Inclined supporting type low-gravity motion simulation training platform

Abstract

The utility model relates to the field of low-gravity exercise training, in particular to an inclined supporting type low-gravity exercise simulation training platform which comprises a base, a supporting frame, a rotary driving mechanism, an exercise mechanism and a limb suspension mechanism. Wherein the first plate frame is used for supporting the back of a sporter; the movement mechanism is fixedly mounted on the plate frame II; the two sides of the supporting frame are rotationally connected with the base through rotating shafts, a rotation driving mechanism is hinged between the back side of the first plate frame and the base and used for driving the supporting frame to rotate, and the limb hanging mechanism is positioned through a third plate frame, connected with limbs of a sporter and used for hanging human body parts and giving constant pulling force. A certain angle is formed between a human body and a vertical gravity field by utilizing the inclined plane, gravity component force in the vertical direction of the inclined plane is counteracted, the human body obtains low gravity in the inclined plane direction, and different movement modes such as walking, running and strength exercise under the low gravity are simulated.

Description

TECHNICAL FIELD

[0001] The utility model relates to low gravity sports training field especially a tilt support type low gravity sports simulation training platform. BACKGROUND

[0002] Most sports equipment is designed based on the standard gravity environment of the earth, and cannot effectively reduce the gravity impact of the training personnel's body weight. This is a significant defect for athletes who need to simulate low gravity environment for training.

[0003] The existing sports equipment lacks the ability to accurately read and record sports parameters in a low gravity environment. This makes it impossible for training personnel to obtain accurate sports data in a low gravity state, thereby affecting the training effect and scientific research.

[0004] Many sports equipment (such as treadmills) limit the running angle of the training personnel in design and function, and cannot simulate large-angle (such as uphill and downhill) running states. This limits the training diversity and adaptability of the training personnel. INVENTION CONTENTS

[0005] In view of the above problems, the utility model provides a tilt support type low gravity sports simulation training platform and method. The support frame is rotated to the support surface of the human body by the rotating drive mechanism, the human body and the vertical gravity field form a certain angle by using the inclined surface, the gravity component in the vertical direction of the inclined surface is offset, the human body obtains low gravity in the inclined surface direction, different sports modes such as walking, running and strength training under simulated low gravity are realized, different longitudinal loadings can be applied, the exercise state under low gravity environment is simulated, synchronous collection, real-time display and storage of parameters such as restraint loading force, movement distance, movement speed, strength training load and frequency, human body displacement, joint angle change, foot force, heart rate and the like during human body movement can be realized.

[0006] To achieve the above purpose, the utility model is realized according to the following technical schemes:

[0007] This utility model provides an inclined support type low gravity motion simulation training platform, including a base, a support frame, a rotary drive mechanism, a motion mechanism, and a limb suspension mechanism. The base is fixedly installed. The support frame is U-shaped and includes three plates connected vertically in sequence: a first plate frame, a second plate frame, and a third plate frame. The first plate frame supports the back of the exerciser. The motion mechanism is fixedly installed on the second plate frame. The two sides of the support frame are rotatably connected to the base via pivots. The rotary drive mechanism is hinged between the back of the first plate frame and the base, and is used to drive the support frame to rotate. The limb suspension mechanism is positioned through the third plate frame and connected to the exerciser's limbs, used to suspend the body parts and apply a constant tension. When the motion simulation platform is working, the rotary drive mechanism drives the support frame to rotate until the angle between the support surface of the motion mechanism on the body and the vertical direction is α. The constant tension T applied by the limb suspension mechanism to the body parts during the exercise is calculated by the following formula:

[0008] T = G·cosα

[0009] In the formula: G is the gravitational force experienced by the test personnel in the Earth environment.

[0010] In the above technical solution, slide rails are provided on both sides of the first plate frame, and multiple sets of support belts are slidably connected to the slide rails through sliders.

[0011] In the above technical solution, the rotary drive mechanism is a hydraulic cylinder, a pneumatic cylinder, or a servo electric cylinder.

[0012] In the above technical solution, the limb suspension mechanism includes several sets of sling assemblies. Each sling assembly includes a servo motor, a pull rope, and several sets of guide pulleys. The servo motor is fixedly installed on the side of the second plate frame that is offset from the motion mechanism. The outer side of the output shaft of the servo motor is connected to a wheel, and a pull rope is wound on the wheel. The second or third plate frame is provided with several sets of guide pulleys. The pull rope is guided by several sets of guide pulleys in sequence and can be connected to the human body parts.

