Device for testing shockproof performance of sports bra in simulated high-speed motion state

Abstract

The utility model discloses a device for testing the shockproof performance of a sports bra in a simulated high-speed motion state, which relates to the field of textile detection equipment, and comprises a device shell, and a transmission driving mechanism, a vertical motion structure, a horizontal motion structure, a crank arm and a connecting bearing which are arranged on the device shell, the crank arm is used for adjusting the displacement of the motion amplitude, one end of the connecting bearing is in transmission connection with the crank arm, the other end of the connecting bearing is fixed on the vertical motion structure or the horizontal motion structure, the vertical motion structure and the horizontal motion structure are both provided with object placing tables, and the object placing tables are used for placing breast models; the device further comprises a control case. The motion mode, the motion frequency, the motion amplitude and the motion time can be autonomously controlled, high-speed motion can be simulated to the maximum extent, and the effect that the test process of the shockproof performance of the sports bra better fits the actual use condition is achieved.

Description

Technical Field

[0001] The utility model relates to the field of textile testing equipment, and more specifically, to a device for testing the shockproof performance of sports bras under a simulated high-speed motion state. Background Art

[0002] With social progress and the widespread popularity of sports, the proportion of women participating in physical exercise has increased significantly, leading to the emergence of specialized products such as sports bras. The core function of a sports bra is to provide support for the breasts during exercise, effectively reducing movement and displacement, thereby protecting them from muscle and ligament injuries. Shockproofing, a key quality indicator for sports bras, is crucial for ensuring effective protection during high-speed exercise.

[0003] However, despite the continued expansion of the sports bra industry and rising consumer spending, testing methods for their shockproofing effectiveness remain relatively underdeveloped and incomplete. Specifically, unified standards for testing the shockproofing effectiveness of sports bras have yet to be established domestically or internationally. Existing testing methods primarily rely on recruiting volunteers to perform actual exercises and assessing shockproofing effectiveness through subjective evaluation. This approach not only results in significant uncertainty but also is costly and presents significant challenges in recruiting suitable test subjects.

[0004] In addition, although some existing testing instruments on the market attempt to indirectly reflect the shock-absorbing effect of bras by measuring the shock-absorbing force of breast models under specific movements, this method cannot accurately characterize the displacement of the breasts during actual movement. Therefore, the accuracy and reliability of its test results remain to be discussed. Utility Model Content

[0005] To address this problem in practical applications, the present invention aims to provide a device for testing the shockproof performance of sports bras under simulated high-speed exercise conditions. The device can autonomously control the exercise mode, exercise frequency, and exercise amplitude to more accurately simulate the shockproof effect of sports bras on breasts under high-speed exercise conditions. The specific solution is as follows:

[0006] A device for testing the shockproof performance of a sports bra under simulated high-speed motion conditions, characterized by comprising a device housing and a transmission drive mechanism, a vertical motion structure, a horizontal motion structure, a crank arm, and a connecting bearing mounted on the device housing, wherein: the transmission drive mechanism is connected to the crank arm, the crank arm is used to adjust the displacement of the motion amplitude; one end of the connecting bearing is connected to the crank arm, and the other end is fixed to the vertical motion structure or the horizontal motion structure; both the vertical motion structure and the horizontal motion structure are provided with a storage platform, and the storage platform is used to place a breast model;

[0007] Also includes a control chassis.

[0008] Furthermore, the transmission drive mechanism includes a base plate, a motor and at least one transmission shaft, a bearing group, and a belt drive group. The motor is installed on the base plate, the motor transmission shaft is connected to the transmission shaft through the belt drive group, and the transmission shaft is connected to the bearing group.

[0009] Furthermore, the crank arm includes a main body, a main shaft, a tooth rod, and a moving block. The main shaft is provided on one side of the tooth rod, and the moving block is provided on the other side. One end of the main shaft is connected to the tooth rod through the main body, and the moving block is connected to the connecting bearing by transmission.

[0010] Furthermore, a plurality of positioning holes are evenly spaced along the vertical direction of the crank arm body on a side facing the main shaft. The main shaft is fixed to the tooth rod through one of the positioning holes, and the distance between each two positioning holes is 2 cm.

[0011] The range of adjustment of the crank arm movement amplitude is 0-20cm.

