Silver-based fiber antibacterial shock-absorbing odor-resistant insole

Abstract

The utility model belongs to health care insole technical field, especially relates to a kind of silver base fibre antibacterial shock-absorbing deodorization insole.A kind of silver base fibre antibacterial shock-absorbing deodorization insole, including insole body, the insole body is sequentially laminated and is compounded with surface layer, antibacterial layer, buffer shock-absorbing layer, support bottom layer from top to bottom;Surface layer is breathable wear -resisting fabric;Antibacterial layer is the breathable antibacterial fabric woven by silver base antibacterial fibre;Buffer shock-absorbing layer is composed of elastic buffer material and is provided with at least one pressure relief protrusion in heel, forepaw area lower end face;It is provided with toe structure in toe area upper end face;Support bottom layer, by supporting material composition, is provided with support protrusion in its with the pressure relief protrusion corresponding position lower end face, and the support protrusion is hollow structure, and the pressure relief protrusion is embedded in support protrusion inner chamber.The utility model has good ventilation effect, can carry out pressure relief buffering to foot bottom protruding part and can realize sterilization deodorization.

Description

Technical Field

[0001] This utility model belongs to the field of health care insole technology, and in particular relates to a silver-based fiber antibacterial, shock-absorbing and odor-resistant insole. Background Technology

[0002] As the direct contact material between the foot and the shoe's internal environment, the core functions of insoles are to improve wearing comfort, provide cushioning and protection, and maintain a hygienic environment for the soles of the feet. Existing insoles often employ multi-layered composite structures, achieving their basic functions through the layering of different materials. For example, Chinese utility model patent CN216796702U discloses a breathable and comfortable insole, whose structure typically includes a surface mesh breathable layer, a middle elastic cushioning layer, and a bottom support layer. The mesh breathable layer is composed of polyurethane breathable foam, silver ion deodorizing pads, and breathable mesh pads, aiming to solve the problems of breathability and deodorization; the elastic cushioning layer provides cushioning through materials such as TPU pads and silicone foam pads.

[0003] However, insoles of this type still have significant shortcomings in practical applications, especially for users with athlete's foot, sweaty feet, or those with higher requirements for foot health, such as those with diabetic foot who need to maintain pressure to avoid foot abrasions, or those with gout who need to avoid stress on the toe bones. First, existing designs have limitations in terms of ventilation and sterilization. The silver ion deodorizing pads they use are mostly a single, independent layer, making it difficult to maintain and evenly distribute and release the silver ions, and the antibacterial effect easily diminishes after washing. More importantly, the breathability of the insoles relies heavily on static diffusion of the material, lacking an active air circulation mechanism. During walking, sweat and moisture easily accumulate inside the shoe, providing a warm, moist environment for the growth of fungi (such as Epidermophyton floccosum, which causes athlete's foot) and bacteria. Furthermore, the existing insole structure, with its tight contact between the toes, hinders ventilation, making it the most prone area for erosion and itching in athlete's foot sufferers. Traditional smooth insole surfaces cannot solve the problems of localized moisture and friction in this area.

[0004] Secondly, regarding shock absorption and protection, existing cushioning technologies primarily focus on providing overall, uniform softness, but fail to achieve precise protection for key stress points on the sole of the foot. For bony prominences such as the heel and metatarsal heads in the forefoot, even uniform cushioning materials can still lead to excessively high local pressure. This continuous high pressure not only affects comfort but also poses a potential risk of pressure ulcers for vulnerable groups such as those with diabetic foot and reduced foot sensation. Utility Model Content

