CN210094842U

CN210094842U - Sports shoe shock attenuation testing arrangement

Info

Publication number: CN210094842U
Application number: CN201821723682.9U
Authority: CN
Inventors: 卢汉潇
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-10-23
Filing date: 2018-10-23
Publication date: 2020-02-21
Anticipated expiration: 2028-10-23

Abstract

The utility model discloses a sports shoe shock absorption testing device, which comprises a signal generator, a power amplifier, a platform for placing a balance weight, a bracket for simulating the skeleton structure of a human foot, a supporting surface for placing a shoe, a vibration exciter for providing impact action below the device, and an acceleration sensor for testing the shock absorption of the sports shoe; through fixing the sports shoes, adding proper counter weight, the signal generator generates waveforms such as pulse, square wave, sine and the like, the waveforms are amplified by the power amplifier, the vibration exciter is driven to generate various exciting forces such as pulse, square wave, sine and the like, the lower parts of the sports shoes are impacted, and the quick detection of the damping performance of the sports shoes is completed through testing sensor signals of soles and sensor signals in the shoes and comparing.

Description

Sports shoe shock attenuation testing arrangement

Technical Field

The utility model relates to a sports shoes testing arrangement specifically indicates a sports shoes shock attenuation testing arrangement.

Background

In order to ensure the quality and performance of the sports shoe, a shock absorption performance test of the sports shoe is required. Existing athletic shoe cushioning test devices typically impact the athletic shoe through free-fall sports to test cushioning performance. The impact force sensor has the defects that the impact force, the frequency, the duration time and the like cannot be changed, the free falling body movement is generally controlled by electromagnetic, the force sensor is generally arranged on the impact head, and the electromagnetic interference can be generated on the sensor to influence the testing precision.

SUMMERY OF THE UTILITY MODEL

The utility model provides a sports shoes shock attenuation testing arrangement can conveniently change size, frequency and the duration of impact force to this device does not have bad interference to the sensor, and the measuring accuracy is high.

The utility model adopts the following technical scheme.

The damping tester for sports shoes includes stable frame, balance weight platform, linear slide rail, support structure for setting shoes, support to simulate human foot skeleton structure, acceleration sensor installed inside the sole and shoes, vibration exciter below the acceleration sensor to provide impact, signal generator to provide various waveforms, power amplifier and signal collector. The mass blocks with different numbers are fixed on the counterweight platform, the counterweight platform is connected with the stabilizing frame through the linear slide rail, the counterweight platform is connected with the bracket simulating the human foot skeleton structure through the bracket with the slide groove, the counterweight platform is kept perpendicular to the guide rail by adjusting the angle of the triangle, and the counterweight platform is screwed up by threads after being adjusted to a proper angle. The two acceleration sensors are respectively connected with the supporting structure for placing the shoes and the simulated human feet in the shoes in a magnetic attraction mode.

This sports shoes shock attenuation testing arrangement's advantage lies in: the impact action of various waveforms is given to the sports shoes from the lower part, no adverse interference is caused to the sensor, and the test is accurate. By means of the combination of the linear slide rail and the mass balance weight, shoe users with different weights can be simulated accurately, the test device can vibrate integrally along the vertical direction, and the center of gravity is stable. The vibration response under different frequencies is measured by using the acceleration sensors in the shoes and the soles, the test result is clear and definite by observing, comparing and analyzing through the oscilloscope, and the information is transmitted to the computer through the signal acquisition system, so that the damping characteristic of the sports shoes can be accurately and comprehensively tested and analyzed. The test method is convenient to operate and reliable to use.

Drawings

FIG. 1 is a block diagram of the device and method for testing the shock absorption of athletic shoes of the present invention;

fig. 2 is a block diagram of a vibration detection structure according to an embodiment of the present invention;

fig. 3 is a schematic view of a simulated human foot skeleton according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of a detection result according to an embodiment of the present invention.

Detailed Description

The sports shoe testing device is further explained by combining the embodiment and the attached drawings.

Referring to fig. 1, the device for testing shock absorption of sports shoes comprises a signal generator, a power amplifier, a vibration exciter for providing an impact effect, a supporting structure for placing the shoes, a stable frame, a balance weight platform, a bracket for simulating a human foot skeleton structure, an acceleration sensor for testing shock absorption of the sports shoes, and a signal acquisition system.

