Shoe anti-rollover performance test equipment

Abstract

The utility model discloses a shoe anti-rollover performance test device, comprising a simulation foot device which comprises a simulation leg model and a simulation foot model, the simulation leg model simulates knee joint motions when a leg treads and lifts up, and the simulation foot model wears a shoe to simulate ankle joint motions when the foot stands or laterally stretches and lifts up; the ground-like device is provided with a treading platform mechanism and a lifting mechanism, the treading platform mechanism is provided with a test platform, and the test platform is provided with a treading plane for simulating the simulation foot mold and bears treading force generated when the simulation foot mold performs lateral pedaling and stretching actions; the lifting mechanism controls the treading platform mechanism to move in the vertical direction so that the sole of the simulation foot mold can make close contact with the testing platform. And a control and data acquisition module. The utility model provides an anti-rollover performance test device for shoes, which can simulate landing angles, impact forces and action time between different legs and feet and the ground, and evaluate the overall anti-rollover performance difference of the shoes under different exercise intensities.

Description

Technical Field

[0001] The utility model relates to the technical field of footwear performance testing equipment, in particular to a shoe rollover prevention performance testing equipment. Background Art

[0002] When humans perform various foot movements such as walking, running, and climbing, they will experience the processes of heel landing, full palm support, and forefoot extension. The rotation and swing of the ankle joint is particularly critical in these movements, especially when running on a curve. However, when these movements are excessive and exceed the control ability of the human body and the stability and protection ability of the shoes, the feet may suffer injuries such as sprains. The anti-rollover performance of the whole shoe refers to the ability of sports shoes to effectively prevent the foot from turning inward and outward during human movement, such as foot landing, change of direction, and sudden stop, thereby reducing the risk of ankle sprains or sprains. This performance is crucial for footwear products, but there is currently a lack of test equipment on the market that can directly measure the anti-rollover performance of the whole shoe. Most of the existing evaluation methods rely on real-person tests, which evaluate the differences in the anti-rollover performance of different shoes by asking the tester to perform a series of fixed movements and then combining a visual perception measurement system. However, this method has many limitations. First, it cannot accurately simulate the actual performance of shoes under various complex sports conditions; second, the results of real-life tests are greatly affected by individual differences among testers, and it is difficult to ensure the objectivity and consistency of the evaluation results; finally, this method consumes a lot of time and manpower, and is costly. The industry also lacks effective means to evaluate the anti-rollover performance of shoes through physical and mechanical methods. Although the performance of local areas of shoes can be evaluated, this method is difficult to accurately reflect the anti-rollover performance of the entire shoe. Although the method of human biomechanics is closer to the actual sports state, due to the large differences between different individuals, the evaluation results are difficult to accurately repeat, and the requirements for human testers are high, which is not suitable for large-scale application. Therefore, in order to systematically study the differences in anti-rollover performance in different types of sports, formulate scientific and effective evaluation methods and corresponding product function standards to guide the development of new products, there is an urgent need for a test device that can simulate the real sports state and accurately measure the anti-rollover performance of the entire shoe. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned defects or problems existing in the background technology and to provide a shoe anti-rollover performance test device, which can simulate the landing angles, impact forces and action times between different legs and feet and the ground. Through these different force tests, the overall anti-rollover performance differences of the shoes under different exercise intensities can be evaluated.

[0004] To achieve the above objectives, each embodiment of the present invention adopts the following technical solutions but is not limited to the following solutions:

[0005] The first technical scheme relates to a shoe anti-rollover performance test device, comprising: a simulated foot device, which comprises a simulated foot model with a simulated ankle joint mechanism and a simulated leg model with a simulated leg mechanism, the simulated leg model is connected to the simulated foot model, the simulated leg model is suitable for simulating the movement of the knee joint when the leg is stepped on and lifted, and the simulated foot model is suitable for wearing shoes to simulate the movement of the ankle joint during standing or lateral extension and lifting of the foot; a ground-like device, which is provided with a stepping platform mechanism and a lifting mechanism, the stepping platform mechanism is fixedly connected to the lifting mechanism; the stepping platform mechanism comprises a test platform, the test platform is installed below the simulated foot model, and is provided with a stepping plane for simulating the standing of the simulated foot model, the stepping plane bears the stepping force of the simulated foot model performing lateral extension; the lifting mechanism controls the stepping platform mechanism to move in the vertical direction so that the sole of the simulated foot model can be in close contact with the stepping plane; and a control and data acquisition module, which is used for data acquisition, processing, display and test parameter setting of the lateral extension action of the foot.

[0006] The second technical solution is based on the first technical solution, wherein the simulated leg mechanism includes a first control component and a swing angle component, the first control component controls the simulated leg model so that the simulated leg model simulates the movement state of standing, lifting, and lateral extension of the leg; the swing angle component is installed at the lower end of the simulated leg model close to the simulated foot model to simulate the bending and straightening activities of the human knee joint.

