Shock resistance detection device based on sports protector

Abstract

The invention discloses an impact resistance detection device based on a sports protector. The impact resistance detection device is characterized by comprising a detection mold table, a multidirectional deflection structure arranged around the detection mold table, and an impact structure arranged on the multidirectional deflection platform, wherein the impact structure comprises a guide cylinder facing the detection die table and a piston plate connected in the guide cylinder in an elastic guiding manner, the center of the piston plate is connected with an impact shaft, the impact shaft extends out of the guide cylinder, the tail end of the impact shaft is connected with an impact hammer, the guide cylinder is provided with a winch, and the winch is connected with the impact hammer. The winch is connected with an impact motor through a clutch and connected with the piston plate through a movable pulley. The invention aims to provide an anti-impact detection device based on a sports protector. The device is provided with a multi-directional deflection structure, so that the deflection movement of the sports protector in a plurality of planes can be simulated. Meanwhile, in combination with an impact structure, impact testing is carried out on the to-be-tested protector installed on the detection mold table.

Description

Technical Field

[0001] The present invention relates to the technical field of protective gear detection, and in particular to an anti-impact detection device based on sports protective gear. Background Art

[0002] Exercise, as an effective form of physical exercise, not only significantly enhances physical fitness, strengthens muscles and bones, but also effectively improves cardiopulmonary function, promotes blood circulation, and enhances cardiopulmonary endurance. However, due to the inherent intensity and diversity of sports, as well as the unique techniques and skills required of different sports, exercise inevitably carries certain risks, which can easily lead to various accidental injuries. To prevent or reduce the occurrence of such sports injuries, athletes and sports enthusiasts generally wear sports protective gear around key areas such as joints and the head. These protective gear are specifically designed and manufactured to protect athletes from or mitigate injuries during exercise. They come in a wide variety, including but not limited to helmets, knee pads, elbow pads, wrist guards, and ankle guards. Through scientific design and material selection, these protective gear effectively absorbs and disperses the impact forces generated during exercise, reducing direct impact and injury to the body, thereby enhancing sports safety. These protective gear are particularly common in high-risk sports such as football, basketball, skateboarding, and cycling, becoming indispensable protective equipment for athletes.

[0003] After searching, it was found that the utility model patent with authorization announcement number CN211626863U discloses a helmet absorption collision tester. The tester includes a base and an electric control box. The base is provided with a support frame, a protective fence, a test anvil and a falling device. The test anvil is located on the base and in the protective fence. A horizontal platform frame is provided on the upper end of the support frame. A reinforcement support component and a wall reinforcement support are also provided outside the support frame. The horizontal platform frame, the falling device and the electric control box are electrically connected. By adopting an intelligent control device, this scheme can control the height and force of the helmet collision test anvil in real time, conduct multiple groups of experimental controls, and improve the accuracy of the experiment. The sensor on the helmet and the data processor in the control device can detect the data after the helmet hits the test anvil at different accelerations and heights, so as to understand the helmet's ability to withstand the impact and absorption of external gravity, improve the stability of the helmet, and extend the service life of the helmet.

[0004] However, given that sports protective gear may be subjected to random impacts from various directions and locations during actual use, there is an urgent need to simulate the impact of sudden impacts on sports protective gear in specific usage scenarios to identify potential weak areas. However, existing solutions lack a reasonable solution to this problem. Based on this, this application proposes an impact resistance detection device for sports protective gear. Summary of the Invention

[0005] The present invention aims to provide an impact resistance testing device for sports protective gear. This device, equipped with a multi-directional deflection structure, can simulate the deflection motion of sports protective gear in multiple planes. Furthermore, in conjunction with the impact structure, impact testing can be performed on the protective gear mounted on a test platform. This approach aims to address the existing lack of effective simulations of sudden impact tests for sports protective gear, identify potential weak spots, and thus improve the safety performance of sports protective gear.

