A limb strength training loading measurement device

Abstract

The present invention discloses a limb strength training loading and measuring device, which includes a frame, a torque sensor, an inclination sensor, a support mechanism for fixing a limb, and a loading mechanism for forming a movement resistance; one end of the torque sensor is fixedly connected to the support mechanism, the other end of the torque sensor is fixedly connected to the loading mechanism, and the whole formed by the fixation of the torque sensor with the loading mechanism and the support mechanism is rotatably installed on the frame to form a rotatable component, and the inclination sensor is arranged on the rotatable component. The structure of the present invention is simple, safe and reliable. By pairing the torque sensor and the inclination sensor, the training situation of the trainer can be measured conveniently and quickly in real time, including the torque received, the movement amplitude range, the work done, etc. These data provide a basis for the evaluation of the training effect, increase the interactive effect of the training, and facilitate the medical staff to adjust and record the training of the trainer in time.

Description

Technical Field

[0001] The present invention relates to the field of assisted rehabilitation devices, and more particularly to a limb strength training loading and measuring device. Background Art

[0002] The existing upper (lower) limb rehabilitation chairs on the market do not have data recording and analysis functions. Trainers cannot accurately and timely know the training situation, the training is relatively boring, and the progress of the training cannot be evaluated. As a result, adjustments cannot be made in a timely manner, delaying the training and treatment. This non-targeted training leads to low training effectiveness. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a limb strength training loading and measuring device that can conveniently and quickly measure the training situation of the trainer in real time during training.

[0004] To solve the above technical problem, the present invention adopts the following technical solution: A limb strength training loading and measuring device, comprising a frame, a torque sensor, an inclination sensor, a support mechanism for fixing a limb, and a loading mechanism for forming a movement resistance;

[0005] One end of the torque sensor is fixedly connected to the support mechanism, the other end of the torque sensor is fixedly connected to the loading mechanism, and the whole formed by the torque sensor fixedly connected to the loading mechanism and the support mechanism is rotatably installed on the frame to form a rotatable member, and the inclination sensor is arranged on the rotatable member.

[0006] Further, the input shaft of the torque sensor is fixedly connected to the support mechanism, and the input shaft of the torque sensor is rotatably installed on the frame, so as to realize that the whole formed by the torque sensor fixedly connected to the loading mechanism and the support mechanism is rotatably installed on the frame to form a rotatable member, and the inclination sensor is installed on the loading mechanism or the support mechanism or the torque sensor.

[0007] Further, the output shaft of the torque sensor is fixedly connected to the loading mechanism at an adjustable angle, and the structure is as follows: The loading mechanism is rotatably sleeved on the input shaft, a first pin hole is opened on the loading mechanism, and two or more second pin holes are opened on the output shaft of the torque sensor at intervals along its circumferential direction, and a spring pin can pass through the first pin hole and be inserted into any one of the second pin holes.

[0008] Further, one or more weights are detachably connected to the loading mechanism, and the loading force is increased or decreased by increasing or decreasing the number of weights on the loading mechanism.

[0009] Further, the loading mechanism uses a damper to provide a loading force. Both ends of the damper are hinged to the loading mechanism and the frame respectively, and the resistance of the damper is adjustable.

[0010] Further, the frame is a seat.

[0011] Further, a limb binding structure is provided on the support mechanism.

[0012] Further, the inclination sensor is a single-axis inclination sensor or a multi-axis inclination sensor. The single-axis inclination sensor is a single-axis acceleration sensor or a single-axis gyroscope or a combination of a single-axis gyroscope and an acceleration sensor.

[0013] Further, a display is further included, which is used to display the detection data of the torque sensor and the inclination sensor in real time.

[0014] The beneficial effects of the present invention are as follows:

[0015] The structure of the present invention is simple, safe and reliable. By pairing the torque sensor and the inclination sensor, the training situation of the trainer can be measured conveniently and quickly in real time, including the torque received, the range of motion, the work done, etc. These data provide a basis for the evaluation of the training effect, increase the interactive effect of the training, facilitate the medical staff to adjust and record the training of the trainer in time, and improve the training effect. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of an embodiment of the present invention for lower limb training with a damper providing a loading force.