[0007] The third technical solution is based on the second technical solution, wherein the first control component includes an electric cylinder, a servo motor and a harmonic reducer, the electric cylinder is connected to a simulated leg model to push or pull the simulated leg model to simulate the action of standing or lifting the legs, and the servo motor and the harmonic reducer control the simulated leg model to simulate the dynamic behavior of the legs during standing and rapid lateral extension.

[0008] The fourth technical solution is based on the second technical solution, wherein the simulated ankle joint mechanism includes a screw with a synchronous belt and an encoder, the screw is installed at the ankle joint of the simulated foot model to simulate the movement of the human leg ankle joint, and the encoder is connected to the screw through the synchronous belt to measure and record the rollover angle of the simulated foot model during the test in real time.

[0009] The fifth technical solution is based on the first technical solution, wherein the pedaling platform mechanism includes a sensor, which senses and records the numerical value of the pedaling force when the simulated foot model performs a lateral extension action; the sensor is installed under the test platform; the test platform is suitable for moving in the horizontal direction and in a direction perpendicular to the horizontal direction to ensure that the sensor is always in the middle position of the shoe when testing shoes of different sizes and angles.

[0010] The sixth technical solution is based on the fifth technical solution, wherein the sensor is a force sensor, which can be a single-axis or three-axis type.

[0011] The seventh technical solution is based on the sixth technical solution, wherein the pedaling platform mechanism includes a second control component, which drives and controls the test platform to move left and right in the horizontal direction and in a direction perpendicular to the horizontal direction.

[0012] The eighth technical solution is based on the seventh technical solution, wherein the second control component includes a T-type screw, a worm reducer and a stepper motor.

[0013] The ninth technical solution is based on the first technical solution, wherein the lifting mechanism includes a third control component, a guide rod and a lifting platform, the guide rod is perpendicular to the lifting platform and fixedly connected to the lifting platform, the pedaling platform mechanism is fixedly connected to the lifting platform, and the third driving component drives the guide rod to move in the vertical direction, thereby driving the lifting platform and the pedaling platform mechanism fixed thereon to move in the vertical direction, so that the sole of the simulated foot model can be in close contact with the test platform.

[0014] The tenth technical solution is based on the ninth technical solution, wherein the third control component includes a third motor, a third synchronous wheel, a third synchronous belt and a third screw rod, the third motor and the third synchronous wheel are connected to the shaft of the third screw rod through the third synchronous belt, and the guide rod is movably connected to the third screw rod.

[0015] From the above description of the various embodiments of the present invention, it can be seen that, compared with the prior art, the various embodiments of the present invention have the following beneficial effects:

[0016] In the first technical solution and related embodiments, the movements in the actual sports process are simulated mechanically, and the performance of the shoes is evaluated by measuring the changing parameters of the foot and the shoes during the impact process. In this way, the performance of the shoes in different sports states can be understood more accurately, thereby providing consumers with more suitable sports shoes. When the human body is in motion, the landing method will vary depending on the type of sports. For example, when running, the heel usually lands first, and the forefoot is responsible for stretching and exerting force; when playing ball, it is necessary to quickly change direction laterally. During these movements, the force magnitude and time distribution of the foot are different. In order to accurately evaluate the performance of the shoes, especially the anti-rollover performance, this embodiment can truly simulate the movement state of the human foot when standing or stretching laterally through a simulated foot device. In particular, a simulated foot model simulating the ankle joint mechanism wears shoes and performs a series of impact compression tests to simulate the flip angle and movement of the ankle joint in actual sports, thereby more accurately reflecting the performance of the shoes in real sports scenes. The setting of the quasi-ground device, the combination of the stepping platform mechanism and the lifting mechanism, not only simulates the real stepping plane, but also ensures that the sole of the simulated foot model is in close contact with the test platform by controlling the lifting of the test platform. During the test, different parameters such as leg angles, foot angles, impact force values, and impact time were set through the control and data acquisition module to simulate the impact conditions in real sports scenes. Through these tests, key data such as the rollover angle of the ankle joint and the size of the deformation of the upper surface can be collected. The anti-rollover performance of the shoe is evaluated by measuring the parameter results during these real sports processes.

[0017] In the second technical solution and related embodiments, the simulated leg mechanism realizes precise control of the simulated leg model by integrating the first control component and the swing angle component. The first control component can simulate various motion states such as standing, lifting, and lateral stretching of the legs, providing a rich simulation scene for the anti-rollover performance test of the shoes. At the same time, the design of the swing angle component enables the simulated leg model to naturally simulate the bending and straightening activities of the human knee joint when the swing angle component is released, further enhancing the authenticity of the simulation. This design not only improves the simulation degree of the test equipment, making the test results closer to the actual wearing situation, but also can comprehensively and accurately evaluate the anti-rollover performance of the shoes.

[0018] In the third technical solution and related embodiments, the first control component realizes a more accurate and realistic simulation of leg movements through components such as electric cylinders, servo motors, harmonic reducers, and pressure plates. Specifically, the push or pull function of the electric cylinder can simulate the action of standing or lifting the legs, providing a simulation environment that is closer to the actual motion state for the test. The servo motor is responsible for realizing the complex movements of human legs standing and rapidly stretching sideways, while the harmonic reducer is used to accurately adjust the inclination angle of the legs to ensure that the simulated leg movements are more natural and accurate.

