Lower limb movement assisting device

Abstract

The embodiment of the utility model provides a lower limb movement assisting device, and belongs to the technical field of medical rehabilitation. The lower limb movement assisting device comprises a base, a first moving mechanism, a second moving mechanism and a treading assembly, the second moving mechanism is arranged on the base, the first moving mechanism is arranged on the second moving mechanism, and the first moving mechanism is slidably connected with the second moving mechanism in the extending direction of the second moving mechanism; the treading assembly is arranged on the first movable mechanism, the treading assembly is rotationally connected with the first movable mechanism, and the treading assembly is used for being connected with the feet of a user; the second moving mechanism drives the first moving mechanism to slide, and / or the first moving mechanism drives the treading assembly to rotate so as to drive at least one of the knee joint and the ankle joint of the user to bend and stretch. The user does not need to actively exert power in the exercising process, the exercising process is convenient, fast and efficient, experience feeling is good, and exercising can be conducted smoothly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical rehabilitation, and in particular to a lower limb activity assisting device. BACKGROUND

[0002] For some patients who have undergone major surgery, suffered severe trauma or been in bed for a long time, the lower limb joints need to be exercised to prevent lower limb venous thrombosis and maintain physical health.

[0003] In view of the clinical situation, at present, the lower limbs of patients are mainly encouraged to be actively exercised by family members or medical staff, or the lower limbs of patients are helped to be exercised to achieve lower limb exercise.

[0004] However, for some patients with severe injuries who cannot exercise independently, or some patients with strong subjective emotions who are unwilling to cooperate with the exercise, the lower limb exercise activity is difficult to proceed smoothly. CONTENT OF THE INVENTION

[0005] The embodiment of the present application provides a lower limb activity assisting device to solve the problem that the lower limb exercise activity of a patient is difficult to proceed smoothly.

[0006] The lower limb activity assisting device provided by the embodiment of the present application comprises a base, a first activity mechanism, a second activity mechanism and a treading assembly, the second activity mechanism is arranged on the base, the first activity mechanism is arranged on the second activity mechanism, the first activity mechanism is slidably connected with the second activity mechanism along the extension direction of the second activity mechanism, the treading assembly is arranged on the first activity mechanism, the treading assembly is rotatably connected with the first activity mechanism, and the treading assembly is used for being connected with the feet of a user.

[0007] The second activity mechanism drives the first activity mechanism to slide, and / or the first activity mechanism drives the treading assembly to rotate to drive at least one of the knee joint and the ankle joint of the user to flex and extend.

[0008] In a possible implementation, the lower limb activity assisting device provided by the embodiment of the present application comprises a first mounting piece and a first activity assembly, the first mounting piece is slidably connected with the second activity mechanism.

[0009] The first activity assembly is arranged on the first mounting piece and connected with one side of the treading assembly, the first mounting piece is hingedly connected with the other side of the treading assembly, and the first activity assembly drives the treading assembly to rotate relative to the first mounting piece.

[0010] In a possible implementation, the lower limb activity assisting device provided by the embodiment of the present application, the first mounting member has a first accommodating cavity, the side of the first mounting member away from the second activity mechanism has an opening, the opening is communicated with the first accommodating cavity, the stepping assembly cover is arranged on the opening and hinged to one side of the opening, the first activity assembly is arranged in the first accommodating cavity through the opening, and the first activity assembly is connected to the side of the stepping assembly facing the opening.

[0011] In a possible implementation, the lower limb activity assisting device provided by the embodiment of the present application, the first activity assembly comprises a telescopic member and a first driving member connected to the telescopic member, the two ends of the telescopic member are hinged to the first mounting member and the stepping assembly respectively, and the first driving member drives the telescopic member to extend or retract, so as to drive the stepping assembly to rotate around the hinged axis of the stepping assembly and the first mounting member.

[0012] In a possible implementation, the lower limb activity assisting device provided by the embodiment of the present application, the second activity mechanism comprises a second mounting member and a second activity assembly, the second mounting member is connected to the base, the second mounting member is slidingly connected to the first activity mechanism, the second activity assembly is arranged on the second mounting member, and the second activity assembly is connected to the first activity mechanism, so as to drive the first activity mechanism to slide along the extension direction of the second mounting member.

