An arch support insole suitable for both leisure and running

Abstract

The utility model belongs to the cross field of foot biomechanics and intelligent wearing, especially relates to a foot arch support insole suitable for two states of leisure and running. A foot arch support insole suitable for two states of leisure and running, including insole body, the foot arch part inside of insole body is inlayed and is arranged support part, the support part includes at least one capsule or cavity, and the capsule or cavity inside fills magnetorheological fluid material, the inside or periphery of capsule or cavity is provided with layered electromagnetic induction coil, and the bottom of insole body is provided with piezoelectric sensor, the utility model provides a foot arch support insole suitable for two states of leisure and running, the hardness of support part in the running state is greater than the hardness of leisure state, to adapt to the foot arch deformation difference of same user under different motion states and different time periods, breaks the defect that traditional fixed hardness insole cannot adapt to dynamic change, can let the sole and insole more fit.

Description

Technical Field

[0001] This invention belongs to the interdisciplinary field of foot biomechanics and smart wearables, and specifically relates to an arch support insole suitable for both leisure and running. Background Technology

[0002] The pressure and deformation requirements of the arch of the foot vary significantly under different exercise conditions. Most existing arch support insoles are made of fixed-hardness EVA or TPU materials, which cannot adapt to the different arch deformations of the same user under different exercise conditions and at different times. For example, the arch sinks 18%-22% more during walking than during running, and fixed-hardness insoles cannot adjust their support intensity in real time to follow this deformation. This can easily lead to excessive pressure or insufficient support on the arch during exercise, potentially causing foot fatigue, pain, or even sports injuries with long-term use. Furthermore, individual differences in arch height among users are difficult to accommodate, and insoles cannot be adjusted to suit the individual arch height of different users. High arches have a 30%-40% smaller contact area than normal feet, and fixed-structure insoles cannot be personalized for different arch heights, resulting in low fit rates. Some users not only fail to obtain effective support but may also experience increased foot discomfort due to concentrated local pressure. Utility Model Content

[0003] To address the current technical problem that the insoles cannot be adapted to the different arch deformations of the same user under different sports conditions, nor can they adapt to the individual fit rate of different users' arch heights, this utility model provides an arch support insole suitable for both leisure and running.

[0004] The specific technical solution of this utility model is as follows: An arch support insole suitable for both leisure and running includes an insole body. A support component is embedded inside the arch portion of the insole body. The support component includes at least one bladder or cavity filled with a magnetorheological fluid material. A layered electromagnetic induction coil is disposed inside or around the bladder or cavity. A piezoelectric sensor is disposed at the bottom of the insole body. The piezoelectric sensor consists of at least one first piezoelectric sensor unit and at least one second piezoelectric sensor unit. The first piezoelectric sensor unit is attached to the insole body corresponding to the forefoot area, and the second piezoelectric sensor unit is attached to the insole body corresponding to the heel area. The first and second piezoelectric sensor units are electrically connected to a control component, a battery element, and the layered electromagnetic induction coil, respectively.

[0005] The initial viscosity of the magnetorheological fluid material is 150 mPa·s. The hardness of the magnetorheological fluid material in the running state is greater than that in the leisure state. The difference between the hardness of the magnetorheological fluid material in the running state and the hardness in the leisure state is 200%-300% higher than that of the viscosity of the magnetorheological fluid material in the leisure state. This hardness is achieved by controlling the change of the magnetic field of the magnetorheological fluid material through the change of foot pressure during running, thereby changing the viscosity of the magnetorheological fluid material.

[0006] The magnetic field is controlled by the pressure difference value of the piezoelectric sensor.

