Lower limb riding rehabilitation training device

Abstract

The utility model discloses a lower limb riding rehabilitation training device which is characterized in that the power output end of a rotating arm driving device is fixedly connected with the middle of a rotating arm, one end of the rotating arm is connected with a pedal telescopic device, the other end of the rotating arm is rotatably connected with a telescopic driving device, and the telescopic driving device drives the pedal telescopic device to reciprocate. The problems that in the prior art, the lower limb rehabilitation training process is single, and multiple rehabilitation exercises cannot be combined are solved. Due to single circular driving at the pedal position of the patient, the rotation angle of the knee joint of the patient is small, muscle activation of the patient is not facilitated, and the rehabilitation effect is poor. According to the lower limb riding rehabilitation training device, rotating motion of the pedals is achieved through the rotating arms, passive telescopic motion of the pedals within a set range is achieved through the telescopic driving device, active telescopic motion within the set range is achieved through the pedal telescopic device, multiple motions of rehabilitation motion are combined, and the rehabilitation training effect is achieved. The motion range of the knee joint in the rehabilitation exercise process is enlarged to the maximum extent, and the rehabilitation effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of structural design of medical equipment for human lower limb rehabilitation training, in particular to a lower limb cycling rehabilitation training device. Background Art

[0002] Cycling training devices (such as stationary bicycles or exercise bikes) are widely used in rehabilitation training after total knee arthroplasty (TKA) and have been shown to have various positive effects.

[0003] In the early rehabilitation stage, light exercise can be performed on a low-resistance stationary bicycle to help patients gradually restore the range of motion of the knee joint and basic muscle strength; as rehabilitation progresses, the training time and intensity can be gradually increased in the mid-term rehabilitation stage, using a medium-resistance stationary bicycle to further enhance muscle strength and endurance. The goal of this stage is to restore normal daily activities; in the late rehabilitation stage, high-intensity cycling training can be performed to maximize the restoration of knee function and mobility and improve overall cardiopulmonary endurance. Training at this stage helps patients return to normal life and work.

[0004] Lower limb rehabilitation training refers to the functional loss of the patient's lower limbs caused by pathological or external injuries to the lower limbs, which is mainly manifested as: limited range of motion and loss of lower limb muscle strength. At this time, targeted movement training is needed to complete the recovery or improvement of body function. During the recovery process, appropriate lower limb rehabilitation training plays a positive role in the rapid healing of injuries and promoting functional recovery.

[0005] However, existing lower limb rehabilitation training devices often separate and group multiple rehabilitation movements. A single device is often unable to complete a whole set of training movements in a complete and coherent manner, which seriously affects the training and rehabilitation efficiency. In addition, some rehabilitation movements cannot be performed properly, which also affects the rehabilitation effect.

[0006] It can be seen that in the prior art, the lower limb rehabilitation training process is single and multiple rehabilitation exercises cannot be combined. In addition, the single circular drive at the patient's footrest makes the patient's knee joint rotate at a small angle, which is not conducive to activating the patient's muscles and has a poor rehabilitation effect. Utility Model Content

[0007] In view of this, the main purpose of the utility model is to provide a lower limb cycling rehabilitation training device which combines multiple rehabilitation exercises, maximizes the range of motion of the knee joint during the rehabilitation exercise, and improves the rehabilitation effect.

[0008] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0009] The lower limb cycling rehabilitation training device comprises: a swing arm, a swing arm driving device, a pedal telescopic device and a telescopic driving device, wherein the power output end of the swing arm driving device is fixedly connected to the middle part of the swing arm, one end of the swing arm is connected to the pedal telescopic device, and the other end of the swing arm is rotatably connected to the telescopic driving device, and the telescopic driving device reciprocates to drive the pedal telescopic device to reciprocate.

[0010] In a preferred embodiment, the telescopic drive device comprises: a rotating tooth, a fixed tooth, a connecting rod and a crank, the two ends of the connecting rod are respectively integrally formed with a first rotating shaft and a second rotating shaft, the first rotating shaft is rotatably connected to one end of the swing arm, and the first rotating shaft passes through the swing arm and is fixedly connected to the rotating tooth;

[0011] In a preferred embodiment, the rotating shaft of the rotary arm is fixedly connected to the fixed tooth at a coaxial position, and the rotating tooth meshes and rotates on the outer wall of the fixed tooth;

[0012] In a preferred embodiment, the second rotating shaft is rotatably connected to one end of the crank, and the other end of the crank is rotatably connected to the pedal telescopic device.