[0013] In the above technical solution, the guide pulleys include a group of guide pulleys set on the side of the plate frame two that is offset from the motion mechanism, two groups of guide pulleys set at the top of the plate frame three, and a group of guide pulleys set at the bottom of the plate frame three. The plate frame three has through holes. The pull rope is guided by the guide pulley at the top of the plate frame three, passes through the through holes, and is guided and connected to the guide pulley at the bottom of the plate frame three.

[0014] In the above technical solution, the part of the pull rope closest to the human body is connected to a force sensor.

[0015] The above technical solution also includes a data acquisition mechanism for synchronously collecting data on foot force, movement distance, joint angle changes, device tilt angle, strength training load, and heart rate during human movement.

[0016] The above technical solution also includes a display control unit, which is used to collect, display, analyze and store the corresponding signal data.

[0017] In the above technical solution, the angle α between the support surface of the motion mechanism on the human body and the vertical direction is 0 to 35°.

[0018] In another aspect, this utility model also provides a tilt-support type low-gravity motion simulation training method, which is implemented based on any of the above-mentioned tilt-support type low-gravity motion simulation training platforms, and includes the following process:

[0019] S1. The athlete's feet are supported on the support surface of the exercise mechanism, and their back is supported on the frame; connect to the limb suspension mechanism; select the exercise mode;

[0020] S2. The rotary drive mechanism drives the support frame to rotate until the angle between the support surface of the motion mechanism on the human body and the vertical direction is α. During the motion, the constant tension T exerted by the limb suspension mechanism on the human body is calculated by the following formula:

[0021] T = G·cosα

[0022] In the formula: G is the gravitational force exerted on the test personnel in the Earth's environment;

[0023] S3. During exercise training, the data acquisition mechanism simultaneously collects data on foot force, movement distance, joint angle changes, device tilt angle, strength training load, and heart rate parameters. The display and control unit collects, displays, analyzes, and stores the data.

[0024] Compared with the prior art, this utility model has the following advantages:

[0025] This invention is designed for training motor skills such as walking and running in a simulated low-gravity environment. By rotating the support surface of the movement mechanism on the human body to an inclined position to simulate a low-gravity environment, and by applying different longitudinal forces through the limb suspension mechanism, it can simulate the exercise state in a low-gravity environment. It can also simulate running at large angles (such as uphill and downhill), which enhances the training diversity and adaptability of trainees. It can also synchronously collect, display and store parameters such as restraint loading force, movement distance, movement speed, strength training load and number of repetitions, joint angle changes, foot force, and heart rate during human movement, providing a solution for a sports simulation training platform in a low-gravity environment. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the inclined support type low gravity motion simulation training platform of this utility model;

[0028] Figure 2 This is a structural schematic diagram of the tilt-supported low-gravity motion simulation training platform of this utility model from another perspective.

[0029] Figure 3 This is a structural schematic diagram of plate frame one;

[0030] Figure 4 This is a schematic diagram of the limb suspension mechanism.

[0031] Figure 5 A structural schematic diagram of a limb suspension mechanism from another perspective;

[0032] Figure 6 This is a schematic diagram illustrating the principle of low-gravity environment simulation.

[0033] Figure 7 This is a schematic diagram illustrating the principle of the tilt-supported low-gravity motion simulation training platform of this utility model in simulating a low-gravity environment.

[0034] Reference numerals in the attached drawings: 1-base; 2-support frame; 21-plate frame one; 211-slide rail; 212-support belt; 213-slider; 22-plate frame two; 23-plate frame three; 24-rotating shaft; 3-rotation drive mechanism; 4-motion mechanism; 5-sling assembly; 51-servo motor; 52-pull rope; 53-guide pulley; 54-force sensor; 6-display control unit. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0036] This utility model embodiment proposes an inclined support type low gravity motion simulation training platform, such as... Figure 1 and Figure 2As shown, the system includes a base 1, a support frame 2, a rotary drive mechanism 3, a motion mechanism 4, and a limb suspension mechanism. The base 1 is fixedly installed. The support frame 2 is U-shaped and includes three vertically connected plates: a first plate 21, a second plate 22, and a third plate 23. The first plate 21 supports the back of the user. The motion mechanism 4 is fixedly installed on the second plate 22. The two sides of the support frame 2 are rotatably connected to the base 1 via pivots 24. The rotary drive mechanism 3 is hinged between the back of the first plate 21 and the base 1. The rotary drive mechanism drives the support frame 2 to rotate. The limb suspension mechanism is positioned via the third plate 23 and connected to the user's limbs. It suspends the body parts and provides a constant tension. When the motion simulation platform is working, the rotary drive mechanism 3 drives the support frame 2 to rotate until the angle between the support surface of the motion mechanism 4 and the vertical direction is α. The constant tension T provided by the limb suspension mechanism to the body parts during the motion is calculated using the following formula:

[0037] T = G·cosα

[0038] In the formula: G is the gravitational force experienced by the test personnel in the Earth environment.