[0006] To achieve the above-mentioned objectives, the present invention provides an impact resistance detection device based on sports protective gear, characterized in that it includes a detection mold platform, a multi-directional deflection structure arranged around the detection mold platform, and an impact structure arranged on the multi-directional deflection platform; wherein: the impact structure includes a guide cylinder facing the detection mold platform and a piston plate elastically guided and connected to the guide cylinder, the center of the piston plate is connected to an impact shaft, the impact shaft extends out of the guide cylinder and is connected to an impact hammer at its end, and a capstan is provided on the guide cylinder, the capstan is connected to the impact motor through a clutch on the one hand, and is connected to the piston plate through a movable pulley on the other hand; the clutch is controlled to be in an engaged state, the impact motor drives the capstan to tighten, so that the piston plate is displaced to store elastic potential energy; when the clutch is disconnected, the piston plate is quickly reset under the action of the elastic potential energy to drive the impact hammer to impact the protective gear to be tested mounted on the detection mold platform.

[0007] Furthermore, the multi-directional deflection structure includes an xy plane deflection assembly driven by a first deflection motor, a yz plane deflection assembly driven by a second deflection motor is arranged on the xy plane deflection assembly, an xz plane deflection assembly driven by a third deflection motor is arranged on the yz plane deflection assembly, and the impact structure is arranged on the xz plane deflection assembly.

[0008] Furthermore, the xy plane deflection assembly includes a turntable supported by a thrust bearing, a gap is reserved in the center of the turntable so as to not contact the detection mold platform, and a gear ring is concentrically arranged at the bottom of the turntable, a first gear is meshed in the gear ring, and the first gear is connected to the output shaft of the first deflection motor.

[0009] Furthermore, the YZ plane deflection assembly includes a rotating shaft extending radially along the turntable, the rotating shaft is supported on the turntable through a bearing seat, and is connected to the output shaft of the second deflection motor.

[0010] Furthermore, the xz plane deflection structure includes an arc-shaped guide rail, a sliding seat is connected to the arc-shaped guide rail, the sliding seat is driven by a third deflection motor, and the impact structure is detachably mounted on the sliding seat.

[0011] Furthermore, the sliding seat is constrained on the arc-shaped guide rail by two sets of guide wheels arranged opposite to each other.

[0012] Furthermore, an arc-shaped rack is provided on the arc-shaped guide rail along its arc-shaped contour, the third deflection motor is provided on the sliding seat, and a second gear meshing with the arc-shaped rack is connected to its output shaft.

[0013] Furthermore, the rotating shaft adopts a two-section design, and the two are connected by the arc guide rail.

[0014] Furthermore, the first deflection motor, the second deflection motor and the third deflection motor are all worm gear reduction motors.

[0015] Furthermore, a return spring is provided between the bottom of the guide cylinder and the piston plate.

[0016] Compared with the prior art, the present invention has the following remarkable effects:

[0017] (1) By configuring a multi-directional deflection structure, the present invention can accurately simulate the deflection motion of sports protective gear in three different planes: xy, xz, and yz, thereby comprehensively evaluating the performance of the protective gear when impacted in different directions and angles;

[0018] (2) By utilizing the impact structure, the present invention can generate a controllable and stable impact force, ensuring the accuracy and reliability of the test results. This technology is particularly suitable for rigorous testing of key protective gear such as head protectors, helping to identify potential weak areas and providing strong data support and theoretical basis for further optimization and improvement of protective gear;

[0019] (3) The device fully considers the complex impact conditions that sports protective gear may be subjected to in actual use. By simulating deflection motion in multiple planes, it achieves a comprehensive and multi-angle impact resistance evaluation of the protective gear. The coordinated operation of the three plane deflection components (xy, xz, and yz) provides a variety of test scenarios for impact testing, enhancing the comprehensiveness and practicality of the test. In addition, the application of precision transmission components ensures the stability and accuracy of the device operation, further improving the reliability of the test results.

