Sitting / lying type lower limb rehabilitation training device

Abstract

The utility model provides a sitting / lying type lower limb rehabilitation training device, and relates to the technical field of medical rehabilitation equipment. Comprising a power adapter, an end plate, a pedal plate, a control box, a bottom supporting plate, a remote controller, a sliding block assembly, a damping hinge, a synchronous belt tensioning mechanism, a synchronous belt, a motor, a speed regulation module and a first synchronous belt wheel. By operating the control button or the remote controller, the feet of the patient are driven to do accelerated / decelerated linear reciprocating motion along the sliding groove through the motor, the synchronous belt, the sliding block assembly and the pedal plate. The pedal plate can rotate around two circumferential lines of the damping hinge so as to adapt to rehabilitation training such as hip flexion / extension, adduction and abduction, knee joint and ankle joint dorsal extension / toe curve, inward rotation / outward rotation and the like.

Description

Technical Field

[0001] This utility model relates to a medical rehabilitation device, and more particularly to a sitting / lying lower limb rehabilitation training device. Background Technology

[0002] Spinal cord injury, brain injury, and other factors can easily lead to lower limb motor dysfunction, further impairing motor function, causing gradual muscle atrophy in the lower limbs, and limiting mobility. Based on the remodeling and reconstruction mechanisms of the human nervous system, rehabilitation training devices can be used to improve patients' lower limb motor abilities. Traditional sitting / lying lower limb rehabilitation training devices are mostly single-function, complex in structure, have high human-machine coupling force, and are inconvenient to use. Therefore, designing a sitting / lying lower limb rehabilitation training device is of great significance.

[0003] Numerous domestic and international patents exist in this field, with similar functions. One example is a foot-driven lower limb rehabilitation training device (patent number 201810174147.0), which includes a lower leg fixation component, a drive screw, and electromechanical components, enabling rehabilitation training in three degrees of freedom: plantar flexion / dorsiflexion, inversion / eversion, and adduction / abduction. However, this device has a limited range of motion and insufficient load-bearing capacity during movement. Another example is a dual-axis active and passive upper and lower limb rehabilitation training mechanism (patent number 200910031938.9), which includes a drive unit, frame, lower limb rehabilitation unit, and upper limb rehabilitation unit. It utilizes a reciprocating crank to rotate a linkage mechanism composed of a thigh support and a lower leg support, driving alternating flexion and extension rehabilitation training of both legs. However, this device only enables hip and knee flexion and extension movements and cannot be used while sitting.

[0004] To address the aforementioned problems, this invention proposes a sitting / lying lower limb rehabilitation training device. Patients can install one or two of these devices on either side of a chair or bed to achieve rehabilitation training in both sitting and lying positions. The device uses buttons or a remote control to start / stop, accelerate / decelerate the motor. The motor drives the first synchronous pulley to rotate, which in turn pulls the sliding plate and foot pedals along a groove in a reciprocating linear motion. The foot pedals have two rotational functions relative to the sliding plate, enabling hip adduction / abduction, ankle internal / external rotation, and hip, knee, and ankle extension / flexion movements. Furthermore, this device does not bind the lower limbs, greatly reducing coupling forces and ensuring free and comfortable rehabilitation training. Summary of the Invention

[0005] The purpose of this invention is to improve the lower limb motor ability of patients by means of a rehabilitation training device, and to provide a sitting / lying lower limb rehabilitation training device that can be placed next to a chair or on a hospital bed, allowing patients to perform lower limb rehabilitation exercises in a sitting or lying position.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A sitting / lying lower limb rehabilitation training device mainly includes a power adapter, end plates, foot pedals, a control box, a bottom support plate, a remote control, a slider assembly, damping hinges, a synchronous belt tensioning mechanism, a synchronous belt, a motor, a speed control module, and a first synchronous belt pulley. The bottom support plate has an end plate connected to each end of its top surface, and each end plate is equipped with a first proximity switch or a second proximity switch. Additionally, a synchronous belt tensioning mechanism is connected to the top surface of one of the end plates. The bottom support plate has a control box and two or more rubber foot pads installed on its bottom surfaces at both ends. A side plate is installed on each side of the top surface of the bottom support plate, and each side plate is coplanar with the side of the end plate. A reinforcing plate is installed in the middle of the top surface of the bottom support plate, and a C-shaped groove is installed on each side of the reinforcing plate.