[0039] Low-gravity motion simulation training platforms simulate different gravity environments by using suspension cables to provide a constant tension in the vertical direction of the body. For example... Figure 6 As shown, the gravity experienced by the test personnel in the Earth environment is G, and the gravity experienced by the test personnel in the ideal low gravity environment is G'. If zero gravity is simulated, the tension of the control cable is T = G, G' = 0; if a gravity environment of 1 / 6g is to be simulated, the compensation force provided by the cable is T = 5 / 6G, G' = 1 / 6G.

[0040] To meet the needs of testers, such as running, walking, and strength training, Figure 7 As shown, the low-gravity motion simulation training platform of this utility model uses a rotary drive mechanism 3 to drive the support frame 2 to rotate until the angle between the support surface of the motion mechanism 4 and the vertical direction is α. The exerciser is suspended by the limb suspension mechanism and stands on the inclined plane. At this time, the component of gravity G' perpendicular to the inclined plane is its own weight Gsinα. Then, the constant tension T exerted by the limb suspension mechanism on the human body during the exercise is calculated by the following formula:

[0041] T = G·cosα

[0042] In the formula: G represents the gravitational force experienced by the test personnel in an Earth-like environment; thus achieving the effect of simulating a low-gravity environment. Test personnel can perform various forms of exercise such as running, walking, and strength training on this low-gravity platform.

[0043] This invention is designed for training motor skills such as walking and running in a simulated low-gravity environment. By rotating the support surface of the movement mechanism 4 to an inclined position to simulate a low-gravity environment, and by applying different longitudinal forces through the limb suspension mechanism, it can simulate the exercise state in a low-gravity environment. It can also simulate running at large angles (such as uphill and downhill), which enhances the training diversity and adaptability of trainees. It can also synchronously collect, display and store parameters such as restraint loading force, movement distance, movement speed, strength training load and number of repetitions, joint angle changes, foot force, and heart rate during human movement, providing a solution for a sports simulation training platform in a low-gravity environment.

[0044] Base 1 is the foundation of the overall platform, providing support for the overall platform and the movement during training; in actual implementation, a steel structure frame can be used to ensure the dynamic stiffness and strength requirements during training.

[0045] like Figure 3 As shown, slide rails 211 are provided on both sides of the frame 21, and multiple sets of support belts 212 are slidably connected to the slide rails 211 via sliders 213; the support belts 212 can be adjusted to an appropriate position along the slide rails 211 to suit the height and body shape of different athletes.

[0046] The support strap 212 is positioned over the head, back, and thigh areas of the trainee. Preferably, the support strap 212 is constructed using a combination of rigid and flexible materials, employing a design concept that balances rigidity and flexibility. The rigid support material ensures stability, while the flexible material provides cushioning and gives the trainee a degree of freedom of movement, greatly improving the comfort and safety of the training. For example, the middle of the support strap 212 uses nylon material for primary support, while the flexible materials on both sides of the nylon material are a combination of elastic rope and TPU material. Utilizing the characteristic that elastic resistance changes with elongation, the elastic rope undergoes elastic deformation under different body support conditions, making the support strap more conform to the human body and providing better comfort. The TPU material is soft, durable, has good resilience, good toughness, and is not easily broken.

[0047] Preferably, according to the needs of sports training, the structure of the plate frame 21 is designed to be detachable and extendable in length. A magnetic scale is installed on one side of the slide rail 211, and a reading head is installed on the slider 213, which can provide real-time feedback on the movement position of the support belt 212.