[0020] In summary, the present invention not only solves the deficiencies in the prior art, but also provides a new solution for improving the safety performance of sports protective gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 1 is a schematic diagram of the overall structure of the anti-impact detection device in Example 1 (I);

[0023] Figure 2 1 is a schematic diagram of the internal structure of the impact resistance detection device in Example 1 (I);

[0024] Figure 3 Schematic diagram of the internal structure of the impact resistance detection device in Example 1 (II);

[0025] Figure 4 Schematic diagram of the overall structure of the anti-impact detection device in Example 1 (II);

[0026] Figure 5 Schematic diagram of the overall structure of the anti-impact detection device in Example 1 (3);

[0027] Figure 6 Schematic diagram of the overall structure of the anti-impact detection device in Example 1 (four);

[0028] Figure 7 Schematic diagram of the overall structure of the anti-impact detection device in Example 1 (V);

[0029] Figure 8 yes Figure 7 A partial enlarged view of part A in the middle;

[0030] Numbers in the figure: 1-detection mold table, 2-multi-directional deflection structure, 3-impact structure, 301-guide cylinder, 302-piston plate, 303-impact shaft, 304-impact hammer, 305-capstan, 306-clutch, 307-movable pulley, 308-return spring, 309-impact motor, 201-xy plane deflection assembly, 202-yz plane deflection assembly, 203-xz plane deflection assembly, 2 04-first deflection motor, 205-second deflection motor, 206-third deflection motor, 2011-thrust bearing, 2012-turntable, 2013-gap, 2014-gear ring, 2015-first gear, 2021-rotating shaft, 2022-bearing seat, 2031-arc guide rail, 2032-sliding seat, 2033-guide wheel, 2034-arc rack, 2035-second gear. DETAILED DESCRIPTION

[0031] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0032] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0033] Figures 1 to 8 The first embodiment of the present invention is shown: an impact resistance testing device based on sports protective gear, comprising a testing mold platform 1, a multi-directional deflection structure 2 arranged around the testing mold platform 1, and an impact structure 3 arranged on the multi-directional deflection platform; wherein: the impact structure 3 includes a guide cylinder 301 facing the testing mold platform 1 and a piston plate 302 elastically guided and connected to the guide cylinder 301, the center of the piston plate 302 is connected to an impact shaft 303, the impact shaft 303 extends out of the guide cylinder 301 and is connected to an impact hammer at its end 304. A capstan 305 is mounted on the guide cylinder 301. The capstan 305 is connected to the impact motor 309 via a clutch 306 and to the piston plate 302 via a movable pulley 307. When the clutch 306 is engaged, the impact motor 309 tightens the capstan 305, causing the piston plate 302 to shift and store elastic potential energy. When the clutch 306 is disengaged, the piston plate 302 quickly returns to its original position due to the elastic potential energy, driving the impact hammer 304 to impact the protective gear to be tested mounted on the test mold platform 1. To further enhance the stability and flexibility of the impact structure 3, guide strips are provided on the wall of the guide cylinder 301. The edges of the piston plate 302 are embedded in these strips, ensuring linear movement of the piston plate 302 within the guide cylinder 301 and preventing it from shifting or shaking. Furthermore, the design of the guide strips constrains the piston plate 302 during movement, thereby improving the rigidity and durability of the entire impact structure 3.

[0034] To precisely control the impact force, the clutch 306 is an electromagnetic clutch 306. By controlling the energized and de-energized states of the electromagnet, the clutch 306 can be quickly and accurately engaged and disengaged. Furthermore, the use of the electromagnetic clutch 306 simplifies the design of the control system and improves control reliability and response speed.

[0035] To monitor the impact force and velocity, the hammer 304 is equipped with a pressure sensor and a velocity sensor. The pressure sensor is used to detect the impact force exerted by the hammer 304 on the protective gear under test in real time, while the velocity sensor is used to monitor the impact velocity of the hammer 304. These two sensors accurately capture key parameters during the impact process, providing a reliable basis for subsequent data analysis and protective gear performance evaluation.