Referring to fig. 2, the vibration detecting structure includes a stable frame 1, a linear guide rail 2, a counterweight platform 3, a bracket 4 for simulating the human foot skeleton structure, a linear guide rail 5, a sports shoe 6 for testing, a supporting structure 7 for placing the shoe, and a vibration exciter 8 for providing an impact effect.

Referring to fig. 3, a schematic diagram of a bracket simulating a human foot skeleton structure is shown, wherein a counterweight platform 3 is connected with the bracket 4 simulating the human foot skeleton structure through a triangular structure, the triangular structure is connected and fixed through three bolts 4-1, 4-2 and 4-5, wherein the bolt 4-2 is in a sliding groove capable of sliding up and down, and the human foot 4-3 is fixed with the whole structure through the bolt 4-4.

Referring to fig. 4, in the schematic diagram of the detection results, signal 1 is a sole signal, signal 2 is an in-shoe signal, the peak-to-peak value average values of the two signals in a period of time (the maximum value minus the minimum value in each period is the peak-to-peak value) are respectively calculated, and the peak-to-peak value average value of signal 2 is divided by the peak-to-peak value average value of signal 1, so that the damping effect of the sports shoe is obtained.

Brief description the utility model discloses a work: the method comprises the steps of putting sports shoes to be detected on a support 4 simulating a human foot skeleton structure, putting the sports shoes on a support structure 7 for placing the sports shoes, adjusting three bolts of 4-1, 4-2 and 4-5 according to the actual sole height to ensure that the support 4 is installed in the vertical direction and is connected with a balance weight platform at a right angle, connecting the balance weight platform 3 with a stabilizing rack 1 through a linear guide rail 2 and a linear guide rail 5, and placing a proper balance weight on the balance weight platform and fixing the balance weight. One acceleration sensor is attracted to the sole (upper surface of support structure 7) by a magnet and the other acceleration sensor is attracted to the inside of the shoe (on the foot of the skeletal structure support 4 simulating a human foot) by a magnet. The signal generator generates pulse, square wave, sine and other waveforms, the proper power amplifier multiple is adjusted, the vibration exciter is driven, and the positions of the acceleration sensor and the vamp are adjusted to ensure that the acceleration sensor and the vamp do not vibrate (generate noise). The in-shoe acceleration sensor obtains vibration information after shock absorption, the sole acceleration sensor obtains original vibration information, peak-to-peak value comparison of signals of the two sensors is carried out, and 5 times of data are collected to serve as a judgment basis, so that shock absorption characteristics of sports shoes can be accurately tested.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any person skilled in the art can make some changes or modifications to equivalent embodiments by utilizing the above-mentioned technical contents without departing from the technical scope of the present invention, but all those simple modifications, equivalent changes and modifications made to the above embodiments by the technical matters of the present invention still fall within the technical scope of the present invention.

Claims

1. A sports shoe shock absorption testing device is characterized by comprising a signal generator, a power amplifier, a vibration exciter for providing an impact effect, a supporting structure for placing shoes, a stabilizing frame, a balance weight platform, a bracket for simulating a human foot skeleton structure, an acceleration sensor for testing the shock absorption of sports shoes and a signal acquisition system; the balance weight platform and the support simulating the human foot skeleton structure are connected through the support with the sliding groove, the balance weight platform is kept perpendicular to the guide rail by adjusting the angle of the triangular structure, the balance weight platform is screwed up by threads after being adjusted to a preset angle, and the stabilizing frame is connected with the balance weight platform through the linear guide rail to ensure that the vibration vibrates up and down along the vertical direction; the acceleration sensor is respectively arranged in the sports sole and the sports shoe.

2. A sports shoe cushioning test device according to claim 1, wherein: different mass blocks are fixed on the counterweight placing platform to simulate the effects of different weights.

3. The athletic shoe cushioning test device of claim 1, wherein: the bottom of the bracket simulating the human foot skeleton structure is a support simulating the human foot shape, so that the bottom surface of the bracket is in contact with the sports shoes, namely the middle part is hollow, and the front part and the back part are in contact.