[0013] In a possible implementation, the lower limb activity assisting device provided by the embodiment of the present application, the second mounting member has a second accommodating cavity, a sliding groove is arranged on the second mounting member, the extension direction of the sliding groove is consistent with the extension direction of the second mounting member, the sliding groove is communicated with the second accommodating cavity, the first activity mechanism is slidingly connected to the sliding groove, the second activity assembly is arranged in the second accommodating cavity, and the second activity assembly is connected to the first activity mechanism through the sliding groove, so as to drive the first activity mechanism to slide along the sliding groove.

[0014] In a possible implementation, the lower limb activity assisting device provided by the embodiment of the present application, the second activity assembly comprises a lead screw, a sliding block and a second driving member, the lead screw is rotationally connected to the second mounting member, the extension direction of the lead screw is consistent with the extension direction of the second mounting member, the sliding block is threadedly connected to the lead screw, the sliding block is connected to the first activity mechanism, the second driving member is connected to the lead screw, and the second driving member drives the lead screw to rotate, so as to drive the sliding block to move along the extension direction of the lead screw.

[0015] In a possible implementation, the lower limb activity assisting device provided by the embodiment of the present application, two first activity mechanisms and two second activity mechanisms are arranged, the two second activity mechanisms are arranged in parallel and at intervals, and the two first activity mechanisms are arranged on the second activity mechanisms one by one.

[0016] In a possible implementation, the lower limb activity assisting device provided by the embodiment of the present application further includes a control assembly, which is arranged on the base, and is electrically connected with the first moving mechanism and the second moving mechanism respectively. The control assembly controls and records the operation parameters of the first moving mechanism and the second moving mechanism.

[0017] The operation parameters at least include operation stroke, operation speed and operation times.

[0018] In a possible implementation, the lower limb activity assisting device provided by the embodiment of the present application is provided with a communication component, which is used for communication connection with a terminal device of a user, so as to send the data of the operation parameters of the first moving mechanism and the second moving mechanism to the terminal device.

[0019] And / or, the terminal device sends a control signal to the control assembly through the communication component, so as to control the operation parameters by the control assembly.

[0020] The lower limb activity assisting device provided by the embodiment of the present application is provided with the first moving mechanism on the base, and the second moving mechanism on the first moving mechanism, and the stepping assembly on the second moving mechanism. The first moving mechanism drives the second moving mechanism to slide, and the second moving mechanism drives the stepping assembly to rotate. After the user connects the foot with the stepping assembly, the first moving mechanism drives the user's foot to move forward and backward, and helps the user to move the knee joint. Or the second moving mechanism drives the user's foot to rotate up and down, and helps the user to move the ankle joint. Therefore, when the user cannot exercise independently or does not want to cooperate with the medical staff to exercise, the lower limb activity assisting device can drive at least one of the knee joint and the ankle joint in the user's lower limb to flex and extend, without the user's active force. The exercise process is convenient, fast, efficient and good in experience, and is beneficial to the smooth exercise. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings incorporated into the specification and constituting a part of the specification show embodiments consistent with the present application and, together with the specification, serve to explain the principles of the present application.

[0022] Figure 1 The structure schematic diagram of the lower limb activity assisting device provided by the embodiment of the present application is shown in the figure;

[0023] Figure 2 The structure schematic diagram of the first moving mechanism of the lower limb activity assisting device of the present application is shown in the figure;

[0024] Figure 3 The structure schematic diagram of the second moving mechanism of the lower limb activity assisting device of the present application is shown in the figure;

[0025] Figure 4 The connection schematic diagram of the control assembly of the lower limb activity assisting device of the present application is shown in the figure.

[0026] BRIEF DESCRIPTION OF DRAWINGS

[0027] 100 - base;

[0028] 200 - first moving mechanism; 210 - first mounting piece; 211 - first accommodating cavity; 212 - opening; 220 - first moving assembly; 221 - telescopic piece;

[0029] 300 - second moving mechanism; 310 - second mounting piece; 311 - second accommodating cavity; 312 - sliding groove; 320 - second moving assembly; 321 - screw rod; 322 - sliding block;

[0030] 400 - stepping assembly; 410 - stepping plate; 420 - connecting belt;

[0031] 500 - control assembly; 510 - detecting piece; 520 - communication piece; 530 - counter; 540 - power supply.

