Balance training device

Abstract

The utility model discloses a balance training device which comprises a motor assembly, a balance training assembly, a ball head rotating mechanism and a bottom frame. A bottom frame groove and a connecting groove are formed in the bottom frame, the bottom frame groove is located below the connecting groove, the ball head rotating mechanism is arranged in the connecting groove, and the balance training assembly is contained in the bottom frame groove; the lower end of the motor assembly is fixedly connected with the balance training assembly and penetrates through the balance training assembly to be fixedly connected with the ball head rotating mechanism, and the motor assembly is arranged on the bottom frame in an inverted mode. According to the balance training device, the design that the motor is inverted is adopted, the motor is arranged on the bottom frame, and the occupied space of the bottom frame is reduced, so that the overall height of the training bottom frame is reduced, and a patient with mobility difficulty can go up and down conveniently; the device can be used for static balance training and dynamic balance training, after training is started, the static mode and the dynamic mode can be flexibly switched according to the condition of a patient, and the rehabilitation training requirements of different stages are met.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a balance training device. Background Technology

[0002] Balance ability refers to the ability to maintain body posture and control the body's center of gravity. Balance is the foundation of all human static and dynamic activities. Almost all human movement is performed while maintaining balance. Currently, balance training devices on the market are mainly divided into two types: static balance training and dynamic balance training. Static balance training devices typically use pressure sensors to measure a patient's balance ability in a static state, but the testing accuracy is limited and it is difficult to train patients with balance deficiencies. Dynamic balance training devices generate disturbances in the testing platform, assessing the patient's ability to control the amplitude of these disturbances to test dynamic balance ability. The testing accuracy is higher and rehabilitation training can be implemented, but testing presents certain difficulties for patients with poor balance.

[0003] Existing dynamic balance training devices are divided into two categories: passive adaptive and active adaptive. Active adaptive balance training devices rely on the trainee's own center of gravity adjustment. Because they depend on the trainee's subjective judgment and body control, the tilt direction and degree of the pedals may deviate from the training plan. This uncertainty can lead to unstable training effects and make it difficult to accurately assess training progress and results. Passive adaptive balance training devices usually have built-in drive components, enabling precise control. Currently, most of these devices place the drive components under the training frame, such as the balance training component and balance rehabilitation training device disclosed in CN112774105A. This device has a positioning mechanism under the support platform, which includes a ring-shaped airbag and at least one set of drive components. This structural design results in a device with a relatively high overall frame and heavy weight due to the need to house the drive components, making it inconvenient for patients, especially elderly patients, to get on and off the platform. Utility Model Content

[0004] In order to at least solve one of the problems of the existing technology, this utility model provides a balance training device in which the motor is set on the base frame, which does not occupy the base frame space, thereby reducing the overall height of the training base frame and making it easier for patients with mobility difficulties to get up and down.

[0005] To achieve the purpose of this utility model, this utility model provides a balance training device, including a motor assembly, a balance training assembly, a ball head rotation mechanism, and a base frame;

[0006] The base frame is provided with a base frame groove and a connecting groove. The base frame groove is located below the connecting groove. The ball head rotation mechanism is disposed in the connecting groove. The balance training component is accommodated in the base frame groove.

[0007] The lower end of the motor assembly is fixedly connected to the balance training assembly, and passes through the balance training assembly to be fixedly connected to the ball head rotation mechanism. The motor assembly is inverted and mounted on the base frame.

[0008] During operation, the electric motor assembly drives the balance training component to rise relative to the base frame. The ball joint rotation mechanism causes the balance training component to tilt, allowing the patient to stand on the balance training component for balance training.

[0009] Preferably, at least three sets of motor assemblies are provided to ensure necessary safety support, with each set of motor assemblies corresponding to a ball-head rotation mechanism. This arrangement allows the balance training component to provide multi-directional tilting motion.

[0010] Preferably, the motor assembly includes a first motor assembly, a second motor assembly, and a third motor assembly, each motor assembly including a motor and a lifting screw, and the first, second, and third motor assemblies are symmetrically arranged with respect to the center of the base frame.

[0011] Preferably, the motor assembly includes a motor and a lifting screw driven by the motor. The lifting screw is fixedly connected to the balance training assembly and passes through the balance training assembly to be fixedly connected to the ball head rotation mechanism.

