CN220175333U

CN220175333U - Energy accumulator and ankle and foot orthosis

Info

Publication number: CN220175333U
Application number: CN202320143552.2U
Authority: CN
Inventors: 邓贤; 刘千千; 付林思雨; 邓文文
Original assignee: Jiangxi Xingzhi Intelligent Technology Co ltd
Current assignee: Jiangxi Xingzhi Intelligent Technology Co ltd
Priority date: 2023-02-07
Filing date: 2023-02-07
Publication date: 2023-12-15
Anticipated expiration: 2033-02-07

Abstract

The utility model provides an energy accumulator and an ankle-foot orthosis, belonging to the technical field of rehabilitation equipment; the energy accumulator comprises a shell, a functional wheel rotationally connected with the shell, a tube body communicated with a containing cavity of the shell, an elastic piece arranged in the tube body and an adjusting piece arranged on the tube body, wherein the shell and the functional wheel are respectively and fixedly arranged on the shoe fixing device and the shank fixing device or respectively and fixedly arranged on the shoe fixing device and the shank fixing device; one end of the elastic piece is connected with the connecting part of the functional wheel, the other end of the elastic piece is connected with the adjusting piece, and the elastic piece is used for realizing energy storage or energy release when the functional wheel and the shell rotate relatively so as to ensure the gait stability of a wearer wearing the ankle foot orthosis when walking, thereby solving the defects that the prior energy storage device on the ankle foot orthosis with the function of assisting ankle joint rehabilitation is complex in structural design and poor in adjustable convenience.

Description

Energy accumulator and ankle and foot orthosis

Technical Field

The utility model belongs to the technical field of rehabilitation equipment, and particularly relates to an energy accumulator and an ankle-foot orthosis adopting the same.

Background

The ankle foot orthosis is a device for preventing and assisting treatment of ankle joint deformity, and mainly has the functions of maintaining joint stability, enhancing muscle movement capacity, preventing limb deformity, preventing joint injury and the like. The prior ankle-foot orthosis achieves the aim of stabilizing the joint by limiting the movement capacity of the ankle joint, prevents the joint from being damaged, and has fewer products in the aspect of assisting the movement rehabilitation of the ankle joint.

The ankle-foot orthosis with the function of assisting ankle rehabilitation in the prior art is generally provided with a shoe fixing device and a shank fixing device which are connected with each other, when the ankle-foot orthosis is worn, the shank fixing device is bound on the shank of a patient, and the foot of the patient is worn in the shoe fixing device. In order to realize the ankle joint rehabilitation assisting function, the energy accumulator is additionally arranged, the tension between the shank fixer and the shoe fixing device can be adjusted through the energy accumulator according to gait training of a user, meanwhile, assistance is provided for the user, and the requirement of necessary dorsum flexion movement in walking rehabilitation movement of the wearer is met. However, the energy accumulator on the ankle-foot orthosis with the function of assisting ankle rehabilitation is complex and complicated in structural design, poor in adjustable convenience and poor in performance, and influences the wearing experience and the appearance attractiveness of the ankle-foot orthosis product.

Therefore, there is a need for an improved and optimized energy storage structure for ankle and foot orthoses with auxiliary ankle rehabilitation in the prior art.

Disclosure of Invention

In order to solve the technical problems, the utility model provides the energy accumulator which has the advantages of simple structure and high adjustable convenience.

In one aspect, the utility model provides an energy accumulator for an ankle-foot orthosis, the ankle-foot orthosis comprising a shoe fixing device and a shank fixing device, the energy accumulator comprising a shell, a functional wheel rotationally connected with the shell, a tube body communicated with a containing cavity of the shell, an elastic piece arranged in the tube body and an adjusting piece arranged on the tube body;

wherein the shell and the functional wheel are respectively and fixedly arranged on the shoe fixing device and the shank fixing device or respectively and fixedly arranged on the shoe fixing device and the shank fixing device; one end of the elastic piece is connected with the connecting part of the functional wheel, the other end of the elastic piece is connected with the adjusting piece, the adjusting piece is used for adjusting the initial pre-tensioning force of the elastic piece, and the elastic piece is used for realizing energy storage or energy release when the functional wheel and the shell rotate relatively so as to ensure the gait stability of a wearer wearing the ankle-foot orthosis when walking.