[0012] Furthermore, a fixing plate is provided on the other side of the tooth rod, the movable block is connected to the tooth rod via the fixing plate, and a hand-tightened nut is provided at the bottom of the tooth rod.

[0013] Furthermore, the vertical motion structure includes a vertical guide rail, a guide rail fixing part, a guide rail moving part and a vertical motion storage platform. The vertical guide rail is installed on the base plate through the guide rail fixing part. The guide rail moving part can be movably installed on the vertical guide rail. The vertical motion storage platform is connected to the top of the guide rail moving part.

[0014] Furthermore, the horizontal motion structure includes a horizontal guide rail, a horizontal motion storage platform, a horizontal vibration connecting piece and a flange slider. The horizontal guide rail is installed on the base plate. The horizontal motion storage platform is slidably connected to the horizontal guide rail via the flange slider. One end of the horizontal vibration connecting piece is fixed to one end of the horizontal motion storage platform.

[0015] Furthermore, one end of the connecting bearing is transmission-connected to the moving block, and the other end is fixed to one end of the guide rail moving part or the horizontal vibration connecting part via bolts.

[0016] Furthermore, a load of 500-1000kg is configured under the bottom plate of the transmission drive mechanism.

[0017] Furthermore, the control chassis is provided with a motion controller, a timer, and a counter for adjusting the motion time, the number of motions, and the motion frequency, wherein the motion frequency adjustment range is 0-200 times / min.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] The utility model provides a device for testing the shockproof performance of a sports bra under simulated high-speed motion conditions, which can independently control the motion mode, motion frequency, motion amplitude and motion time, and can simulate high-speed motion to the greatest extent, so that the testing process of the shockproof performance of the sports bra is more in line with actual usage conditions and more scientific and reasonable; the overall structure of the device is simple, convenient and practical, and has wide application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall exterior of the utility model;

[0021] Figure 2 This is a front view of the utility model (device housing omitted);

[0022] Figure 3 This is a schematic diagram of the entire interior of the present invention (omitting the control chassis and device housing);

[0023] Figure 4 This is a schematic diagram of the structure of the transmission drive mechanism and the vertical motion structure in the present utility model;

[0024] Figure 5 It is a structural diagram of the horizontal motion structure in the utility model;

[0025] Figure 6 This is a schematic structural diagram of the crank arm in the utility model;

[0026] Figure 7 It is a structural diagram of the connecting bearing in the utility model.

[0027] Reference numerals: 1, device housing;

[0028] 2. Transmission drive mechanism; 21. Base plate; 22. Motor; 23. Mounting seat; 24. Transmission shaft; 25. First belt pulley; 26. Second belt pulley; 27. Third belt pulley; 28. Fourth belt pulley; 29. ​​Bearing assembly;

[0029] 3. Vertical motion structure; 31. Vertical guide rail; 32. Guide rail fixing part; 33. Guide rail moving part; 34. Vertical motion storage platform;

[0030] 4. Horizontal motion structure; 41. Horizontal guide rail; 42. Horizontal motion storage platform; 43. Horizontal vibration connector; 44. Flange slider;

[0031] 5. Crank arm; 51. Main body; 52. Spindle; 53. Threaded rod; 54. Moving block; 55. Positioning hole; 56. Fixing plate; 57. Thumb nut;

[0032] 6. Connect bearings;

[0033] 7. Control chassis. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] like Figure 1-3 As shown, a device for testing the shockproof performance of a sports bra under a simulated high-speed motion state includes a device shell 1 and a transmission drive mechanism 2, a vertical motion structure 3, a horizontal motion structure 4, a crank arm 5, a connecting bearing 6 installed on the device shell 1, and also includes a control chassis 7.

[0036] Among them: the transmission drive mechanism 2 is connected to the crank arm 5, which is used to adjust the displacement of the motion amplitude. One end of the connecting bearing 6 is connected to the crank arm 5, and the other end is fixed to the vertical motion structure 3 or the horizontal motion structure 4. The vertical motion structure 3 is used to achieve vertical movement of the object to be measured, and the horizontal motion structure 4 is used to achieve horizontal movement of the object to be measured. Both the vertical motion structure 3 and the horizontal motion structure 4 are provided with a storage platform, namely the vertical motion storage platform 34 and the horizontal motion storage platform 42, which are used to place the breast model.