[0032] The specific embodiments of the present application have been shown and described by the above drawings, and will be described in more detail hereinafter. These drawings and the written description are not intended to limit the scope of the present application concept in any way, but to illustrate the present application concept to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below by combining the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. In the case of no conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0034] As described in the background, for some patients who receive large surgery, suffer from severe trauma or long-term bedridden, due to slow blood flow, vascular endothelial injury or high blood coagulation, it is easy to form thrombus in the legs, and thrombus may also induce pulmonary embolism in the acute phase, endangering the lives of patients.

[0035] Therefore, for patients in the above-mentioned situation, the lower limb joints need to be exercised to prevent lower limb venous thrombosis and maintain physical health. In combination with the clinical situation, at present, the family members or medical staff supervise the patients to make the patients active and frequent lower limb activities, such as knee bending, leg lifting and other exercises, or the family members or medical staff hold the lower limbs of the patients to bend the knees or lift the legs, forcing the lower limbs of the patients to be active, so as to achieve lower limb exercise.

[0036] However, for some patients with serious injuries who cannot exercise independently, or some patients with strong subjective emotions who are unwilling to cooperate with exercise, lower limb exercise activities are difficult to proceed smoothly.

[0037] In order to overcome the defects in the prior art, the lower limb activity assisting device provided by the embodiments of the present application is provided, which comprises a base, a first moving mechanism, a second moving mechanism and a stepping assembly. The second moving mechanism is arranged on the base, the first moving mechanism is arranged on the second moving mechanism, the first moving mechanism is slidingly connected with the second moving mechanism along the extension direction of the second moving mechanism, the stepping assembly is arranged on the first moving mechanism, the stepping assembly is rotationally connected with the first moving mechanism, and the stepping assembly is used for connecting with the feet of a user.

[0038] The content of the present application will be described in detail below with reference to the drawings, so that those skilled in the art can more clearly and specifically understand the content of the present application.

[0039] Referring to Figures 1 to 3 The lower limb activity assisting device provided by the embodiments of the present application comprises a base 100, a first moving mechanism 200, a second moving mechanism 300 and a stepping assembly 400. The second moving mechanism 300 is arranged on the base 100, the first moving mechanism 200 is arranged on the second moving mechanism 300, the first moving mechanism 200 is slidingly connected with the second moving mechanism 300 along the extension direction of the second moving mechanism 300, the stepping assembly 400 is arranged on the first moving mechanism 200, the stepping assembly 400 is rotationally connected with the first moving mechanism 200, and the stepping assembly 400 is used for connecting with the feet of a user.

[0040] The second moving mechanism 300 drives the first moving mechanism 200 to slide, and / or the first moving mechanism 200 drives the stepping assembly 400 to rotate, so as to drive at least one of the knee joint and the ankle joint of the user to flex and extend.

[0041] It can be understood that the base 100 provides stable support for the installation of the first moving mechanism 200, the second moving mechanism 300 and the stepping assembly 400, and when the lower limb moving aid is used, the base 100 can be placed on the ground close to the feet of the patient, so that the patient can sit on a bed or a sofa or other more comfortable and relaxed positions to exercise the lower limbs. Therefore, the lower limb moving aid provided by the application can be used not only in hospitals but also in old-age communities or homes for patients or the elderly who need to exercise the lower limbs.

[0042] The second moving mechanism 300 is arranged on the base 100 to be stably connected with the base 100. The first moving mechanism 200 is slidingly arranged on the second moving mechanism 300, so that the second moving mechanism 300 can drive the first moving mechanism 200 to slide along the extension direction of the second moving mechanism 300, wherein the extension direction of the second moving mechanism 300 should be parallel to the legs of the user, extending from the side close to the user to the side away from the user, which is more in line with the flexion and extension action of the knee joint of the user and has a better use experience.

