CN217366453U - Lower limb auxiliary exercise device - Google Patents

Abstract

The utility model relates to a low limbs auxiliary movement device includes the trunk support at least and locates the foot supporting component of the vertical bottom of trunk support, including foot link and two multilayer wave spring that the length direction of foot set up side by side when the device was dressed to the user in the foot supporting component. The foot connecting frame is provided with two end parts respectively positioned above the two multi-layer wave springs, and a first width between the two end parts is smaller than a second width formed by the two multi-layer wave springs. Each multi-layer wave spring corresponds to a U-shaped plate respectively, the U-shaped plate is provided with a cavity for assembling the multi-layer wave springs, and the two U-shaped plates corresponding to the two multi-layer wave springs are fixedly connected with each other.

Description

Lower limb auxiliary exercise device

Technical Field

The utility model relates to a medical treatment rehabilitation apparatus technical field especially relates to a low limbs auxiliary movement device.

Background

According to the relevant survey data, the lower limb injuries are the injuries which are common in sports and life, and the mild injuries are the main injuries. The recovery after injury generally lasts for 1-6 months, during which, if the patient needs to move, the patient needs to use a crutch or a wheelchair, however, the long-term use of the armpit crutch can cause the diseases such as shoulder moving upwards and axillary lymphadenitis, and meanwhile, the use of the wheelchair has many inconveniences, such as the need of others for assisting when going up and down stairs. For injured students, it is very troublesome to go in and out of dormitories, go upstairs and downstairs or roll between dormitories and teaching buildings; this inconvenience is even more troublesome to the life of the injured person who is already engaged in the work. If the people are kept still for a long time, the immunity is reduced.

The healing of the orthopedic wound is a relatively long process, and with the pursuit of the public for good life, the trip nursing of the orthopedic wound becomes an important public health problem of concern. A good lower limb auxiliary movement device not only can make a patient move conveniently, but also can reduce the burden of the patient during working as much as possible, so that the lower limb auxiliary movement device which is convenient to go out and operate and cannot cause secondary injury is particularly necessary.

In the prior art, for example, patent document CN207221003U discloses a walking aid device, which mainly comprises a velcro strap, a support rod and a base, wherein the velcro strap is used for fixing the affected side of the thigh and the walking aid device, the upper part of the support rod is a support seat, the support seat is in contact with the back of the thigh, the lower part of the support rod is inserted into a barrel-shaped groove of the base, the lower part of the support rod and the barrel-shaped groove of the base are provided with a plurality of corresponding screw holes, adjusting screws are screwed into the screw holes with different heights, and the depth of the support rod inserted into the base is adjusted to adapt to different heights of human bodies. The base is composed of a barrel-shaped groove and a simulation foot, the barrel-shaped groove is connected with the simulation foot through a shaft, the simulation foot can move through the shaft, and springs are arranged in front of and behind the simulation foot and connected with the barreled groove respectively to limit the moving range of the simulation foot. The bottom of the simulated foot is arched and is similar to the arch of foot, and the bottom is made of elastic material to buffer the impact force between the simulated foot and the ground. The foot of the patient does not touch the ground and does not receive force directly.

When the walking assisting device is used for walking, simple training is firstly carried out, the healthy side legs are pedaled backwards with force, so that the human body obtains forward speed, when the walking assisting device supports the ground, the height of the gravity center of the human body is higher than that when the walking assisting device is not used due to the fact that feet are suspended, namely the height of the gravity center of the human body is higher than that when the healthy side legs support the ground, the gravity center of the human body rotates around a shaft when the assisting device supports the ground, the gravity center of the human body is raised, power for raising the gravity center of the human body comes from the forward speed obtained by pedalling the healthy side legs with force, and part of kinetic energy of the speed is converted into potential energy for raising the gravity center.