[0037] Specifically, if Figure 3-4 As shown, the transmission drive mechanism 2 includes a base plate 21, a motor 22, a mounting seat 23, a transmission shaft 24, four bearing groups 29, and two belt transmission groups. The base plate 21 is installed on the device housing 1, and the motor 22 is installed on the base plate 21. The transmission shaft 24 is arranged in a direction parallel to the transmission shaft 24 of the motor 22. Every two bearing groups 29 are arranged in a direction parallel to the transmission shaft 24 of the motor 22, wherein two bearing groups 29 are close to the motor 22, and the other two bearing groups 29 are away from the motor 22. The transmission shaft 24 is transmission-connected to the two bearing groups 29 close to the motor 22; each bearing group 29 includes a bearing and The bearing seat (not shown in the figure) is fixed on the mounting seat 23, and the bearing is connected to the bearing seat; each belt drive group includes two pulleys, including a first pulley 25, a second pulley 26, a third pulley 27, and a fourth pulley 28. One end of the drive shaft of the motor 22 is connected to the first pulley 25, and one end of the drive shaft 24 is connected to the second pulley 26. The first pulley 25 and the second pulley 26 are connected via a belt drive, and the other end of the drive shaft 24 is connected to the third pulley 27. The fourth pulley 28 is used in conjunction with the third pulley 27 and is located between the two bearing groups 29 away from the motor 22.

[0038] like Figure 3 and Figure 6As shown, the crank arm 5 includes a main body 51, a main shaft 52, a tooth rod 53, and a moving block 54. The main shaft 52 is provided on one side of the tooth rod 53, and the moving block 54 is provided on the other side. One end of the main shaft 52 is connected to the tooth rod 53 through the main body 51. The main shaft 52 is connected to the two bearing groups 29 away from the motor 22 through a transmission mechanism. The fourth belt pulley 28 is connected to the main shaft 52, and the fourth belt pulley 28 is connected to the third belt pulley 27 through a belt. The moving block 54 is connected to the connecting bearing 6 through a transmission mechanism. The main shaft 52 can change the amplitude by changing its vertical position on the tooth rod 53. When the main shaft 52 is installed in the vertical center position of the tooth rod 53, the displacement is minimum. Moving to both sides of the tooth rod 53 means the amplitude increases. The moving block 54 can also change its vertical position on the tooth rod 53. By changing the position of the moving block 54, the displacement can be further refined.

[0039] It should be noted that the belts mentioned above are not shown in the drawings.

[0040] like Figure 3-4 As shown, the vertical motion structure 3 includes a vertical guide rail 31, a guide rail fixing member 32, a guide rail moving member 33 and a vertical motion storage platform 34. The vertical guide rail 31 is vertically fixed to the base plate 21 via the guide rail fixing member 32. The guide rail moving member 33 can be mounted on the vertical guide rail 31 and can move back and forth vertically along the vertical guide rail 31. The vertical motion storage platform 34 is fixed to the top of the guide rail moving member 33, and the end of the guide rail moving member 33 near the bottom is fixed to the connecting bearing 6. The vertical motion storage platform 34 realizes vertical motion as the guide rail moving member 33 reciprocates vertically on the vertical guide rail 31.

[0041] like Figure 3 、 Figure 5 As shown, the horizontal motion structure 4 includes a horizontal guide rail 41, a horizontal motion platform 42, a horizontal vibration connector 43, and a flange slider 44. The horizontal guide rail 41 is fixed to the base plate 21, and the horizontal motion platform 42 is slidably connected to the horizontal guide rail 41 via the flange slider 44. One end of the horizontal vibration connector 43 is fixed to one end of the horizontal motion platform 42, and the other end is fixed to the connecting bearing 6. Preferably, two flange sliders 44 are provided side by side on the horizontal guide rail 41 to ensure smooth movement. The horizontal motion platform 42 achieves horizontal motion as it reciprocates horizontally on the horizontal guide rail 41.

[0042] like Figure 3 、 Figure 7 As shown, the connecting bearing 6 is a joint bearing, one end of which is connected to the bearing of the moving block 54, and the other end is fixed to one end of the guide rail moving part 33 or the horizontal vibration connecting part 43 by bolts, and can switch control between the vertical motion structure 3 and the horizontal motion structure 4.