[0019] In the fourth technical solution and related embodiments, the simulated ankle joint mechanism realizes the accurate simulation of the ankle joint activity of the simulated foot model and the real-time measurement of the rollover angle by introducing a screw and an encoder with a synchronous belt. Specifically, the setting of the screw enables the simulated foot model to simulate the complex activities of the human leg ankle joint in motion, including bending, stretching, and rollover, thereby more realistically restoring the actual motion state. The connection between the encoder and the synchronous belt ensures that the rollover angle of the simulated foot model during the test can be measured and recorded in real time and accurately.

[0020] In the fifth technical solution and related embodiments, the pedaling platform mechanism is equipped with a sensor for sensing and recording the pedaling force value or torque size and direction of the simulated foot model when performing lateral extension. First of all, the sensor can collect key data of the pedaling force during the test in real time and accurately, providing strong data support for evaluating the anti-rollover performance of the shoe. When the sensor is installed under the test platform, the test platform can move left and right in the horizontal direction, and can also move forward and backward in a direction perpendicular to the horizontal direction, ensuring that when testing shoes at different angles, the sensor can always be accurately aligned with the middle position of the shoe, thereby improving the accuracy and reliability of the test.

[0021] In the sixth technical solution and related embodiments, by using a force sensor, the device can accurately measure the force changes applied to the shoes during the test. This helps us fully understand the force conditions of the shoes, so as to accurately evaluate their anti-rollover performance. Both single-axis and three-axis force sensors can provide reliable force data, providing a strong guarantee for the accuracy of the test results. Single-axis force sensors mainly focus on force changes in a single direction and are suitable for force tests in a specific direction. The three-axis force sensor can simultaneously measure force changes in three different directions, providing more comprehensive force data. This enables the equipment to adapt to different test requirements and flexibly respond to various test scenarios.

[0022] In the seventh technical solution and related embodiments, the second control component can drive the test platform to move left and right in the horizontal direction, and move forward and backward in a direction perpendicular to the horizontal direction, ensuring that when testing shoes at different angles, the sensor can always be accurately aligned with the middle position of the shoe.

[0023] In the eighth technical solution and related embodiments, the second control component realizes precise control of the horizontal movement of the test platform and the forward and backward movement in the direction perpendicular to the horizontal direction through the combined control of the T-type screw rod, the worm gear reducer and the stepper motor. In order to ensure that the sensor can accurately sense the force value, the test platform can move in two dimensions: left and right movement and forward and backward movement. First, through the coordinated work of the T-type screw rod and the stepper motor, the test platform can achieve accurate and stable left and right or forward and backward movement. The introduction of the worm gear reducer further improves the stability and accuracy of the test platform during movement. The worm gear reducer can effectively reduce the speed of the stepper motor and increase the torque, making the test platform more stable during movement and reducing the impact of vibration or shaking on the test data. Specifically, a combination of two sets of T-type screw rods, worm gear reducers and stepper motors is used. Left and right movement is achieved by the first T-type screw rod, the first worm gear reducer and the first stepper motor. The first stepper motor drives the first worm gear reducer, and then drives the first T-type screw rod, so that the test platform moves left and right in the horizontal direction; forward and backward movement is achieved by the second T-type screw rod, the second worm gear reducer and the second stepper motor. This mechanism also uses a second stepper motor to drive a second worm reducer, which in turn drives a second T-type lead screw to move the test platform back and forth perpendicular to the horizontal direction. This two-dimensional position adjustment ensures that the sensor is always in the middle of the shoe when testing shoes of different sizes and angles, thereby obtaining the most accurate force data.

[0024] In the ninth technical solution and related embodiments, the lifting mechanism includes a guide rod and a third control assembly connected to the test platform, which enhances the stability and reliability of the lifting mechanism. The third drive assembly drives and controls the guide rod to move up and down in the vertical direction so that the sole of the simulated foot model can be in close contact with the test platform; the guide rod can ensure the smooth movement of the test platform during the lifting process, effectively preventing shaking or deviation, thereby ensuring the accuracy of the test data. The guide rod is not only used to support the test platform, but also to share the reaction force generated between the sole and the test platform during the rollover experiment. During the rollover process, the sole will exert a lateral force on the test platform, and this force will be dispersed through the guide rod, thereby enhancing the structural stability and durability of the entire device.