However, the above technical solution adopts the foot simulating structure, and the foot simulating structure is provided with the front and rear palm parts similar to the human foot, however, in practical use, the front and rear palm parts must slide relative to the ground to provide walking assistance, and the walking assisting structure is easy to slip, and cannot give consideration to both walking safety and effective walking assistance.

Furthermore, on the one hand, due to the differences in understanding to those skilled in the art; on the other hand, since the inventor has studied a lot of documents and patents while making the present invention, but the space is not limited to the details and contents listed, however, this is by no means the present invention does not have the features of these prior arts, but the present invention has all the features of the prior arts, and the applicant reserves the right to increase the related prior arts in the background art.

SUMMERY OF THE UTILITY MODEL

To prior art not enough, this application has provided a low limbs auxiliary movement device, includes the trunk support at least and locates the foot supporting component of the vertical bottom of trunk support, including two multilayer wave spring that the length direction of foot set up side by side when wearing the device along the user in the foot supporting component. In the device, traditional foot-simulating structure that simply simulates human foot and is equipped with front and back palm portion has been abandoned to this application, and the foot supporting component that novel structure made simply has been proposed, utilizes the wave spring that the performance is more excellent than conventional coil spring to provide effectual walking helping hand for user's walking. In addition, when the walking assisting device is actually used, the foot supporting component does not need to rely on the sliding relative to the ground to provide walking assisting force, so that the sliding situation is avoided to the maximum extent, and walking safety and effective walking assisting force can be considered at the same time. Preferably, a foot link is also included in the foot support assembly. The foot link has two ends respectively located above the two multi-layer wave springs. A first width between the two end portions is smaller than a second width formed by the two multi-layered wave springs.

According to a preferred embodiment, each of the multi-layer wave springs corresponds to a U-shaped plate, which has a cavity for mounting the multi-layer wave spring, and the two U-shaped plates corresponding to the two multi-layer wave springs are fixedly connected to each other.

According to a preferred embodiment, the U-shaped plate has a neck portion and a pair of legs extending from the neck portion and spaced apart from each other, and the neck portions corresponding to the two U-shaped plates are abutted against and fixedly connected to each other.

According to a preferred embodiment, the juxtaposition of the two legs of the U-shaped plate coincides with the compression direction of the multi-layer wave spring.

According to a preferred embodiment, two ends of the foot connecting frame are respectively fixedly connected to the supporting legs of different U-shaped plates.

According to a preferred embodiment, the legs of the U-shaped plate facing away from the foot connecting frame have bottom end faces for contacting the ground, which are provided with an anti-slip layer.

According to a preferred embodiment, the frame body between the two ends of the foot connecting frame is in an arch structure.

According to a preferred embodiment, in the juxtaposition direction of the two U-shaped brackets, the length of the leg of the U-shaped plate relatively close to the foot attachment frame is smaller than the length of the other leg of the U-shaped plate.

According to a preferred embodiment, the multi-layer wave spring can be formed by stacking a plurality of spring strips wound in a circular ring shape, the spring strips forming a wave line oscillating in a radial reference plane in the circumferential direction and having peaks and valleys.

According to a preferred embodiment, the two ends of the spring band are connected by a weld seam, which is arranged on the wavy line of the spring band in the region between a crest and a trough adjacent thereto. The zero crossings of the wavy lines of the low-stress regions on the wavy lines of the spring band between a peak and a trough adjacent to the peak in the radial reference plane area. On a wave spring, the regions of greatest stress are at the peaks and valleys of the wave spring, while the regions between a peak and an adjacent valley are subject to less stress than the peaks and valleys. When the wave spring is under pressure, axial forces are transferred to the wave spring through the upper and lower support surfaces of the wave spring. The axial force acting on the valleys is opposed to the force acting on the peaks of the spring band. At a point between a peak and an adjacent valley, the opposing forces in the axial direction cancel each other, thereby creating a low stress region in the spring band. The wound wave spring, the ends of which are located in the low stress region of the wavy line of the spring band between the crest and the adjacent trough and which are connected to each other by a weld at this location, has a considerably long fatigue life and reliability.