[0005] To address the technical problems existing in the prior art, this application provides a silver-based fiber antibacterial, shock-absorbing, and odor-resistant insole that has good ventilation, can reduce pressure and cushion protruding parts of the sole, and can achieve sterilization and deodorization.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A silver-based fiber antibacterial, shock-absorbing, and odor-resistant insole, comprising an insole body, The insole body is composed of a top layer, an antibacterial layer, a cushioning and shock-absorbing layer, and a support bottom layer, layered from top to bottom. The outer layer is made of breathable and wear-resistant fabric; The antibacterial layer is a breathable antibacterial fabric woven from silver-based antibacterial fibers, wherein the silver-based antibacterial fibers are fibers with a surface coated with pure silver. The cushioning and shock-absorbing layer is made of elastic cushioning material, and at least one pressure-reducing protrusion is provided on the lower end surface of the heel and forefoot areas; a toe-spreading structure is provided on the upper end surface of the toe area, and the surface layer and antibacterial layer cover the toe-spreading structure. The supporting bottom layer is made of a supporting material, and a supporting protrusion is provided on its lower end face at a position corresponding to the pressure-reducing protrusion. The supporting protrusion has a hollow structure, and the pressure-reducing protrusion is embedded in the inner cavity of the supporting protrusion.

[0007] Preferably, the pressure-reducing protrusion and the support protrusion are respectively provided with vent holes that penetrate the buffer and shock-absorbing layer and the support bottom layer.

[0008] Preferably, the toe-separating structure is a toe groove formed on the upper surface of the buffer and shock-absorbing layer according to the toe position.

[0009] Preferably, a vent is provided between the two toe grooves, penetrating the buffer and shock-absorbing layer and supporting the bottom layer.

[0010] Preferably, a gap is left between the pressure-reducing protrusion and the inner cavity of the supporting protrusion.

[0011] Preferably, an anti-slip protrusion extending inward is provided on the outer side of the lower end face of the support base, a gap is left between the anti-slip protrusion and the support protrusion, and an air exchange channel connecting the inner and outer sides of the support protrusion is provided at the support protrusion.

[0012] Preferably, the insole body has an upwardly protruding arch support portion at the arch area.

[0013] Preferably, the insole body has an upwardly protruding heel covering portion at the heel area, and the heel covering portion is integrally formed with the arch support portion.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model sets up an independent antibacterial layer that is silver-plated using magnetron sputtering technology, which firmly binds silver elements to the fiber surface in atomic form. Compared with traditional silver ion soaking or coating pads, it has a broader antibacterial spectrum, longer-lasting antibacterial effect, and is washable. It can effectively inhibit the growth of microorganisms from the source and fundamentally solve the problems of shoe odor and athlete's foot infection.

[0015] 2. By setting up contoured toe grooves in the most ulcerated toe areas, the toes can be physically separated, effectively promoting air circulation between the toes, reducing friction and sweat buildup, and providing a targeted solution for toe care for patients with athlete's foot.

[0016] 3. By using the gap between the pressure-reducing protrusions and the inner cavity of the support protrusions at key stress points (metastatic heads and heels), an effective buffer stroke is provided for the prominent points of the foot bones, transforming the concentrated impact force generated during walking into gentle, progressive support, significantly reducing local peak pressure. This is of vital importance for protecting sensitive feet such as diabetic foot and preventing pressure ulcers.

[0017] 4. This utility model integrates a pressure-reducing structure with a ventilation system. By utilizing the natural stepping during walking, the pressure-reducing protrusion and the support protrusion form a highly efficient bellows structure. Through the preset ventilation holes and air exchange channels, the intake and exhaust of air inside the shoe are forced, forming an active ventilation cycle.

[0018] 5. The arch support, heel wrap, and anti-slip protrusions on the bottom together form a stable support system, ensuring the insole stays in place inside the shoe and preventing slippage. Combined with the soft cushioning material on top, it provides users with a comprehensive and comfortable wearing experience. Attached Figure Description

[0019] Figure 1 This is a top view of the structure of this utility model.

[0020] Figure 2 This is a bottom view of the structure of this utility model.

[0021] Figure 3 This is a top view of the supporting bottom layer of this utility model.

[0022] Figure 4 This is a bottom view of the buffer and shock-absorbing layer of this utility model.

[0023] Figure 5 This is a cross-sectional structural diagram of the insole body of this utility model.