[0008] The slider assembly includes a slider bracket, pulleys, pulley isolation posts, a timing belt connecting plate, and a hinge bracket. The pulleys and pulley isolation posts are installed on the slider bracket using screws, with at least four pulleys installed symmetrically relative to the slider bracket. The upper end of the timing belt connecting plate is connected to the inner side of the slider bracket, and the other end is secured to the timing belt with screws, allowing the timing belt to pull the slider assembly back and forth along the groove. A hinge bracket is mounted on the slider bracket, and a damping hinge is mounted on the hinge bracket. A foot pedal is mounted on the damping hinge, which can rotate around the R1 or R2 axis of the damping hinge.

[0009] The control box contains a motor speed control module, a motor forward / reverse control module, and a motor. The motor is mounted inside the control box with screws, and its output shaft passes through the upper wall, bottom support plate, and reinforcing plate of the control box, engaging with the first synchronous pulley. A start button, a speed control button, and a power adapter interface are installed on the side of the control box. The motor is started via the start button or the start button on the remote control. The slider assembly and foot pedal reciprocate along the C-shaped slide groove via the first synchronous pulley and synchronous belt. When the pulley touches the first or second proximity switch on one side, the motor's rotation direction changes, thus changing the movement direction of the slider assembly and foot pedal. Furthermore, the speed of the slider assembly and foot pedal can be changed via the speed control button or the start button on the remote control to adapt to the patient's lower limb rehabilitation exercise needs. During operation, it can be placed next to a chair or on a hospital bed, allowing the user to perform lower limb rehabilitation exercises in a sitting or lying position. Additionally, two or more anti-slip pads are installed on the bottom corners of the control box.

[0010] The foot pedal can rotate in two directions relative to the slider support to accommodate hip and knee flexion / extension, ankle dorsiflexion / toe flexion, and internal / external rotation rehabilitation training.

[0011] The synchronous belt tensioning mechanism includes a support frame, a synchronous pulley locking screw, an adjusting knob, a second synchronous pulley, and an adjusting frame. The support frame has two mounting holes and is fixed to the upper surface of the end plate with screws. The synchronous pulley locking screw passes through a long groove on the support frame to mount the second synchronous pulley onto the adjusting frame. The adjusting knob passes through the end of the support frame and is threaded to the end of the adjusting frame. Rotating the knob causes the adjusting frame, the second synchronous pulley, and the synchronous pulley locking screw to reciprocate along the long groove on the support frame, thereby achieving the relaxation / tensioning of the synchronous belt.

[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows: A sitting / lying lower limb rehabilitation training device is proposed, which, via a control button or remote control, drives the patient's foot to move linearly back and forth along a sliding groove, accelerating / decelerating, through a motor, synchronous belt, slider assembly, and foot pedal. During operation, one or two of these devices can be placed longitudinally / laterally relative to the body next to a chair or on a hospital bed, allowing the patient to perform single / double leg rehabilitation training in a sitting or lying position. The foot pedal of this device can rotate in two directions to accommodate rehabilitation training such as hip flexion / extension, adduction / abduction, knee and ankle dorsiflexion / toe flexion, and internal / external rotation. Furthermore, this utility model has a simple transmission structure, is easy to carry, and greatly reduces coupling forces on the limbs when they are bound, ensuring free and comfortable rehabilitation training. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a sitting / lying lower limb rehabilitation training device proposed in this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of a sitting / lying lower limb rehabilitation training device proposed in this utility model;

[0015] Figure 3 This is a schematic diagram of the transmission device structure of a sitting / lying lower limb rehabilitation training device proposed in this utility model;

[0016] Figure 4 This is a schematic diagram of the transmission slider assembly structure of a sitting / lying lower limb rehabilitation training device proposed in this utility model;

[0017] Figure 5 This is a schematic diagram of the drive device structure of a sitting / lying lower limb rehabilitation training device proposed in this utility model;

[0018] Figure 6 This is a schematic diagram of the tensioning mechanism structure of a sitting / lying lower limb rehabilitation training device proposed in this utility model; Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. To make the objectives, technical solutions, and advantages of this application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this application and are not intended to limit this application.