Drawings

Fig. 1 is a schematic view of a simplified connection structure of a lower limb exercise assisting apparatus according to the present invention;

fig. 2 is a simplified exploded view of the junction between the thigh support assembly and the trunk support as proposed by the present invention;

fig. 3 is a simplified schematic diagram of the connection relationship between the second support plate and the first support plate according to the present invention;

fig. 4 is a simplified cross-sectional structural schematic diagram of an adjustment mechanism proposed by the present invention;

fig. 5 is a simplified overall structure diagram of the lower limb exercise assisting device of the present invention;

FIG. 6 is a simplified schematic view of the bottom of the foot support assembly of the present invention;

fig. 7 is a simplified overall structure diagram of the wave spring of the present invention;

fig. 8 is a simplified partial schematic view of a thigh support assembly according to the present invention;

fig. 9 is a simplified schematic view of the lower limb exercise assisting apparatus according to the present invention in use.

List of reference numerals

1: a trunk support; 2: a thigh support assembly; 3: a lower leg support assembly; 4: a thigh support; 5: a thigh mount; 6: a thigh link; 7: adjusting the fastening structure; 8: operating the screw; 9: a pinned screw; 10: a convex table; 11: a pin slot; 12: a through hole; 13: a flexible layer; 14: a zipper structure; 15: a foot support assembly; 16: a foot connecting frame; 17: a rebound mechanism; 18: an elastic member; 19: a wave spring; 20: a first U-shaped plate; 21: a second U-shaped plate; 22: an intervening space; 23: an anti-slip layer; 24: a first support plate; 25: a second support plate; 26: a third support plate; 27: a first bend; 28: a second bend; 29: a button; 30: a central shaft; 31: a thigh link; 32: a first fulcrum; 33: a second fulcrum; 34: a multi-layer wave spring.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, the present application provides a lower limb exercise assisting apparatus, which at least comprises a main frame 1 and a foot supporting assembly 15 disposed at the vertical bottom end of the main frame 1.

The foot support assembly 15 includes a foot link 16 and a resilient mechanism 17. Foot link 16 is fixedly attached to resilient mechanism 17 to transmit the force applied thereto in an upward or downward direction.

The resilient member 17 is provided with an elastic member 18 which is deformable and restorable. The elastic member 18 is in particular a wave spring 19. With the same amount of deformation, the volume of the wave spring 19 is much smaller than that of a conventional coil spring, thereby greatly saving the space occupied by the foot support assembly 15.

The elastic member 18 is a multi-layer wave spring. The resilient mechanism 17 comprises two multi-layer wave springs arranged side by side along the length of the foot when the user is wearing the device. The single-layer wave spring 19 is an elastic element with a plurality of wave crests and wave troughs on a metal ring, and the multi-layer wave spring 19 is composed of a plurality of single-layer wave springs 19.

The foot link 16 has two ends respectively located above the two multi-layer wave springs, and a first width between the two ends is smaller than a second width formed by the two multi-layer wave springs.

The first width may refer to a connection distance between both end portions of the foot link in a length direction of the foot when the user wears the device. It is understood that the end face of the end of the foot link may be a flat surface, an arc surface, or an irregular surface formed by the combination of a flat surface and an arc surface. In the case where the end surfaces of the ends of the foot link are non-planar or the end surfaces of the ends of the foot link are non-parallel to each other, the link distance between the two ends of the foot link is not unique, and the first width should be referred to as the longest link distance among them.

The second width may refer to a line distance between ends of the two multi-layered wave springs, which are respectively relatively far away from each other, in a length direction of the foot when the user wears the device. The end faces of the end parts of the two multi-layer wave springs can be planes or arc faces, or can also be unconventional faces formed by combining the planes and the arc faces. In the case that the end surfaces of the ends of the multi-layer wave spring are non-planar, or the end surfaces of the two ends corresponding to the two multi-layer wave springs are non-parallel to each other, the connection distance between the two ends is not unique, and the second width refers to the longest connection distance.

