CN112773668A

CN112773668A - Knee joint assistance rehabilitation device

Info

Publication number: CN112773668A
Application number: CN202110125483.8A
Authority: CN
Inventors: 张蓓; 赵吉宇; 管奕; 田云龙
Original assignee: Wuhan Zhongyile Technology Co ltd
Current assignee: Wuhan Software Engineering Vocational College Wuhan Open University; Wuhan Zhongyile Technology Co ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-05-11
Anticipated expiration: 2041-01-29
Also published as: CN112773668B

Abstract

The invention is suitable for the field of rehabilitation equipment, and provides a knee joint power-assisted rehabilitation device, which includes a waist support, a thigh transmission mechanism is connected to a rotating shaft at the bottom of the waist support, a wearing ring is installed at the bottom of the thigh transmission mechanism, and a lower part of the wearing ring is arranged There is a thigh support, both sides of the thigh support are provided with a length adjustment mechanism, the wearing ring is connected to the length adjustment mechanism on one side, the bottom of the length adjustment mechanism is connected with an angle adjustment mechanism, and the angle adjustment mechanism is connected with a The calf bracket, the bottom shaft of the calf bracket is connected with a foot bracket. The device adopts a wearable design, which is more convenient to use and is not restricted by the location. It relies on a light motor to provide power, instead of skeletal muscle, it transmits the power to the femur and tibia to drive the human body. Walk more briskly.

Description

Knee joint assistance rehabilitation device

Technical Field

The invention belongs to the field of rehabilitation instruments, and particularly relates to a knee joint power-assisted rehabilitation device.

Background

After knee joint trauma, surgery and long-term fixation, flexion limitation of the knee joint often occurs, active exercise is needed, otherwise knee joint stiffness can be developed, and long-term dysfunction is caused. In order to restore the flexion function of the knee joint, it is required to be trained on the purpose. The rehabilitation device is needed to be used for rehabilitation training, the main functions of the existing rehabilitation device are concentrated on the rehabilitation training of the lower limbs, and the products mainly aim at the treatment of patients, cannot provide assistance walking, and are large in size and single in function.

Disclosure of Invention

In view of the above problems, the present invention provides a knee joint power-assisted rehabilitation device, which aims to solve the technical problems of large volume, single function and incapability of providing power-assisted walking of the existing knee joint power-assisted rehabilitation device.

The invention adopts the following technical scheme:

the knee joint helping hand rehabilitation ware includes the waist support, waist support bottom pivot is connected with thigh drive mechanism, the ring of wearing is installed to thigh drive mechanism bottom, it is equipped with the thigh support to dress ring below, thigh support both sides all are equipped with length adjustment mechanism, wear the ring and be connected to the length adjustment mechanism of one side wherein, the length adjustment mechanism bottom is connected with angle adjusting mechanism, angle adjusting mechanism is connected with the shank support, and shank support bottom pivot is connected with the foot support.

Further, angle adjustment mechanism includes interior chuck and outer chuck, the inside chuck is equipped with the center post outward, outer chuck is ring structure and supporting installation to the center post on, the outside of outer chuck is inwards sunken to be formed with the mounting groove, be equipped with the baffle in the mounting groove, the baffle passes through fix with screw to the center post, be equipped with round evenly distributed's draw-in groove in the outer chuck, center post central authorities have seted up the spout, be equipped with in the spout with draw-in groove assorted slip fixture block, the direction mouth has been seted up on the baffle, the slip fixture block outside exposes the direction mouth.

Further, thigh drive mechanism includes the casing, be equipped with thigh transmission steering wheel, first gear and second gear in the casing, the output of thigh transmission steering wheel is connected with the worm, the worm meshes with first gear mutually, first gear meshes with the second gear mutually, thigh drive mechanism still includes the connecting block, the connecting block passes the casing and corresponds the joint with the second gear, waist support bottom is fixed extremely the connecting block.

Further, the length adjusting mechanism comprises fixed plates fixed on two sides of the thigh support, wherein the fixed plate on one side penetrates through the wearing ring and is fixed to the bottom of the shell of the thigh transmission mechanism, a movable plate is arranged on the surface of the fixed plate, guide grooves are formed in the fixed plate and the movable plate, a fixed column penetrates into the guide grooves, an adjusting buckle capable of sliding left and right penetrates into the bottom of the movable plate, a plurality of clamping ports are formed in one side of the movable plate, clamping blocks corresponding to the clamping ports are arranged in the adjusting buckle, a push-pull block is arranged on one side of the adjusting buckle, the bottom of the movable plate is fixed to an outer chuck on the corresponding side, the length adjusting mechanism further comprises a side cover used for wrapping the whole fixed plate, the movable plate and the adjusting buckle, the push-pull port is formed in the bottom angle position of the side cover.