[0017] Figure 2 is a schematic structural diagram of an embodiment of the present invention for lower limb training with a weight providing a loading force.

[0018] Figure 3 is a schematic structural diagram of the output shaft of the torque sensor in an embodiment of the present invention.

[0019] Figure 4 is a schematic installation structural diagram of the frame, the torque sensor, the support mechanism and the loading mechanism in an embodiment of the present invention.

[0020] Figure 5 is a schematic structural diagram of an embodiment of the present invention for upper limb training.

[0021] The labels of each component in the drawings are: 1 frame, 2 torque sensor, 21 second pin hole, 3 inclination sensor, 4 support mechanism, 41 support block, 42 strap, 5 loading mechanism, 51 first pin hole, 52 weight, 53 damper, 6 input shaft, 7 output shaft, 8 spring pin. Detailed Embodiments

[0022] The present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0023] See Figure 1 .

[0024] The limb strength training loading and measuring device of the present invention includes a frame 1, a torque sensor 2, an inclination sensor 3, a support mechanism 4 for fixing a limb, and a loading mechanism 5 for forming a movement resistance;

[0025] One end of the torque sensor 2 is fixedly connected to the support mechanism 4, the other end of the torque sensor 2 is fixedly connected to the loading mechanism 5, and the whole formed by the fixed connection of the torque sensor 2 with the loading mechanism 5 and the support mechanism 4 is rotatably installed on the frame 1 to form a rotatable component, and the inclination sensor 3 is arranged on the rotatable component.

[0026] Here, the "one end" and the "other end" are the input shaft and the output shaft of the torque sensor, or the output shaft and the input shaft of the torque sensor, and the present invention does not make a limitation.

[0027] During use, the limb is tied to the support mechanism, the loading force of the loading mechanism is adjusted, and then the movement starts. During the movement, the torque sensor can measure the torque received by the support mechanism, and the inclination sensor can measure the movement angle of the support mechanism, so as to calculate the work done, which is very convenient and fast.

[0028] Preferably, the frame 1 is a seat. With such a design, the trainer can sit on the seat for training. The present invention can be used for lower limb training, Figure 1 and Figure 2 This is the case illustrated. Each component is arranged at the lower part of the seat, and it can also be used for upper limb training, Figure 5 This is the case illustrated. Each component is arranged at the upper part of the seat.

[0029] In one embodiment, see Figure 2 , one or more weights 52 are detachably connected to the loading mechanism 5, and the loading mechanism 5 increases or decreases the loading force by increasing or decreasing the number of weights 52. With such a design, the cost is low, and the function of adjustable loading force can be realized.

[0030] In one embodiment, see Figure 1 , the loading mechanism 5 uses a damper 53 to provide the loading force, both ends of the damper 53 are respectively hinged to the loading mechanism 5 and the frame 1, and the resistance of the damper 53 is adjustable. With such a design, it is more convenient to adjust the loading force than the weight, saving time and effort, and having better practicability.

[0031] In one embodiment, referring to Figure 4 , the input shaft 6 of the torque sensor 2 is fixedly connected to the support mechanism 4. The input shaft 6 of the torque sensor 2 is rotatably mounted on the frame 1, so as to realize that the whole formed by the torque sensor 2 fixedly connected to the loading mechanism 5 and the support mechanism 4 is rotatably mounted on the frame 1 to form a rotatable component. The inclination sensor 3 is mounted on the loading mechanism 5 or the support mechanism 4 or the torque sensor 2. Such a design is simple and reasonable in structure and easy to manufacture and install.

[0032] In one embodiment, referring to Figure 3 and Figure 4 , the output shaft 7 of the torque sensor 2 is fixedly connected to the loading mechanism 5 in an angle-adjustable manner, and the structure is realized as follows: the loading mechanism 5 is rotatably sleeved on the input shaft 6. A first pin hole 51 is formed on the loading mechanism 5, and two or more second pin holes 21 are formed on the output shaft 7 of the torque sensor 2 and are circumferentially spaced apart. The spring pin 8 can pass through the first pin hole 51 and be inserted into any one of the second pin holes 21. Such a design can realize the adjustable fixed connection of the torque sensor and the loading device at different angles by rotating the loading mechanism to different positions and inserting the spring pin into the second pin holes at different positions, so that the angle between the arm during training and the elbow can be adjusted.