Compared with the prior art that the force application points of the foot connecting frame are concentrated at the middle parts of the wave springs, the wave springs can provide larger walking assistance force and avoid the situation of possible skidding.

The resilient mechanism 17 includes a first U-shaped plate 20 and a second U-shaped plate 21. The U-shaped plate can be regarded as a structure which is formed by pre-bending a long strip plate to form a U-shaped cross section and provided with a neck part and a pair of legs which extend along the neck part and are opposite to each other and spaced apart from each other. The two U-shaped plates are fixedly connected with each other in a way that the U-shaped openings face away from each other. The elastic member 18 is installed inside the U-shaped plate. The stress law of the front sole and the rear sole of the human foot during walking is simulated to the maximum extent.

The two ends of the foot connecting frame 16 are respectively fixedly connected to the first and second U-shaped plates. The U-shaped plate may be a material having a certain hardness, such as an alloy or rubber, which can be elastically deformed.

The body of foot link 16 is recessed toward the side away from resilient mechanism 17 such that a spacing space 22 remains between the body of foot link 16 and resilient mechanism 17. The spacing space 22 allows the U-shaped plate to deform towards the inside of its cavity.

People have 3 ~ 5 cm's the vertical direction when walking fluctuation, and the foot supporting component 15 that this application provided can simulate people's gait law betterly.

And an anti-skid layer 23 is arranged on the end surface of the U-shaped plate, which is in contact with the ground. The anti-slip layer 23 mentioned in the present application may be made of an existing material for anti-slip, and is not particularly limited to a certain type of material. For example, the anti-slip layer 23 may preferably be an anti-slip fleece pad or a gecko webbed biomimetic design-related structure.

In the parallel direction of the two U-shaped frames, the length of the supporting leg on the U-shaped plate, which is relatively close to the foot connecting frame, is smaller than that of the other supporting leg on the U-shaped plate. The landing leg of upside receives the pressure effect that the people walked earlier and exert the pressure effect when the people walks and do all can, the landing leg of upside warp down towards walking direction and slant, if the length of the landing leg of upper and lower both sides is unanimous, then easily lead to the landing leg of downside to receive the thrust on the horizontal direction, the frictional action between downside landing leg and the ground strengthens, influence landing leg life, and the condition of skidding probably appears, therefore, in this application, the design of upside landing leg is for being lighter than the size of downside landing leg, so that the effort that the downside landing leg received roughly all is vertical downwards, frictional action between downside landing leg and ground reduces or takes place the long duration of relative friction and reduce, extension landing leg life, and the condition of skidding is avoidd to the at utmost simultaneously.

As shown in fig. 1, the lower limb exercise assisting device provided by the present application can assist the walking of a patient who needs a brace due to moderate injuries of ankles and knees, and is suitable for various environments, and can walk on the ground as well as go up and down stairs. The relative posture between the thigh and the shank can be adaptively adjusted according to the use feeling of the patient, and the chair is comfortable to use and is suitable for different rehabilitation postures. Meanwhile, the lower limb auxiliary exercise device can prevent the affected side leg from being stressed excessively, so that the affected side leg can be recovered. This low limbs auxiliary movement device with the effort dispersion of support piece etc. to the thigh and the shank of suffering from the side leg on, avoided local atress to provide great support area, further dispersed the effort that can receive when suffering from the side leg walking, promoted the comfort. The lower limb auxiliary exercise device can be suitable for patients with the left leg or the right leg as the affected side leg through conversion, the utilization rate is high, and the problem of medical resource waste caused by the fact that two types of lower limb auxiliary exercise devices suitable for the left leg and the right leg need to be designed respectively in the prior art is solved.

The lower limb auxiliary exercise device mainly comprises a main support 1, a thigh support assembly 2 and a shank support assembly 3. The thigh supporting component 2 and the shank supporting component 3 are respectively and movably connected on the main bracket 1.