[0043] More specifically:

[0044] The bottom plate 21 of the transmission drive mechanism 2 is integrally mounted on a fixed counterweight (not shown in the figure). The fixed counterweight has a load capacity of 500-1000 kg, which can increase the stability of the instrument during operation.

[0045] like Figure 3 and Figure 6 As shown, the spindle 52 changes position on the tooth rod 53 as follows: a plurality of positioning holes 55 are provided on the side of the tooth rod 53 facing the spindle 52, equidistantly spaced vertically along the spindle 53. The spindle 52 is secured to the tooth rod 53 via one of the positioning holes 55, with the spacing between each two positioning holes 55 being 2 cm. The spindle 52 is positioned at different heights to achieve vertical movement along the tooth rod 53. The spindle 52 at the exact center represents minimal displacement, while movement to the sides represents increased amplitude, with each positioning hole 55 representing a 2 cm displacement. The positioning holes 55 are used to control the rough displacement of the movement amplitude, and the crank arm movement amplitude adjustment range is 0-20 cm.

[0046] like Figure 3 and Figure 6 As shown, the movable block 54 changes position on the rod 53 by installing a fixed plate 56 on the other side of the rod 53. The movable block 54 is connected to the rod 53 via the fixed plate 56. A hand nut 57 is installed at the bottom of the rod 53. The hand nut 57 controls the position of the fixed plate 56 and the movable block 54, enabling accurate movement to within 1 cm. The movable block controls the precise movement amplitude.

[0047] like Figure 3 As shown, regarding the storage platform of the vertical motion structure 3 and the horizontal motion structure 4: different holes and detachable bolts are distributed on the storage platform, which can stably fix half-body models of different sizes.

[0048] The control box 7 includes a motion parameter control panel, a motion controller, a timer, and a counter for adjusting the motion time, number of motions, and motion frequency, wherein the motion frequency adjustment range is 0-200 times / min. It should be noted that the motion controller, timer, and counter are all prior art and this application does not involve any improvement thereto, so their structure and working principle will not be described in detail here.

[0049] The working principle of this application instrument is:

[0050] When vertical motion is selected, the breast model is first fixed on the vertical motion platform 34. At this time, the connecting bearing 6 is fixed to the guide rail moving member 33 on the vertical motion structure 3 by bolts. Then the motor 22 on the transmission drive mechanism 2 is activated, and the transmission shaft 24 is driven to move via the belt, the first belt pulley 25, and the second belt pulley 26. At the same time, the third belt pulley 27, the fourth belt pulley 28, and the main shaft 52 are driven to move. The movement of the main shaft 52 causes the tooth rod 53 to move. Under the action of the connecting bearing 6, the vertical motion structure 3 is activated, so that the breast model thereon is in a vertical motion state.

[0051] When horizontal motion is selected, the breast model is first fixed to the horizontal motion platform 42. The connecting bearing 6 is then bolted to the horizontal vibration connector 43 on the horizontal motion structure 4. The transmission drive mechanism 2 then operates, causing the main shaft 52 thereon to move, causing the tooth rod 53 to move. Under the action of the connecting bearing 6, the horizontal motion structure 4 operates, causing the breast model thereon to be in a horizontal motion state.

[0052] When testing the shockproof performance of sports bras using the above-mentioned instrument, the steps are as follows:

[0053] S1. Choose the appropriate breast model according to the bra size;

[0054] S2. Fix the breast model on the vertical motion platform 34 and affix marking points to the fixed parts of the breast model; first select vertical motion, connect the bearing 6 and the guide rail moving member 33 on the vertical motion structure 3 and fix them with bolts;

[0055] S3, adjusting the installation position of the main shaft 52 of the crank arm 5 and / or the position of the moving block 54 to determine the movement amplitude;

[0056] S4. Input the exercise frequency and exercise time on the exercise parameter control panel of the control box 7;

[0057] S5. Turn on the instrument and put the breast model into motion;

[0058] S6. Using a motion capture system to record breast displacement coordinates when not wearing a bra;

[0059] S7. After putting on the bra again, test again under the same conditions and record the breast displacement coordinates when wearing the bra;

[0060] S8. Select horizontal motion again, connect the bearing 6 and the horizontal vibration connector 43 on the horizontal motion structure 4 with bolts, and repeat S3-S7.