Compared with the prior art, the utility model has the beneficial effects that: the wearer wearing the ankle foot orthosis with the energy accumulator drives the shell to rotate relatively relative to the functional wheel in the process of standing and walking foot pedaling of the legs of the wearer, so that the elastic piece is pulled up to deform to store energy, and the elastic piece automatically releases the energy to drive the feet of the wearer to dorsiflex when the feet of the wearer leave the ground in the walking process of the wearer, thereby realizing the foot lifting action for assisting the stability of the wearer and achieving the aim of improving the stability of the wearer in the standing and walking processes; in addition, the initial pre-tensioning force of the elastic piece can be adaptively adjusted by a wearer according to a specific rehabilitation stage through adjustment of the force adjusting piece, so that the universality of the ankle foot orthosis is improved; the energy accumulator has the advantages of simple structural design and high adjustable convenience on the basis of energy storage and energy release characteristics.

Preferably, the adjusting piece comprises a pressing block fixedly arranged at the pipe orifice of the pipe body and a knob in threaded connection with the pressing block, and the threaded part of the knob penetrates through a threaded hole formed in the pressing block to be connected with one end of the elastic piece, so that the initial pre-tensioning force of the elastic piece is adjusted through adjusting the knob.

Preferably, the pipe wall of the pipe body corresponding to the pressing block is provided with a through hole, and the fastener penetrates through the through hole and is fixed on the pressing block, so that the pressing block is fixed in the pipe body.

Preferably, the threaded portion of the knob and the elastic member are received by a rotary joint.

Preferably, an avoidance groove is dug on the side wall of the functional wheel part of the functional wheel, a connecting column is arranged in the avoidance groove, and the elastic piece is connected with the connecting column through a connecting strip; the avoidance groove is used for providing a movable space required by the connection strip to swing along with the deformation of the elastic piece.

Preferably, the shell is provided with a perforation extending along the length direction of the pipe body, the inner cavity of the pipe body is communicated with the accommodating cavity of the shell through the perforation, and the elastic piece penetrates through the perforation to be connected with the connecting strip.

Preferably, the inner wall surface of the shell is provided with a round boss towards one side of the functional wheel in a protruding mode, and the round boss is in interference fit with the bearing inner ring on the functional wheel, so that the shell is connected with the functional wheel in a rotating mode through a bearing.

Preferably, the elastic piece is a tension spring.

In another aspect, the utility model provides an ankle-foot orthosis comprising a shank anchor, a shoe anchor and said energy store as described above; the shell and the functional wheel are respectively and fixedly arranged on the shank fixer and the shoe fixing device or respectively and fixedly arranged on the shoe fixing device and the shank fixer.

Compared with the prior art, the utility model has the beneficial effects that: the wearer wearing the ankle foot orthosis with the energy accumulator drives the shell to rotate relatively relative to the functional wheel in the process of standing and walking foot pedaling of the legs of the wearer, so that the elastic piece is pulled up to deform to store energy, and the elastic piece automatically releases the energy to drive the feet of the wearer to dorsiflex when the feet of the wearer leave the ground in the walking process of the wearer, thereby realizing the foot lifting action for assisting the stability of the wearer and achieving the aim of improving the stability of the wearer in the standing and walking processes; on the basis that the ankle foot orthosis stores energy and releases energy through the energy accumulator, the wearing experience and the appearance attractiveness of the ankle foot orthosis product are further improved.

Drawings

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

FIG. 1 is a perspective view of an ankle-foot orthosis according to embodiment 1 of the present utility model;

fig. 2 is a perspective view of an accumulator according to embodiment 1 of the present utility model;

fig. 3 is a perspective view of a housing provided in embodiment 1 of the present utility model;

fig. 4 is a perspective view of an accumulator (without a housing) according to embodiment 1 of the present utility model;

FIG. 5 is an enlarged schematic view of a portion of the mark A of FIG. 4;

fig. 6 is a perspective view of an ankle-foot orthosis according to embodiment 2 of the present utility model.

Reference numerals illustrate:

10-a shoe fixing device;

20-energy accumulator, 21-shell, 211-perforation, 212-round boss, 22-functional wheel, 221-connecting part, 222-avoidance groove, 223-connecting column, 23-tube body, 24-elastic piece, 25-adjusting piece, 251-press block, 252-knob, 26-fastener, 27-rotary joint and 28-connecting strip;

30-shank fixation device.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended to illustrate embodiments of the utility model and should not be construed as limiting the utility model.

In the description of the embodiments of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the embodiments of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are 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 one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

Example 1

As shown in fig. 1 and 2, the present embodiment provides an ankle-foot orthosis including a shoe holder 10, an energy accumulator 20, and a shank holder 30. Wherein the accumulator 20 comprises a housing 21 and a functional wheel 22 rotatably connected to the housing 21. Specifically, the housing 21 is mounted on the shank holder 30, and the function wheel 22 is mounted on the shoe holder 10. It should be noted that the focus of the present utility model is on the structure of the energy storage device, but the structures of the shank holder and the shoe holder of the ankle-foot orthosis are not the focus of the present utility model, so the structures of the shank holder and the shoe holder are not repeated.