[0036] To improve testing efficiency and accuracy, the present invention also features a control system. This control system includes a processor, an input device, and an output device. The processor receives commands from the input device and controls the operation of each motor and the switching of clutch 306 accordingly. The output device displays test results and status information, making it easier for users to observe and record them. This control system allows users to easily set test parameters, start the test program, and view test results in real time, significantly improving testing efficiency and accuracy.

[0037] In specific implementation, the multi-directional deflection structure 2 includes an xy-plane deflection assembly 201 driven by a first deflection motor 204, a yz-plane deflection assembly 202 driven by a second deflection motor 205 mounted on the xy-plane deflection assembly 201, an xz-plane deflection assembly 203 driven by a third deflection motor 206 mounted on the yz-plane deflection assembly 202, and the impact structure 3 mounted on the xz-plane deflection assembly 203. The design of the xy-plane deflection assembly 201, the yz-plane deflection assembly 202, and the xz-plane deflection assembly 203 enables the entire device to simulate various complex impact conditions that sports protective gear may encounter during actual sports. The first deflection motor 204 drives the xy-plane deflection assembly 201, allowing the impact structure 3 to deflect within the xy plane, simulating rotation or tilting of the protective gear within the horizontal plane. The second deflection motor 205 drives the yz-plane deflection assembly 202, allowing the impact structure 3 to deflect within the yz plane, simulating vertical tilt or flipping of the protective gear. The third deflection motor 206 drives the xz-plane deflection assembly 203, allowing the impact structure 3 to deflect within the xz plane, further enriching the test scenarios and improving the comprehensiveness and practicality of the test.

[0038] like Figure 4As shown, in this embodiment, the xy plane deflection assembly 201 includes a turntable 2012 supported by a thrust bearing 2011. A gap 2013 is reserved at the center of the turntable 2012 to prevent contact with the detection mold platform 1. A gear ring 2014 is also concentrically arranged at the bottom of the turntable 2012. A first gear 2015 is meshed in the gear ring 2014, and the first gear 2015 is connected to the output shaft of the first deflection motor 204. The support of the turntable 2012 by the thrust bearing 2011 ensures its stability and accuracy during rotation. At the same time, the gap 2013 in the center of the turntable 2012 avoids direct contact with the detection mold platform 1, reducing friction and interference, and improving the accuracy of the test. The meshing design of the gear ring 2014 and the first gear 2015 enables the first deflection motor 204 to accurately drive the turntable 2012.

[0039] from Figure 5 Specifically, the YZ-plane deflection assembly 202 includes a rotating shaft 2021 extending radially along the turntable 2012. The rotating shaft 2021 is supported on the turntable 2012 via a bearing block 2022 and is connected to the output shaft of the second deflection motor 205. The support of the rotating shaft 2021 on the turntable 2012 via the bearing block 2022 ensures its stability and flexibility during rotation. Furthermore, the rotating shaft 2021 is connected to the output shaft of the second deflection motor 205, enabling the second deflection motor 205 to precisely drive the YZ-plane deflection assembly 202.

[0040] from Figures 6 to 8 Specifically, the xz-plane deflection structure includes a curved guide rail 2031, to which a sliding seat 2032 is guided and connected. The sliding seat 2032 is driven by a third deflection motor 206, and the impact structure 3 is detachably mounted on the sliding seat 2032. The design of the curved guide rail 2031 and sliding seat 2032 in the xz-plane deflection assembly 203 enables deflection of the impact structure 3 within the xz plane. The sliding seat 2032, driven by the third deflection motor 206, moves along the curved guide rail 2031, thereby achieving deflection within the xz plane. Preferably, the sliding seat 2032 is constrained to the curved guide rail 2031 by two sets of guide wheels 2033 disposed opposite each other. An arc-shaped rack 2034 is provided along the arc-shaped contour of the arc-shaped guide rail 2031. The third deflection motor 206 is mounted on the sliding base 2032, and its output shaft is connected to a second gear 2035 that meshes with the arc-shaped rack 2034. The design of the guide wheel 2033 and the arc-shaped rack 2034 further enhances the stability and precision of the sliding base 2032 during movement.