[0012] Preferably, the ball joint rotation mechanism includes a lower fixed seat, an upper fixed seat, a ball joint and a spring located in the connecting groove. The lower fixed seat and the upper fixed seat are arranged opposite to each other, the spring is arranged between the lower fixed seat and the upper fixed seat, and the ball joint is arranged on the upper fixed seat.

[0013] The motor assembly includes a motor and a lifting screw. One end of the lifting screw is connected to the motor, and the other end is fixedly connected to the balance training assembly and passes through the balance training assembly to be fixedly connected to the upper fixed seat of the ball head rotation mechanism.

[0014] Preferably, a protective sleeve is provided within the connecting groove and around the ball joint.

[0015] Preferably, the balance training component includes a support member, an upper frame, a pressure sensor, and a base plate. The support member and the base plate are arranged opposite each other on the upper frame. The base plate is connected to the motor assembly, and the pressure sensor is arranged on the upper frame.

[0016] Preferably, the pressure sensor is fixed to the lower part of the upper frame with screws, the upper layer of the upper frame is connected to the support member, the lower layer is connected to the base plate, and the base plate is fixedly connected to the lower end of the lifting screw of the motor assembly.

[0017] Preferably, the balance training component further includes a pressure plate disposed between the support and the upper frame.

[0018] Preferably, the pressure plate is a pressure sensor array, fixed on the lower layer of the upper frame, which can accurately measure the pressure at different parts of the patient's foot.

[0019] Preferably, the base frame is also equipped with handrails, allowing patients to use the handrails for support during training.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] (1) The balance training device provided by this utility model adopts the design of motor inversion, and the motor is set on the base frame, which reduces the space occupied by the base frame, thereby reducing the overall height of the training base frame and making it convenient for patients with mobility difficulties to get up and down.

[0022] (2) This utility model can be used for both static balance training and dynamic balance training. After training begins, static and dynamic modes can be flexibly switched according to the patient's condition to meet the rehabilitation training needs at different stages. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the balance training device provided in an embodiment of the present invention.

[0024] Figure 2 This is a cross-sectional view of the internal structure of the motor assembly and ball joint rotation mechanism provided in an embodiment of the present invention.

[0025] Figure 3 This is a schematic diagram illustrating the specific structural composition of the balance information acquisition component provided in this embodiment of the utility model.

[0026] In the diagram: 1-Motor assembly, 11-Motor, 12-Lifting screw; 2-Balance training assembly, 21-Support component, 22-Pressure plate, 23-Upper frame, 24-Pressure sensor, 25-Base plate; 3-Ball joint rotation mechanism, 31-Lower fixed seat, 32-Spring, 33-Upper fixed seat, 34-Ball joint, 35-Protective sleeve; 4-Base frame, 5-Handrail. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings and examples. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] Example 1

[0029] Please refer to Figure 1 The present invention provides a balance training device, comprising a motor assembly 1, a balance training assembly 2, a ball joint rotation mechanism 3, and a base frame 4.

[0030] The lower end of the motor assembly 1 is fixedly connected to the balance training assembly 2, and passes through the balance training assembly 2 to be fixedly connected to the ball joint rotating mechanism 3.

[0031] The base frame 4 has a base frame groove in the middle and a connecting groove corresponding to the ball joint rotation mechanism 3. The balance training component 2 is accommodated in the base frame groove, and the ball joint rotation mechanism 3 is disposed in the connecting groove.

[0032] During operation, the motor assembly 1 can drive the balance training assembly 2 to rise relative to the base frame 4. When the balance training assembly 2 is parallel and stationary relative to the ground, the patient stands on the balance training assembly 2 to perform static balance training. When the balance training assembly 2 begins to tilt under the action of the ball joint rotation mechanism 3, the patient stands on the balance training assembly 2 to perform dynamic balance training.

[0033] The balance training device provided in this embodiment adopts an inverted motor design, that is, the motor is mounted on the base frame 4. This design does not occupy the base frame space, thereby reducing the overall height of the training base frame and making it easier for patients with mobility difficulties to get on and off.

[0034] Example 2

[0035] Please refer to Figure 1 The balance training device includes a motor assembly 1, a balance training assembly 2, a ball joint rotation mechanism 3, and a base frame 4; the motor assembly 1 includes a motor 11 and a lifting screw 12; the ball joint rotation mechanism 3 includes a lower fixed seat 31, an upper fixed seat 33, a ball joint 34, and a spring 32.

[0036] The upper end of the lifting screw 12 of the motor assembly 1 is connected to the output end of the motor 11, and the lower end is fixedly connected to the balance training assembly 2, and passes through the balance training assembly 2 to be fixedly connected to the upper fixed seat 33 of the ball joint rotating mechanism 3.

