Multi-layered gradient cushioning insole

Abstract

The utility model relates to sports shoes pad technical field, and disclose multilayer gradient shock attenuation sports shoes pad, including bottom layer, the upper end of bottom layer is equipped with shock attenuation layer, the upper end of shock attenuation layer is equipped with contact layer, the upper end of contact layer is equipped with two flexible buffer pads who sets up respectively corresponding human body heel area and the front palm area, the inside of flexible buffer pad is provided with a plurality of cavities, the inside of every cavity is filled with air cushion, the inside of bottom layer is embedded with fibre reinforcing rib. The utility model discloses through setting up flexible buffer pad below two key areas of heel and front palm, realized the differentiating shock attenuation configuration of point to point, made single shoes pad can satisfy heel shock absorption stability and front palm rebound high -efficient dual demand simultaneously, thereby optimized the energy flow in gait cycle, promoted the motion efficiency and reduced local fatigue and damage risk.

Description

Technical Field

[0001] This utility model relates to the field of sports shoe insole technology, specifically to multi-layer gradient cushioning sports shoe insoles. Background Technology

[0002] An athletic insole is a type of insole specifically designed to be placed inside athletic shoes to improve athletic performance, comfort, and foot health.

[0003] While existing athletic insoles commonly use cushioning materials such as memory foam, gel, or EVA, their internal structures are mostly homogeneous single-layer materials or simple material stacking, making it impossible to achieve differentiated density and hardness configurations in different areas. Whether it's the high-impact zone of the heel or the propulsion zone of the forefoot, the cushioning feedback provided by the insole is often uniform. This can lead to a lack of stable support in the heel area, which requires strong shock absorption, due to the material being too soft, while in the forefoot area, which requires rapid response, energy loss may occur due to insufficient material rebound. This not only reduces energy return efficiency but may also increase the risk of foot fatigue or injury due to unscientific local pressure distribution. Utility Model Content

[0004] The purpose of this invention is to provide multi-layer gradient cushioning sports insoles to solve the problem of insole lacking true gradient cushioning.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a multi-layer gradient cushioning sports insole, including a bottom layer, a cushioning layer at the top of the bottom layer, a contact layer at the top of the cushioning layer, two flexible cushioning pads at the top of the contact layer corresponding to the heel area and the forefoot area of ​​the human foot, respectively, and several cavities are opened inside the flexible cushioning pads. Each cavity is filled with an air cushion, and fiber reinforcing ribs are embedded inside the bottom layer.

[0006] Furthermore, the fiber reinforcement ribs are distributed in a wavy pattern inside the bottom layer.

[0007] Furthermore, the upper surface of the contact layer is covered with a skin-friendly surface, and a number of ventilating holes are formed on the skin-friendly surface.

[0008] Furthermore, the bottom layer is made of high-density TPU material.

[0009] Furthermore, the shock-absorbing layer is made of silicone material.

[0010] Furthermore, the contact layer is made of antibacterial sponge material.

[0011] Furthermore, the flexible cushioning pad is made of silicone gel material.

[0012] This utility model has the following beneficial effects: (1) This utility model achieves point-to-point differentiated shock absorption configuration by setting flexible cushioning pads under the two key areas of heel and forefoot. When the heel is subjected to high-intensity impact, the flexible cushioning pad in this area works together with the internal air cushion to provide deep deformation to absorb the impact. At the same time, the high-density TPU and wave-shaped fiber reinforcement at the bottom layer ensure stable support and prevent excessive collapse. During the forefoot push-off phase, the corresponding flexible cushioning pad provides faster and more powerful energy feedback through its compression deformation and rebound to assist propulsion. This partitioned reinforcement structure enables a single insole to simultaneously meet the dual requirements of heel shock absorption stability and forefoot rebound efficiency, thereby optimizing energy flow in the gait cycle, improving exercise efficiency and reducing local fatigue and injury risk.