[0043] The stepping assembly 400 is arranged on the first moving mechanism 200 and is rotationally connected with the first moving mechanism 200, so that the first moving mechanism 200 can drive the stepping assembly 400 to rotate relative to the first moving mechanism 200. When the user steps on the stepping assembly 400 with the feet, the stepping assembly 400 can drive the user's feet to move.

[0044] The stepping assembly 400 includes a stepping plate 410 connected with the first moving mechanism 200 and a connecting belt 420 arranged on the stepping plate 410 away from the first moving mechanism 200. The stepping plate 410 is used for the user to step on with the soles of the feet and can be arranged in a structure similar to slippers or footrests. The connecting belt 420 is used for binding the ankles and lower legs of the user, so that the feet of the user can be stably connected with the stepping plate 410 and not separated. The specific structure of the connecting belt 420 can be a connecting belt 420 with a quick buckle in the prior art, and the length of the connecting belt 420 can be adjusted.

[0045] Therefore, the lower limb moving aid provided by the embodiment of the application drives the first moving mechanism 200 to slide the second moving mechanism 300 and drives the second moving mechanism 300 to rotate the stepping assembly 400.

[0046] In this way, after the user connects the foot with the treading assembly 400, the first moving mechanism 200 can drive the user's foot to move forward and backward, helping the user to move the knee joint, or the second moving mechanism 300 can drive the user's foot to rotate up and down, helping the user to move the ankle joint. Therefore, when the user cannot exercise independently or does not want to cooperate with the medical staff to exercise, the lower limb moving auxiliary device can actively drive at least one of the knee joint and the ankle joint in the user's lower limb to flex and extend, without the user actively exerting force. The exercise process is convenient, fast, efficient, and the experience is good, which is conducive to the smooth exercise.

[0047] In some embodiments, referring to Figure 1 and Figure 2 , the first moving mechanism 200 includes a first mounting member 210 and a first moving assembly 220, and the first mounting member 210 is in sliding connection with the second moving mechanism 300.

[0048] The first moving assembly 220 is arranged on the first mounting member 210 and connected with one side of the treading assembly 400, and the first mounting member 210 is hingedly connected with the other side of the treading assembly 400, and the first moving assembly 220 drives the treading assembly 400 to rotate relative to the first mounting member 210.

[0049] The first mounting member 210 is in sliding connection with the second moving mechanism 300, so that the second moving mechanism 300 can drive the first moving mechanism to slide along the second moving mechanism 300, facilitating the user to move the knee joint.

[0050] The first moving assembly 220 is arranged on the first mounting member 210, and the first moving assembly 220 is connected with the treading assembly 400, specifically connected with the side of the treading assembly 400 farther away from the user, while the side of the treading assembly 400 closer to the user is hingedly connected with the first mounting member 210. This arrangement is more in line with the user's foot movement action, so that the first moving assembly 220 can drive the treading assembly 400 to move, and the treading assembly 400 can drive the user's foot to lift and drop up and down.

[0051] In specific implementation, referring to Figure 1 and Figure 2 , the first mounting member 210 has a first accommodating cavity 211, and the side of the first mounting member 210 away from the second moving mechanism 300 has an opening 212 in communication with the first accommodating cavity 211. The treading assembly 400 is arranged on the opening 212 and hingedly connected with one side of the opening 212. The first moving assembly 220 is arranged in the first accommodating cavity 211 through the opening 212, and the first moving assembly 220 is connected with the side of the treading assembly 400 facing the opening 212.

[0052] The first installation member 210 is provided with a first accommodating cavity 211 to provide installation space for the first movable assembly 220. An opening 212 is formed on the side of the first installation member 210 away from the second movable mechanism 300 and communicates with the first accommodating cavity 211, so as to facilitate the installation of the first movable assembly 220 into the first accommodating cavity 211 and avoid interference between the first installation member 210 and the first movable assembly 220.

[0053] The stepping plate 410 of the stepping assembly 400 covers the opening 212 and is hinged to the side of the opening 212 close to the user, so as to drive the stepping plate 410 to rotate relative to the installation member together with the first movable assembly 220.

[0054] Further, the first movable assembly 220 comprises a telescopic member 221 and a first driving member connected with the telescopic member 221. The two ends of the telescopic member 221 are hinged to the first installation member 210 and the stepping assembly 400 respectively, and the first driving member drives the telescopic member 221 to extend or retract, so as to drive the stepping assembly 400 to rotate around the hinged axis of the stepping assembly 400 and the first installation member 210.