As shown in fig. 2 and 3, a circular boss 212 is protruding from the inner wall surface of the housing 21 toward one side of the functional wheel 22, and the middle position of the functional wheel 22 is mounted on a bearing, so that the housing 21 is rotationally connected with the functional wheel 22 through the bearing under the driving of an external force. In particular practice, the wearer of the ankle-foot orthosis, during the erection of his legs and during the walking of the wearer, leaves the foot on the ground, so that the shell 21 is brought into relative rotation with respect to the functional wheel 22 by the shank holder 30.

As shown in fig. 3 and 4, the accumulator 20 includes the housing 21, the function wheel 22, a tube 23, an elastic member 24, and an adjusting member 25. In this embodiment, the tube 23 is disposed on the housing 21, and the inner cavity of the tube is communicated with the accommodating cavity of the housing 21, and preferably, the tube 23 and the housing 21 are integrally injection molded; the elastic member 24 is accommodated in the inner cavity of the pipe body 23, and the adjusting member 25 is rotatably disposed at the pipe orifice of the pipe body 23. Specifically, the pipe wall of the pipe body 23 corresponding to the pressing block 251 is provided with a through hole, and the fastening piece 26 is fixed on the pressing block 251 through the through hole, so that the pressing block 251 is fixed in the pipe body 23.

Further, one end of the elastic member 24 is connected to the connection part 221 of the function wheel 22, the other end thereof is connected to the adjusting member 25, the elastic member 24 is used for storing or releasing energy when the function wheel 22 rotates relative to the housing 21, and the initial pretension of the elastic member 24 is adjusted by the adjusting member 25. Preferably, the elastic member 24 is embodied as a tension spring. The energy accumulator of the embodiment has the characteristics of simple structural design on the basis of energy storage and energy release characteristics.

Further, the adjusting member 25 includes a pressing block 251 fixed at the pipe orifice of the pipe body 23 and a knob 252 screwed with the pressing block 251. The threaded portion of the knob 252 passes through a threaded hole formed in the pressing block 251 to be connected with one end of the elastic member 24. Specifically, since the pressing block 251 is fixed in the pipe body 23, the knob 252 is adjusted to screw in or screw out the threaded portion of the knob 252 relative to the pressing block 251, so as to adjust the pretension force of the elastic member 25 in the initial state, so that the wearer can conveniently adjust the initial pretension force of the elastic member 25 according to the specific rehabilitation stage of the wearer, and the application range of the ankle-foot orthosis is improved.

Further, in order to reduce the resistance caused by the rotation of the elastic member 24 itself when the initial pretension force is adjusted, the present embodiment uses a rotary joint 27 between the threaded portion of the knob 252 and the elastic member 24 to prevent the elastic member 24 from rotating during the adjustment process, thereby preventing the energy storage from being lost.

As shown in fig. 5, the connecting portion 221 of the functional wheel 22 is provided with a relief groove 222 from a side wall thereof, and a connecting column 223 is disposed in the relief groove 222. One end of the elastic member 24 is connected to the connecting post 223 through a connecting bar 28, and the space required for deformation of the elastic member 24 can be further reduced by the arrangement of the connecting bar 28. Of course, the arrangement of the connecting strip 28 requires a certain deformation avoidance space due to the fact that the connecting strip 28 is matched with the elastic member 24, and in this embodiment, the movement space required by the swinging of the connecting strip 28 along with the deformation of the elastic member 24 is provided by the arrangement of the avoidance groove 222.

As shown in fig. 4 and 5, the function wheel 23 has an axisymmetric structure, and the symmetry axis of the function wheel is perpendicular to the center line of the tube 23 in the initial state of the two function wheels, and the axis of the connecting post 223 intersects with the symmetry axis of the function wheel 22. In this embodiment, in the initial state of the accumulator 20, the symmetry axis of the function wheel 22 is perpendicular to the center line of the tube 23, so that the elastic member 24 is only subjected to the tensile force along the length direction thereof in this state, so that the knob 252 can be easily adjusted to adjust the initial pre-tensioning force of the elastic member 24.

As shown in fig. 2 and 3, the housing 21 is provided with a through hole 211 extending along the length direction of the tube 23, and the inner cavity of the tube 23 is communicated with the accommodating cavity of the housing 21 through the through hole 211, so that one end of the elastic member 24 passes through the through hole 211 to be connected with the functional wheel 22.