[0025] In the tenth technical solution and related embodiments, the third control component includes a motor, a synchronous wheel, a synchronous belt and a screw rod, and the motor is connected to the synchronous wheel by the synchronous belt, thereby driving the screw rod to rotate. The movable connection between the guide rod and the screw rod realizes the precise control of the guide rod. The motor serves as a power source, and transmits the rotational power to the synchronous wheel through the synchronous belt, and the synchronous wheel then drives the screw rod to rotate. The rotational motion of the screw rod is converted into linear motion by the guide rod, thereby realizing precise displacement control of the guide rod. Since the guide rod is connected to the test platform, the test platform will also rise and fall accordingly. This lifting mechanism ensures that the sole of the simulated foot model can be in close contact with the test platform, whether in the process of stepping on or releasing. This mechanical transmission method is characterized by high efficiency, stability and high precision, ensuring the accuracy and reliability of the movement of the guide rod during the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 This is a schematic diagram of a shoe rollover resistance test device according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of a shoe simulation foot device according to Embodiment 1;

[0029] Figure 3 It is a schematic diagram of a ground device in an embodiment;

[0030] Figure 4 It is a schematic diagram of a stepping platform mechanism in an embodiment of a ground device;

[0031] Figure 5 Schematic diagram of the lifting mechanism in a ground device according to an embodiment of the present invention.

[0032] Description of main reference numerals:

[0033] Simulated foot device 1; ground-like device 2; simulated foot model 3; simulated leg model 4; pedaling platform mechanism 5; lifting mechanism 6; sensor 7; operating table 8; workstation 9; shoe last 10; electric cylinder 11; servo motor 12; harmonic reducer 13; swing angle member 14; screw 15; encoder 16; base 17; mobile platform 18; first linear guide 19; pedaling plane 20; first T-type lead screw 21; first worm reducer 22; first stepper motor 23; second T-type lead screw 24; second worm reducer 25; second stepper motor 26; second linear guide 27; guide rod 28; lifting platform 29; third motor 30; third synchronous wheel 31; third synchronous belt 32; third lead screw 33. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are preferred embodiments of the utility model and should not be regarded as excluding other embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0035] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" etc. is to distinguish different objects rather than to describe a specific order.

[0036] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise explicitly defined, directional words, such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the specific protection scope of the utility model.

[0037] In the claims, specification and the above drawings of the utility model, unless otherwise clearly defined, if the term "fixed connection" or "fixed connection" is used, it should be understood in a broad sense, that is, any connection method without a displacement relationship and relative rotation relationship between the two, that is to say, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements.

[0038] In the claims, specification and drawings of the present utility model, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0039] See also Figures 1 to 5 ,like Figure 1 As shown, a shoe anti-rollover performance test device includes a simulated foot device 1, a ground-like device 2 and a control and data acquisition module.

[0040] Embodiment 1

[0041] Simulation foot device 1, as Figure 2 As shown, it includes a simulated foot model 3 and a simulated leg model 4, wherein the simulated leg model 4 is connected to the simulated foot model 3, the simulated leg model 4 is suitable for simulating the movement of the knee joint when the leg is stepped on and lifted, and the simulated foot model 3 is suitable for wearing shoes to simulate the movement of the ankle joint during the standing or lateral extension and lifting of the foot. The simulated foot device 1 can simulate the process of the simulated foot model wearing shoes to perform rapid lateral stepping and then lifting, thereby truly reproducing the mechanical performance in the actual use scenario. The simulated foot model 3 includes a simulated ankle joint mechanism and a shoe last 10, and the shoe last 10 is detachably and rotatably connected to the simulated ankle joint mechanism, and the shoe last 10 of different sizes can be replaced for simulation testing. The simulated leg model 4 includes a simulated leg mechanism and a simulated leg. The simulated leg is rotatably connected to the simulated leg mechanism.

[0042] The simulated leg mechanism includes a first control component and a swing angle member 14. The first control component controls the simulated leg model 4 so that the simulated leg model 4 simulates the motion state of the leg standing, lifting, and lateral extension. The swing angle member 14 is installed at the lower end of the simulated leg model 4 near the simulated foot model 3 to simulate the bending and straightening of the knee joint of the human leg. Specifically, the first control component includes an electric cylinder 11, a servo motor 12, and a harmonic reducer 13. The electric cylinder 11 is connected to the simulated leg model 4, pushing or pulling the simulated leg model 4 to simulate the motion of standing or lifting the leg. The servo motor 12 and the harmonic reducer 13 control the simulated leg model 4 to simulate the dynamic behavior of the leg during standing and lateral rapid extension. The swing angle member 14 is a pressing plate. In this embodiment, the simulated leg mechanism realizes precise control of the simulated leg model 4 by integrating the first control component and the swing angle member 14. The first control component can simulate a variety of motion states such as standing, lifting, and lateral extension of the leg, providing a rich simulation scene for the anti-rollover performance test of the shoe. At the same time, the design of the angle swing member 14 enables the simulation leg mold 4 to naturally simulate the bending and straightening activities of the human leg knee joint when the angle swing member 14 is released, further enhancing the authenticity of the simulation. This design not only improves the simulation degree of the test equipment, making the test results closer to the actual wearing situation, but also can comprehensively and accurately evaluate the anti-rollover performance of the shoes. The first control component realizes a more accurate and realistic simulation of leg movements through components such as the electric cylinder 11, the servo motor 12, the harmonic reducer 13 and the pressure plate. Specifically, the pushing or pulling function of the electric cylinder 11 can simulate the action of standing or lifting the legs, providing a simulation environment that is closer to the actual motion state for the test. The servo motor 12 is responsible for realizing the complex actions of human leg standing and rapid lateral extension, while the harmonic reducer 13 is used to accurately adjust the inclination angle of the legs to ensure that the simulated leg movements are more natural and accurate.

