Multifunctional insole and shoe

By combining far-infrared fabric layers and elastic material layers in the insole, and designing multiple rows of shock-absorbing units and geometric structures, the problem of insufficient shock absorption in existing insoles is solved, achieving better shock absorption and comfort, and improving foot stability and safety.

CN224155203UActive Publication Date: 2026-04-24ZULIJIAN SHOE IND DEVELOPMENT CO LTD BEIJING BRANCH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZULIJIAN SHOE IND DEVELOPMENT CO LTD BEIJING BRANCH
Filing Date
2025-06-04
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing multi-functional insoles cannot provide sufficient shock absorption, causing feet to feel tired after long periods of walking or exercise.

Method used

Design a multifunctional insole comprising a far-infrared fabric layer and an elastic material layer. The bottom surface of the elastic material layer has multiple rows of shock-absorbing units. Each row of shock-absorbing units contains multiple quadrilateral structures, combined with linear and circular groove designs to optimize pressure distribution and absorb impact.

Benefits of technology

It improves shock absorption and comfort, reduces fatigue during long walks or exercise, and provides anti-slip and stability, enhancing foot support and protection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a multifunctional insole and a pair of shoes, and relates to the technical field of daily supplies. The multifunctional insole comprises a far infrared cloth layer and an elastic material layer. Wherein the elastic material layer can provide softness and elasticity and absorb impact force generated when the foot walks or moves, and the fatigue feeling generated when the foot walks or moves for a long time is relieved. Moreover, the top surface of the elastic material layer is connected with the far infrared cloth layer, and the bottom surface of the elastic material layer is provided with a plurality of columns of damping units. Specifically, a plurality of quadrilateral structures are arranged in each column of damping units, and the pressure distribution is further optimized on the premise that the structural stability is guaranteed through the geometrical shape design of the quadrilateral structures. Each quadrilateral structure is recessed at the side length part to form a linear groove, so that the quadrilateral structure can be better bent and deformed, and the natural motion trail of the foot sole can be better fitted; and moreover, each quadrilateral structure is recessed at the vertex angle to form a circular groove, so that impact force transmitted from multiple directions is intensively absorbed and differentiated, and effective shock absorption is realized.
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Description

Technical Field

[0001] This utility model relates to the field of daily necessities technology, and more specifically, to a multifunctional insole and a shoe. Background Technology

[0002] Shoes are essential for people's safety when walking, and multifunctional insoles, as an important part of the shoe's interior, primarily function to improve the shoe's fit.

[0003] However, the inventors discovered that existing multi-functional insoles cannot provide sufficient shock absorption, causing feet to feel tired after long periods of walking or exercise. Utility Model Content

[0004] The purpose of this invention is to provide a multifunctional insole and shoe that can effectively improve shock absorption and comfort, thereby reducing fatigue during long walks or exercise.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] In a first aspect, this utility model provides a multifunctional insole, comprising a far-infrared fabric layer and an elastic material layer; wherein, the top surface of the elastic material layer is connected to the far-infrared fabric layer, and the bottom surface of the elastic material layer is provided with multiple rows of shock-absorbing units, and each row of shock-absorbing units is provided with multiple quadrilateral structures; each quadrilateral structure has a recessed linear groove at its side length and a recessed circular groove at its apex.

[0007] In an optional embodiment, the multifunctional insole includes a foot portion, an arch portion, and a heel portion connected in sequence, wherein the thickness of the arch portion is greater than that of the heel portion, and the thickness of the heel portion is greater than that of the foot portion.

[0008] In an optional embodiment, the difference between the thickness of the lowest point of the ball of the foot and the thickness of the lowest point of the heel ranges from 1 to 3 mm.

[0009] In an optional embodiment, an elastic material layer is used to extend upward at positions corresponding to the arch and heel to form a protective portion.

[0010] In an optional implementation, the protective part is U-shaped.

[0011] In an alternative embodiment, the length of the protective portion extending upward gradually increases along the direction close to the heel.

[0012] In an optional implementation, the top surface of the far-infrared fabric layer is provided with an anti-slip texture.