[0055] The telescopic member 221 is specifically a telescopic rod member such as a hydraulic rod or a threaded sleeve rod. The first driving member is connected with the telescopic member 221 and drives a hydraulic pump or a driving motor connected with the telescopic member 221. In this way, the two ends of the telescopic member 221 are hinged to the first installation member 210 and the stepping plate 410 respectively. When the length of the telescopic member 221 changes, the angle of the telescopic member 221 can be adjusted through the hinged shafts at the two ends, so as to ensure that the telescopic member 221 can stably support the stepping plate 410, so that the stepping plate 410 can be driven to rotate around the hinged axis of the telescopic member 221 and the first installation member 210. Figure 2 The center of the double-headed arrow curve shown in the figure is the hinged axis, and the stepping plate 410 rotates clockwise or counterclockwise along the arrow direction.

[0056] In some embodiments, the first installation member 210 is provided with a first accommodating cavity 211 to provide installation space for the first movable assembly 220. An opening 212 is formed on the side of the first installation member 210 away from the second movable mechanism 300 and communicates with the first accommodating cavity 211, so as to facilitate the installation of the first movable assembly 220 into the first accommodating cavity 211 and avoid interference between the first installation member 210 and the first movable assembly 220. Figure 1 and Figure 3 As shown in

[0057] The second installation member 310 is fixedly connected with the base 100 to ensure the stability of the position of the second installation member 310. The second movable assembly 320 is arranged on the second installation member 310 and connected with the first movable mechanism 200, so as to drive the first movable mechanism 200 to slide along the extension direction of the second installation member 310. The overall structure is stable and reliable.

[0058] In specific implementation, the first installation member 210 is provided with a first accommodating cavity 211 to provide installation space for the first movable assembly 220. An opening 212 is formed on the side of the first installation member 210 away from the second movable mechanism 300 and communicates with the first accommodating cavity 211, so as to facilitate the installation of the first movable assembly 220 into the first accommodating cavity 211 and avoid interference between the first installation member 210 and the first movable assembly 220. Figure 1 and Figure 3As shown in Figs. 2 and 3, the second mounting member 310 has a second accommodating cavity 311, and a sliding groove 312 is formed in the second mounting member 310 and communicates with the second accommodating cavity 311, the sliding direction of the sliding groove 312 is consistent with the extending direction of the second mounting member 310, the first movable mechanism 200 is slidably connected with the sliding groove 312, and the second movable assembly 320 is arranged in the second accommodating cavity 311 and connected with the first movable mechanism 200 through the sliding groove 312 to drive the first movable mechanism 200 to slide along the sliding groove 312.

[0059] The second mounting member 310 is provided with the second accommodating cavity 311, and the second movable assembly 320 is arranged in the second accommodating cavity 311, so that the overall structure is simple and compact. The sliding groove 312 is formed in the second mounting member 310 and communicates with the second accommodating cavity 311, the first mounting member 210 of the first movable mechanism 200 is slidably connected with the sliding groove 312, the sliding of the first mounting member 210 is stably guided by the sliding groove 312, and the sliding of the first movable mechanism 200 is smoother.

[0060] In addition, referring to Figs. 2 and 3, Figure 1 and Figure 3 As shown in Figs. 2 and 3, the second movable assembly 320 comprises a lead screw 321, a sliding block 322 and a second driving member, the lead screw 321 is rotatably connected with the second mounting member 310, the extending direction of the lead screw 321 is consistent with the extending direction of the second mounting member 310, the sliding block 322 is threadedly connected with the lead screw 321, the sliding block 322 is connected with the first movable mechanism 200, and the second driving member is connected with the lead screw 321, the second driving member drives the lead screw 321 to rotate, so that the lead screw 321 drives the sliding block 322 to move along the extending direction of the lead screw 321.

