Sole antiskid performance testing device
By dividing the sole of the shoe last into independent sections and combining them with movable frames, rotating frames, and media units, complex road surface conditions are simulated, solving the problem of existing testing devices simulating only one type of surface and achieving more accurate anti-slip performance testing.
Patent Information
- Application Number
- CN202610411355.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-31
- Publication Date
- 2026-05-01
AI Technical Summary
Existing shoe sole anti-slip testing devices and methods simulate only a single state and cannot accurately reflect the dynamic movement of the human body and complex road conditions, resulting in inaccurate test results, especially posing safety hazards in special environments or user groups.
Design a shoe sole anti-slip performance testing device. By dividing the sole of the shoe last into multiple independent blocks, and combining a movable frame, a rotating frame, a turntable and a medium unit, it can simulate different foot shapes and complex road conditions, and realize dynamic contact and simulation of various road environments.
It can more accurately test the anti-slip performance of shoe soles under complex movement conditions and diverse road surfaces, providing more realistic test results, and is suitable for footwear products in special environments and for user groups.
Smart Images
Figure CN121943014A_ABST
Abstract
Description
A shoe sole anti-slip performance testing device Technical Field
[0001] This invention relates to the field of shoe measurement technology, and more specifically to a device for testing the anti-slip performance of shoe soles. Background Technology
[0002] The anti-slip performance of footwear is a key indicator of wearer safety and comfort, especially in wet, oily, or complex road conditions. Insufficient anti-slip performance can easily lead to slips, falls, and injuries. Therefore, scientific, accurate, and realistic anti-slip performance testing is crucial in the research and development and quality testing of footwear.
[0003] Traditional methods for testing shoe sole slip resistance often employ simple inclined plane sliding or translational traction methods. These methods typically place the shoe on a flat surface covered by a specific medium (such as water or oil) and assess the static friction coefficient by measuring the angle or force required to initiate slippage. However, these traditional devices and testing methods have significant limitations: First, the contact state between the sole and the test surface is often fixed and uniform during testing, simulating an ideal situation of flat sole contact. In reality, when a person walks, runs, turns, or goes up or down slopes, the contact between the foot and the ground is a dynamic and uneven process—for example, during the gait cycle, the forefoot push-off, heel strike, and arch support phases, only a portion of the sole contacts the ground and experiences pressure distribution. Second, the shoe lasts or fixing devices used to support the shoe in traditional tests are mostly rigid integral structures, unable to simulate real foot shapes (such as high arches or flat feet) and the resulting differences in pressure distribution within the shoe. Different foot shapes directly affect the actual fit and pressure distribution between the sole and the ground, thus significantly altering its slip resistance performance. Furthermore, existing testing devices often struggle to flexibly simulate complex motion postures (such as lateral movement and sudden changes in direction) and diverse road surface media combinations (such as mixtures of water, oil, and gravel), resulting in overly simplistic testing environments that differ significantly from actual usage scenarios.
[0004] Therefore, existing shoe sole anti-slip testing devices and methods generally suffer from problems such as simulating only a single state and insufficient conformity to real human biomechanics and foot shape. This results in test results that often cannot comprehensively and accurately reflect the true anti-slip performance of shoes in actual wear, especially in complex postures or for specific user groups (such as those with special foot types or occupations). This introduces uncertainty into the safety performance evaluation of footwear products and may also affect the direction of product development and improvement for special needs (such as safety shoes and outdoor sports shoes). Summary of the Invention
[0005] This invention provides a device for testing the anti-slip performance of shoe soles, thereby solving the problem of the limited testing methods for anti-slip performance of shoe soles in the prior art.
