Running shoe insole structure designed based on foot finite element model

Abstract

The utility model discloses a running shoe midsole structure based on foot finite element model design, and relates to the technical field of running shoes, the running shoe midsole structure comprises a sole, a convex block is arranged at the foot arch of the sole, a supporting block is arranged in the convex block, the supporting block is embedded in the sole, the section of the supporting block is in an arc shape, and the supporting block is arranged in the sole. A supporting cavity is formed in the supporting block, an air bag is fixedly installed in the supporting cavity, the supporting block is arranged, the supporting block is used for supporting the arch of a user, bad gaits are helped to be corrected, excessive distortion and uneven pressure distribution of the feet in the running process are reduced, and the comfort of the user is improved. Meanwhile, the stability of the shoe sole at the arch can be improved through the combined action of the arc-shaped supporting blocks and the internal air bags, when the feet of a user touch the ground, the air bags can be adjusted according to pressure, certain elastic supporting is provided, the buffering and damping effects can be achieved, the influence of ground counter-acting force on the body can be effectively reduced, and the feet of the user are protected.

Description

Technical Field

[0001] The utility model relates to the technical field of running shoes, in particular to a midsole structure of a running shoe designed based on a finite element model of the foot. Background Technique

[0002] Running shoes, as the name implies, are shoes for running, specifically referring to the shoes most suitable for running. There are tens of thousands of running shoe brands. According to different performances and target users, running shoes are roughly divided into three categories: shock-absorbing running shoes, stability running shoes, and motion control running shoes.

[0003] The Chinese utility model patent with the patent application number 202321841835.0 provides a midsole structure of a shoe. By setting a first shock-absorbing layer made of EVA, EVA has good softness and elasticity, can quickly return to its original state after being stressed, can provide a comfortable touch and buffering effect for the product, and the EVA material has the characteristics of wear resistance and corrosion resistance, can resist the erosion of friction, chemicals and solvents, and extend the service life of the product.

[0004] However, it is found in the use process of the above device that when a runner with a problem of foot pronation runs and lacks support for the feet, the feet are prone to excessive inward rotation, resulting in abnormal running postures. Poor running postures and running shoes lacking support will cause the leg muscles to overexert, easily leading to muscle fatigue and soreness, and at the same time, easily causing joint pain and injuries. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a midsole structure of a running shoe designed based on a finite element model of the foot, which solves the problem that when a runner with a problem of foot pronation runs and lacks support for the feet, the feet are prone to excessive inward rotation, resulting in abnormal running postures as proposed in the background technique.

[0006] To achieve the above objectives, the utility model is realized through the following technical solutions: A midsole structure of a running shoe designed based on a finite element model of the foot, including a sole. A convex block is provided at the arch of the sole. A support block is provided inside the convex block. The support block is embedded inside the sole. The cross-section of the support block is arc-shaped. A support cavity is opened inside the support block, and an airbag is fixedly installed in the support cavity.

[0007] Preferably, the outer periphery of the sole is fixedly connected with an outsole. Anti-slip patterns are provided at the bottom of the outsole, and a number of anti-slip cones are provided at the bottom of the outsole.

[0008] Preferably, the outsole, the anti-slip patterns, and the anti-slip cones are all made of TPU.

[0009] Preferably, the sole includes a shoe insole, the shoe insole is adapted to the inner side of the outsole, the shoe insole is disposed on the top of the support block, and the shoe insole is made of Ortholite.

[0010] Preferably, a first buffer layer is connected below the shoe insole, the first buffer layer is disposed on one side of the support block, and the first buffer layer is made of EVA.

[0011] Preferably, a second buffer layer is disposed at the bottom of the sole, the second buffer layer is disposed below the first buffer layer and the support block, and the second buffer layer is made of PU.

[0012] The present utility model provides a midsole structure of a running shoe designed based on a finite element model of the foot. It has the following beneficial effects:

[0013] (1) By providing a support block, the present utility model supports the user's arch with the support block, helps correct bad gaits, and reduces excessive twisting and uneven pressure distribution of the feet during running.