[0013] In a preferred embodiment, the gear ratio of the rotating teeth to the fixed teeth is 1:3.

[0014] In a preferred embodiment, it further comprises: a transition tooth, through which the rotating tooth and the fixed tooth are meshed, and the transition tooth is rotatably connected to the swing arm.

[0015] In a preferred embodiment, the pedal retractable device comprises: a pedal and a slider, wherein the slider is slidably connected to one side of the swing arm, and the slider is rotationally connected to the pedal at a side away from the swing arm.

[0016] In a preferred embodiment, the slider comprises: an elastic member, a first slider and a second slider, a slide groove is provided on one side of the swing arm, the first slider and the second slider are slidably connected inside the slide groove, and the first slider and the second slider are abutted against each other, and both ends of the elastic member are fixedly connected to the first slider and the second slider respectively;

[0017] In a preferred embodiment, one end of the first slider away from the second slider is hinged to the pedal, and the second slider is rotationally connected to the end of the crank.

[0018] In a preferred embodiment, the first sliding block and the pedal are connected via a mounting seat.

[0019] In a preferred embodiment, it further comprises: a frame, the swing arms are symmetrically arranged on both sides of the frame, and the frame is fixedly connected to the fixed teeth.

[0020] In a preferred embodiment, the frame comprises: a base, a first support member and a second support member, the upper side of the base is symmetrically fixedly connected to the first support member and the second support member, the first support member and the second support member are fixedly connected to the fixed teeth through a fixed cylinder, the output shaft of the swing arm driving device passes through the fixed cylinder, and the other end of the output shaft is fixedly connected to the rotating shaft of the swing arm;

[0021] In a preferred embodiment, the swing arm driving device is fixedly connected between the first support member and the second support member.

[0022] In a preferred embodiment, the swing arm driving device horizontally extends two output shafts, and the two output shafts are respectively connected to a swing arm.

[0023] The lower limb cycling rehabilitation training device of the utility model has the following beneficial effects:

[0024] The lower limb cycling rehabilitation training device comprises: a swing arm, a swing arm driving device, a pedal telescopic device and a telescopic driving device, wherein the power output end of the swing arm driving device is fixedly connected to the middle part of the swing arm, one end of the swing arm is connected to the pedal telescopic device, and the other end of the swing arm is rotatably connected to the telescopic driving device, and the telescopic driving device reciprocates to drive the pedal telescopic device to reciprocate.

[0025] The present invention solves the problem that the lower limb rehabilitation training process is single and multiple rehabilitation exercises cannot be combined. In addition, the single circular drive at the patient's footrest makes the patient's knee joint rotate at a small angle, which is not conducive to activating the patient's muscles and has a poor rehabilitation effect.

[0026] The lower limb cycling rehabilitation training device realizes the rotational movement of the pedals through the rotating arm, realizes the passive telescopic movement of the pedals within a set range through the telescopic drive device, and realizes the active telescopic movement within the set range through the pedal telescopic device. It combines multiple rehabilitation exercises, maximizes the range of motion of the knee joint during the rehabilitation exercise, and improves the rehabilitation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 is a stereoscopic diagram of a lower limb cycling rehabilitation training device according to an embodiment of the present disclosure;

[0029] Figure 2 It is a front view of a lower limb cycling rehabilitation training device according to an embodiment of the present disclosure;

[0030] Figure 3 is a side view of a lower limb cycling rehabilitation training device according to an embodiment of the present disclosure;

[0031] Figure 4 This is a schematic diagram of the relative position structure of the swing arm and crank of a lower limb cycling rehabilitation training device according to an embodiment of the present disclosure;

[0032] Figure 5 This is a schematic diagram of the relative positions of a first slider, a second slider and an elastic member of a lower limb cycling rehabilitation training device according to an embodiment of the present disclosure;

[0033] Figure 6 The figure is a schematic structural diagram of a connecting rod of a lower limb cycling rehabilitation training device according to an embodiment of the present disclosure.