[0061] It should be noted that the motion capture system can be implemented using existing technologies, such as using several cameras placed opposite the instrument to record the position coordinates of the reflective marking points. Since this application does not involve improvements to the motion capture system, its structure and working principle will not be described in detail here.

[0062] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A device for testing the shockproof performance of sports bras under simulated high-speed motion conditions, characterized in that: The device comprises a housing, a transmission drive mechanism, a vertical motion structure, a horizontal motion structure, a crank arm, and a connecting bearing mounted on the housing, wherein: the transmission drive mechanism is connected to the crank arm, and the crank arm is used to adjust the displacement of the motion amplitude; one end of the connecting bearing is connected to the crank arm, and the other end is fixed to the vertical motion structure or the horizontal motion structure; both the vertical motion structure and the horizontal motion structure are provided with a storage platform, and the storage platform is used to place a breast model; Also includes a control chassis.

2. The device for testing the shockproof performance of a sports bra under simulated high-speed motion according to claim 1, characterized in that: The transmission drive mechanism includes a base plate, a motor and at least one transmission shaft, a bearing group, and a belt transmission group. The motor is installed on the base plate, the motor transmission shaft is connected to the transmission shaft through the belt transmission group, and the transmission shaft is connected to the bearing group.

3. The device for testing the shockproof performance of a sports bra under simulated high-speed motion conditions according to claim 2, characterized in that: The crank arm includes a main body, a main shaft, a tooth rod, and a moving block. The main shaft is provided on one side of the tooth rod, and the moving block is provided on the other side. One end of the main shaft is connected to the tooth rod through the main body, and the moving block is transmission-connected to the connecting bearing.

4. The device for testing the shockproof performance of a sports bra under simulated high-speed motion conditions according to claim 3, characterized in that: The side of the tooth rod facing the main shaft is also provided with a plurality of positioning holes at equal intervals along its vertical direction. The main shaft is fixed to the tooth rod through one of the positioning holes, and the distance between each two positioning holes is 2 cm. The range of adjustment of the crank arm movement amplitude is 0-20cm.

5. The device for testing the shockproof performance of a sports bra under simulated high-speed motion conditions according to claim 3, characterized in that: A fixing plate is further provided on the other side of the tooth rod, the moving block is connected to the tooth rod via the fixing plate, and a hand-tightened nut is provided at the bottom of the tooth rod.

6. The device for testing the shockproof performance of a sports bra under simulated high-speed motion conditions according to claim 3, characterized in that: The vertical motion structure includes a vertical guide rail, a guide rail fixing part, a guide rail moving part and a vertical motion storage platform. The vertical guide rail is installed on the base plate through the guide rail fixing part. The guide rail moving part can be movably installed on the vertical guide rail. The vertical motion storage platform is connected to the top of the guide rail moving part.

7. The device for testing the shockproof performance of a sports bra under simulated high-speed motion conditions according to claim 6, characterized in that: The horizontal motion structure includes a horizontal guide rail, a horizontal motion storage platform, a horizontal vibration connecting piece and a flange slider. The horizontal guide rail is installed on the base plate. The horizontal motion storage platform is slidably connected to the horizontal guide rail via the flange slider. One end of the horizontal vibration connecting piece is fixed to one end of the horizontal motion storage platform.

8. The device for testing the shockproof performance of a sports bra under simulated high-speed motion conditions according to claim 7, characterized in that: One end of the connecting bearing is transmission-connected to the moving block, and the other end is fixed to one end of the guide rail moving part or the horizontal vibration connecting part through bolts.

9. The device for testing the shockproof performance of a sports bra under simulated high-speed motion conditions according to claim 2, characterized in that: A load of 500-1000kg is arranged under the bottom plate of the transmission drive mechanism.

10. The device for testing the shockproof performance of a sports bra under simulated high-speed motion conditions according to claim 1, characterized in that: The control box is equipped with a motion controller, a timer, and a counter for adjusting the motion time, the number of motions, and the motion frequency, wherein the motion frequency adjustment range is 0-200 times / min.

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