The thigh support assembly 2 comprises a thigh rest 4 and a thigh mount 5. The thigh support 4 can provide a stable supporting function with a large supporting area for the thigh. The thigh mount 5 is detachably attached to the thigh rest 4. The thigh support 4 and the thigh fixing part 5 are fixed oppositely and surround to form a thigh placing space.

At the outer edge of the thigh mount 5 at least one thigh link 6 is arranged. The thigh link 6 is connected at both ends thereof to the thigh fixing part 5 and the thigh support 4, respectively, so as to be relatively fixed.

The thigh link 6 may be an existing buckle or a backpack strap with an adjusting buckle, and the application is not particularly limited. For example, the thigh links 6 may be resilient material with removable chuck hooks. For example, the thigh link 6 may be a user-owned fixing cord.

Preferably, at least one thigh link 6 is provided on both sides of the thigh mount 5. Preferably, only one side of the thigh fixing part 5 is provided with a thigh connecting part 6, and the other side is rotatably connected with the thigh support 4.

The thigh support assembly 2 further comprises a thigh link 31. One end of the thigh connecting frame 31 is fixedly connected with the lower end surface of the thigh support 4. The other end of the thigh connecting frame 31 is movably connected to the main frame 1. The thigh link 31 is rotatable relative to the trunk 1.

When the auxiliary device proposed by the prior art is used, the supporting rod only supports the rear side of the local thigh close to the knee, so that not only can the patient feel uncomfortable due to local stress, but also most of the body weight needs to be borne by the leg with the healthy side when the patient stands, the use feeling is poor, and the rehabilitation process causes excessive stress on the leg with the healthy side. In this respect, in the present application, the thigh link 31 has one first fulcrum 32 for connection with the trunk 1 and at least two second fulcrums 33 for connection with the thigh rests 4. Thigh link 31 is equivalent to the stable triangular structure that forms between thigh support 4 and trunk support 1, through the supporting role of a plurality of second fulcrums 33, can hold the thigh steadily, and bearing area is big not only is favorable to promoting to use the comfort to avoid the excessive atress of strong side leg, can make equipment realize more lightweight requirement simultaneously under this structure. Although the auxiliary device proposed in the prior art can also extend its thigh support platform upwards to satisfy a large support area, it increases the weight of the apparatus at the same time, and cannot achieve the lightweight of the auxiliary device of the present application.

The auxiliary device proposed in the above patent, in which the lower leg is naturally suspended along the support rod, the support rod can only restrain the lower leg to avoid the lower leg from shaking, and the weight of the lower leg is basically stressed by the knee and the thigh, and is especially not suitable for the patient who needs to reduce the stress of the knee as much as possible due to the moderate damage of the knee. In contrast, in the present application, the lower leg support assembly 3 is also indirectly fixed to the main support 1 by using a connecting frame, and the lower leg connecting frame is used in cooperation with the lower leg support, so that the weight of the lower leg can be unloaded onto the main support 1 through the lower leg connecting frame, and the stress on the upper leg and the knee can be reduced.

The joint between the thigh link 31 and the trunk support 1 is provided with an adjusting fastening structure 7. The adjustment fastening arrangement 7 comprises an operating screw 8 and a pinned screw 9 which are cooperatively connected to each other. The pinned screw 9 refers to a screw provided with a boss 10 on the shank structure for limiting. The operating screw 8 refers to a screw for manual operation by a person.

The main bracket 1 is provided with a pin slot 11. The pin grooves 11 are adapted to the cams 10 on the bolt 9. The pin slot 11 serves to prevent relative rotation between the pinned screw 9 and the backbone bracket 1.

The bolt 9 with the pin is provided with a threaded hole, the rod part structure of the operating bolt 8 is provided with threads, and the operating bolt 8 is matched with the threaded hole. The operator can turn the operating screw 8 to position the thigh link 31 on the trunk stand 1.