[0024] In the picture: 1. The insole itself, 11. Surface layer 12. Antibacterial layer 13. Cushioning and shock-absorbing layer; 131. Pressure-reducing protrusion; 132. Toe groove; 133. Vent hole one; 134. Air vent. 14. Support bottom layer; 141. Support protrusion; 142. Second ventilation hole; 143. Anti-slip protrusion; 144. Ventilation channel; 145. Bottom protrusion; 146. Third ventilation hole. 15. Arch support area of ​​the foot. 16. Heel covering area. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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. Therefore, they should not be construed as limitations on this utility model. Example

[0027] See appendix Figure 1-5 As shown, a silver-based fiber antibacterial, shock-absorbing, and odor-resistant insole includes an insole body 1. The insole body 1 is composed of a top layer 11, an antibacterial layer 12, a cushioning and shock-absorbing layer 13, and a support bottom layer 14, which are stacked and composited from top to bottom. The layers are bonded and fixed together with an environmentally friendly adhesive.

[0028] The outer layer 11 is made of breathable and durable fabric, cut to fit the shape of the foot. The outer layer 11 can be made of existing quick-drying fiber fabric, Teslin fabric, or cotton-spandex blend. These materials have the advantages of moisture absorption and quick drying, wear resistance and durability, and skin-friendly comfort, and can quickly wick sweat to the antibacterial layer.

[0029] The antibacterial layer 12 is a breathable antibacterial fabric woven from silver-based antibacterial fibers. The matrix fiber of the silver-based antibacterial fibers is one of polyester, polyamide, or polypropylene fibers, and is formed by depositing a pure silver layer on its surface using a magnetron sputtering process. These synthetic fibers have advantages such as high strength, good abrasion resistance, and a strong bond with the silver layer, ensuring the durability of the antibacterial effect. Furthermore, it avoids chemical residues, making it more environmentally friendly and providing a long-lasting antibacterial effect. Because the antibacterial layer 12 is a breathable antibacterial fabric woven from silver-based antibacterial fibers, its surface is relatively smooth. To prevent slippage, a surface layer 11 is provided.

[0030] The cushioning and shock-absorbing layer 13 is made of elastic cushioning material, which can be made of PU foam, silicone foam or EVA foam. These materials are soft, have good resilience and can effectively absorb the impact force when walking.

[0031] See Figure 4 As shown, the upper surface of the cushioning and shock-absorbing layer 13 does not have any protrusions, but at least one pressure-reducing protrusion 131 is integrally molded on the lower end face of the cushioning and shock-absorbing layer 13 in the heel and forefoot areas. In this embodiment, a total of three pressure-reducing protrusions 131 are provided from the forefoot to the heel, two of which are correspondingly located at the metatarsal bones of the big toe and little toe, and one correspondingly located at the heel. The pressure-reducing protrusion 131 can be an arc-shaped protrusion structure or a cylindrical structure.

[0032] To separate the toes to some extent during walking and prevent aggravated ulceration due to sweating and friction, a toe-separating structure is provided on the upper surface of the toe area of ​​the cushioning and shock-absorbing layer 13 to allow the toes to spread apart. The surface layer 11 and the antibacterial layer 12 cover the toe-separating structure. The toe-separating structure can be a protrusion on the upper surface of the cushioning and shock-absorbing layer 13 that separates the toes. In this embodiment, the toe-separating structure is a toe groove 132 shaped according to the toe position on the upper surface of the cushioning and shock-absorbing layer 13. Each toe can enter the corresponding toe groove 132 during walking, and the cushioning and shock-absorbing layer 13 between adjacent grooves naturally forms a protrusion that isolates the toes, thereby achieving physical separation and promoting ventilation between the toes.

[0033] See Figure 2 , 3As shown, the supporting bottom layer 14 is made of a supporting material, such as high-density EVA, TPU, or rubber, which are strong, resistant to deformation, and durable. A supporting protrusion 141 is provided on the lower end face of the supporting bottom layer 14 at a position corresponding to the pressure-reducing protrusion 131. That is, the supporting protrusion 141 extends outward from the lower end face of the supporting bottom layer 14. The supporting protrusion 141 has a hollow structure. In this embodiment, the lower end of the supporting protrusion 141 is a sealed structure, and its upper end is an open structure. When the lower end face of the buffer and shock-absorbing layer 13 is bonded to the upper end face of the supporting bottom layer 14, the pressure-reducing protrusion 131 is precisely embedded in the inner cavity 141 of the supporting protrusion. There is a gap between the pressure-reducing protrusion 131 and the inner cavity of the support protrusion 141. This gap can be between the outer side of the pressure-reducing protrusion 131 and the inner wall of the inner cavity of the support protrusion 141, or between the lower end face of the pressure-reducing protrusion 131 and the bottom of the inner cavity of the support protrusion 141, or there can be gaps between the outer side and lower end face of the pressure-reducing protrusion 131 and the inner wall and bottom of the inner cavity of the support protrusion 141.