[0013] In an optional embodiment, an antibacterial drug is disposed within the far-infrared fabric layer.

[0014] In an optional implementation, the elastic material layer is made of PU material.

[0015] Secondly, this utility model provides a shoe, including a sole, an upper, and a multifunctional insole as described in any of the foregoing embodiments; wherein the upper is connected to the sole, and the multifunctional insole is located on the inner top surface of the sole.

[0016] The beneficial effects of the multifunctional insole and shoes provided in this embodiment of the invention include:

[0017] This invention provides a multifunctional insole and shoe. The multifunctional insole includes a far-infrared fabric layer and an elastic material layer. The elastic material layer provides softness and elasticity, absorbing the impact force generated by the foot during walking or exercise, reducing fatigue during prolonged walking or exercise. The top surface of the elastic material layer is connected to the far-infrared fabric layer, and the bottom surface of the elastic material layer has multiple rows of shock-absorbing units. Specifically, each row of shock-absorbing units contains multiple quadrilateral structures, whose geometric design further optimizes pressure distribution while ensuring structural stability. Each quadrilateral structure has a recessed linear groove along its sides to facilitate better bending and deformation, conforming more closely to the natural movement trajectory of the foot; and each quadrilateral structure has a recessed circular groove at its apex to concentrate and disperse impact forces transmitted from multiple directions, achieving effective shock absorption. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of the multifunctional insole provided in this embodiment from a first-view perspective;

[0020] Figure 2 This is a structural schematic diagram of the multifunctional insole provided in this embodiment from a second perspective;

[0021] Figure 3 This is a structural schematic diagram of the multifunctional insole provided in this embodiment from a third-person perspective.

[0022] Icons: 10 - Multifunctional insole; 100 - Far-infrared fabric layer; 300 - Elastic material layer; 310 - Shock absorption unit; 311 - Quadrilateral structure; 313 - Linear groove; 315 - Circular groove; 330 - Protective part; 510 - Forefoot part; 530 - Arch part; 550 - Heel part. Detailed Implementation

[0023] The multi-functional insoles in related technologies cannot provide sufficient shock absorption, causing foot fatigue after long periods of walking or exercise.

[0024] To address the aforementioned issues, this invention provides a multifunctional insole and shoe that effectively improves shock absorption and comfort, thereby reducing fatigue during prolonged walking or exercise.

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0030] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0031] The following will describe in detail the overall structure, working principle, and technical effects of the multifunctional insole and shoe provided by this utility model through embodiments and in conjunction with the accompanying drawings.

[0032] Figure 1 This is a structural schematic diagram of the multifunctional insole 10 provided in this embodiment from a first-view perspective. Figure 2 This is a structural schematic diagram of the multifunctional insole 10 provided in this embodiment from a second perspective. Figure 3 This is a structural schematic diagram of the multifunctional insole 10 provided in this embodiment from a third-view perspective.

[0033] Please see Figures 1 to 3 This utility model provides a multifunctional insole 10, applied to shoes, which can effectively improve shock absorption and comfort, thereby reducing fatigue during long-term walking or exercise. The shoes can specifically be athletic shoes, casual shoes, or hiking shoes, etc. The shoes include a sole, an upper, and the multifunctional insole 10. The upper is connected to the sole, and the multifunctional insole 10 is located on the inner top surface of the sole.

[0034] The multifunctional insole 10 includes a far-infrared fabric layer 100 and an elastic material layer 300. It should be noted that the far-infrared fabric layer 100 emits far-infrared rays to promote blood circulation in the feet, and also has antibacterial properties, reducing odor and bacterial growth, keeping feet dry and comfortable. The elastic material layer 300 provides softness and elasticity, absorbing the impact generated during walking or exercise, reducing fatigue during prolonged walking or exercise. The top surface of the elastic material layer 300 is connected to the far-infrared fabric layer 100.