[0037] The lower fixed seat 31 and the upper fixed seat 33 are arranged opposite to each other. The ball joint 34 of the ball joint rotation mechanism 3 is installed in the upper fixed seat 33. The upper fixed seat 33 is connected to the lower fixed seat 31 through the spring 32.

[0038] The base frame 4 includes a base frame groove and a connecting groove corresponding to the ball joint rotation mechanism 3. The balance training component 2 is housed in the base frame groove, and the lower fixing seat 31 of the ball joint rotation mechanism 3 is disposed in the connecting groove.

[0039] In this embodiment, a protective sleeve 35 is provided inside the connecting groove and around the ball joint 34. This prevents the ball joint rotating mechanism 3 from being directly exposed and provides a degree of freedom of horizontal movement when the ball joint rotating mechanism 3 and the motor assembly 1 are offset as a whole, preventing the ball joint rotating mechanism 3 from directly colliding with the inner wall of the connecting groove. Preferably, the protective sleeve 35 is a soft rubber sleeve.

[0040] During operation, the motor 11 drives the lifting screw 12 to rise relative to the base frame 4. The upper fixed seat 33 of the ball joint rotating mechanism 3 can tilt relative to the lower fixed seat 31 under the action of the spring 32, thereby driving the balance training component 2 to tilt. The patient stands on the balance training component 2 to perform balance training.

[0041] In this embodiment, since the upper fixed seat 33 tilts under the action of the spring 32, the spring 32 can act as a buffer. When the tilt angle of the balance training component 2 is too large or the patient's movements are too violent, the spring 32 can absorb some energy, slow down the tilting speed, and prevent the balance training component 2 from tilting suddenly and drastically, thus improving the safety of training to a certain extent.

[0042] In this embodiment, spring 32 is a compression spring with a wire diameter of 3mm and a free length of 50mm.

[0043] Example 3

[0044] Please refer to Figure 1The balance training device includes a motor assembly 1, a balance training assembly 2, a ball joint rotation mechanism 3, and a base frame 4. The motor assembly 1 includes a first motor assembly, a second motor assembly, and a third motor assembly. Each of the first, second, and third motor assemblies includes a motor 11 and a lifting screw 12. The first, second, and third motor assemblies are arranged symmetrically with respect to the base frame 4.

[0045] The ball joint rotation mechanism 3 includes a lower fixed seat 31, an upper fixed seat 33, a ball joint 34, and a spring 32;

[0046] The upper end of the lifting screw 12 of the motor assembly 1 is connected to the output end of the motor 11, and the lower end is fixedly connected to the balance training assembly 2, and passes through the balance training assembly 2 to be fixedly connected to the upper fixed seat 33 of the ball joint rotating mechanism 3.

[0047] The ball joint 34 of the ball joint rotation mechanism 3 is installed inside the upper fixed seat 33 and protected by the protective sleeve 35. The upper fixed seat 33 is connected to the lower fixed seat 31 through the spring 32.

[0048] The base frame 4 is provided with a base frame groove and a connecting groove corresponding to the ball joint rotation mechanism 3. The balance training component 2 is accommodated in the base frame groove, and the lower fixing seat 31 of the ball joint rotation mechanism 3 is provided in the connecting groove.

[0049] During operation, the motor 11 drives the lifting screw 12 to rise relative to the base frame 4. The upper fixed seat 33 of the ball joint rotating mechanism 3 can tilt relative to the lower fixed seat 31 under the action of the spring 32, thereby driving the balance training component 2 to tilt. The patient stands on the balance training component 2 to perform balance training.

[0050] In this embodiment, the three motor assemblies and the corresponding ball joint rotating mechanism 3 set on the base frame 4 can ensure that the balance training component 2 is provided with necessary support. Under the premise of driving the balance training component 2 to provide multi-directional tilting motion, the structure is simplified as much as possible and resources are saved. The number of motor assemblies can be increased as needed.

[0051] Example 4

[0052] Please refer to Figure 1The balance training device includes a motor assembly 1, a balance training assembly 2, a ball joint rotation mechanism 3, and a base frame 4. The motor assembly 1 includes a first motor assembly, a second motor assembly, and a third motor assembly. Each of the first motor assembly, the second motor assembly, and the third motor assembly includes a motor 11 and a lifting screw 12. The first, second, and third motor assemblies are symmetrically arranged with respect to the base frame 4.