[0014] (2) By providing an arc-shaped support block and an airbag, the present utility model can increase the stability of the sole at the arch. When the user's foot lands, the airbag will adjust according to the pressure and provide a certain amount of elastic support, which can play a role in buffering and shock absorption, effectively reducing the impact of ground reaction force on the body and protecting the user's feet.

[0015] Thus, it solves the problem that when a runner with pes valgus runs and lacks support for the feet, the feet are prone to excessive inward rotation and abnormal running postures occur. Description of the Drawings

[0016] Figure 1 It is a diagram showing the overall structure of the present utility model;

[0017] Figure 2 It is a diagram showing the bottom view of the overall structure of the present utility model;

[0018] Figure 3 For the present utility model Figure 1 It is a cross-sectional view of the midsole.

[0019] In the figure, 1, sole; 11, shoe insole; 12, first buffer layer; 13, second buffer layer; 14, support block; 141, support cavity; 15, airbag; 16, bump; 2, outsole; 21, anti-slip cone; 22, anti-slip pattern. Detailed Embodiments

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1: Please refer to Figures 1 - 3 The running shoe midsole structure designed based on the foot finite element model includes a sole 1, a convex block 16 is arranged at the arch of the sole 1, a support block 14 is arranged inside the convex block 16, the support block 14 is embedded inside the sole 1, the cross-section of the support block 14 is arc-shaped, a support cavity 141 is opened inside the support block 14, and an air bag 15 is fixedly installed in the support cavity 141.

[0022] Specifically, the convex block 16 at the arch and the internal support block 14 can fit the arch of the user, provide effective support for the arch, and prevent the arch from collapsing. For runners, especially those with inversion or valgus problems, good arch support can help correct bad gait and reduce excessive distortion and uneven pressure distribution of the foot during running. At the same time, the convex block 16 at the arch can better fit the shape of the foot, providing a more comfortable wearing experience.

[0023] The support block 14 is made of a carbon fiber composite material. Carbon fiber has extremely high strength and rigidity while being relatively light. The support block 14 is supported by the airbag 15, so that it can provide strong support for the arch of the foot without adding too much weight burden. The airbag 15 is made of rubber material, has good elasticity and sealing properties, can deform under pressure, provide cushioning and support, and can return to its original shape after the pressure is released. When the user's foot touches the ground, the airbag 15 will be deformed under pressure to absorb the impact force and reduce the vibration to the foot and joints. This is especially important for users who engage in high-intensity exercises such as running and jumping, as it can reduce the risk of injury.

[0024] Example 2: To achieve a comfortable experience for the sole, please refer to Figures 1 - 3 On the basis of Example 1, the outer sole 2 is fixedly connected to the peripheral side of the sole 1, the bottom of the outer sole 2 is provided with anti-slip grooves 22, and the bottom of the outer sole 2 is provided with a plurality of anti-slip cones 21;

[0025] The outer sole 2, the anti-skid pattern 22 and the anti-skid cone 21 are all made of TPU;

[0026] The sole 1 includes an insole layer 11, which is matched with the inner side of the outer sole 2. The insole layer 11 is arranged on the top of the support block 14, and the insole layer 11 is made of Ortholite;

[0027] A first buffer layer 12 is connected below the insole 11. The first buffer layer 12 is arranged on one side of the support block 14 and is made of EVA.

[0028] A second buffer layer 13 is arranged at the bottom of the sole 1. The second buffer layer 13 is arranged below the first buffer layer 12 and the support block 14 and is made of PU.

[0029] Specifically, by providing anti-slip patterns 22 and anti-slip cones 21 at the bottom of the outsole 2, and combining the anti-slip patterns 22 and the anti-slip cones 21, the friction between the sole 1 and the ground is increased, preventing slipping during walking or movement. TPU (thermoplastic polyurethane elastomer rubber) has good wear resistance, elasticity and toughness. As the material of the outsole 2, it can withstand long-term friction and wear, extending the service life of the sole 1. At the same time, the elasticity of TPU can provide buffering to a certain extent, reducing the impact force on the feet.

[0030] The insole 11 is in contact with the user's feet, providing a comfortable foot feeling. The Ortholite material is soft and has good breathability, can absorb the sweat of the feet, keep the feet dry, reduce the generation of odor, and keep the shoes clean. At the same time, Ortholite has the advantages of high elasticity, light weight, etc. Its high elasticity can adapt to different foot shapes and provide personalized support; the light weight feature can reduce the overall weight of the shoes and make walking easier.