[0006] The present invention provides a shoe sole anti-slip performance testing device with the following technical solution: A shoe sole anti-slip performance testing device includes a shell, a testing platform, a movable frame, and a shoe last; the testing platform is slidably mounted on the shell in a horizontal direction, and its moving direction is a first direction; the movable frame is hinged to the shell, and a pressure sensor for sensing the pressure of the movable frame in the first direction is provided between the movable frame and the shell; the shoe last is fitted inside the test shoe, including the instep and the sole, the instep is mounted on the movable frame, and the movable frame allows the angle of the shoe last to be adjustable, thereby allowing the test shoe to contact the test shoe. The contact method of the test platform is adjustable; the sole and instep are movably connected and divided into independent forefoot, midfoot, and hindfoot areas. Each forefoot, midfoot, and hindfoot area includes at least two blocks distributed from the inside to the outside of the foot. Each block can move freely in a direction perpendicular to the bottom of the test shoe. By configuring the top pressure of different blocks on the test shoe, the stepping conditions of different foot types on the test shoe can be simulated. The outer shell also contains a power unit for pressing the movable frame, which presses the movable frame to make the test shoe contact the test platform.
[0007] Optionally, the movable frame includes a support, a rotating frame, and a turntable. The support is hinged to the housing and can transmit pressure in the first direction to the pressure sensor. The rotating frame is rotatably mounted on the support about a horizontal axis perpendicular to the first direction, and the rotating frame is locked to the support after adjusting its angle with the support. The turntable is rotatably mounted on the rotating frame with its rotation axis perpendicular to the rotation axis of the rotating frame, and the instep is mounted on the turntable. The rotating frame rotates to adjust the contact area between the experimental shoe and the test platform, and the turntable rotates to adjust the angle of rotation of the experimental shoe about an axis perpendicular to the bottom of the experimental shoe.
[0008] Optionally, the test platform includes two movable platforms, which are distributed sequentially along a second direction, which is a horizontal direction perpendicular to the first direction; the two movable platforms abut each other on their sides and can move in the same direction or in opposite directions; the test shoe is placed on the two movable platforms at the same time, and the rotation of the turntable changes the deflection angle of the test shoe relative to the seam of the two movable platforms; a torque sensor is set between the turntable and the rotating frame.
[0009] Optionally, a master pump and multiple piston pumps are installed inside the instep. The master pump and multiple piston pumps are connected by pipelines, and each piston pump is equipped with a control valve on its pipeline. The output end of each piston pump is connected to a corresponding block. By opening and closing the control valve, the pressure of the corresponding piston pump connected to the block on the experimental shoe is adjusted.
[0010] Optionally, the midfoot area can be divided into four blocks.
[0011] Optionally, the shoe sole anti-slip performance testing device also includes a media unit, which includes an oil tank, a powder and dust tank, a water tank, and a mixing tank. The oil tank, powder and dust tank, and water tank are used to store oil, dust, and water, respectively, and are all connected to the mixing tank. The mixing tank is equipped with a stirring structure, and oil, dust, and water are selectively introduced into the mixing tank, stirred, and then sent to the testing platform.
[0012] Optionally, the movable frame further includes a transmission unit, which includes a first gear disposed outside the turntable, a second gear rotatably mounted on the rotating frame, and a motor fixed to the rotating frame. The first gear meshes with the second gear, and the second gear rotates under the drive of the motor. The torque sensor is disposed between the output shaft of the motor and the second gear.
[0013] Optionally, a heating wire is provided inside the test platform to adjust the temperature of the test platform.
[0014] Optionally, the turntable has a cross groove, and the instep of the shoe last is mounted to the cross groove by at least two bolt assemblies and its position within the cross groove is adjustable.
[0015] Optionally, the bracket is provided with an elongated hole and an arc-shaped hole. The elongated hole is perpendicular to the test platform, and the axis of the arc-shaped hole is along the second direction. The two sides of the rotating bracket are connected to the elongated hole and the arc-shaped hole respectively by bolt assemblies.
[0016] The beneficial effects of the present invention are: the shoe sole anti-slip performance testing device of the present invention divides the bottom of the shoe last into multiple independent blocks, and can select the appropriate block to step on the test shoe according to the force state of different foot shapes, which is more in line with the actual use scenario and makes the anti-slip test of the test shoe more accurate.
[0017] Furthermore, the rotating frame adjusts the contact area between the experimental shoe and the testing platform, switching between contact between the forefoot, heel, or the entire sole, thus simulating anti-slip performance under different walking conditions. The rotating dial adjusts the angle of rotation of the experimental shoe around an axis perpendicular to the shoe's bottom, simulating anti-slip performance under lateral pressure or climbing conditions.
