving device 20 to control the driving device 20 to rotate forward, rotate backward, stop, adjust the rotation speed, and so on.

In the embodiment of the present invention, the driving device 20 is a motor, the driving shaft is a motor shaft, the rotation axis of the driving device 20 refers to the rotation axis of the motor shaft, and the radial direction of the rotation axis refers to the radial direction of the driving shaft. Further, the driving device 20 may be a cylinder or other device capable of providing power.

Referring to fig. 5 to 8, in particular, when the patient uses the device, the patient first rotates the adjusting knob 34 to adjust the nut assembly 40 to the center position of the turntable 35, i.e. the front end of the sole fixing assembly 50 is located at the center position of the turntable 35. The sole is then placed in the sole support 52 and secured by straps, while the thigh placed in the thigh support 62 is secured by straps. The power switch of the drive device 20 is turned on, and the apparatus is turned on by the remote controller 80. The turntable 35 starts to rotate at a very slow speed, so that the patient can feel whether the swing amplitude of the turntable 35 driving the sole up, down, left and right can be born, if the swing amplitude is small, the nut assembly 40 can move along the screw 31 by rotating the adjusting knob 34 and gradually deviate from the center of the motor shaft, and the swing amplitude of the front end of the sole fixing assembly 50 is increased until the patient thinks that the patient can accept the swing amplitude. If the patient feels that the swing amount is excessively large, the adjustment knob 34 may be reversely rotated to reversely move the nut assembly 40 along the screw 31 and gradually approach the center of the motor shaft, thereby reducing the swing amount of the front end of the ball fixing assembly 50. The device is simple to operate, is used for comprehensive training and rehabilitation, is dynamically adjustable, and is safe and reliable.

The foregoing description of the preferred embodiments of the present invention should not be construed as limiting the scope of the invention, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).

Claims

1. An ankle training device, comprising:

A mounting frame;

the driving device is fixed on the mounting frame;

The sole fixing assembly is used for fixing soles, one end of the sole fixing assembly is connected with the transmission assembly through a first universal joint, and the other end of the sole fixing assembly is rotationally connected with the mounting frame through a second universal joint;

The transmission assembly comprises a radial adjusting mechanism and a connecting piece, the radial adjusting mechanism is respectively connected with the driving device and the connecting piece, the connecting piece is connected with the first universal joint, and the radial adjusting mechanism can adjust the position of the connecting piece in the radial direction of the driving shaft;

The radial adjusting mechanism comprises a screw rod assembly and a nut assembly, the screw rod assembly is fixed with the driving shaft, the screw rod assembly comprises a screw rod and an adjusting piece, the adjusting piece is connected with the driving device, the screw rod is rotationally connected with the adjusting piece, the screw rod is in a strip shape, the length direction of the screw rod is in a cross arrangement relative to the driving shaft, and one end of the screw rod is provided with an adjusting knob;

The nut component is connected with the connecting piece and comprises a nut, and the nut is sleeved on the screw;

The screw assembly further comprises a rotary table, the rotary table is fixed with the driving device, the adjusting piece is fixed on the surface of the rotary table, which is away from the driving device, and the adjusting piece is attached to the rotary table and extends along the surface of the rotary table.

2. The ankle joint training device according to claim 1, wherein the radial adjustment mechanism is provided with a connecting hole, the connecting piece is in a strip shape, a limiting shaft shoulder is arranged on the periphery of the connecting piece, the connecting piece penetrates through the connecting hole, one side, away from the driving device, of the limiting shaft shoulder is abutted to the radial adjustment mechanism, and one end, away from the driving device, of the connecting piece is provided with the first universal joint.

3. The ankle training device according to claim 2, wherein the axial direction of the connecting hole is along the axial direction of the driving shaft.

4. The ankle training device according to claim 1, wherein the sole fixing member includes a sole connecting bracket and a sole bracket provided on an upper surface of the sole connecting bracket, both ends of the sole connecting bracket are each provided with a fixing shaft, the first universal joint is fixed to one of the fixing shafts, and the second universal joint is fixed to the other fixing shaft.

5. The ankle training device according to claim 1, wherein the sole fixing member extends in a lateral direction, the mounting frame includes a base frame and a sole support frame, the driving device is fixed to the base frame, the sole support frame extends upward, a lower end of the sole support frame is rotatably connected to the base frame and is capable of swinging back and forth in an extending direction of the sole fixing member, and the second universal joint is mounted to an upper end of the sole support frame.

6. The ankle training device according to claim 5, wherein the underframe is provided with two mounting plates, the two mounting plates are arranged at intervals in the transverse direction, the two mounting plates are provided with rotating shafts, and the sole support frame extends into between the two mounting plates and is connected with the rotating shafts so as to realize relative rotation with the underframe.

7. The ankle training device according to claim 5, wherein the upper end of the sole support frame is provided with a mounting shaft, and the second universal joint is in plug-in fit with the mounting shaft.

8. The ankle training device according to claim 5, wherein the base frame includes a mounting bracket and a connecting frame, the connecting frame extends in a lateral direction and connects the mounting bracket and the sole support frame, respectively, the mounting bracket extends upward, and the driving device is fixed to the mounting bracket.

9. The ankle training device as set forth in claim 8, wherein the base frame further comprises a thigh bracket provided at an end of the connection frame remote from the mounting bracket, the thigh bracket extending in an up-down direction, an upper end of the thigh bracket being provided with a thigh fixing assembly for supporting a thigh.