[0031] The first buffer layer 12 is made of EVA material. EVA (ethylene-vinyl acetate copolymer) has good elasticity and softness, can deform according to different pressures, and provide appropriate buffering effect. At the same time, the EVA material is relatively light and will not increase the weight burden of the shoes. During walking or movement, the first buffer layer 12 made of EVA material can further absorb the impact force generated when the feet touch the ground, reduce the vibration of the feet and knees, and reduce the damage to the user's body caused by high-intensity exercise.

[0032] The second buffer layer 13 and the first buffer layer 12 work together to provide better buffering protection for the feet. PU (polyurethane) has high elasticity and wear resistance. Its elasticity can remain stable under different pressures and provide reliable buffering effect. During high-intensity exercise or long-term walking, the second PU buffer layer 13 and the first EVA buffer layer 12 can work together to provide continuous buffering for the feet, reducing the risk of fatigue and injury.

[0033] Working principle: When the user puts his foot into the shoe, he will immediately feel the support of the arch by the convex block 16 and the support block 14. The support block 14 made of carbon fiber composite material will fit the shape of the arch, provide stable support for the arch, help correct bad gait, and reduce excessive distortion and uneven pressure distribution of the foot during running. During walking or running, first, the anti-skid pattern 22 and anti-skid cone 21 of the outsole 2 will increase the friction between the sole 1 and the ground to prevent slipping. The outsole 2 made of TPU has good wear resistance, elasticity and toughness, and can withstand long-term friction and wear.

[0034] During exercise, when the user's feet touch the ground, the airbag 15 will be compressed and deformed, absorbing the impact force and reducing the vibration to the feet and joints. The rubber airbag 15 has good elasticity and sealing properties, and can be deformed when under pressure to provide cushioning and support. At the same time, it can return to its original state after the pressure is released. The EVA cushioning layer 12 and the PU cushioning layer 2 13 will work together to further absorb the impact force generated when the foot touches the ground. EVA has good elasticity and softness, and can be deformed according to different pressures to provide a suitable cushioning effect; PU has high elasticity and wear resistance, remains stable under different pressures, and provides a reliable cushioning effect. These two cushioning layers provide continuous cushioning for the feet and reduce the risk of fatigue and injury.

[0035] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. The midsole structure of a running shoe designed based on a finite element model of the foot, including a sole (1), characterized in that: A convex block (16) is provided at the arch of the sole (1). A support block (14) is arranged inside the convex block (16). The support block (14) is embedded inside the sole (1). The cross-section of the support block (14) is arc-shaped. A support cavity (141) is formed inside the support block (14), and an airbag (15) is fixedly installed in the support cavity (141).

2. The midsole structure of the running shoes designed based on the finite element model of the foot according to claim 1, characterized in that: An outsole (2) is fixedly connected to the periphery of the sole (1). Anti-slip patterns (22) are arranged at the bottom of the outsole (2), and a plurality of anti-slip cones (21) are arranged at the bottom of the outsole (2).

3. The midsole structure of the running shoe designed based on the finite element model of the foot according to claim 2, characterized in that: The outsole (2), the anti-slip patterns (22) and the anti-slip cones (21) are all made of TPU.

4. The insole structure of the running shoe designed based on the foot finite element model according to claim 2, characterized in that: The sole (1) includes a shoe insole layer (11). The shoe insole layer (11) is adapted to the inner side of the outsole (2). The shoe insole layer (11) is arranged on the top of the support block (14). The shoe insole layer (11) is made of Ortholite.

5. The midsole structure of the running shoes designed based on the finite element model of the foot according to claim 4, characterized in that: A first buffer layer (12) is connected below the shoe insole layer (11). The first buffer layer (12) is arranged on one side of the support block (14). The first buffer layer (12) is made of EVA.

6. The midsole structure of the running shoes designed based on the finite element model of the foot according to claim 5, characterized in that: A second buffer layer (13) is arranged at the bottom of the sole (1). The second buffer layer (13) is arranged below the first buffer layer (12) and the support block (14). The second buffer layer (13) is made of PU.

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