The pinned screw 9 may be fitted to the main frame 1 from the left or right side of the main frame 1, and the operation screw 8 may be oppositely disposed at the right or left side of the main frame 1. That is, the user can select to dispose the operating screw 8 on the right or left side of the trunk stand 1 so that the user who is accustomed to using the left or right hand can operate with the comfort side hand of the user.

The thigh connecting frame 31 is provided with a through hole 12 at the end part matched with the main bracket 1. The diameter of the through hole 12 is slightly larger than the diameter of the pinned screw 9. Thereby ensuring mobility of the thigh support assembly 2.

Preferably, there is a non-smooth contact between the thigh link 31 and the trunk support 1. That is, the end surfaces of the thigh link 31 and the trunk mount 1 that are in contact with each other are preferably rough surfaces or uneven surfaces. The relative rotation between the thigh connecting frame 31 and the main frame 1 can be realized by loosening the operating screw 8.

Preferably, the through hole 12 of the thigh link 31 may have the same diameter as the through hole of the main frame 1 with the pin groove 11, and the through hole 12 is opened along the inner edge thereof with a plurality of pin grooves 11 that are all matched with the convex table. Namely, the relative rotation between the thigh connecting frame 31 and the main frame 1 can be realized by taking out the bolt 9 with the pin.

The structure of the lower leg support assembly 3 is similar to that of the thigh support assembly 2, the connection structure between the lower leg support assembly 3 and the trunk support 1 is similar to that between the thigh support assembly 2 and the trunk support 1, and the detailed structure of the lower leg support assembly 3 is not repeated herein. The shank link and the thigh link 31 are connected to different positions on the vertical top end of the trunk stand 1, respectively. The thigh support assembly and the shank support assembly are respectively used for contacting with the affected side from the affected side thigh rear side and the affected side shank rear side when the auxiliary system is worn on the affected side. The lower leg supporting component is assembled on the main support, and the acting position of the lower leg on the affected side, which is borne by the main support after the lower leg supporting component is assembled on the lower leg on the affected side, under the action of the tensile force conducted by the lower leg supporting component and towards the side where the face of the user is located at the same end part of the main support as the assembling position of the upper leg supporting component on the main support. And the projection of the end of the trunk support on an imaginary horizontal plane perpendicular to the vertical is always located in the middle area of the projection of the thigh support assembly on the imaginary horizontal plane.

The calf support and calf fastener included in the calf support assembly 3, and the thigh support 4 and thigh fastener 5 can each be shaped like a parabolic cylinder. Thereby being better suitable for being worn by human body and improving the comfort.

The shank support, the shank fixing piece, the thigh support 4 and the thigh fixing piece 5 are all paved with flexible layers 13. The flexible layer 13 is preferably of soft leather. The flexible layer 13 is often in contact with a user and is easily contaminated with dirt, and the soft leather material can provide the characteristic of easy cleaning while keeping the comfort.

The flexible layer 13 is detachably fastened to the calf support, calf fastener, thigh support 4 and thigh fastener 5 by means of a zip-fastener arrangement 14. The zipper arrangement 14 is provided along the outer edges of the calf support, calf fastener, thigh support 4 and thigh fastener 5. The zip noise is little, compares in prior art and adopts the magic to detain as the brace of main fixed mode, and the operation is more random, wears to take off conveniently. The zipper can be used repeatedly, and has longer and more stable service life compared with a magic buckle. The magic is detained and is easily taken place the adhesion deviation, leads to the area of magic knot to collude other article adhesions such as face and clothes, and under the comparison, the zip that this application adopted uses the good reliability, and the convenience is high.