[0061] In this way, the sliding of the first movable mechanism 200 along the second movable mechanism 300 is smoother and more stable, the structure is simple and compact, and the maintenance is easy. Specifically, the second driving member is a driving motor connected with the lead screw 321, the sliding block 322 is threadedly connected with the lead screw 321 and slidably connected with the sliding groove 312, and the sliding block 322 is fixedly connected with the bottom of the first mounting member 210, the lead screw 321 is driven to rotate or reverse by the driving motor, so that the sliding block 322 drives the first movable mechanism 200 to slide along the sliding groove 312, as shown by the bidirectional arrow direction in Fig. 2. Figure 3

[0062] ​Furthermore, in practical implementation, two of each of the first and second activity mechanisms 200 are provided, with the two second activity mechanisms 300 arranged in parallel and spaced apart, and the two first activity mechanisms 200 corresponding to each other on the second activity mechanism 300. The two sets of first and second activity mechanisms 200 facilitate simultaneous exercise of both legs. Based on the aforementioned structural arrangement of the first and second activity mechanisms 200 and 300, each of the first activity components 220 independently drives its respective pedal 410, and each second activity component 320 independently drives its first activity mechanism 200. Therefore, when a user needs to exercise a specific leg or a specific part of the lower limb, only the corresponding first and second activity mechanisms 200 need to be activated, making the use of the lower limb activity assistive device more flexible and user-friendly.

[0063] And refer to Figure 1 and Figure 4 As shown, in some embodiments, the lower limb movement assistive device provided in this application embodiment further includes a control component 500. The control component 500 is disposed on the base 100 and is electrically connected to the first movement mechanism 200 and the second movement mechanism 300 respectively. The control component 500 controls and records the operating parameters of the first movement mechanism 200 and the second movement mechanism 300.

[0064] The operating parameters should include at least the operating distance, operating speed, and number of runs.

[0065] By setting up the control component 500, the use of the lower limb activity assistive device can be made more convenient and targeted. It is easy to adjust the running stroke, running speed and running number of the first activity mechanism 200 and the second activity mechanism 300 according to the actual exercise needs, that is, to adjust the exercise intensity of the user.

[0066] The control component 500 specifically includes a counter 530, a controller, and a detection element 510. The detection element 510 and the counter 530 are both electrically connected to the controller. The controller is further electrically connected to the first active mechanism 200 and the second active mechanism 300 respectively, so as to control the two sets of first active mechanisms 200 and the two sets of second active mechanisms 300, that is, the four active mechanisms respectively.

[0067] The control component 500 is integrated between the two sets of first movable mechanisms 200. Two detection elements 510 are provided, located on opposite sides of the mounting housing of the control component 500 and facing the two first movable mechanisms 200 respectively. The detection elements 510 can be photoelectric sensors to detect the sliding stroke of the first movable mechanism 200 relative to the second movable mechanism 300, and the rotational stroke of the pedal 410 relative to the first movable mechanism 200, effectively recording the travel distance.

[0068] The counter 530 is also electrically connected to the detection element 510 to record the number of times the first active mechanism 200 or the pedal 410 passes through the detection element 510, which is equivalent to recording the number of runs.

[0069] Based on the above-mentioned running distance and number of runs, the controller can calculate the running speed, or the controller can calculate the third value if it has any two of the running distance, number of runs, and running speed.

[0070] Furthermore, referring to Figure 1 and Figure 3 As shown, the control component 500 is provided with a communication component 520, which is used to communicate with the user's terminal device to send data on the operating parameters of the first active mechanism 200 and the second active mechanism 300 to the terminal device.

[0071] And / or, the terminal device sends control signals to the control component 500 via the communication component 520, so that the control component 500 controls the operating parameters.

[0072] Understandably, by configuring a communication device (such as a GPRS, 4G, or 5G module) to connect with the user's terminal device, such as a mobile phone or computer, the user can be aware of the exercise parameters and intensity, and easily adjust these parameters via their terminal device. Furthermore, this setup also allows family members or medical staff to monitor the patient's exercise progress, enabling adjustments to the exercise plan and helping the patient effectively prevent lower extremity deep vein thrombosis.