[0020] Please see Figure 1 The image shows a sitting / lying lower limb rehabilitation training device provided in an embodiment of this application. It mainly includes a power adapter 1, an end plate 2, foot pedals 3, a control box 4, a bottom support plate 5, a remote control 6, a slider assembly 7, a damping hinge 8, a synchronous belt tensioning mechanism 9, a synchronous belt 12, a motor 13, a speed control module 20, and a first synchronous belt pulley 21. An end plate 2 is connected to each end of the top surface of the bottom support plate 5, and the top surface of one end plate 2 is connected to the synchronous belt tensioning mechanism 9. The control box 4 and two or more rubber foot pads 25 are respectively installed at both ends of the bottom surface of the bottom support plate 5. A side plate 10 is installed on each side of the top surface of the bottom support plate 5, and each side plate 10 is coplanar with the side surface of the end plate 2. Figure 3 As shown. A reinforcing plate 14 is installed in the middle of the top surface of the bottom support plate 2, and a C-shaped groove 15 is installed on each side of the reinforcing plate 14.

[0021] The slider assembly 7 includes a slider bracket 7-1, a pulley 7-2, a pulley isolation post 7-3, a timing belt connecting plate 7-4, and a hinge bracket 7-5, as shown below. Figure 4 As shown. Pulleys 7-2 and pulley isolation posts 7-3 are installed on the slider bracket 7-1 via screw connections, with at least four pulleys 7-2 installed symmetrically relative to the slider bracket 7-1. The upper end of the timing belt connecting plate 7-4 is connected to the inner side of the slider bracket 7-1, and the other end is locked to the timing belt 12 via screws, causing the timing belt 12 to pull the slider assembly 7 to slide back and forth along the slide groove 15. A hinge bracket 7-5 is installed on the slider bracket 7-1, and a damping hinge 8 is installed on the hinge bracket 7-5. A foot pedal 3 is installed on the damping hinge 8, which can rotate around the R1 or R2 axis of the damping hinge 8.

[0022] The control box 4 houses a motor speed control module 20, a motor forward / reverse control module 16, and a motor 13. The motor 13 is mounted inside the control box 4 using screws. Its output shaft passes through the upper wall, bottom support plate 5, and reinforcing plate 14 of the control box 4, and engages with the first synchronous pulley 21. The control box 4 has a start button 17 and a speed control button 18 on its side, which control the start of the equipment and adjust the running speed of the slider assembly 7, respectively. Two or more anti-slip pads 19 are installed at the bottom corners of the control box 4. Figure 5 As shown; in addition, the control box 4 is also equipped with a power adapter 1 interface to provide 12~24V DC power to the equipment.

[0023] The synchronous belt tensioning mechanism 9 includes a support frame 9-1, a synchronous pulley locking screw 9-2, an adjusting knob 9-3, a second synchronous pulley 9-4, and an adjusting frame 9-5, as follows. Figure 6 As shown. The support frame 9-1 has two mounting holes 24, which are used to fix it to the upper surface of the end plate 2 with screws. The timing pulley locking screw 9-2 passes through the long groove 23 on the support frame 9-1 to install the second timing pulley 9-4 onto the adjusting frame 9-5. The adjusting knob 9-3 passes through the end of the support frame 9-1 and is threadedly connected to the end of the adjusting frame 9-5. By rotating the knob 9-3, the adjusting frame 9-5, the second timing pulley 9-4, and the timing pulley locking screw 9-2 reciprocate along the long groove 23 on the support frame 9-1, thereby achieving the relaxation / tensioning of the timing belt.

[0024] Each of the two end plates 2 is equipped with a first proximity switch 11-1 or a second proximity switch 11-2, the function of which is to change the direction of the motor.

[0025] One end of the power adapter 1 is inserted into the adapter interface of the control box 4, and the other end is inserted into a 220V socket. The motor 13 is started by the start button 17 or the start button on the remote control 6. The first synchronous pulley 21 and the synchronous belt 12 cause the slider assembly 7 and the foot pedal 3 to slide back and forth along the C-shaped groove 15. When the pulley 7-2 touches the first proximity switch 11-1 or the second proximity switch 11-2 on one side of the end plate 2, the rotational direction of the motor 13 changes, which in turn causes the slider assembly 7 and the foot pedal 3 to change their direction of movement. Figure 3 As shown. In addition, the movement speed of the slider assembly 7 and the foot pedal 3 can be changed by adjusting the speed button 18 or the start button of the remote control 6 to adapt to the patient's lower limb rehabilitation exercise needs.