Furthermore, a limiting notch is formed at the position, close to the top, of the movable plate, and a limiting column is arranged at the limiting notch.

Furthermore, a connecting rod is fixed at the bottom of the inner chuck, a shank transmission steering engine is fixed on the back of the shank support, and the bottom of the connecting rod is in transmission connection with the output end of the shank transmission steering engine.

The invention has the beneficial effects that: the invention provides a knee joint power-assisted rehabilitation device which is in a wearable design, is more convenient to use and is not restricted by places, and the power is provided by a light motor, replaces skeletal muscles to transmit the power to femur and tibia parts, and drives a human body to walk more lightly; the equipment is internally integrated, and can be easily worn by a single person without other accessories; the size is small and exquisite relatively, the wearing is simple, and the application occasions are wider; the device has two use modes of full automation and semi-automation, and can simultaneously realize the assistance help in rehabilitation exercise and daily life.

Drawings

Fig. 1 is a structural diagram of an angle of a knee joint assistance rehabilitation device provided by an embodiment of the invention;

FIG. 2 is a structural diagram of another angle of the knee joint assistance rehabilitation device provided by the embodiment of the invention;

FIG. 3 is a block diagram of an angle adjustment mechanism provided in an embodiment of the present invention;

FIG. 4 is an exploded view of an angle adjustment mechanism provided by an embodiment of the present invention;

FIG. 5 is a block diagram of an outer chuck provided in accordance with an embodiment of the present invention;

fig. 6 is a structural view of a thigh transmission mechanism provided in the embodiment of the invention;

fig. 7 is an exploded view of a thigh transmission provided by an embodiment of the present invention;

FIG. 8 is a block diagram of a side cover provided by an embodiment of the present invention;

FIG. 9 is a block diagram of a length adjustment mechanism provided in an embodiment of the present invention;

fig. 10 is a structural diagram of an adjusting buckle according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In order to explain the technical means of the present invention, the following description will be given by way of specific examples.

Fig. 1 shows a structure of a knee joint assistance rehabilitation apparatus provided by an embodiment of the present invention, and only the portions related to the embodiment of the present invention are shown for convenience of description.

As shown in fig. 1 and 2, the knee joint helping-hand rehabilitation device provided by the embodiment comprises a waist support 1, a thigh transmission mechanism 2 is connected to a rotating shaft at the bottom of the waist support 1, a wearing ring 3 is installed at the bottom of the thigh transmission mechanism 2, a thigh support 4 is arranged below the wearing ring 3, length adjusting mechanisms 5 are arranged on two sides of the thigh support 4, the wearing ring 3 is connected to the length adjusting mechanism 5 on one side of the wearing ring, an angle adjusting mechanism 6 is connected to the bottom of the length adjusting mechanism 5, the angle adjusting mechanism 6 is connected with a shank support 7, and a foot support 8 is connected to a rotating shaft at the bottom of the shank support 7.

In this embodiment, adopt whole wearing formula design, wear promptly, charging source is built-in, does not receive service environment restriction, and power adopts micro motor, will drive the power of low limbs motion and decompose, changes orbit, speed and dynamics through the gear train, makes the micro motor produce great power to promote the thigh and move about. The device integrates a power mechanism on the transmission devices at two positions of a large leg and a small leg, the power is increased at the position of the thigh by adopting a multi-stage gear set, and the stability is improved at the position of the shank by adopting the simultaneous transmission of the left side and the right side. When the waist support is used, the waist support is fixed between the waist and does not move during transmission, so that the waist support plays a role of a fulcrum, and the waist fixing belt is made of cotton cloth and other materials, so that the waist support is beneficial to being attached to a human body and brings comfort; the wearing ring is of a buckle type structure and can be freely loosened or clamped, and one end of the wearing ring is provided with a plurality of clamping teeth, so that the length can be adjusted.