[0073] The specific circuit settings of control component 500 are as follows: Figure 4 As shown, the control circuit includes four sets of time switches W2, W3, W8, and W9 connected via circuit board wiring. These four time switches correspond to two first movable mechanisms 200 and two second movable mechanisms 300, respectively. Pins 3 and 4 of time switches W2 and W3 are connected to the two sets of second movable mechanisms 300, while pins 3 and 4 of time switches W8 and W9 are connected to the two sets of first movable mechanisms 200. Pins 1 and 2 of the input terminals of time switches W2, W3, W8, and W9 are connected to pins 3 and 4 of the output of power supply 540, respectively.

[0074] The detection circuit includes a time switch W7, two relays K1, and two detectors 510 connected via circuit board wiring. Pins 1 and 2 of the input terminals of the two detectors 510 and pins 1 and 2 of the input terminals of the time switch W7 are respectively connected to pins 3 and 4 of the power supply 540. Pin 3 of the power supply 540 output terminal of the two detectors 510 is connected to the input terminals of the two relays K1 respectively. Pins 3 and 4 of the output terminal of the time switch W7 are connected to the power supply 540 input terminal of the third relay K2 respectively.

[0075] The input terminals 1 and 2 of power supply 540 are connected to the AC 220V power supply 540 via wires. The output terminals 3 and 4 of power supply 540 are connected in series via power supply switch S1, and then connected via wires to the input terminals 1 and 2 of counter 530, the input terminals 1 and 2 of communication device 520, the input terminals 1 and 2 of time control switch W2 of control circuit, and the input terminals 1 and 2 of time control switch W7 of detection circuit. The output terminal of counter 530 is connected to the input terminal of communication device 520. The two signal output terminals of detection circuit are connected to the counting key T1 of counter 530 via two corresponding relays K1, and relay K2 is connected to the clear key T2 of counter 530.

[0076] In practical use, the user places one or both feet on the corresponding foot pedals 410 and then secures the connecting strap 420. After turning on the power switch S1 540, the detection circuit with the detection element 510, the control circuit with the controller, the counter 530, and the communication element 520 are energized. When the time switch W7 is energized, it outputs a current for 2 seconds or other durations to the relay K2. The relay K2 is energized and engages, causing the reset button T2 of the counter 530 to close for the corresponding duration, resetting the accumulated count from the previous exercise to zero. When the time switches W2 and W3 are energized, they sequentially output current for 8 seconds or other durations (the longer the output time, the longer the travel of the second moving mechanism 300). When the corresponding second moving mechanism 300 is energized, it moves the user's foot forward or backward. When the time switches W8 and W9 are energized, they sequentially output current for 4 seconds or other durations (the longer the output time, the longer the travel of the first active mechanism 200). When the first active mechanism 200 is energized, it drives the user's foot to move upward or downward.

[0077] Furthermore, when the second active mechanism 300 is running, each time it passes the corresponding detection element 510, it will block the probe of the detection element 510, energizing the corresponding relay K1 and activating the counter 530's counting key T1. Under the action of its internal circuitry, the counter 530 will send the accumulated count data to the terminal device in real time via the communication element 520.

[0078] Furthermore, limit switches are located at both ends of the second movable mechanism 300. When the first movable mechanism 200 moves to the end of the slide 312, the limit switches are triggered, and the second movable mechanism 300 is de-energized and then energized in the reverse direction, causing the second movable mechanism 300 to drive the first movable mechanism 200 to run in the opposite direction. The detection element 510 is also equipped with an adjustment knob for adjusting the detection distance. By adjusting the position of the detection element 510 using the knob, the detection distance can be changed according to the required training intensity.

[0079] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0080] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0081] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0082] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90° or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A lower limb movement assistive device, characterized in that, The device includes a base (100), a first movable mechanism (200), a second movable mechanism (300), and a foot pedal assembly (400). The second movable mechanism (300) is disposed on the base (100), and the first movable mechanism (200) is disposed on the second movable mechanism (300). The first movable mechanism (200) is slidably connected to the second movable mechanism (300) along the extension direction of the second movable mechanism (300). The foot pedal assembly (400) is disposed on the first movable mechanism (200) and is rotatably connected to the first movable mechanism (200). The foot pedal assembly (400) is used to connect with the user's foot. The second active mechanism (300) drives the first active mechanism (200) to slide, and / or the first active mechanism (200) drives the pedal assembly (400) to rotate, thereby causing flexion and extension of at least one of the user's knee and ankle joints.