[0035] Based on the above, the bottom surface of the elastic material layer 300 is provided with multiple rows of damping units 310. Each row of damping units 310 contains multiple quadrilateral structures 311, which, through geometric design, further optimize pressure distribution while ensuring structural stability. Each quadrilateral structure 311 has a recessed linear groove 313 at its side length to facilitate better bending and deformation, and to better conform to the natural movement trajectory of the foot; furthermore, each quadrilateral structure 311 has a recessed circular groove 315 at its apex to concentrate and disperse the impact force transmitted from multiple directions, thereby achieving effective shock absorption.

[0036] Based on the above configuration, that is, to explain, the multifunctional insole 10 provided by this utility model, through the combination of far-infrared fabric layer 100 and elastic material layer 300, not only utilizes far-infrared rays to promote blood circulation in the feet, reduce odor and keep the feet dry and comfortable, but also utilizes elastic material layer 300 to provide excellent shock absorption performance, reducing impact and fatigue during walking or exercise. Furthermore, through the design of multiple rows of shock-absorbing units 310 and quadrilateral structure 311 at the bottom of elastic material layer 300, combined with linear grooves 313 to enhance flexibility and circular grooves 315 to concentrate impact absorption, uniform pressure distribution and multi-directional cushioning are achieved, further improving shock absorption performance.

[0037] Additionally, it should be noted that the design of the linear groove 313 and the circular groove 315 provides extra friction between the multifunctional insole 10 and the sole. The linear groove 313 enhances grip by increasing the surface texture, while the recessed design at the apex of the circular groove 315 creates a suction cup-like adsorption effect, preventing the multifunctional insole 10 from sliding inside the shoe, thereby achieving good anti-slip function and improving wearing stability and safety.

[0038] Correspondingly, the top surface of the far-infrared fabric layer 100 is provided with an anti-slip texture, which effectively prevents the foot from slipping on the multifunctional insole 10 by increasing the friction between the sole of the foot and the multifunctional insole 10, thereby improving stability and safety when wearing the shoes, and providing more reliable support, especially in sports or slippery environments. Specifically, the anti-slip texture can be a striped texture, a dot matrix texture, a wavy texture, or a honeycomb texture.

[0039] Furthermore, the far-infrared fabric layer 100 contains antibacterial agents, such as natural or synthetic antibacterial ingredients like silver ions, bamboo charcoal extract, or tea polyphenols. Understandably, these antibacterial agents can effectively inhibit the growth of bacteria and fungi, reducing odor problems caused by sweat and moisture.

[0040] Furthermore, in the embodiments provided by this utility model, the base fabric of the far-infrared cloth layer 100 is made of yarn, and far-infrared ceramic powder is disposed within it. It should be noted that the far-infrared ceramic powder can absorb the heat emitted by the human body and re-emit far-infrared rays with a wavelength of 4-16μm. These far-infrared rays can penetrate into subcutaneous tissue, promote local blood circulation, accelerate metabolism, and have a certain effect of keeping warm and relieving fatigue.

[0041] Please see Figure 1 The multifunctional insole 10 includes a foot portion 510, an arch portion 530, and a heel portion 550 connected sequentially. To better conform to the physiological curves of the foot, the arch portion 530 is thicker than the heel portion 550, and the heel portion 550 is thicker than the foot portion 510. Understandably, the multifunctional insole 10 is designed with the arch portion 530 being the thickest to enhance support, reduce arch collapse, and alleviate plantar fasciitis; the heel portion 550 is next in thickness to absorb impact and protect the joints; and the foot portion 510 is the thinnest to maintain flexibility and avoid affecting toe movement. Optionally, the foot portion 510, arch portion 530, and heel portion 550 are smoothly connected in sequence.

[0042] Furthermore, the difference in thickness between the lowest point of the forefoot portion 510 and the lowest point of the heel portion 550 ranges from 1 to 3 mm. It should be noted that this difference in thickness not only achieves optimal horizontal comfort for the human foot and provides balance support, but also effectively prevents the body from leaning forward or backward while wearing the garment, thereby ensuring gait stability, reducing joint pressure, and improving the overall wearing experience. For example, the thickness of the lowest point of the forefoot portion 510 is 6 mm, and the thickness of the lowest point of the heel portion 550 is 8 mm.