[0041] In this embodiment, the rotating shaft 2021 is designed in two sections, and the two sections are connected by the arc guide rail 2031 .

[0042] This two-stage design of the rotating shaft 2021 not only enhances the stability of the structure, but also enables the yz plane deflection assembly 202 and the xz plane deflection assembly 203 to work more smoothly together, ensuring the fluency and accuracy of the entire device during multi-plane deflection. Furthermore, the first deflection motor 204, the second deflection motor 205 and the third deflection motor 206 all use worm gear reduction motors. The worm gear reduction motor is used as the driving source for the first deflection motor 204, the second deflection motor 205 and the third deflection motor 206 because the worm gear reduction motor has a self-locking function and can maintain the current position unchanged when the power is off, effectively preventing the deflection assembly from accidentally rotating due to unexpected situations, thereby improving the safety and stability of the test process. In addition, the worm gear reduction motor also has the advantages of a large transmission ratio, a large output torque, and low noise, and is very suitable for use in the impact resistance detection device of the present invention.

[0043] In specific application scenarios, a return spring 308 is installed between the bottom of the guide cylinder 301 and the piston plate 302. The return spring 308 is designed to assist the piston plate 302 in quickly returning to its initial position after the impact hammer 304 completes its impact, preparing for the next impact. This not only improves the cycle efficiency of the impact mechanism 3 but also ensures test continuity and stability. The stiffness and preload of the return spring 308 can be adjusted according to actual test requirements to meet the test requirements of different impact forces and frequencies.

[0044] Furthermore, to further enhance the durability and reliability of the device, all key components, such as the curved guide rail 2031, sliding seat 2032, guide wheel 2033, and gears, are made of high-strength, wear-resistant materials. These materials not only offer excellent wear resistance but also maintain excellent mechanical properties even under prolonged, high-load operation, significantly extending the device's service life.

[0045] To ensure smooth movement between the curved guide rail 2031 and the sliding seat 2032, the surface of the curved guide rail 2031 undergoes precision grinding to achieve exceptional smoothness. This treatment not only reduces frictional resistance during movement of the sliding seat 2032 but also improves movement accuracy and stability. Furthermore, the contact surface between the sliding seat 2032 and the curved guide rail 2031 is constructed of wear-resistant material, further enhancing durability and reliability.

[0046] To precisely control the position of the sliding seat 2032, this embodiment incorporates a position sensor at one end of the curved guide rail 2031. This position sensor monitors the position of the sliding seat 2032 in real time and provides feedback to the control system. Based on this position information, the control system precisely controls the operation of the third deflection motor 206, thereby achieving precise adjustment of the position of the sliding seat 2032. This design not only improves test accuracy but also provides more reliable support for subsequent data analysis and protective gear performance evaluation.

[0047] In specific application scenarios, the present invention also allows for flexible configuration of test parameters based on actual needs. For example, test parameters such as impact force, impact velocity, and deflection angle can be adjusted based on the type and size of the protective gear being tested and its intended use scenario. By adjusting these parameters, a test scenario closer to actual use can be simulated, leading to a more accurate assessment of the protective gear's impact resistance.

[0048] Furthermore, to further improve testing efficiency and accuracy, the present invention can also be equipped with a data recording and analysis system. This system automatically records key parameters during the test, such as impact force, impact velocity, and deflection angle, and conducts in-depth analysis and processing. Through this data recording and analysis system, users can intuitively understand the performance of the protective gear under test during the impact test, providing strong data support for subsequent protective gear improvement and optimization.