[0043] The simulated ankle joint mechanism includes a screw 15 with a synchronous belt and an encoder 16. The screw 15 is installed at the ankle joint of the simulated foot model 3 to simulate the ankle joint activity of the human leg. The encoder 16 is connected to the screw 15 through a synchronous belt to measure and record the rollover angle of the simulated foot model 3 during the test in real time. The simulated ankle joint mechanism achieves accurate simulation of the ankle joint activity of the simulated foot model 3 and real-time measurement of the rollover angle by introducing the screw 15 with a synchronous belt and the encoder 16. Specifically, the setting of the screw 15 enables the simulated foot model 3 to simulate the complex activities of the ankle joint of the human leg in motion, including bending, stretching, and rollover, thereby more realistically restoring the actual motion state. The connection between the encoder 16 and the synchronous belt ensures that the rollover angle of the simulated foot model 3 during the test can be measured and recorded in real time and accurately.

[0044] Class 2 ground device, such as Figures 3 to 5 As shown, it is provided with a stepping platform mechanism 5 and a lifting mechanism 6, and the stepping platform mechanism 5 is fixedly connected to the lifting mechanism 6. Figure 4 As shown, the pedaling platform mechanism 5 includes a test platform, a sensor 7, a second control assembly and a mobile platform 18. The test platform is installed below the simulation foot model 3. Specifically, the test platform includes a pedaling plane 20 and a base 17, and the base 17 is detachably connected to the pedaling plane 20. The pedaling plane 20 is used to simulate the plane on which the simulation foot model 3 stands, and it bears the pedaling force of the simulation foot model 3 performing a lateral extension action.

[0045] Sensor 7, which senses and records the numerical value of the pedaling force when the simulated foot model 3 performs a lateral pedaling action. Specifically, the pedaling platform mechanism 5 is equipped with a sensor 7, which is used to sense and record the numerical value of the pedaling force when the simulated foot model 3 performs a lateral pedaling action. First, the sensor 7 can collect the key data of the pedaling force during the test in real time and accurately, and provides strong data support for evaluating the anti-rollover performance of the shoe. The sensor 7 is installed below the test platform, located between the pedaling plane 20 and the base 17. The sensor 7 adopts a force sensor 7, and a single-axis or three-axis type can be selected; the test platform is suitable for moving left and right in the horizontal direction and moving forward and backward in a direction perpendicular to the horizontal direction to ensure that the sensor 7 is always in the middle of the shoe when testing shoes of different sizes and angles. When the sensor 7 is installed below the test platform, the force sensor 7 can be used to accurately measure the pedaling force received by the shoe during the test. This is crucial for evaluating the anti-rollover performance of the shoe, because the accurate measurement of the pedaling force can directly reflect the stability of the shoe under stress. Secondly, the test platform can move left and right in the horizontal direction, and can also move forward and backward in a direction perpendicular to the horizontal direction, ensuring that when testing shoes at different angles, the sensor 7 can always be accurately aligned with the exact middle position of the shoe, thereby improving the accuracy and reliability of the test. In this embodiment, by using a force sensor, the device can accurately measure the force changes to which the shoe is subjected during the test. This helps us to fully understand the force conditions of the shoe, so as to accurately evaluate its anti-rollover performance. Both uniaxial and triaxial force sensors can provide reliable force data, providing a strong guarantee for the accuracy of the test results. Uniaxial force sensors mainly focus on force changes in a single direction and are suitable for force tests in a specific direction. The triaxial force sensor can simultaneously measure force changes in three different directions, providing more comprehensive force data. This enables the device to adapt to different test requirements and flexibly respond to various test scenarios.

[0046] The second control component is responsible for driving and controlling the test platform to move left and right in the horizontal direction and move forward and backward perpendicular to the horizontal direction. The component includes a T-type lead screw, a worm reducer, a stepper motor, and a linear guide. Through the precise coordination of these components, the second control component realizes the precise movement control of the test platform in two dimensions. In order to meet the testing requirements of shoes of different sizes, the test platform needs to have the ability to move freely in the left and right and front and back directions. This function is realized mainly by the coordinated work of the T-type lead screw and the stepper motor. Together, they ensure the accuracy and stability of the test platform during movement. At the same time, the application of the worm reducer further improves the stability and accuracy of the movement process. It can effectively reduce the speed of the stepper motor and increase the torque, making the test platform more stable when moving, thereby reducing the impact of vibration or shaking on the test data. In summary, the second control component provides a reliable movement mechanism for the test platform through precise mechanical design and electrical control, ensuring accuracy and reliability during the test process.