[0007] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides an arch support insole suitable for both leisure and running states. The support component has a higher hardness in running state than in leisure state, in order to adapt to the arch deformation differences of the same user in different sports states and at different times. It breaks the defect of traditional fixed-hardness insoles that cannot adapt to dynamic changes, and allows the sole of the foot to fit the insole better. It can always provide matching support for the arch and prevent compensatory foot damage caused by support imbalance. Fixed-hardness insoles are prone to excessive wear in high-frequency stress areas (such as the arch apex) during long-term use because they cannot adapt to the dynamic deformation of the arch. Insoles that can adapt to the differences in arch deformation can make the wear more uniform by adjusting the support points and stress distribution, thereby extending the overall service life and reducing the user's replacement frequency and cost. (3) The arch adjustment is carried out in both active and passive ways by magnetorheological fluid material, which solves the adaptation limitation problem of static support insoles. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the magnetorheological fluid material used to fill the arch area of ​​the insole body according to this invention.

[0009] Figure 2 This is a circuit diagram of the magnetorheological fluid material used to fill the arch area of ​​the insole body according to this invention.

[0010] Figure 3 This is a graph showing the measurement results of foot pressure distribution in traditional insoles.

[0011] Figure 4 The image shows the measurement results of the foot pressure distribution of an arch support insole suitable for both leisure and running.

[0012] Among them, 1 is the insole body; 2 is the support component; 22 is the magnetorheological fluid material; 3 is the layered electromagnetic induction coil; 4 is the piezoelectric sensor; 41 is the first piezoelectric sensor unit; 42 is the second piezoelectric sensor unit; 5 is the control component; and 6 is the battery element. Detailed Implementation

[0013] The present invention will be further described below with reference to specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0014] like Figure 1-2 As shown, an arch support insole suitable for both leisure and running includes an insole body 1. A support component 2 is embedded inside the arch portion of the insole body 1. The support component 2 includes at least one bladder or cavity, which is filled with magnetorheological fluid material 22. A layered electromagnetic induction coil 3 is disposed inside or around the bladder or cavity. A piezoelectric sensor 4 is disposed at the bottom of the insole body 1. The piezoelectric sensor 4 consists of at least one first piezoelectric sensor unit 41 and at least one second piezoelectric sensor unit 42. The first piezoelectric sensor unit 41 is attached to the insole body 1 corresponding to the forefoot area, and the second piezoelectric sensor unit 42 is attached to the insole body 1 corresponding to the heel area. The first piezoelectric sensor unit 41 and the second piezoelectric sensor 42 are electrically connected to a control component 5, a battery element 6, and the layered electromagnetic induction coil 3, respectively.

[0015] The support component 2 is embedded inside the arch portion of the insole body 1. This is achieved by pressing a groove into the arch portion of the insole body 1 using a hot press mold, aligning the support component 2 with the groove, and then applying pressure to solidify it.

[0016] The initial viscosity of the magnetorheological fluid material 22 is 150 mPa·s. The hardness of the magnetorheological fluid material in the running state is greater than that in the leisure state. The difference between the hardness of the magnetorheological fluid material in the running state and the hardness in the leisure state is 200%-300% higher than that of the viscosity of the magnetorheological fluid material in the leisure state. This hardness is achieved by controlling the change of the magnetic field of the magnetorheological fluid material through the change of foot pressure during running, thereby changing the viscosity of the magnetorheological fluid material.

[0017] The magnetic field is controlled by the pressure difference value of the piezoelectric sensor.

[0018] Specific working process: When the user walks while wearing the insole body 1, the piezoelectric sensor 4 detects a pressure difference V ≤ 15 N / cm between the forefoot and heel areas. 2 The electrical signal from the piezoelectric sensor 4 is transmitted to the control component 5. The control component 5 and the battery element 6 are non-conductive and cannot provide current to the layered electromagnetic induction coil 3. The hardness of the support component 2 embedded in the arch area of ​​the insole body 1 does not change. When the user runs while wearing the insole body 1, the piezoelectric sensor 4 detects a pressure difference V > 15 N / cm between the forefoot and heel areas. 2The electrical signal from the piezoelectric sensor 4 is transmitted to the control component 5. The control component 5 conducts electricity with the battery element 6, providing current to the layered electromagnetic induction coil 3. The layered electromagnetic induction coil 3 generates a magnetic field inside or around the bladder or cavity, causing the magnetorheological fluid material 22 to become viscous, thus providing support for the arch of the foot.