[0053] The ball joint rotation mechanism 3 includes a lower fixed seat 31, an upper fixed seat 33, a ball joint 34, and a spring 32.

[0054] The upper end of the lifting screw 12 of the motor assembly 1 is connected to the motor 11, the lower end is fixedly connected to the base plate 25, and passes through the base plate 25 to be fixedly connected to the upper fixed seat 33 of the ball joint rotating mechanism 3.

[0055] The ball joint 34 of the ball joint rotation mechanism 3 is installed inside the upper fixed seat 33 and is protected by a protective sleeve 35. The upper fixed seat 33 is connected to the lower fixed seat 31 through the spring 32.

[0056] The base frame 4 is provided with a base frame groove and a connecting groove corresponding to the ball joint rotating mechanism 3. The connecting groove is located above the base frame groove. The balance training component 2 is set on the upper surface of the base frame 4 through the base frame groove. The lower fixing seat 31 of the ball joint rotating mechanism 3 is located in the connecting groove.

[0057] Please see Figure 3 The balance training component 2 includes a support 21, a pressure plate 22, an upper frame 23, a pressure sensor 24, and a base plate 25. The pressure plate 22 and the pressure sensor 24 are respectively fixed to the upper and lower surfaces of the upper frame 23 with screws. The upper layer of the upper frame 23 is connected to the support 21, and the lower layer is connected to the base plate 25. The base plate 25 is detachably fixed to the groove of the base frame.

[0058] In this embodiment, the pressure plate 22 employs a pressure sensor array, which can monitor the pressure distribution between the sole of the foot and the support surface in real time during static balance training. Preferably, the pressure sensor array has a measurement range of 2500 sensing points, a durability of over 1 million cycles, and a response time of <10µs.

[0059] In this embodiment, the upper frame 23 has a square cross-section, and pressure sensors 24 are provided at the four corners of the bottom surface of the upper frame 23. During dynamic balancing, the pressure sensors 24 are used to accurately monitor the pressure distribution between the sole of the foot and the support surface.

[0060] In this embodiment, the support member 21 is a soft rubber component. In other embodiments, the support member 21 can be made of a material with a low elastic modulus (such as low-density EVA foam) or a material with a high elastic modulus (such as natural rubber). The material of the support member will affect the selection of the pressure sensor array. If the support member has a low elastic modulus and is easily deformed, it is recommended to select a pressure sensor array with higher sensitivity.

[0061] In this embodiment, the base frame 4 is also provided with a handrail 5. When the patient stands on the support 21 for balance training, the handrail 5 can be used to improve the safety of the training.

[0062] In this embodiment, the handrail 5 is made of steel pipe with baked paint and has a height of 850mm.

[0063] In this embodiment, the motor 11 can be either a servo motor or a stepper motor. A stepper motor is a type of motor that converts electrical pulse signals into angular or linear displacement. Each input pulse signal causes the motor to rotate by a fixed angle. By precisely controlling the number and frequency of pulses, high-precision position control can be achieved. A servo motor, through a closed-loop control system and combined with position information fed back from the encoder, can adjust the motor's position in real time to achieve even higher position control accuracy. Furthermore, by setting specific balance training goals and combining the position information of the motor 11, it is understandable to those skilled in the art to precisely control the patient's balance training at specific angles and directions, and will not be elaborated upon here.

[0064] In this embodiment, the maximum tilt angle that the balance training component 2 can achieve is 12 degrees.

[0065] The balance training device provided in the foregoing embodiments of this utility model can be used for both static and dynamic balance training. When the first, second, and third motor assemblies drive the lifting screw 11 to maintain a level height, the balance training component 2 can form a stable horizontal platform. The patient can stand on the support 21 of the balance training component to begin static balance training. The pressure sensor array under the support 21 can collect the patient's plantar pressure information, accurately measure the pressure at different parts of the plantar surface, and form a pressure distribution image, which intuitively displays the position and distribution changes of the body's center of gravity. This helps trainees and coaches better understand the trainee's balance status. This technology is well known to those skilled in the art and will not be described in detail here.

[0066] When a patient needs to perform static balance training, the first, second, and third motor assemblies can drive the lifting screw 11 to rise simultaneously to the same height, causing the balance training component 2 to rise relative to the base frame groove to form a stable horizontal platform. Alternatively, the lifting screw can be left undriven, allowing the balance training component 2 to remain contained within the base frame groove, forming a stable horizontal platform. It should be noted that because the three sets of springs in the ball joint rotation mechanism 3 provide the balance training component 2 with a certain degree of freedom of movement and offset, the balance training component 2 does not achieve an absolutely static state.