[0047] The mobile platform 18 is a flat structure used to support the test platform and realize its multi-dimensional movement. In order to realize the movement of the test platform in two different dimensions, we use two identical second control components: the first control component and the second control component. The first control component includes a first T-type screw rod 21, a first worm reducer 22, a first stepper motor 23 and two first linear guides 19. This group of components is responsible for driving the test platform to move left and right in the horizontal direction. The base 17 of the test platform is firmly connected to the sliders of the two first linear guides 19 to ensure that the platform can move stably along the guide rails. The second group of control components includes a second T-type screw rod 24, a second worm reducer 25, a second stepper motor 26 and two second linear guides 27. The main task of this group of components is to drive the mobile platform 18 to move forward and backward in a direction perpendicular to the horizontal direction. The mobile platform 18 is also fixedly connected to the sliders of the two second linear guides 27 to ensure its stability and accuracy during movement. It is worth noting that the first group of control components and the test platform are both installed above the mobile platform 18. Through this arrangement, the test platform can not only move in the horizontal direction, but also move forward and backward in a direction perpendicular to the horizontal direction through the movement of the mobile platform 18, thereby meeting multi-dimensional testing requirements.

[0048] The first group of control components drives the first worm reducer 22 through the first stepper motor 23, and then drives the first T-type screw 21, so that the test platform can move left and right in the horizontal direction along the first linear guide 19. To achieve the forward and backward movement of the test platform, it depends on the cooperation of the second T-type screw 24, the second worm reducer 25 and the second stepper motor 26. The second group of control components is responsible for driving and controlling the mobile platform 18 to move forward and backward along the second linear guide 27 in a direction perpendicular to the horizontal direction. This mechanism also uses the second stepper motor 26 to drive the second worm reducer 25, and then drive the second T-type screw 24, to ensure that the mobile platform 18 can stably move forward and backward in the direction perpendicular to the horizontal direction, thereby driving the test platform to move forward and backward in the corresponding direction.

[0049] Lifting mechanism 6, such as Figure 5As shown, it includes a third control component, a guide rod 28 and a lifting platform 29. The lifting mechanism 6 controls the stepping platform mechanism 5 to move up and down in the vertical direction so that the sole of the simulation foot model 3 can be in close contact with the test platform. The guide rod 28 is perpendicular to the lifting platform 29 and is fixed to the lifting platform 29. The stepping platform mechanism 5 is fixed to the lifting platform 29. The third driving component drives and controls the guide rod 28 to move up and down in the vertical direction so that the sole of the simulation foot model 3 can be in close contact with the test platform. The lifting mechanism 6 includes a guide rod 28 connected to the test platform and a third control component, which enhances the stability and reliability of the lifting mechanism 6. The third driving component drives the guide rod 28 to move in the vertical direction, thereby driving the lifting platform 29 and the stepping platform mechanism 5 fixed thereon to move in the vertical direction, so that the sole of the simulation foot model 3 can be in close contact with the test platform; the guide rod 28 can ensure the smooth movement of the test platform during the lifting process, effectively preventing shaking or deviation, thereby ensuring the accuracy of the test data. The guide rod 28 is not only used to support the test platform, but also to share the reaction force generated between the sole and the test platform during the rollover experiment. During the rollover process, the sole will apply a lateral force to the test platform, and this force will be dispersed through the guide rod 28, thereby enhancing the structural stability and durability of the entire device. Specifically, the third control assembly includes a third motor 30, a third synchronous wheel 31, a third synchronous belt 32 and a third screw rod 33. The third motor 30 and the third synchronous wheel 31 are connected to the shaft of the third screw rod 33 through the third synchronous belt 32, and the guide rod 28 is movably connected to the third screw rod 33. In this embodiment, the third control assembly connects the third motor 30 with the third synchronous wheel 31 through a synchronous belt, and then drives the third screw rod 33 to rotate. The movable connection of the guide rod 28 and the third screw rod 33 realizes the precise control of the guide rod 28. The third motor 30, as a power source, transmits the rotational power to the third synchronous wheel 31 through a synchronous belt, and then the third synchronous wheel 31 drives the third screw rod 33 to rotate. The rotational motion of the third screw rod 33 is converted into linear motion through the guide rod 28, thereby realizing precise displacement control of the guide rod 28. Since the guide rod 28 is connected to the test platform, the test platform will also rise and fall accordingly. This lifting mechanism ensures that the sole of the simulated foot mold 3 can be in close contact with the test platform, whether in the process of stepping on or releasing. This mechanical transmission method is efficient, stable, and high-precision, ensuring the accuracy and reliability of the movement of the guide rod 28 during the test.

[0050] The control and data acquisition module is used for data collection, processing, display and test parameter setting of the lateral extension of the foot. Specifically, the software data acquisition module is equipped with a complete set of software that can accurately realize the setting of loading time, loading force, downward displacement, unloading time and number of cycles during the lateral extension of the foot. At the same time, the software can also record and display the changes in ankle joint angles and corresponding time, angle and other data in real time. During the test, the user can intuitively observe the changes in relevant curves and data such as time, force, displacement, angle, etc., so as to comprehensively analyze the anti-rollover performance of the shoe.