The working principle of the embodiment is as follows: after the ankle foot orthosis is worn by a wearer, when the wearer stands up, namely the legs of the wearer are in a standing process, the shank fixer drives the shell to rotate clockwise relative to the shoe fixer, and the functional wheel is fixed on the shoe fixer, so that the functional wheel synchronously rotates clockwise relative to the shell along with the shoe fixer, the elastic piece is pulled up to deform to realize an energy storage effect, and after the wearer stands up completely, the elastic piece is in a maximum pulling-up state at the moment, and the energy storage operation is completed; when the wearer is ready to walk, the elastic piece drives the shell to rotate anticlockwise relative to the functional wheels through the stored energy after the feet completely leave the ground, and the legs of the wearer are driven to bend so as to assist the wearer in stably lifting the feet, so that the purpose of improving the stability of the wearer in standing and walking processes is achieved.

In summary, when the ankle foot orthosis with the energy accumulator is worn by a wearer, the shank fixer drives the shell to rotate relative to the functional wheel in the leg standing process, so that the elastic piece is pulled up to deform to store energy, and when the foot leaves the ground in the walking process of the wearer, the elastic piece automatically releases the energy to drive the leg of the wearer to bend so as to assist the wearer to stably lift the foot. In addition, the initial pre-tensioning force of the elastic piece can be adjusted by adjusting the force adjusting piece in an adaptive manner according to the specific rehabilitation stage by a wearer, so that the universality of the ankle foot orthosis is improved.

Example 2

As shown in fig. 6, the present embodiment provides an ankle-foot orthosis including a shoe holder 10, an accumulator 20, and a shank holder 30. Specifically, this embodiment is different from embodiment 1 in that: the housing of the accumulator 20 is mounted on the shoe holder 10, and the functional wheel is mounted on the shank holder 30, and other structures are the same as those of embodiment 1, so that the details are not repeated here. It should be noted that, the working principle of the present embodiment is similar to that of embodiment 1, and reference may be made to the working principle of embodiment 1, so that details are not repeated here.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. An energy accumulator is used for an ankle-foot orthosis, which comprises a shoe fixing device and a shank fixer, and is characterized by comprising a shell, a functional wheel rotationally connected with the shell, a tube body communicated with a containing cavity of the shell, an elastic piece arranged in the tube body and an adjusting piece arranged on the tube body;

wherein the shell and the functional wheel are respectively fixedly arranged on a shoe fixing device or a shank fixing device; one end of the elastic piece is connected with the connecting part of the functional wheel, the other end of the elastic piece is connected with the adjusting piece, the adjusting piece is used for adjusting the initial pre-tensioning force of the elastic piece, and the elastic piece is used for realizing energy storage or energy release when the functional wheel and the shell rotate relatively so as to ensure the gait stability of a wearer wearing the ankle-foot orthosis when walking.

2. The energy accumulator according to claim 1, wherein the adjusting member includes a pressing block fixedly provided at a pipe orifice of the pipe body and a knob screw-connected to the pressing block, and a screw portion of the knob is connected to one end of the elastic member through a screw hole formed in the pressing block, so that an initial pretension of the elastic member is adjusted by adjusting the knob.

3. The energy accumulator of claim 2, wherein the tube body has a through hole formed in a wall thereof corresponding to the press block, and a fastener is fixed to the press block through the through hole to fix the press block in the tube body.

4. The accumulator of claim 2, wherein the threaded portion of the knob and the spring are received by a rotary joint.

5. The energy accumulator of claim 1, wherein the side wall of the functional wheel part of the functional wheel is provided with an avoidance groove, a connecting column is arranged in the avoidance groove, and the elastic piece is connected with the connecting column through a connecting strip; the avoidance groove is used for providing a movable space required by the connection strip to swing along with the deformation of the elastic piece.

6. The energy accumulator of claim 5, wherein the housing is provided with a through hole extending along a length direction of the tube, the inner cavity of the tube is communicated with the accommodating cavity of the housing through the through hole, and the elastic member is connected with the connecting strip through the through hole.

7. The energy accumulator of claim 1, wherein the inner wall surface of the housing is provided with a circular boss protruding toward one side of the function wheel, and the circular boss is in interference fit with an inner bearing ring on the function wheel, so that the housing is rotationally connected with the function wheel through a bearing.

8. The energy storage device of any one of claims 1-7, wherein the resilient member is a tension spring.

9. An ankle-foot orthosis comprising a shoe holder and a shank holder, characterized in that it further comprises the energy store according to any one of claims 1 to 8; the shell and the functional wheel are respectively and fixedly arranged on the shank fixer and the shoe fixing device or respectively and fixedly arranged on the shoe fixing device and the shank fixer.