[0033] In one embodiment, a limb binding structure is provided on the support mechanism 4, which is used to facilitate binding of the limb. Preferably, the limb binding structure includes a support block 41 and a strap 42 connected to the support block 41. Such a design is simple in structure, easy to manufacture and convenient to use.

[0034] In one embodiment, the inclination sensor 3 is a single-axis inclination sensor or a multi-axis inclination sensor, and the single-axis inclination sensor is a single-axis acceleration sensor or a single-axis gyroscope or a combination of a single-axis gyroscope and an acceleration sensor. The single-axis inclination sensor can only measure the angle change generated around one axis, and the multi-axis can measure the angle changes relative to multiple axes. Of course, the present invention is not limited to the above structures as long as the inclination can be measured.

[0035] In one embodiment, a display is further included, and the detection data of the torque sensor 2 and the inclination sensor 3 can be respectively transmitted in real time and displayed through the display. Such a design is convenient for intuitively obtaining data and has better practicability.

[0036] It should be understood that the examples and embodiments described herein are only for illustration and are not intended to limit the present invention. Those skilled in the art can make various modifications or changes according to it. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A limb strength training loading and measuring device, characterized in that: It includes a frame (1), a torque sensor (2), an inclination sensor (3), a support mechanism (4) for fixing a limb, and a loading mechanism (5) for forming a movement resistance; One end of the torque sensor (2) is fixedly connected to the support mechanism (4), the other end of the torque sensor (2) is fixedly connected to the loading mechanism (5), and the whole formed by the fixed connection of the torque sensor (2) with the loading mechanism (5) and the support mechanism (4) is rotatably installed on the frame (1) to form a rotatable component, and the inclination sensor (3) is arranged on this rotatable component; The input shaft (6) of the torque sensor (2) is fixedly connected to the support mechanism (4), and the input shaft (6) of the torque sensor (2) is rotatably installed on the frame (1), so as to realize that the whole formed by the fixed connection of the torque sensor (2) with the loading mechanism (5) and the support mechanism (4) is rotatably installed on the frame (1) to form a rotatable component, and the inclination sensor (3) is installed on the loading mechanism (5) or the support mechanism (4) or the torque sensor (2); The output shaft (7) of the torque sensor (2) is fixedly connected to the loading mechanism (5) with adjustable angle; the loading mechanism (5) is rotatably sleeved on the input shaft (6), a first pin hole (51) is opened on the loading mechanism (5), and two or more second pin holes (21) are opened on the output shaft (7) of the torque sensor (2) and are distributed at intervals along its circumferential direction, and a spring pin (8) can pass through the first pin hole (51) and be inserted into any one of the second pin holes (21); The loading mechanism (5) uses a damper (53) to provide a loading force, or one or more weights (52) are detachably connected to the loading mechanism (5), and the loading mechanism (5) increases or decreases the loading force by increasing or decreasing the number of weights (52).

2. The limb strength training loading measurement device according to claim 1, characterized in that: Both ends of the damper (53) are hinged to the loading mechanism (5) and the frame (1) respectively, and the resistance of the damper (53) is adjustable.

3. The limb strength training load measuring device according to claim 1 or 2, characterized in that: The frame (1) is a seat.

4. The limb strength training loading measurement device according to claim 1 or 2, characterized in that: The support mechanism (4) is provided with a limb binding structure.

5. The limb strength training loading and measuring device according to claim 4, characterized in that: The limb binding structure includes a support block (41) and a strap (42) connected to the support block (41).

6. The limb strength training load measurement device according to claim 1 or 2, characterized in that: The inclination sensor (3) is a single-axis inclination sensor or a multi-axis inclination sensor, and the single-axis inclination sensor is a single-axis acceleration sensor or a single-axis gyroscope or a combination of a single-axis gyroscope and an acceleration sensor.

7. The limb strength training load measurement device according to claim 1 or 2, characterized in that: It further includes a display for real-time displaying the detection data of the torque sensor (2) and the inclination sensor (3).

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