[0018] Furthermore, by adjusting the deflection angle of the experimental shoe relative to the seam of the two moving platforms, and then moving the two moving platforms in opposite directions, the relative motion state of the shoe and the ground under a sharp turn can be simulated, thereby testing the anti-slip performance of the experimental shoe under a sharp turn.
[0019] Furthermore, by preparing a variety of test media and selectively mixing them or changing the proportions of different media, it is possible to simulate the complex surface conditions of actual road surfaces.
[0020] In summary, by combining shoe lasts, testing platforms, rotating frames, turntables, and media units, more complex road surface conditions and shoe usage conditions can be simulated, resulting in more comprehensive anti-slip test results. When monitoring experimental shoes used in special environments or by special personnel, a more realistic simulated environment can yield more accurate test results. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 is a schematic diagram of the overall structure of an embodiment of the anti-slip performance testing device for shoe soles of the present invention; Figure 2 is an enlarged schematic diagram of point A in Figure 1; Figure 3 is an enlarged schematic diagram of point B in Figure 1; Figure 4 is a schematic diagram of the overall structure of an embodiment of the anti-slip performance testing device for shoe soles of the present invention disassembled; Figure 5 is an enlarged schematic diagram of point C in Figure 4.
[0023] In the diagram: 100, outer casing; 110, power unit; 200, test platform; 210, movable platform; 300, movable frame; 310, bracket; 311, elongated hole; 312, arc-shaped hole; 320, rotating frame; 330, turntable; 331, cross groove; 341, first gear; 342, second gear; 350, pressure sensor; 400, shoe last; 410, instep; 411, master pump; 412, piston pump; 413, control valve; 420, sole; 421, forefoot area; 422, midfoot area; 423, hindfoot area; 500, media unit; 510, oil tank; 520, powder / dust tank; 530, water tank; 540, mixing tank; 541, guide pipe. Detailed Implementation
[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0025] An embodiment of a shoe sole anti-slip performance testing device of the present invention is shown in Figures 1 to 5, including a shell 100, a testing platform 200, a movable frame 300, and a shoe last 400.
[0026] The test platform 200 is slidably mounted on the housing 100 in a horizontal direction, and its direction of movement is the first direction.
[0027] The movable frame 300 is hinged to the housing 100, and a pressure sensor 350 for sensing the pressure of the movable frame 300 in a first direction is provided between the movable frame 300 and the housing 100.
[0028] The shoe last 400 is fitted inside the experimental shoe, including the instep 410 and the sole 420. The instep 410 is mounted on the movable frame 300, and the movable frame 300 allows the angle of the shoe last 400 to be adjusted, thereby allowing the contact mode between the experimental shoe and the test platform 200 to be adjusted. For example, the forefoot of the experimental shoe can contact the test platform 200, or the heel of the experimental shoe can contact the test platform 200, or the entire sole of the experimental shoe can contact the experimental shoe, so as to simulate the friction state between the shoe and the ground when tiptoeing or landing while walking. The sole 420 is movably connected to the instep 410 and is divided into three independent zones: forefoot 421, midfoot 422, and hindfoot 423. Each zone includes at least two sections distributed from the medial to the lateral side of the foot. Each section can move freely in a direction perpendicular to the sole of the experimental shoe. By configuring the top pressure of different sections on the experimental shoe, the trodden conditions of different foot types can be simulated. For example, people with high arches mainly exert pressure on the shoe through the forefoot 421, the lateral side of the midfoot 422, and the hindfoot 423, while people with flat feet exert pressure on the shoe through the entire sole, and so on.
[0029] The outer casing 100 also contains a power unit 110 for pressing down on the movable frame 300, which presses down on the movable frame 300 to bring the experimental shoe into contact with the test platform 200. The power unit 110 is a hydraulic rod as in the prior art, and the hydraulic rod is hinged to the movable frame 300.