As shown in fig. 3-5, the angle adjusting mechanism 6 includes an inner chuck 61 and an outer chuck 62, the inner chuck 61 is provided with a central column 63, the outer chuck 62 is of an annular structure and is mounted on the central column 63 in a matching manner, an installation groove is formed in the outer side of the outer chuck 62 in an inward recessed manner, a baffle plate 64 is arranged in the installation groove, the baffle plate 64 is fixed to the central column 63 through screws, a circle of clamping grooves 65 are uniformly distributed in the outer chuck 62, a sliding groove is formed in the center of the central column 63, a sliding clamping block 66 matched with the clamping groove 65 is arranged in the sliding groove, a guide opening is formed in the baffle plate 64, and the outer side of the sliding clamping block 66 is exposed out of. Under normal conditions, the sliding clamping block does not need to be locked into the clamping groove, and the outer chuck and the inner chuck are connected through the rotating shaft so that the thigh and the shank can be bent normally; when the shank is bent to a certain degree, the sliding clamping block is pushed to lock the shank into the clamping groove, the outer clamping disc and the inner clamping disc are locked, and the device can play a role in replacing gypsum.

As shown in fig. 6 and 7, the thigh transmission mechanism 2 includes a housing 21, a thigh transmission steering gear 22, a first gear 23 and a second gear 24 are arranged in the housing 21, an output end of the thigh transmission steering gear 22 is connected with a worm 25, the worm 25 is meshed with the first gear 23, the first gear 23 is meshed with the second gear 24, the thigh transmission mechanism 2 further includes a connecting block 26, the connecting block 26 penetrates through the housing 21 and is correspondingly clamped with the second gear 24, and the bottom of the waist support 1 is fixed to the connecting block 26. During concrete realization, drive the worm by thigh transmission steering wheel and rotate, the worm drives first gear and second gear rotation, and the second gear passes through the connecting block and drives waist support rotation, because the waist support is fixed in the waist, can not take place to rotate, so can form a reaction force at thigh portion, form and lift the leg action.

As shown in fig. 8-10, the length adjustment mechanism 5 includes a fixed plate 51 fixed on both sides of the thigh support 4, wherein the fixed plate 51 on one side passes through the wearing ring 3 and is fixed to the bottom of the shell 21 of the thigh transmission mechanism 2, a movable plate 52 is disposed on the surface of the fixed plate 51, guide grooves 53 are disposed on both the fixed plate 51 and the movable plate 52, a fixed column 54 is inserted into the guide groove 53, an adjusting buckle 55 capable of sliding left and right is inserted into the bottom of the movable plate 52, a plurality of buckle interfaces 56 are formed on one side of the movable plate 52, a buckle block 57 corresponding to the buckle interface 56 is disposed in the adjusting buckle 55, a push-pull block 58 is disposed on one side of the adjusting buckle 55, the bottom of the movable plate 52 is fixed to an outer chuck 61 on the corresponding side, the length adjustment mechanism 5 further includes a side cover 59 for wrapping the whole of the fixed plate 51, the bottom corner of the side cover 59 is provided with a push-pull opening, and the push-pull block 58 is positioned at the push-pull opening. Because everybody's height is different, the length of leg also has the difference, so through length adjustment mechanism can adjusting device's length to the user of different heights dresses. When the length adjusting device is concretely implemented, the adjusting buckle is pushed inwards, and the movable plate can move up and down around the fixed column to realize the length adjustment; after the adjustment is finished, the adjusting buckle is pulled outwards, and then the clamping block in the adjusting buckle can be clamped into the corresponding clamping port, so that the movable plate is locked and fixed.

Preferably, the movable plate is close to the top to form a limiting notch, a limiting column is arranged at the limiting notch, and the limiting column can limit the moving range of the movable plate.

As a specific structure, a connecting rod 9 is fixed at the bottom of the inner chuck 62, a shank transmission steering engine 71 is fixed at the back of the shank bracket 7, and the bottom of the connecting rod 9 is in transmission connection with the output end of the shank transmission steering engine 71. When shank transmission steering wheel transmission, whole shank part can rotate around steering wheel transmission position, and when dressing when the human body, human knee joint department has a power that blocks shank part motion, because the connecting rod of thigh both sides is the pin junction with the thigh, so the resistance can make connecting rod and shank part whole around the motion of thigh pin junction again, forms the bending movement of knee.

The device has two use modes of full-automatic and semi-automatic, the full-automatic mode mainly aims at users who can not automatically walk normally due to muscle shrinkage caused by long-term bed rest, and the device provides power by a light motor, replaces skeletal muscles to transmit the power to femur and tibia parts, and carries out some simple rehabilitation training on legs while driving the users to walk in small amplitude; the semi-automatic mode mainly plays a role in walking assistance, when the motor stops rotating, locking on the gear set is removed, assistance is carried out on walking through the internal spring, the strength of the knee joint when a thigh is lifted and a user squats (sits) is increased, pressure brought on the knee is relieved, and fatigue damage to the knee is relieved.