[0051] The control and data acquisition module includes an operation console 8 and a workstation 9. Figure 1 As shown, the operating platform 8 and the workstation 9 are used for operating and working equipment. Among them, the ground-like device 2 is installed on the operating platform 8, and the workstation 9 is a computer and a display.

[0052] The possibility of foot rollover in different motion states can be roughly divided into three situations. The first is the rollover phenomenon that occurs when the heel lands; the second is the rollover that occurs when the forefoot is stretched and stretched; the third is the rollover phenomenon that may occur during a violent lateral stretching action, that is, side cutting. The rollover risks under these different motion states need to be fully considered and simulated in the shoe anti-rollover performance test equipment to ensure the accuracy and comprehensiveness of the test results. This embodiment simulates the movements in the actual motion process mechanically, and evaluates the performance of the shoe by measuring the changing parameters of the foot and the shoe during the impact process. In this way, the performance of the shoe under different motion states can be more accurately understood, thereby providing consumers with more suitable sports shoes. When the human body is in motion, the landing method will vary depending on the type of motion. For example, when running, the heel usually lands first, and the forefoot is responsible for stretching and stretching; when playing ball, it is necessary to quickly change direction laterally. During these movements, the force magnitude and time distribution of the foot are different. In order to accurately evaluate the performance of the shoes, especially the anti-rollover performance, the present embodiment can truly simulate the motion state of the human body's foot when standing or lateral stretching action through the simulation foot device 1. In particular, the simulation foot model 3 simulating the ankle joint mechanism wears shoes and performs a series of impact compression tests to simulate the flip angle and movement of the ankle joint in actual movement, thereby more accurately reflecting the performance of the shoes in the real sports scene. The setting of the ground-like device 2, the combination of the stepping platform mechanism 5 and the lifting mechanism 6, not only simulates the real stepping plane 20, but also ensures that the sole of the simulation foot model 3 is in close contact with the test platform by controlling the lifting of the test platform. During the test, different leg angles, foot angles, impact force values, and impact time parameters are set by the control and data acquisition module to simulate the impact situation in the real sports scene. Through these tests, key data such as the flip angle of the ankle joint of the foot and the size of the upper surface deformation can be collected. The anti-rollover performance of the shoes is evaluated by measuring the parameter results in these real sports processes.

[0053] In other embodiments, for the artificial foot device 1, one or more alternatives of different mechanical devices such as motors, hydraulics or mechanical arms can be used to achieve the technical effect of the artificial foot device 1.

[0054] Embodiment 2

[0055] A hydraulic device is used to simulate the artificial foot device 1. The hydraulic device can also be used as an alternative to simulate the movements of the legs and feet due to its high power density and fast response.

[0056] Rollover force simulation: A hydraulic cylinder is used instead of the electric cylinder 11, and the rollover force simulation is achieved by controlling the pressure and flow of the hydraulic system.

[0057] Standing and lowering body simulation: The functions of the servo motor 12 and the reducer can be realized by the hydraulic motor and the corresponding hydraulic control valve. By accurately controlling the speed and direction of the hydraulic motor and the opening of the hydraulic control valve, the mechanical characteristics of human legs in different postures can be simulated.

[0058] Knee and ankle joint motion simulation: A linkage mechanism driven by a hydraulic cylinder or a hydraulic motor is used to simulate the function of the pressure plate and the screw 15.

[0059] Rollover angle feedback: The sensor 7 provided in the hydraulic cylinder or hydraulic motor or the independent rotary encoder 16 can be used to monitor and feedback the rollover angle information in real time.

[0060] Embodiment 3

[0061] Robotic arm alternatives: Robotic arms are highly flexible and programmable and can also be used as an alternative to simulate the movements of legs and feet.

[0062] Overall motion simulation: Use a multi-joint robotic arm to simulate the motion of the entire leg and foot. By programming and controlling the motion trajectory and speed of each joint of the robotic arm, complex movements such as standing up, lowering the body, and rolling over can be achieved.

[0063] Rollover force simulation: The end of the robot arm can be equipped with a corresponding actuator to simulate the rollover force. The actuator can be designed according to the experimental requirements to achieve the required mechanical characteristics.

[0064] Knee and ankle joint activity simulation: The joints of the robotic arm can simulate the activities of the knee and ankle joints. By precisely controlling the rotation angle and speed of the joints, the joint activities in different postures can be simulated.

[0065] Rollover angle feedback: An angle sensor 7 is installed at the corresponding joint of the robot arm to monitor and feedback the rollover angle information in real time to ensure the accuracy and repeatability of the experiment.

[0066] It should be noted that the above alternatives are only one of the possible implementation methods. The specific solution design needs to be comprehensively considered and optimized according to the specific needs and conditions of the experiment. At the same time, factors such as the reliability, cost, and maintenance convenience of the solution also need to be considered in practical applications.