[0034]

Main component symbol description

[0035] 1. Swing arm;

[0036] 2. Swing arm drive device;

[0037] 3. Foot pedal retractable device;

[0038] 31. elastic member; 32. foot pedal; 33. slider; 34. mounting seat;

[0039] 331, first slider; 332, second slider;

[0040] 4. Telescopic drive device;

[0041] 41. Rotating teeth; 42. Fixed teeth; 43. Connecting rod; 44. Crank;

[0042] 45. first rotating shaft; 46. second rotating shaft;

[0043] 47. Transition teeth;

[0044] 5. Rack;

[0045] 51. base; 52. first support member; 53. second support member;

[0046] 6. Fixed cylinder. DETAILED DESCRIPTION

[0047] The following is a further detailed description of a lower limb cycling rehabilitation training device of the present invention in conjunction with the accompanying drawings and embodiments of the present invention.

[0048] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0049] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0050] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0051] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0052] like Figure 1-Figure 6As shown, the lower limb cycling rehabilitation training device comprises: a swing arm 1 for providing a swing arm for cycling action, a swing arm driving device 2 for providing a power source for the rotation of the swing arm, a pedal telescopic device 3 for satisfying the pedaling of the user, and a telescopic driving device 4 for telescopically driving the pedal telescopic device 3. The power output end of the swing arm driving device 2 is fixedly connected to the middle of the swing arm 1, one end of the swing arm 1 is connected to the pedal telescopic device 3, and the other end of the swing arm 1 is rotatably connected to the telescopic driving device 4, and the telescopic driving device 4 reciprocates to drive the pedal telescopic device 3 to reciprocate.

[0053] When the swing arm driving device 2 drives the swing arm 1 to rotate, the telescopic driving device 4 drives the pedal telescopic device 3 to perform telescopic movement, ensuring that the pedal rotation process is more consistent with the movement of the knee joint, thereby improving the rehabilitation effect of the knee joint.

[0054] In order to adapt to the rotation of the swing arm 1, during the rotation of the swing arm 1, the telescopic drive device 4 follows the movement of the swing arm 1, thereby ensuring that the driving effect of the telescopic drive device 4 matches the rotational movement of the pedal. The telescopic drive device 4 includes: a rotating tooth 41 that rotates with the swing arm 1, a fixed tooth 42 that does not rotate, a connecting rod 43 that drives the crank 44, and a crank 44 that drives the slider 33. In order to facilitate the connection of the connecting rod 43, the two sides of the two ends of the connecting rod 43 are respectively integrally formed with a first rotating shaft 45 and a second rotating shaft 46. The first rotating shaft 45 is rotatably connected to one end of the swing arm 1, and the first rotating shaft 45 passes through the swing arm 1 and is fixedly connected to the rotating tooth 41; the rotating tooth rotates relative to the swing arm 1, driving the connecting rod 43 to rotate around the first rotating shaft 45, so that the telescopic action of the connecting rod 43 driving the crank 44 can be realized.

[0055] During the rotation of the swing arm 1, the crank 44 is set to make the rehabilitation training of the pedal 32 more closely aligned with the three rehabilitation movements, and the running trajectory is close to the range of motion of the lower limbs of the human body, thereby obtaining a greater degree of muscle activation and joint angle activity.

[0056] Preferably, the crank 44 is a two-end structure, and the length of the two end structures is adjustable and fixedly connected.

[0057] In order to ensure that the rotating tooth 41 can be driven to rotate around the fixed tooth 42 during the rotation of the swing arm 1, the fixed tooth 42 is fixedly connected to the coaxial part of the rotating shaft of the swing arm 1, and the rotating tooth 41 meshes and rotates on the outer wall of the fixed tooth 42; therefore, during the process of the swing arm 1 driving the rotating tooth 41 to rotate, the meshing action of the fixed tooth 42 satisfies the self-rotation of the rotating tooth 41, thereby realizing the rotation action of driving the connecting rod 43.

[0058] The second rotating shaft 46 is rotatably connected to one end of the crank 44, and the other end of the crank 44 is rotatably connected to the pedal telescopic device 3. The connecting rod 43 drives the crank to reciprocate, driving the pedal telescopic device 3 to telescope.