Preferably, the flexible layer can be formed by a contact layer, an interlayer and a bottom layer which are sequentially overlapped from top to bottom. The contact layer can be a laminated composite made of one or more than one of leather layer, top textile fabric layer, top weaving fabric layer, elastic laminated object made of silica gel foam or sponge or memory cotton or EVA or latex foam or rubber. The bottom layer can be a porous silica gel layer made of silica gel or a layered composite made of one or more of a porous silica gel net layer made of silica gel, a rubber layer, a bottom textile fabric layer and a bottom woven fabric layer. The bottom surface of the bottom layer can be provided with anti-skid projections or anti-skid holes or anti-skid convex edges. The interlayer can be a layer formed by extrusion molding or injection molding of mineral powder, plastics and other raw materials capable of releasing negative ions.

The lower limb exercise assisting apparatus further includes a foot supporting member 15. The foot supporting component 15 is arranged at the vertical bottom end of the main support 1 and is used for stably supporting the ground and providing a main assisting effect for the walking of the patient.

The backbone support 1 includes a first support plate 24, a second support plate 25, and a third support plate 26, which are connected in sequence. One end of the second support plate 25 is opened with an open hollow, one end of the third support plate 26 is slidably connected in the hollow of the second support plate 25, and the other end is connected to the foot connecting frame 16. The third support plate 26 and the second support plate 25 may be fixed relative to each other, and in the case where the fixed relationship is released, the third support plate 26 may move up and down relative to the second support plate 25 and may return to the fixed relationship therebetween at a desired position. Therefore, the overall height of the product can be flexibly adjusted, and the product is better suitable for different wearers.

The connection structure between the third support plate 26 and the second support plate 25 may employ the above-described manually adjustable adjustment fastening structure 7. Or the existing freely telescopic fixed structure can be adopted, and the structural design is not the improvement point of the application, so the application is not limited to the specific structure. For example, the second support plate 25 and the third support plate 26 are both provided with a long strip through hole, the long strip through hole extends vertically, and two inner wall surfaces of the long strip through hole extending vertically are respectively provided with a plurality of pin grooves corresponding to each other, and the adjusting and fastening structure 7 has two opposite convex platforms on the bolt with pin, which are used for matching the pin grooves on the inner wall surfaces of the long strip through hole to fix the relative positions of the third support plate and the second support plate.

The second support plate 25 has two bent portions, and the bent portions of the two bent portions are opposite to each other. The bending angles of the bent portions of the second support plate 25 are all obtuse angles. A first bend 27 of the second support plate 25, which is close to the first support plate 24, is bent away from the first support plate 24. The plane of the third support plate 26 is different from the plane of the first support plate 24.

The second support plate 25 and the first support plate 24 may be connected to each other by a central shaft 30. The second support plate 25 may be fixed relative to the first support plate 24 without affecting the walking assistance to the patient. With the fixed relationship released, the second support plate 25 can carry the third support plate 26 with the foot support assembly 15 for rotation relative to the first support plate 24.

Under the condition that the second supporting plate 25 is fixed relative to the first supporting plate 24, a first working included angle and a second working included angle are formed between the second supporting plate 25 and the first supporting plate 24. The two working included angles are respectively 180 degrees and 0 degree.

An adjusting mechanism or a top-bottom rotating shaft mechanism is arranged in one end part of the first supporting plate 24. One end of the top-bottom rotating shaft mechanism penetrates through the plate body of the first supporting plate 24, and a button 29 for operation of a user is arranged on the end. The top and bottom rotating shaft mechanism can be an existing top and bottom lock structure or an existing elastic pressing structure similar to a pressing pen. The present application does not suggest any improvement as long as the structure capable of being locked and unlocked by repeated pressing can be used as the top and bottom hinge mechanism, and therefore, the specific structure thereof is not limited.

The top-to-bottom hinge mechanism comprises a button 29 and at least one movable stud shaft in linkage connection therewith. The number of movable column shafts is preferably two. The shape of the movable post shaft is preferably cylindrical.