[0043] To enhance stability and safety during wear, the elastic material layer 300 extends upwards at positions corresponding to the arch 530 and heel 550 to form a protective portion 330. In some embodiments, the protective portion 330 is U-shaped, which better wraps around the arch and heel 550, providing stable support and effectively preventing ankle sprains. Furthermore, the upward extension length of the protective portion 330 gradually increases along the direction close to the heel 550, thereby enhancing the wrapping effect on the wearer's arch and heel 550, strengthening the ankle sprain prevention function, and ensuring greater comfort and safety for the user during exercise or walking.

[0044] Considering the excellent elasticity and softness of PU (polyurethane) material, it can effectively absorb the impact generated by walking or sports, reducing fatigue from prolonged wear while providing a comfortable support experience. The elastic material layer 300 is made of PU material. Furthermore, it should be noted that PU material has excellent resistance to temperature changes and stress changes, maintaining stable physical properties in high or low temperature environments.

[0045] This invention provides a multifunctional insole 10 and a shoe. The multifunctional insole 10 includes a far-infrared fabric layer 100 and an elastic material layer 300. The elastic material layer 300 provides softness and elasticity, absorbing the impact force generated by the foot during walking or exercise, reducing fatigue during prolonged walking or exercise. The top surface of the elastic material layer 300 is connected to the far-infrared fabric layer 100, and the bottom surface of the elastic material layer 300 is provided with multiple rows of shock-absorbing units 310. Specifically, each row of shock-absorbing units 310 contains multiple quadrilateral structures 311, which, through geometric design, further optimize pressure distribution while ensuring structural stability. Each quadrilateral structure 311 has a recessed linear groove 313 at its side length to facilitate better bending and deformation, conforming more closely to the natural movement trajectory of the foot; and each quadrilateral structure 311 has a recessed circular groove 315 at its apex to concentrate and disperse the impact force transmitted from multiple directions, achieving effective shock absorption.

[0046] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A multifunctional insole, characterized in that, It includes a far-infrared fabric layer (100) and an elastic material layer (300); wherein, the top surface of the elastic material layer (300) is connected to the far-infrared fabric layer (100), and the bottom surface of the elastic material layer (300) is provided with multiple rows of damping units (310), and multiple quadrilateral structures (311) are arranged in each row of damping units (310); each quadrilateral structure (311) has a recessed linear groove (313) at its side length and a recessed circular groove (315) at its apex corner.

2. The multifunctional insole according to claim 1, characterized in that, The multifunctional insole (10) includes a foot part (510), an arch part (530) and a heel part (550) connected in sequence, and the thickness of the arch part (530) is greater than that of the heel part (550), and the thickness of the heel part (550) is greater than that of the foot part (510).

3. The multifunctional insole according to claim 2, characterized in that, The difference between the thickness of the lowest point of the ball of the foot (510) and the thickness of the lowest point of the heel (550) is between 1 and 3 mm.

4. The multifunctional insole according to claim 2, characterized in that, The elastic material layer (300) extends upward to form a protective portion (330) at a position corresponding to the arch portion (530) and the heel portion (550).

5. The multifunctional insole according to claim 4, characterized in that, The protective part (330) is U-shaped.

6. The multifunctional insole according to claim 4, characterized in that, Along the direction close to the heel (550), the length of the protective part (330) extending upward gradually increases.

7. The multifunctional insole according to any one of claims 1 to 6, characterized in that, The top surface of the far-infrared fabric layer (100) is provided with an anti-slip texture.

8. The multifunctional insole according to any one of claims 1 to 6, characterized in that, Antibacterial drugs are provided in the far-infrared fabric layer (100).

9. The multifunctional insole according to any one of claims 1 to 6, characterized in that, The elastic material layer (300) is made of PU material.

10. A shoe, characterized in that, The shoe includes a sole, an upper, and a multifunctional insole (10) as described in any one of claims 1-9; wherein the upper is connected to the sole, and the multifunctional insole (10) is located on the inner top surface of the sole.