2. The lower limb movement assistive device according to claim 1, characterized in that, The first movable mechanism (200) includes a first mounting member (210) and a first movable component (220), wherein the first mounting member (210) is slidably connected to the second movable mechanism (300); The first movable component (220) is disposed on the first mounting member (210) and connected to one side of the pedal assembly (400). The first mounting member (210) is hinged to the other side of the pedal assembly (400). The first movable component (220) drives the pedal assembly (400) to rotate relative to the first mounting member (210).

3. The lower limb movement assistive device according to claim 2, characterized in that, The first mounting member (210) has a first receiving cavity (211). The first mounting member (210) has an opening (212) on the side away from the second movable mechanism (300). The opening (212) communicates with the first receiving cavity (211). The pedal assembly (400) covers the opening (212) and is hinged to one side of the opening (212). The first movable assembly (220) is disposed in the first receiving cavity (211) through the opening (212). The first movable assembly (220) is connected to the side of the pedal assembly (400) facing the opening (212).

4. The lower limb movement assistive device according to claim 2, characterized in that, The first movable component (220) includes a telescopic member (221) and a first driving member connected to the telescopic member (221). The two ends of the telescopic member (221) are respectively hinged to the first mounting member (210) and the pedal assembly (400). The first driving member drives the telescopic member (221) to extend and retract, so as to drive the pedal assembly (400) to rotate around the hinge axis between the pedal assembly (400) and the first mounting member (210).

5. The lower limb movement assistive device according to claim 1, characterized in that, The second movable mechanism (300) includes a second mounting member (310) and a second movable component (320). The second mounting member (310) is connected to the base (100) and is slidably connected to the first movable mechanism (200). The second movable component (320) is disposed on the second mounting member (310) and is connected to the first movable mechanism (200) to drive the first movable mechanism (200) to slide along the extension direction of the second mounting member (310).

6. The lower limb movement assistive device according to claim 5, characterized in that, The second mounting member (310) has a second receiving cavity (311). A sliding groove (312) is provided on the second mounting member (310). The extension direction of the sliding groove (312) is consistent with the extension direction of the second mounting member (310). The sliding groove (312) communicates with the second receiving cavity (311). The first movable mechanism (200) is slidably connected to the sliding groove (312). The second movable component (320) is disposed in the second receiving cavity (311). The second movable component (320) is connected to the first movable mechanism (200) through the sliding groove (312) to drive the first movable mechanism (200) to slide along the sliding groove (312).

7. The lower limb movement assistive device according to claim 5, characterized in that, The second movable component (320) includes a lead screw (321), a slider (322), and a second drive member. The lead screw (321) is rotatably connected to the second mounting member (310), and the extension direction of the lead screw (321) is consistent with the extension direction of the second mounting member (310). The slider (322) is threadedly connected to the lead screw (321) and is connected to the first movable mechanism (200). The second drive member is connected to the lead screw (321) and drives the lead screw (321) to rotate so that the lead screw (321) drives the slider (322) to move along the extension direction of the lead screw (321).

8. The lower limb mobility assist device according to any one of claims 1-7, characterized in that, Two of each of the first active mechanism (200) and the second active mechanism (300) are provided. The two second active mechanisms (300) are arranged in parallel and spaced apart. The two first active mechanisms (200) are arranged one-to-one on the second active mechanism (300).

9. The lower limb movement assistive device according to any one of claims 1-7, characterized in that, It also includes a control component (500), which is disposed on the base (100). The control component (500) is electrically connected to the first movable mechanism (200) and the second movable mechanism (300) respectively. The control component (500) controls and records the operating parameters of the first movable mechanism (200) and the second movable mechanism (300). The operating parameters include at least the operating distance, operating speed, and number of runs.

10. The lower limb movement assistive device according to claim 9, characterized in that, The control component (500) is provided with a communication device (520), which is used to communicate with the user's terminal device to send data of the operating parameters of the first active mechanism (200) and the second active mechanism (300) to the terminal device; And / or, the terminal device sends a control signal to the control component (500) through the communication device (520) so that the control component (500) controls the operating parameters.

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