When the button 29 is pressed, at least one movable shaft is inserted into the second support plate 25, which can function as a fixed angle. When the button 29 is pressed again, all the movable axes are raised, and the user can rotate the second supporting plate 25 from the first working angle to the second working angle. The button 29 is pressed again and the movable post shaft is inserted into the second support plate 25, limiting the second support plate 25 to a designated working angle.

The main body frame of the lower limb auxiliary exercise device can be made of light high-strength materials such as aluminum alloy materials, and the strength is guaranteed while the weight of the product is reduced.

When in use, the lower limb auxiliary exercise device can be adjusted to be in a posture convenient for the patient to use the side legs by selectively adjusting the working included angle of the second supporting plate 25. The operator can select the mounting direction of the fastening structure to facilitate the assembly and adjustment operations. After the affected side leg is correspondingly placed on the thigh support 4 and the shank support, the shank support and the shank fixing piece, and the thigh support 4 and the thigh fixing piece 5 are respectively and correspondingly connected and fixed, so that the wearing is completed. The affected side leg can walk stably by means of the rebounding mechanism 17 at the bottom of the lower limb auxiliary exercise device, the foot of the affected side leg does not need to be in direct contact with the ground, further damage to the affected side leg is avoided, and recovery of the affected side leg is facilitated.

It should be noted that the above-mentioned embodiments are exemplary, and those skilled in the art can devise various solutions in light of the disclosure, which are all within the scope of the disclosure and fall into the scope of the invention. It should be understood by those skilled in the art that the present specification and drawings are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims (9)

1. A lower limb auxiliary exercise device at least comprises a main support (1) and a foot support component (15) arranged at the vertical bottom end of the main support (1),

it is characterized in that the preparation method is characterized in that,

the foot support assembly (15) includes two multi-layer wave springs (34) arranged side by side along the length of the foot when the device is worn by a user,

the foot connecting frame (16) is provided with two end parts respectively positioned above the two multi-layer wave springs (34), the first width between the two end parts is smaller than the second width formed by the two multi-layer wave springs (34),

each multi-layer wave spring (34) corresponds to a U-shaped plate respectively, and in the parallel direction of the two U-shaped frames, the length of a supporting leg on the U-shaped plate, which is relatively close to the foot connecting frame (16), is smaller than that of the other supporting leg on the U-shaped plate.

2. The lower extremity exercise assisting device according to claim 1, wherein the U-shaped plate has a cavity for fitting the multi-layered wave spring (34), and two U-shaped plates corresponding to the two multi-layered wave springs (34) are fixedly connected to each other.

3. The lower limb exercise assisting apparatus in accordance with claim 2, wherein the U-shaped plate has a neck portion and a pair of legs extending from the neck portion, the legs being spaced apart from each other, and the respective neck portions of the two U-shaped plates are abutted against each other and fixed to each other.

4. The lower extremity assist movement device according to claim 3, characterized in that the juxtaposition of the two legs of the U-shaped plate coincides with the compression direction of the multi-layer wave spring (34).

5. The lower limb exercise assisting apparatus according to claim 4, wherein both ends of the foot connecting frame (16) are respectively fixed to the legs of different U-shaped boards.

6. The lower limb exercise assisting apparatus according to claim 5, wherein the legs of the U-shaped board relatively distant from the foot link (16) have bottom end surfaces for contact with the ground, and the bottom end surfaces are provided with an anti-slip layer (23).

7. The lower extremity exercise assisting apparatus in accordance with claim 6, wherein the frame body between both ends of the foot link frame (16) has an arch structure.

8. The lower limb exercise assisting apparatus according to claim 1, wherein the multi-layered wave spring is formed by stacking a plurality of spring strips wound in a circular manner, the spring strips forming a wave line oscillating in a radial reference plane in a circumferential direction and having peaks and valleys.

9. The lower limb exercise assisting apparatus according to claim 8, wherein both ends of the spring band are connected by a weld line, and the weld line is disposed on a region between a peak and a valley adjacent to the peak on the wavy line of the spring band.

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