[0067] The description of the above specification and embodiments is used to explain the protection scope of the utility model, but does not constitute a limitation on the protection scope of the utility model. Through the enlightenment of the utility model or the above embodiments, ordinary technicians in this field can obtain modifications, equivalent replacements or other improvements to the embodiments of the utility model or part of the technical features thereof through logical analysis, reasoning or limited experiments, which should be included in the protection scope of the utility model.

Claims

1. A shoe rollover resistance test device, characterized in that: include: A simulated foot device (1) comprises a simulated foot model (3) with a simulated ankle joint mechanism and a simulated leg model (4) with a simulated leg mechanism, wherein the simulated leg model (4) is connected to the simulated foot model (3), the simulated leg model (4) is suitable for simulating the movement of the knee joint when the leg is stepped on and lifted, and the simulated foot model (3) is suitable for wearing shoes to simulate the movement of the ankle joint when the foot is standing or lateral extension and lifting; A ground-like device (2) is provided with a stepping platform mechanism (5) and a lifting mechanism (6), wherein the stepping platform mechanism (5) is fixedly connected to the lifting mechanism (6); the stepping platform mechanism (5) comprises a test platform, which is located below the simulation foot model (3); the test platform is provided with a stepping plane (20) for simulating the standing of the simulation foot model (3), and the stepping plane (20) bears the stepping force of the simulation foot model (3) performing a lateral stretching action; the lifting mechanism (6) controls the stepping platform mechanism (5) to move in a vertical direction so that the sole of the simulation foot model (3) can be in close contact with the stepping plane (20); and The control and data acquisition module is used for data collection, processing, display and test parameter setting of the lateral extension action of the foot.

2. A shoe rollover resistance test device as claimed in claim 1, characterized in that: The simulated leg mechanism comprises a first control component and an angle swinging member (14); the first control component controls the simulated leg model (4) so ​​that the simulated leg model (4) simulates the movement state of standing, lifting, and lateral extension of the leg; the angle swinging member (14) is installed at the lower end of the simulated leg model (4) close to the simulated foot model (3) to simulate the bending and straightening activities of the human knee joint.

3. A shoe rollover resistance test device as claimed in claim 2, characterized in that: The first control component comprises an electric cylinder (11), a servo motor (12) and a harmonic reducer (13); the electric cylinder (11) is connected to a simulated leg model (4) to push or pull the simulated leg model (4) to simulate the action of standing or lifting the legs; the servo motor (12) and the harmonic reducer (13) control the simulated leg model (4) to simulate the dynamic behavior of the legs during standing and lateral rapid extension.

4. A shoe rollover resistance test device as claimed in claim 2, characterized in that: The simulated ankle joint mechanism comprises a screw (15) with a synchronous belt and an encoder (16); the screw (15) is installed at the ankle joint of the simulated foot model (3) to simulate the movement of the ankle joint of a human leg; the encoder (16) is connected to the screw (15) through the synchronous belt to measure and record the rollover angle of the simulated foot model (3) during the test in real time.

5. A shoe rollover resistance test device as claimed in claim 4, characterized in that: The pedaling platform mechanism (5) comprises a sensor (7), wherein the sensor (7) senses and records the numerical value of the pedaling force when the simulated foot model (3) performs a lateral pedaling action; the sensor (7) is installed below the test platform; the test platform is suitable for moving in a horizontal direction and in a direction perpendicular to the horizontal direction to ensure that the sensor (7) is always located in the middle of the shoe when testing shoes of different sizes and angles.

6. A shoe rollover resistance test device as claimed in claim 5, characterized in that: The sensor (7) is a force sensor, which may be a single-axis or three-axis type.

7. A shoe rollover resistance test device as claimed in claim 6, characterized in that: The pedaling platform mechanism (5) further comprises a second control component, which drives and controls the test platform to move in a horizontal direction and in a direction perpendicular to the horizontal direction.

8. The shoe rollover resistance test equipment as claimed in claim 7, characterized in that: The second control component includes a T-type lead screw, a worm reducer and a stepper motor.

9. The shoe rollover resistance test equipment as claimed in claim 1, characterized in that: The lifting mechanism (6) comprises a third control component, a guide rod (28) and a lifting platform (29); the guide rod (28) is perpendicular to the lifting platform (29) and fixedly connected to the lifting platform (29); the stepping platform mechanism (5) is fixedly connected to the lifting platform (29); the third control component drives the guide rod (28) to move in a vertical direction, thereby driving the lifting platform (29) and the stepping platform mechanism (5) fixed thereon to move in a vertical direction, so that the sole of the simulated foot model (3) can be in close contact with the test platform.

10. The shoe rollover resistance testing device according to claim 9, characterized in that: The third control assembly comprises a third motor (30), a third synchronous wheel (31), a third synchronous belt (32) and a third screw rod (33); the third motor (30) and the third synchronous wheel (31) are connected to the shaft of the third screw rod (33) via the third synchronous belt (32); and the guide rod (28) is movably connected to the third screw rod (33).

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