[0030] In use, the foot bottom 420 of the shoe last 400 can be adjusted first, and appropriate sections can be protruded to simulate different foot shapes. Then, the shoe last 400 is put into the experimental shoe and installed on the movable frame 300. The test medium is poured on the test platform 200 beforehand. Then, the power unit 110 is activated to press the movable frame 300 so that the experimental shoe fits against the test platform 200. By moving the test platform 200, the experimental shoe tends to move in the first direction under the friction with the test platform 200. The anti-slip performance of the experimental shoe is indirectly obtained through the pressure sensed by the pressure sensor 350.
[0031] By dividing the sole 420 of the shoe last 400 into multiple independent sections, the appropriate section can be selected to be pressed onto the experimental shoe according to the force state of different foot shapes, which is more in line with actual use scenarios and makes the anti-slip test of the experimental shoe more accurate.
[0032] In this embodiment, the movable frame 300 includes a support 310, a rotating frame 320, and a turntable 330. The support 310 is hinged to the outer shell 100 and can transmit pressure in the first direction to the pressure sensor 350. The rotating frame 320 is rotatably mounted on the support 310 about a horizontal axis perpendicular to the first direction. After adjusting its angle with the support 310, the rotating frame 320 is locked to the support 310. The turntable 330 is rotatably mounted on the rotating frame 320, and its rotation axis is perpendicular to the rotation axis of the rotating frame 320. The instep 410 is mounted on the turntable 330. The rotating frame 320 rotates to adjust the contact area between the experimental shoe and the test platform 200, switching between the forefoot, heel, or the entire sole contacting the test platform 200, which can simulate the anti-slip performance under different walking conditions. The rotation of the turntable 330 adjusts the angle of rotation of the experimental shoe about an axis perpendicular to the bottom of the shoe, which can simulate the anti-slip performance of the experimental shoe under lateral pressure or climbing conditions.
[0033] In this embodiment, the test platform 200 includes two movable platforms 210, which are sequentially distributed along a second direction, a horizontal direction perpendicular to the first direction. The two movable platforms 210 are side-to-side and can move in both the same direction and opposite directions. A test shoe is placed on both movable platforms 210 simultaneously. A turntable 330 rotates to change the deflection angle of the test shoe relative to the seam between the two movable platforms 210. A torque sensor is installed between the turntable 330 and the rotating frame 320. During testing, the turntable 330 can be rotated to adjust the deflection angle of the test shoe relative to the seam between the two movable platforms 210, and then the two movable platforms 210 can be moved in opposite directions to simulate the relative motion between the shoe and the ground under a sharp turn, thereby testing the anti-slip performance of the test shoe under a sharp turn. The two movable platforms 210 are driven by two air cylinders or two hydraulic cylinders, and the extension and retraction states of the two air cylinders or two hydraulic cylinders can be adjusted as needed to make the two movable platforms 210 move synchronously or in opposite directions.
[0034] In this embodiment, a master pump 411 and multiple piston pumps 412 are installed inside the instep 410. The master pump 411 and the multiple piston pumps 412 are connected by pipelines, and each piston pump 412 is equipped with a control valve 413 on its pipeline. The output end of each piston pump 412 is connected to a corresponding block. By opening and closing the control valve 413, the pressure of the corresponding piston pump 412 connected to the block on the experimental shoe is adjusted. The master pump 411 and piston pumps 412 can be air pumps or hydraulic pumps. In the initial state, the multiple blocks of the instep 410 are flush with the side away from the instep 410. The opening and closing of the multiple control valves 413 can be controlled by a PLC program. When the control valve 413 is open, the multiple piston pumps 412 drive the corresponding blocks to move the same distance to ensure that the bottoms of the multiple blocks are flush after extension.
[0035] In this embodiment, the midfoot area 422 has four blocks. The appropriate number of blocks can be selected according to the height of the arch. The maximum extension distance of the four arches can also be increased from the inside to the outside, so that they are distributed in a stepped manner after extension, which is more in line with the pressure state of the shoe.