[0049] In summary, by configuring the multi-directional deflection structure 2, the present invention can accurately simulate the deflection movement of sports protective gear in three different planes (xy, xz, and yz), thereby comprehensively evaluating the performance of the protective gear when subjected to impact in different directions and angles. Utilizing the impact structure 3, the present invention can generate a controllable and stable impact force, ensuring the accuracy and reliability of the test results. This technology is particularly suitable for rigorous testing of protective gear in key areas such as head protectors, helping to identify potential weak areas and providing strong data support and theoretical basis for further optimization and improvement of the protective gear. The device fully considers the complex impact conditions that sports protective gear may suffer in actual use, and by simulating deflection movement in multiple planes, it achieves a full-scale, multi-angle impact resistance evaluation of the protective gear. The coordinated operation of the three plane deflection components (xy, xz, and yz) provides a variety of test scenarios for impact testing, enhancing the comprehensiveness and practicality of the test. In addition, the use of precision transmission elements ensures the stability and accuracy of the device operation, further improving the reliability of the test results. In summary, the invention not only solves the shortcomings of the existing technology, but also provides a new solution for improving the safety performance of sports protective gear.

[0050] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of the rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. An anti-impact detection device based on sports protective gear, characterized by: It includes a detection mold platform, a multi-directional deflection structure arranged around the detection mold platform, and an impact structure arranged on the multi-directional deflection platform; wherein: the impact structure includes a guide cylinder facing the detection mold platform and a piston plate elastically guided and connected to the guide cylinder, the center of the piston plate is connected to an impact shaft, the impact shaft extends out of the guide cylinder and is connected to an impact hammer at its end, and a capstan is provided on the guide cylinder, the capstan is connected to the impact motor through a clutch on the one hand, and is connected to the piston plate through a movable pulley on the other hand; the clutch is controlled to be in an engaged state, the impact motor drives the capstan to tighten, so that the piston plate is displaced to store elastic potential energy; when the clutch is disconnected, the piston plate is quickly reset under the action of the elastic potential energy to drive the impact hammer to impact the protective gear to be tested installed on the detection mold platform.

2. The anti-impact detection device based on sports protective gear according to claim 2, characterized in that: The multi-directional deflection structure includes an xy plane deflection assembly driven by a first deflection motor, a yz plane deflection assembly driven by a second deflection motor is arranged on the xy plane deflection assembly, an xz plane deflection assembly driven by a third deflection motor is arranged on the yz plane deflection assembly, and the impact structure is arranged on the xz plane deflection assembly.

3. The anti-impact detection device based on sports protective gear according to claim 3 is characterized in that: The xy plane deflection assembly includes a turntable supported by a thrust bearing, a gap is reserved in the center of the turntable so as not to contact the detection mold platform, and a gear ring is concentrically arranged at the bottom of the turntable, a first gear is meshed in the gear ring, and the first gear is connected to the output shaft of the first deflection motor.

4. The anti-impact detection device based on sports protective gear according to claim 4, characterized in that: The YZ plane deflection assembly includes a rotating shaft extending radially along the turntable. The rotating shaft is supported on the turntable through a bearing seat and is connected to the output shaft of the second deflection motor.

5. The anti-impact detection device based on sports protective gear according to claim 4, characterized in that: The xz plane deflection structure includes an arc-shaped guide rail, a sliding seat is connected to the arc-shaped guide rail, the sliding seat is driven by a third deflection motor, and the impact structure is detachably mounted on the sliding seat.

6. The anti-impact detection device based on sports protective gear according to claim 5, characterized in that: The sliding seat is constrained on the arc-shaped guide rail by two sets of guide wheels arranged opposite to each other.

7. The anti-impact detection device based on sports protective gear according to claim 6, characterized in that: An arc-shaped rack is provided on the arc-shaped guide rail along its arc-shaped contour. The third deflection motor is provided on the sliding seat, and a second gear meshing with the arc-shaped rack is connected to its output shaft.

8. The anti-impact detection device based on sports protective gear according to any one of claims 4 to 7, characterized in that: The rotating shaft adopts a two-section design, and the two are connected by the arc guide rail.

9. The anti-impact detection device based on sports protective gear according to any one of claims 2 to 7, characterized in that: The first deflection motor, the second deflection motor, and the third deflection motor all adopt worm gear reduction motors.

10. The anti-impact detection device based on sports protective gear according to any one of claim 9, characterized in that: A return spring is arranged between the bottom of the guide cylinder and the piston plate.

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