In addition, the device adopts an aluminum alloy framework to ensure the bearing capacity, and partial transmission parts adopt ABS engineering plastics; the fixing belt and the shell of the waist are made of nylon 3D printing materials, so that the waist fixing belt and the shell have better toughness and human body fitting degree; the inner layer is made of OK cloth flexible materials, so that the clothes are more comfortable to wear. The transmission mechanism adopts a pu carbon steel spring which has high elasticity and stress resistance, is not easy to rust and is easy to clean.

In conclusion, the invention provides a knee joint power-assisted rehabilitation device which adopts a wearable design, is more convenient to use, is not restricted by places, provides power by a light motor, replaces skeletal muscles to transmit the power to femur and tibia parts, and drives a human body to walk more gently; the equipment is internally integrated, and can be easily worn by a single person without other accessories; the size is small and exquisite relatively, the wearing is simple, and the application occasions are wider; the device has two use modes of full automation and semi-automation, and can simultaneously realize the assistance help in rehabilitation exercise and daily life.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A knee joint rehabilitation device is characterized in that, comprising a waist support, the bottom of the waist support is connected with a thigh transmission mechanism, and the bottom of the thigh transmission mechanism is connected with a wearing ring, and the lower part of the wearing ring is provided with a thigh support, Both sides of the thigh support are provided with a length adjustment mechanism, the wearing ring is installed to the length adjustment mechanism on one side, an angle adjustment mechanism is connected at the bottom of the length adjustment mechanism, and the angle adjustment mechanism is connected with a calf support and a calf support. The pivot shaft at the bottom of the bracket is connected with a foot bracket.

2 . The knee joint rehabilitation device according to claim 1 , wherein the angle adjustment mechanism comprises an inner chuck and an outer chuck, the inner chuck is provided with a central column outward, and the outer chuck is 2 . The annular structure is installed on the central column, the outer side of the outer chuck is recessed inwardly to form a mounting groove, the mounting groove is provided with a baffle plate, the baffle plate is fixed to the central column by screws, and the outer chuck is There is a circle of evenly distributed card grooves, a sliding groove is opened in the center of the central column, a sliding block matching the card groove is arranged in the sliding groove, and a guide port is opened on the baffle plate, so The guide opening is exposed on the outside of the sliding block.

3. The knee joint rehabilitation device according to claim 2, wherein the thigh transmission mechanism comprises a casing, and a thigh transmission steering gear, a first gear and a second gear are arranged in the casing, and the thigh transmission The output end of the steering gear is connected with a worm, the worm is meshed with the first gear, the first gear is meshed with the second gear, and the thigh transmission mechanism also includes a connection block, which passes through the housing and Correspondingly snapped with the second gear, the bottom of the waist support is fixed to the connecting block.

4 . The knee joint rehabilitation device according to claim 3 , wherein the length adjustment mechanism comprises fixing plates fixed on both sides of the thigh support, wherein the fixing plates on one side pass through the wearing ring and are fixed to the thigh transmission mechanism. 5 . The bottom of the casing, the surface of the fixed plate is provided with a movable plate, the fixed plate and the movable plate are both provided with guide grooves, the guide grooves are penetrated with a fixed column, and the bottom of the movable plate is penetrated with a left and right A sliding adjustment buckle, a plurality of card interfaces are formed on one side of the movable plate, a clamping block corresponding to the card interface is arranged in the adjustment buckle, a push-pull block is arranged on one side of the adjustment buckle, and the adjustment buckle is provided with a push-pull block. The bottom of the movable plate is fixed to the outer chuck of the corresponding side, the length adjustment mechanism further includes a side cover for wrapping the whole of the fixed plate, the movable plate and the adjustment buckle, the bottom corner of the side cover is provided with a push-pull opening, the The push-pull block is located at the position of the push-pull opening.

5 . The knee joint rehabilitation device according to claim 4 , wherein the movable plate forms a limiting notch near the top, and a limiting column is provided at the limiting notch. 6 .

6 . The knee joint rehabilitation device according to claim 5 , wherein a connecting rod is fixed on the bottom of the inner chuck, a calf transmission steering gear is fixed on the back of the calf bracket, and the bottom of the connecting rod is connected with the calf driving rudder. 7 . The output end of the machine is connected to the drive.