[0036] In this embodiment, the shoe sole anti-slip performance testing device further includes a media unit 500, which includes an oil tank 510, a powder / dust tank 520, a water tank 530, and a mixing tank 540. The oil tank 510, powder / dust tank 520, and water tank 530 are used to store oil, dust, and water, respectively, and are all connected to the mixing tank 540. The mixing tank 540 is equipped with a stirring structure, and oil, dust, and water are selectively introduced into the mixing tank 540, stirred, and then sent to the testing platform 200. The stirring structure is a stirring shaft, which can be driven by a drive motor located outside the mixing tank 540 or manually driven. The mixing tank 540 is equipped with a guide pipe 541 to guide the mixed test medium to flow to the testing platform 200. Prepare three test media and mix them selectively, or change the proportions of different media, to simulate the complex surface conditions of actual road surfaces. For example, when simulating the road surface of a restaurant kitchen, the proportion of oil can be increased appropriately, and when simulating the road surface of a construction site, the proportion of dust can be increased appropriately.
[0037] In this embodiment, the movable frame 300 further includes a transmission unit, which includes a first gear 341 disposed outside the turntable 330, a second gear 342 rotatably mounted on the rotating frame 320, and a motor fixed to the rotating frame 320. The first gear 341 meshes with the second gear 342, and the second gear 342 rotates under the drive of the motor. The torque sensor is disposed between the output shaft of the motor and the second gear 342.
[0038] In this embodiment, a heating wire is provided inside the test platform 200 to adjust the temperature of the test platform 200 in order to simulate road surface at different temperatures.
[0039] In this embodiment, a cross groove 331 is provided on the turntable 330, and the instep 410 of the shoe last 400 is installed in the cross groove 331 by at least two bolt assemblies and its position in the cross groove 331 is adjustable.
[0040] In this embodiment, the bracket 310 is provided with an elongated hole 311 and an arc-shaped hole 312. The elongated hole 311 is perpendicular to the test platform 200, and the axis of the arc-shaped hole 312 is along a second direction. The two sides of the rotating frame 320 are connected to the elongated hole 311 and the arc-shaped hole 312 respectively by bolt assemblies. The angle of the rotating frame 320 can be adjusted by tightening or loosening the bolt assembly, thereby changing its relative position with respect to the elongated hole 311 or the arc-shaped hole 312. The bolt assembly is a combination of bolts and nuts commonly used in the prior art.
[0041] When using the anti-slip performance testing device for shoe soles of the present invention, the foot bottom 420 of the shoe last 400 is first adjusted as needed, and appropriate protrusions are selected to simulate different foot shapes. Then, the shoe last 400 is fitted into the test shoe, and the shoe last 400 is mounted on the cross groove 331 on the turntable 330 by at least two bolt assemblies to prevent the shoe last 400 from rotating relative to the turntable 330.
[0042] The test medium is prepared as needed, mixed in the mixing chamber 540 and then guided to the test platform 200. Then, the power unit 110 is activated to press the movable frame 300 so that the test shoe fits against the test platform 200. By making the two movable platforms 210 move synchronously and in the same direction, the test shoe tends to move in the first direction under the friction with the test platform 200. The anti-slip performance of the test shoe is indirectly obtained through the pressure sensed by the pressure sensor 350.
[0043] Before the experimental shoe is attached to the test platform 200, the turntable 330 is rotated by starting the motor, which can change the tilt angle of the experimental shoe relative to the seam of the two movable platforms 210. Then, after the experimental shoe is attached to the two movable platforms 210, the two movable platforms 210 are moved synchronously and in opposite directions. The anti-slip performance of the experimental shoe under the rapid turning state is judged based on the data measured by the torque sensor.
[0044] By combining the shoe last 400, test platform 200, rotating frame 320, turntable 330 and medium unit 500, more complex road surface conditions and shoe usage conditions can be simulated, resulting in more comprehensive anti-slip test results. When monitoring experimental shoes used in special environments or by special personnel, a more realistic simulated environment can yield more accurate test results.