[0019] When the piezoelectric sensor 4 detects a pressure difference V between the forefoot and heel areas > 15 N / cm 2 The viscosity of magnetorheological fluid material 22 increases by 200%-300% within 10 milliseconds. In high-pressure sports scenarios, the hardness of the arch area of ​​the insole increases instantly, forming rigid support and inhibiting excessive deformation of the arch.

[0020] In special circumstances, users can also adjust the power of the layered electromagnetic induction coil 3 to achieve active adjustment of the arch support.

[0021] Foot pressure distribution measurements were conducted on individuals with high arches using both traditional insoles and the arch support insole provided by this invention, suitable for both leisure and running. Figure 3 The image shows the measurement results of foot pressure distribution in traditional insoles. Figure 4 The image shows the measurement results of foot pressure distribution in an arch support insole suitable for both leisure and running, as provided in this invention. The results show that traditional insoles cannot provide support for people with high arches, resulting in insufficient pressure on the arch and excessive pressure on the forefoot and heel. The insole provided by this invention, which incorporates shape memory polyurethane material embedded in the arch area of ​​the insole body, dynamically adjusts the hardness of the insole at the arch using the pressure difference between the foot and the insole. This disperses foot pressure, allowing the foot to fit more closely to the insole and consistently providing appropriate support for the arch.

[0022] In summary, this invention provides an arch support component suitable for both leisure and running. The support component has a higher hardness during running than during leisure, adapting to the varying arch deformation of the same user under different exercise conditions and at different times. This overcomes the limitations of traditional fixed-hardness insoles, which cannot adapt to dynamic changes. It allows for a closer fit between the foot and the insole, consistently providing matched support to the arch and preventing compensatory foot injuries caused by support imbalance. Fixed-hardness insoles, due to their inability to adapt to dynamic arch deformation over long-term use, are prone to excessive wear in high-frequency stress areas (such as the arch apex). Insoles that adapt to varying arch deformation can adjust support points and stress distribution, resulting in more even wear, thus extending overall lifespan and reducing replacement frequency and costs for users. Furthermore, the use of magnetorheological fluid materials for both active and passive arch adjustment solves the limitations of static support insoles.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An arch support insole suitable for both leisure and running, comprising an insole body, characterized in that, A support component is embedded inside the arch portion of the insole body. The support component includes at least one bladder or cavity filled with magnetorheological fluid material. A layered electromagnetic induction coil is disposed inside or around the bladder or cavity. A piezoelectric sensor is disposed at the bottom of the insole body. The piezoelectric sensor consists of at least one first piezoelectric sensor unit and at least one second piezoelectric sensor unit. The first piezoelectric sensor unit is attached to the insole body corresponding to the forefoot area, and the second piezoelectric sensor unit is attached to the insole body corresponding to the heel area. The first and second piezoelectric sensor units are electrically connected to a control component, a battery element, and a layered electromagnetic induction coil, respectively.

2. The arch support insole suitable for both leisure and running as described in claim 1, characterized in that, The initial viscosity of the magnetorheological fluid material is 150 mPa·s. The hardness of the magnetorheological fluid material in the running state is greater than that in the leisure state. The difference between the hardness of the magnetorheological fluid material in the running state and the hardness in the leisure state is 200%-300% higher than that of the viscosity of the magnetorheological fluid material in the leisure state. This hardness is achieved by controlling the change of the magnetic field of the magnetorheological fluid material through the change of foot pressure during running, thereby changing the viscosity of the magnetorheological fluid material.

3. The arch support insole suitable for both leisure and running as described in claim 2, characterized in that, The magnetic field is controlled by the pressure difference value of the piezoelectric sensor.

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