[0059] Preferably, the gear ratio of the rotating teeth 41 to the fixed teeth 42 is 1:3.

[0060] The rotating swing arm 1 drives the connecting rod 43 to rotate in the opposite direction, and drives the slider 33 and the footrest 32 installed on the mounting seat 10 to extend and retract through the crank 44. By setting a transmission ratio of 3:1, the crank 44 retracts and retracts three times when the swing arm 1 rotates one circle, which corresponds to the three training movements of knee extension, knee flexion and lower limb lifting in lower limb rehabilitation training. The running trajectory is close to the range of motion of the human lower limbs, thereby obtaining a greater degree of muscle activation and joint angle activity. The three training movements can be completed in a relatively standardized manner in one rotation, and the rehabilitation training effect is better.

[0061] In order to extend the telescopic length of the crank 44 and satisfy the telescopic movement of the slider 33 driven by the crank 44 to better meet the range of human lower limb activities, the training device also includes a transition tooth 47, the rotating tooth 41 and the fixed tooth 42 are meshed through the transition tooth 47, and the transition tooth 47 is rotatably connected to the swing arm 1.

[0062] In order to meet the requirements of the coordination and connection with the telescopic driving device 4, the patient can have sufficient buffering during the pedaling process, and the telescopic movement can be driven by the telescopic device 4. The pedal telescopic device 3 includes: a pedal 32 and a slider 33, the slider 33 is slidably connected to one side of the swing arm 1, and the slider 33 is rotatably connected to the pedal 32 at the side away from the swing arm 1. The slider 33 can be extended along the length direction of the swing arm 1, so that the pedal 32 can be extended and retracted by a certain set amount.

[0063] In order to satisfy the connection function with the crank 44, not only can the crank 44 be driven to slide, but also the pedal telescopic device 3 can be telescoped to a certain extent during the pedaling process. The slider 33 includes: an elastic member 31, a first slider 331 and a second slider 332. A slide groove is provided on one side of the swing arm 1. The first slider 331 and the second slider 332 are slidably connected inside the slide groove, and the first slider 331 and the second slider 332 are abutted against each other. The two ends of the elastic member 31 are fixedly connected to the first slider 331 and the second slider 332 respectively;

[0064] One end of the first slider 331 away from the second slider 332 is hinged to the pedal 32 , and the second slider 332 is rotatably connected to the end of the crank 44 .

[0065] The crank 44 drives the second slider 332, and the second slider 332 pushes the first slider 331 to slide, thereby realizing the extension and retraction of the footrest 32. Furthermore, when the patient steps on the footrest 32, the footrest 32 drives the first slider 331 to extend, but the first slider 331 can only slide within a set distance range under the pull of the elastic member 31, thereby ensuring the safety of use and ensuring the flexible force of the footrest 32 on the patient's foot, thereby improving the protection of the patient's knee.

[0066] In order to improve the connection strength between the pedal 32 and the first slider 331, especially to facilitate the pedal 32 to smoothly rotate while ensuring the connection strength, the first slider 331 and the pedal 32 are connected via a mounting seat 34.

[0067] In order to support the whole device and fix the swing arm driving device 2 and the fixed teeth 42. The training device also includes: a frame 5, the swing arms 1 are symmetrically arranged on both sides of the frame 5, and the frame 5 is fixedly connected to the fixed teeth 42.

[0068] In order to ensure that the structural design of the frame 5 is reasonable and can meet the needs of the double-legged riding movement during riding, the frame 5 includes: a base 51 for supporting and fixing, a first support member 52 and a second support member 53 for supporting. The upper side of the base 51 is symmetrically fixedly connected to the first support member 52 and the second support member 53, the first support member 52 and the second support member 53 are fixedly connected to the fixing teeth 42 through a fixing tube 6, the output shaft of the swing arm driving device 2 passes through the fixing tube 6, and the other end of the output shaft is fixedly connected to the rotating shaft of the swing arm 1;

[0069] The first support member 52 and the second support member 53 are fixedly connected to the swing arm driving device 2 .

[0070] The swing arm driving device 2 horizontally extends two output shafts, and the two output shafts are respectively connected to a swing arm 1.