[0026] When in use, it can be placed next to a chair or on a hospital bed, allowing the person to perform lower limb rehabilitation exercises in a sitting or lying position. Because the foot pedal 3 of this invention can rotate in two directions, it can accommodate rehabilitation training such as hip flexion / extension, adduction and abduction, knee and ankle dorsiflexion / toe flexion, internal rotation / external rotation, etc.

[0027] For ease of description, spatial relative terms such as "on the top surface," "on the bottom surface," "on the side surface," and "at the middle of the top surface" are used here to describe the spatial positional relationship of a part or feature to other parts or features as shown in the figure. It should be understood that spatial relative terms are intended to encompass different orientations of the part in use or operation, in addition to the orientation described in the figure. For example, if the text describes "both sides of the top surface..." or "the middle of the top surface...", it indicates the edge portion of the upper surface of the plate and the middle portion of the upper surface.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sitting / lying type lower limb rehabilitation training device, mainly comprising a power adapter (1), an end plate (2), a foot pedal (3), a control box (4), a bottom support plate (5), a remote controller (6), a slider assembly (7), and a synchronous belt tensioning mechanism (9); characterized in that, The remote controller (6) is used to control the start / stop, acceleration / deceleration of the slider assembly (7); the slider assembly (7) comprises a slider support (7-1), a pulley (7-2), a pulley isolation column (7-3), a synchronous belt connecting plate (7-4), a hinge support (7-5); the hinge support (7-5) is installed on the slider support (7-1), and a damping hinge (8) is installed on the hinge support (7-5); a foot pedal (3) is installed on the damping hinge (8) and can rotate around an R1 or R2 axis of the damping hinge (8); The synchronous belt tensioning mechanism (9) comprises a support frame (9-1), a synchronous pulley locking screw (9-2), an adjusting knob (9-3), a second synchronous pulley (9-4) and an adjusting frame (9-5); by rotating the knob (9-3), the adjusting frame (9-5), the second synchronous pulley (9-4) and the synchronous pulley locking screw (9-2) are moved back and forth along a long groove (23) on the support frame (9-1), so that the synchronous belt is loosened / tensioned.

2. The sitting / lying type lower limb rehabilitation training device according to claim 1, characterized in that, The top surface of the bottom support plate (5) is connected with an end plate (2) at each end, the bottom surface of the bottom support plate (5) is respectively provided with a control box (4) and two or more rubber foot pads (25); the two end plates (2) are respectively provided with a first proximity switch (11-1) or a second proximity switch (11-2), which is used to change the direction of the motor; the top surface of one of the end plates (2) is provided with a synchronous belt tensioning mechanism (9).

3. The sitting / lying type lower limb rehabilitation training device according to claim 1, characterized in that, The control box (4) is internally provided with a motor speed regulating module (20), a motor forward / reverse rotation control module (16) and a motor (13); the motor (13) is installed in the control box (4) by means of screws, the output shaft of the motor (13) penetrates through the upper wall of the control box (4), the bottom support plate (5) and the reinforcing plate (14) and cooperates with the first synchronous pulley (21).

4. The sitting / lying type lower limb rehabilitation training device according to claim 3, characterized in that, The control box (4) is provided with a start button (17) and a speed regulating button (18) on the side surface, which are used to control the start of the device and the speed of the slider assembly (7); two or more anti-skid foot pads (19) are installed at the bottom corners of the control box (4).

5. The sitting / lying type lower extremity rehabilitation training device according to claim 4, characterized in that, The control box (4) is provided with a power adapter (1) interface, which is used to provide 12-24V DC power for the device; the motor (13) is started by starting the button (17) or the start button of the remote controller (6), and the slider assembly (7) and the foot pedal (3) are moved back and forth along the C-shaped sliding groove (15) by means of the first synchronous pulley (21) and the synchronous belt (12); when the pulley (7-2) touches the first proximity switch (11-1) or the second proximity switch (11-2) on one side of the end plate (2), the direction of the motor (13) is changed, and then the direction of the slider assembly (7) and the foot pedal (3) is changed.

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