[0048] The rotary drive mechanism 3 is a hydraulic cylinder, pneumatic cylinder, or servo electric cylinder. This utility model's motion simulation training platform requires high-precision adjustment and control of the tilt angle. However, the human support section is a long, narrow mechanism. Without a test subject, the center of gravity of the rotating part is outside the axis of rotation. With a test subject, the precision requirements for the tilt mechanism are very high due to individual differences, making angle adjustment and maintenance difficult. This embodiment uses a servo electric cylinder to support the frame 21. The servo electric cylinder's thrust point is on the other side of the frame's center of gravity, creating a balance-like effect to maintain equilibrium. The servo system ensures precise adjustment. Specifically, the angle α between the motion mechanism 4's support surface for the human body and the vertical direction is 0–35°. The servo electric cylinder consists of a servo motor and a support arm mechanism. When the servo electric cylinder is working, the servo motor drives the gear mechanism to extend the support arm out of the cylinder, driving the frame 21 to tilt. The servo motor has a coaxial encoder. The encoder measures and calculates the length of the extended support arm, and then, based on the geometric dimensions of the frame 21, calculates the tilt angle of the frame 21. The servo motor's angle adjustment fineness is 1°, with an accuracy of ±0.2°.

[0049] The exercise mechanism 4 mainly uses a treadmill. The frame 22 has mounting holes, and other training equipment can be installed after the treadmill is disassembled.

[0050] like Figure 4 and Figure 5 As shown, the limb suspension mechanism includes several sets of suspension cable assemblies 5. In this embodiment, six sets of suspension cable assemblies 5 are installed in the central area of ​​the overall frame 21 to ensure uniform force distribution when lifting the limbs, providing a constant pulling force to the exerciser. The suspension cable assembly 5 includes a servo motor 51, a pull rope 52, and several sets of guide pulleys 53. The servo motor 51 is fixedly installed on the side of the frame 22 away from the motion mechanism 4. The output shaft of the servo motor 51 is connected to a wheel, and the pull rope 52 is wound on the wheel. The frame 22 or the frame 3 is provided with several sets of guide pulleys 53. The pull rope 52 is guided by the several sets of guide pulleys 53 and can be connected to the body parts. The six pull ropes 52 are respectively used for the lower leg and thigh of the exerciser. The system includes three load-bearing traction ropes, one on each side of the upper shoulder and other areas. The pull ropes 52 near the servo motor 51 and the human body are made of rigid ropes, such as steel wire or nylon ropes, ensuring efficient and stable torque transmission. An elastic rope is used between the rigid ropes at both ends, ensuring not only the necessary range of motion for the tester but also a constant pulling force, thus improving the accuracy and safety of the test. By changing the length and type of elastic rope, the system's stiffness can be easily altered to meet the requirements of low-gravity simulation experiments with different masses. Preferably, the elastic rope is made of TPR elastic rope, which can withstand over 10,000 uses, has a Shore hardness of 30, a temperature range of -10 to 60 degrees Celsius, and excellent corrosion resistance.

[0051] The guide pulleys 53 include a set of guide pulleys 53 located on the side of the second plate frame 22 that is offset from the motion mechanism 4, two sets of guide pulleys 53 located at the top of the third plate frame 23, and a set of guide pulleys 53 located at the bottom of the third plate frame 23. The third plate frame 23 has through holes. The pull rope 52 is guided by the guide pulleys 53 at the top of the third plate frame 23, passes through the through holes, and is guided and connected to the guide pulleys 53 at the bottom of the third plate frame 23.

[0052] The part of the pull rope 52 closest to the human body is connected to the force sensor 54.

[0053] For different individuals, limb suspension mechanisms apply a constant tension force to the body parts with a certain degree of precision, while simultaneously requiring comfort during the subject's movement, which is quite challenging to achieve. This utility model's limb suspension mechanism employs a combination design of a servo motor, elastic rope, and force sensor to generate an upward tension force perpendicular to the body. The initial tension (Fb) is calibrated during system initialization: the servo motor drives the rope to pull upwards, and when the force sensor detects a change in value, it records the current tension. Through automatic control principles and PID algorithms, precise control of the load force is achieved, ensuring that the load force remains stably within 20% of the test subject's state.

[0054] This utility model's tilt-support type low-gravity motion simulation training platform also includes a data acquisition mechanism for synchronously collecting data on foot force, movement distance, joint angle changes, device tilt angle, strength training load, and heart rate during human movement. For example, a pressure sensor can be built into the treadmill to collect foot force; movement distance can be obtained through treadmill data; a wireless inertial sensor can be used to collect joint angle changes; an angle sensor can be used to collect device tilt angle; a force sensor can be used to collect strength training load; and a wireless heart rate sensor can be used to collect heart rate during exercise.