[0071] Preferably, the swing arm driving device 2 is a motor, which drives a reducer, and the output shafts extend from the left and right sides of the reducer respectively, to ensure the synchronous movement of the swing arms 1 on both sides. Both legs can move simultaneously and alternately to form a rehabilitation exercise similar to riding, thereby ensuring the comfort of the patient during training.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A lower limb cycling rehabilitation training device, characterized in that: include: A swing arm (1), a swing arm driving device (2), a pedal telescopic device (3) and a telescopic driving device (4), wherein a power output end of the swing arm driving device (2) is fixedly connected to the middle part of the swing arm (1), one end of the swing arm (1) is connected to the pedal telescopic device (3), and the other end of the swing arm (1) is rotatably connected to the telescopic driving device (4), and the telescopic driving device (4) reciprocates to drive the pedal telescopic device (3) to reciprocate; The telescopic driving device (4) comprises: a rotating tooth (41), a fixed tooth (42), a connecting rod (43) and a crank (44); a first rotating shaft (45) and a second rotating shaft (46) are respectively integrally formed on both sides of both ends of the connecting rod (43); the first rotating shaft (45) is rotatably connected to one end of the swing arm (1); the first rotating shaft (45) passes through the swing arm (1) and is fixedly connected to the rotating tooth (41); The rotating shaft of the rotary arm (1) is fixedly connected to the fixed tooth (42) at a coaxial position, and the rotating tooth (41) meshes and rotates on the outer wall of the fixed tooth (42); The second rotating shaft (46) is rotatably connected to one end of the crank (44), and the other end of the crank (44) is rotatably connected to the pedal telescopic device (3).

2. The lower limb cycling rehabilitation training device according to claim 1, characterized in that: The gear ratio between the rotating teeth (41) and the fixed teeth (42) is 1:

3.

3. The lower limb cycling rehabilitation training device according to claim 1, characterized in that: Also includes: A transition tooth (47), wherein the rotating tooth (41) and the fixed tooth (42) are meshed with each other through the transition tooth (47), and the transition tooth (47) is rotatably connected to the swing arm (1).

4. The lower limb cycling rehabilitation training device according to any one of claims 2-3, characterized in that: The pedal telescopic device (3) comprises a pedal (32) and a slider (33), wherein the slider (33) is slidably connected to one side of the swing arm (1), and the slider (33) is rotationally connected to the pedal (32) at a side away from the swing arm (1).

5. The lower limb cycling rehabilitation training device according to claim 4, characterized in that: The slider (33) comprises: an elastic member (31), a first slider (331) and a second slider (332); a slide groove is provided on one side of the swing arm (1); the first slider (331) and the second slider (332) are slidably connected inside the slide groove, and the first slider (331) and the second slider (332) are abutted against each other; and two ends of the elastic member (31) are fixedly connected to the first slider (331) and the second slider (332) respectively; One end of the first slider (331) away from the second slider (332) is hinged to the pedal (32), and the second slider (332) is rotatably connected to the end of the crank (44).

6. The lower limb cycling rehabilitation training device according to claim 5, characterized in that: The first sliding block (331) and the footrest (32) are connected via a mounting seat (34).

7. The lower limb cycling rehabilitation training device according to any one of claims 2-3, characterized in that: Also includes: A frame (5), the swing arms (1) being symmetrically arranged on both sides of the frame (5), and the frame (5) being fixedly connected to the fixed teeth (42).

8. The lower limb cycling rehabilitation training device according to claim 7, characterized in that: The frame (5) comprises: a base (51), a first support member (52) and a second support member (53); the upper side of the base (51) is symmetrically fixedly connected to the first support member (52) and the second support member (53); the first support member (52) and the second support member (53) are fixedly connected to the fixed teeth (42) via a fixed cylinder (6); an output shaft of the swing arm driving device (2) passes through the fixed cylinder (6); and the other end of the output shaft is fixedly connected to the rotating shaft of the swing arm (1); The swing arm driving device (2) is fixedly connected between the first supporting member (52) and the second supporting member (53).

9. The lower limb cycling rehabilitation training device according to claim 8, characterized in that: The swing arm driving device (2) extends two output shafts horizontally, and the two output shafts are respectively connected to a swing arm (1).

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