[0067] When the first, second, and third motor assemblies drive the corresponding lifting screws to rise to different heights, the springs 32 in the corresponding ball joint rotating mechanisms 3 will deform to different degrees. Under the action of the springs 32, the upper fixed seat 33 will tilt relative to the lower fixed seat 31, thereby causing the balance training assembly 2 to tilt. The patient stands on the balance training assembly for dynamic balance training. It should be noted that when the patient is performing dynamic balance training, the body is in a tilted standing posture, and the impact of gravity on different parts of the sole varies greatly. The plantar pressure data obtained by the pressure sensor array under the support 21 may not be very accurate. Therefore, when the patient is in a tilted standing posture, pressure sensors 24 are set at the four corners of the bottom surface of the upper frame 23 to collect the vertical pressure on each corner. By measuring the pressure at the four corners of the upper frame 23, the position of the center of gravity can be calculated based on a mechanical model. In addition, in order to more accurately assess the patient's center of gravity changes, the plantar pressure sensor array and the pressure sensor data at the four corners of the upper frame 23 can be combined, and factors such as the patient's body characteristics can be considered to establish a comprehensive biomechanical model for analysis.

[0068] During training, the pressure data and angle information (calculated by the motor encoder) of the patient collected by the pressure plate and pressure sensor can be transmitted to the host computer via wired or wireless means. After the signal is processed and analyzed, it can be displayed on the screen. The patient can interact with the system through games / video feedback. The technology of human-computer interaction is relatively mature in the existing technology and will not be described in detail here.

[0069] The main innovative points of this utility model have been described above in conjunction with the embodiments and accompanying drawings. Many other details or minor aspects of this utility model have not been fully described. Those skilled in the art, after receiving the teachings of this invention, can obtain these details based on general knowledge or conventional methods in the field.

Claims

1. A balance training device, characterized in that, Includes motor assembly, balance training assembly, ball head rotation mechanism, and base frame; The base frame is provided with a base frame groove and a connecting groove. The base frame groove is located below the connecting groove. The ball head rotation mechanism is disposed in the connecting groove. The balance training component is accommodated in the base frame groove. The lower end of the motor assembly is fixedly connected to the balance training assembly, and passes through the balance training assembly to be fixedly connected to the ball head rotation mechanism. The motor assembly is inverted and mounted on the base frame.

2. The balance training device according to claim 1, characterized in that, The motor assembly is provided in no fewer than three groups, and each group of motor assemblies is respectively set with a ball head rotation mechanism to drive the balance training component to provide multi-directional tilting motion.

3. The balance training device according to claim 2, characterized in that, All motor assemblies are arranged symmetrically with respect to the center of the base frame.

4. The balance training device according to claim 1, characterized in that, The motor assembly includes a motor and a lifting screw that is driven by the motor. The lifting screw is fixedly connected to the balance training assembly and passes through the balance training assembly to be fixedly connected to the ball head rotation mechanism.

5. A balance training device according to claim 1, characterized in that, The ball joint rotation mechanism includes a lower fixed seat, an upper fixed seat, a ball joint and a spring located in the connecting groove. The lower fixed seat and the upper fixed seat are arranged opposite to each other, the spring is arranged between the lower fixed seat and the upper fixed seat, and the ball joint is arranged on the upper fixed seat. The motor assembly includes a motor and a lifting screw. One end of the lifting screw is connected to the motor, and the other end is fixedly connected to the balance training assembly and passes through the balance training assembly to be fixedly connected to the upper fixed seat of the ball head rotation mechanism.

6. A balance training device according to claim 5, characterized in that, A protective sleeve is provided within the connecting groove and around the ball joint.

7. A balance training device according to claim 1, characterized in that, The balance training assembly includes a support, an upper frame, a pressure sensor, and a base plate. The support and the base plate are arranged opposite each other on the upper frame. The base plate is connected to the motor assembly, and the pressure sensor is arranged on the upper frame.

8. A balance training device according to claim 7, characterized in that, The balance training component also includes a pressure plate, which is disposed between the support and the upper frame.

9. A balance training device according to claim 8, characterized in that, The pressure plate is a pressure sensor array used to measure the pressure at different points on the sole of the patient's foot.

10. A balance training device according to any one of claims 1-9, characterized in that, Handrails are also provided on the base frame.

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