[0013] (2) The fiber reinforcing ribs of this utility model are distributed in a wave-like pattern inside the bottom layer. They efficiently convert the longitudinal impact force and torsional stress that the insole receives during exercise into the elastic deformation energy of the material itself along the wave curve. This can provide compliant bending guidance to improve the efficiency of movement when the foot pushes out, and can also disperse the stress peak through the expansion of the wave structure under severe impact, preventing the material from fatigue fracture or permanent deformation due to local stress concentration.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the sports shoe insole of this utility model; Figure 2 This is an exploded view of the structure of the sports shoe insole of this utility model; Figure 3 This is a schematic diagram of the composition of the sports shoe insole of this utility model; Figure 4 This is a cross-sectional view of the structural components of the sports shoe insole of this utility model; The attached diagram lists the components represented by each number as follows: In the diagram: 1. Bottom layer; 2. Shock-absorbing layer; 3. Contact layer; 301. Skin-friendly surface; 302. Breathable holes; 4. Flexible cushioning pad; 5. Air cushion; 6. Fiber reinforcing ribs. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-4 As shown, this utility model is a multi-layer gradient shock-absorbing sports insole, including a bottom layer 1, a shock-absorbing layer 2 at the top of the bottom layer 1, a contact layer 3 at the top of the shock-absorbing layer 2, and two flexible cushioning pads 4 at the top of the contact layer 3 respectively corresponding to the heel area and the forefoot area of ​​the human body. The flexible cushioning pads 4 have several cavities inside, and each cavity is filled with an air cushion 5. The bottom layer 1 is embedded with fiber reinforcing ribs 6. Among them, by setting flexible cushioning pads 4 under the two key areas of heel and forefoot, a point-to-point differentiated shock absorption configuration is achieved; Specifically, when the heel is subjected to high-intensity impact, the flexible cushioning pad 4 in this area works in synergy with the internal air cushion 5 to provide deep deformation to absorb the impact. At the same time, the high-density TPU and wave-shaped fiber reinforcement 6 of the bottom layer 1 ensure stable support and prevent excessive collapse. During the forefoot push-off phase, the corresponding flexible cushioning pad 4 provides faster and more powerful energy feedback through its compression deformation and rebound to assist propulsion. This zoned reinforcement structure allows a single insole to simultaneously meet the dual needs of heel shock absorption and stability and forefoot rebound efficiency, thereby optimizing energy flow in the gait cycle, improving exercise efficiency and reducing local fatigue and injury risk. The fiber-reinforced ribs 6 are distributed in a wavy pattern inside the bottom layer 1; Among them, the fiber reinforcing ribs 6 are distributed in a wave-like pattern inside the bottom layer 1, which efficiently converts the longitudinal impact force and torsional stress that the insole receives during exercise into the elastic deformation energy of the material itself along the wave curve. It can provide compliant bending guidance to improve movement efficiency when the foot pushes off, and can also disperse the stress peak through the expansion of the wave structure under severe impact, preventing the material from fatigue fracture or permanent deformation due to local stress concentration. The upper surface of the contact layer 3 is covered with a skin-friendly surface 301, and a number of vent holes 302 are provided on the skin-friendly surface 301. Among them, the skin-friendly surface 301 establishes a low-irritation and comfortable contact interface with the skin of the foot through its soft and delicate material, effectively dispersing local pressure and reducing frictional heat accumulation, while the densely packed breathable holes 302 form an active microcirculation channel, which can promote the continuous exchange of moist air inside the shoe and dry air outside during the periodic pressure changes generated by foot movement, thereby working together to achieve a long-lasting dry foot environment and inhibit skin discomfort and microbial growth caused by stuffiness and dampness; The bottom layer 1 is made of high-density TPU material; Among them, the bottom layer 1, made of high-density TPU material, constructs a durable support platform that combines structural rigidity and toughness. Its high resilience and fatigue resistance can effectively resist repeated bending and impact deformation during exercise, ensuring that the insole maintains its precise shape and functional integrity during long-term use, thereby providing a stable mechanical foundation for the cushioning layer 2. The shock-absorbing layer 2 is made of silicone material; Among them, the unique high damping and viscoelastic properties of silicone can efficiently convert the intense kinetic energy generated by sports impact into gentle heat energy for dissipation, providing the foot with a deep, gradual and stable cushioning experience, protecting joints and soft tissues while avoiding instability caused by stiff rebound or energy retention. Contact layer 3 is made of antibacterial sponge material; Among them, the open porous structure of the sponge actively absorbs and disperses the pressure on the sole of the foot, achieving dynamic fit and tactile optimization. At the same time, the antibacterial properties of the material itself can continuously inhibit the colonization and reproduction of microorganisms in a humid and warm environment, thus synergistically constructing a skin-friendly interface that combines physical cushioning and biological cleaning protection. Flexible cushioning pad 4 is made of silicone gel material; Among them, the extremely low hardness and near-fluid slow deformation properties of organosilicon gel are used to form a dynamic buffer zone that can autonomously adapt to the pressure distribution at key stress points on the heel and forefoot.

[0019] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A multi-layer gradient cushioning sports insole, comprising a bottom layer (1), a cushioning layer (2) at the upper end of the bottom layer (1), and a contact layer (3) at the upper end of the cushioning layer (2), characterized in that: The upper end of the contact layer (3) is provided with two flexible cushioning pads (4) respectively corresponding to the heel area and the forefoot area of ​​the human body. The flexible buffer pad (4) has several cavities inside, and each cavity is filled with an air cushion (5). The bottom layer (1) is internally embedded with fiber reinforcing ribs (6).

2. The multi-layer gradient cushioning sports insole according to claim 1, characterized in that: The fiber reinforcing ribs (6) are distributed in a wavy pattern inside the bottom layer (1).

3. The multi-layer gradient cushioning sports insole according to claim 1, characterized in that: The upper surface of the contact layer (3) is covered with a skin-friendly surface (301), and a plurality of air vents (302) are provided on the skin-friendly surface (301).

4. The multi-layer gradient cushioning sports insole according to claim 1, characterized in that: The bottom layer (1) is made of high-density TPU material.

5. The multi-layer gradient cushioning sports insole according to claim 1, characterized in that: The shock-absorbing layer (2) is made of silicone material.

6. The multi-layer gradient cushioning sports insole according to claim 1, characterized in that: The contact layer (3) is made of antibacterial sponge material.

7. The multi-layer gradient cushioning sports insole according to claim 1, characterized in that: The flexible cushioning pad (4) is made of silicone gel material.

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