[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A device for testing the anti-slip performance of shoe soles, characterized in that, The system includes an outer shell, a testing platform, a movable frame, and a shoe last. The testing platform is slidably mounted on the outer shell in a horizontal direction, with its movement direction being a first direction. The movable frame is hinged to the outer shell, and a pressure sensor is installed between the frame and the outer shell to sense the pressure on the movable frame in the first direction. The shoe last is fitted inside the experimental shoe and includes the instep and the sole. The instep is mounted on the movable frame, and the movable frame allows the angle of the shoe last to be adjusted, thereby allowing the contact method between the experimental shoe and the testing platform to be adjusted. The sole and the instep are movably connected and are divided into independent forefoot, midfoot, and hindfoot areas. Each forefoot, midfoot, and hindfoot area includes at least two blocks distributed from the inner side of the foot to the outer side. Each block can move freely in a direction perpendicular to the bottom of the experimental shoe. By configuring the top pressure of different blocks on the experimental shoe, the stepping conditions of different foot shapes on the experimental shoe can be simulated. The outer shell also contains a power unit for pressing the movable frame, which presses the movable frame to make the experimental shoe contact the testing platform.
2. The shoe sole anti-slip performance testing device according to claim 1, characterized in that, The movable frame includes a support, a rotating frame, and a turntable. The support is hinged to the outer shell and can transmit pressure in the first direction to the pressure sensor. The rotating frame is rotatably mounted on the support about a horizontal axis perpendicular to the first direction. After adjusting its angle with the support, the rotating frame is locked to the support. The turntable is rotatably mounted on the rotating frame, and its rotation axis is perpendicular to the rotation axis of the rotating frame. The instep is mounted on the turntable. The rotating frame rotates to adjust the contact area between the experimental shoe and the testing platform, and the turntable rotates to adjust the angle of rotation of the experimental shoe about an axis perpendicular to the bottom of the experimental shoe.
3. The shoe sole anti-slip performance testing device according to claim 2, characterized in that, The testing platform includes two movable platforms, which are distributed sequentially along a second direction, which is a horizontal direction perpendicular to the first direction. The two movable platforms are in contact with each other on their sides and can move in the same direction or in opposite directions. The test shoe is placed on the two movable platforms at the same time, and the rotation of the turntable changes the deflection angle of the test shoe relative to the seam between the two movable platforms. A torque sensor is installed between the turntable and the rotating frame.
4. The shoe sole anti-slip performance testing device according to claim 1, characterized in that, The instep is equipped with a master pump and multiple piston pumps. The master pump and multiple piston pumps are connected by pipelines, and each piston pump is equipped with a control valve on the pipeline. The output end of each piston pump is connected to a corresponding block. By opening and closing the control valve, the pressure of the corresponding piston pump connected to the block on the experimental shoe is adjusted.
5. The shoe sole anti-slip performance testing device according to claim 1, characterized in that, The midfoot area is divided into 4 blocks.
6. The shoe sole anti-slip performance testing device according to claim 1, characterized in that, It also includes a media unit, which includes an oil tank, a powder and dust tank, a water tank, and a mixing tank. The oil tank, powder and dust tank, and water tank are used to store oil, dust, and water, respectively, and are all connected to the mixing tank. The mixing tank is equipped with a stirring structure, and oil, dust, and water are selectively introduced into the mixing tank, stirred, and then sent to the test platform.
7. The shoe sole anti-slip performance testing device according to claim 3, characterized in that, The movable frame also includes a transmission unit, which includes a first gear disposed outside the turntable, a second gear rotatably mounted on the rotating frame, and a motor fixed to the rotating frame. The first gear meshes with the second gear, and the second gear rotates under the drive of the motor. The torque sensor is disposed between the output shaft of the motor and the second gear.
8. The shoe sole anti-slip performance testing device according to claim 1, characterized in that, The testing platform is equipped with heating wires to adjust its temperature.
9. The shoe sole anti-slip performance testing device according to claim 1, characterized in that, The turntable has a cross groove, and the instep of the shoe last is installed in the cross groove by at least two bolt assemblies and its position in the cross groove is adjustable.
10. The shoe sole anti-slip performance testing device according to claim 2, characterized in that, The bracket is provided with elongated holes and arc-shaped holes. The elongated holes are perpendicular to the test platform, and the axis of the arc-shaped holes is along the second direction. The two sides of the rotating bracket are connected to the elongated holes and arc-shaped holes respectively by bolt assemblies.