[0055] The tilt-support type low gravity motion simulation training platform of this utility model also includes a display control unit 6, which is used to collect, display, analyze and store corresponding signal data. The data collected by each sensor can be synchronously transmitted to the display control unit, and can be finally displayed on the screen through the display and control system. The generated data has functions such as query, playback, zoom, marking and export.

[0056] The tilted support type low gravity motion simulation training method of this utility model includes the following steps:

[0057] S1. The athlete's feet are supported on the support surface of the exercise mechanism 4, and their back is supported on the frame 21; connect to the limb suspension mechanism; select the exercise mode;

[0058] S2. The rotary drive mechanism 3 drives the support frame 2 to rotate until the angle between the support surface of the motion mechanism 4 and the vertical direction is α. During the motion, the constant tension T exerted by the limb suspension mechanism on the human body is calculated by the following formula:

[0059] T = G·cosα

[0060] In the formula: G is the gravitational force exerted on the test personnel in the Earth's environment;

[0061] S3. During exercise training, the data acquisition mechanism simultaneously collects data on the force on the sole of the foot, movement distance, joint angle changes, device tilt angle, strength training load, and heart rate parameters of the human body during exercise; the display control unit 6 collects, displays, analyzes, and stores the data.

[0062] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A low-gravity motion simulation training platform with inclined support, characterized in that, The utility model provides a kind of body exercise device, including base (1), support frame (2), rotary drive mechanism (3), movement mechanism (4) and limb suspension mechanism, the base (1) is fixedly arranged, the support frame (2) is a character-shaped, including sequentially vertically connected plate frame one (21), plate frame two (22) and plate frame three (23), wherein plate frame one (21) is used to support the back of the exerciser;Movement mechanism (4) is fixedly installed on plate frame two (22);The both sides of support frame (2) are rotatably connected with base (1) by pivot (24), and rotary drive mechanism (3) is hinged between the back of plate frame one (21) and base (1), and rotary drive mechanism is used to drive support frame (2) to rotate, and limb suspension mechanism is positioned by plate frame three (23) and connected with the limbs of the exerciser, for hanging and giving constant tension to human body parts.

2. The reclined support low-gravity motion simulation training platform according to claim 1, wherein, The both sides of plate frame one (21) are provided with slide rails (211), and a plurality of support belts (212) are slidably connected with the slide rails (211) by slide blocks (213).

3. The reclined support low-gravity motion simulation training platform according to claim 1, wherein, The rotary drive mechanism (3) is a hydraulic cylinder, a gas cylinder or a servo electric cylinder.

4. The reclined support low-gravity motion simulation training platform according to claim 1, wherein, The limb suspension mechanism includes a plurality of groups of sling assemblies (5), each sling assembly (5) includes a servo motor (51), a pull rope (52) and a plurality of groups of guide pulleys (53), the servo motor (51) is fixedly installed on one side of the plate frame two (22) deviated from the movement mechanism (4), the output shaft of the servo motor (51) is connected with a wheel disc on the outside, the pull rope (52) is wound around the wheel disc, the plate frame two (22) or the plate frame three (23) is provided with a plurality of groups of guide pulleys (53), and the pull rope (52) is guided through the plurality of groups of guide pulleys (53) in sequence and can be connected with the human body parts.

5. The reclined support low-gravity motion simulation training platform according to claim 4, wherein, The plurality of groups of guide pulleys (53) include a group of guide pulleys (53) arranged on one side of the plate frame two (22) deviated from the movement mechanism (4), two groups of guide pulleys (53) arranged at the top end of the plate frame three (23) and a group of guide pulleys (53) arranged at the bottom end of the plate frame three (23), a through hole is formed in the plate frame three (23), the pull rope (52) is guided through the guide pulleys (53) at the top end of the plate frame three (23), passes through the through hole and is guided and connected with the guide pulleys (53) at the bottom end of the plate frame three (23).

6. The reclined support low-gravity motion simulation training platform according to claim 4, wherein, The part of the pull rope (52) close to the human body is connected with a force sensor (54).

7. The reclined support low-gravity exercise simulation training platform according to claim 1, wherein, Further comprising a data acquisition mechanism for synchronously acquiring the force on the sole, the movement distance, the joint angle change, the device inclination angle, the strength training load and the heart rate when the human body moves.

8. The reclined support low-gravity motion simulation training platform according to claim 1, wherein, Further comprising a display control unit (6) for acquiring, displaying, analyzing and storing the corresponding signal data.

9. The reclined support low-gravity exercise simulation training platform according to claim 1, wherein, The angle α between the support surface of the movement mechanism (4) and the vertical direction is 0-35°.

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