[0034] By incorporating pressure-reducing protrusions 131 and support protrusions 141, during walking, the insole experiences foot pressure. In areas without these protrusions, the foot directly applies pressure to the outer layer 11, antibacterial layer 12, cushioning and shock-absorbing layer 13, and support bottom layer 14, achieving a force balance. Most of the foot pressure is borne by the area without the pressure-reducing protrusions 131. In contrast, at locations with these protrusions (such as bony prominences, the big and little toes, and the heel), the foot applies pressure to the pressure-reducing protrusions 131 and contacts the support protrusions 141. Because a gap exists between the pressure-reducing protrusions 131 and 141, a cushioning stroke is provided, compressing the air within the gap and preventing hard contact. This transforms concentrated peak pressure into a gentle, gradual support force, effectively protecting sensitive areas. Therefore, most of the pressure points on the foot are located where there are no pressure relief protrusions 131 and support protrusions 141. The pressure on the big toe, little toe, and heel is relatively small, thus avoiding pain and pressure injury caused by excessive pressure on these areas in patients with athlete's foot, gout, or diabetic foot.

[0035] To further improve the breathability of this insole, ventilation holes 133 and 142 are respectively provided on the pressure-reducing protrusion 131 and the support protrusion 141, penetrating the cushioning and shock-absorbing layer 13 and the support bottom layer 14. Multiple ventilation holes 133 and 142 are provided, and they are respectively located on the bottom and side of the pressure-reducing protrusion 131 and the support protrusion 141.

[0036] To improve the stability of the support base 14 inside the shoe and enhance the breathability of the second ventilation hole 142, an anti-slip protrusion 143 extending inward is integrally formed on the outer side of the lower end face of the support base 14. A gap is left between the anti-slip protrusion 143 and the support protrusion 141, and a ventilation channel 144 connecting the inner and outer sides of the support protrusion 141 is provided at the support protrusion 141. The anti-slip protrusion 143 can be designed with a wave-like structure, with the ventilation channel 144 being the lowest point of this wave. By contacting the bottom of the shoe cavity with the anti-slip protrusion 143, the stability of the insole body 1 inside the shoe can be improved, preventing it from slipping. Furthermore, the anti-slip protrusion 143 and the support protrusion 141 together support the insole body 1 and the foot, improving support stability while also preventing poor ventilation of the second ventilation hole 142.

[0037] As described above, in order to further improve the stability of the insole body 1 and foot support, a bottom protrusion 145 is integrally formed on the lower end face of the support bottom layer 14 at the arch. The bottom protrusion 145 is a solid structure compared to the support protrusion 141. The bottom of the bottom protrusion 145 can be flush with the support protrusion 141 to achieve joint support.

[0038] To further improve breathability, a ventilation hole 146 is provided at the bottom protrusion 145, penetrating the supporting bottom layer 14 and the cushioning and shock-absorbing layer 13. A ventilation hole 134 is provided between the two toe grooves 132, penetrating the cushioning and shock-absorbing layer 13 and the supporting bottom layer 14.

[0039] See Figure 1 As shown, to improve arch support, the insole body 1 has an upwardly protruding arch support portion 15 at the arch area. The upper layer 11, antibacterial layer 12, cushioning and shock-absorbing layer 13, and support bottom layer 14 at the arch support portion 15 are layered and matched in shape from top to bottom. To prevent ankle sprains, the insole body 1 has an upwardly protruding heel cover portion 16 at the heel area. The heel cover portion 16 is integrally formed with the arch support portion 15. Similar to the arch support portion 15, the upper layer 11, antibacterial layer 12, cushioning and shock-absorbing layer 13, and support bottom layer 14 at the heel cover portion 16 are layered and matched in shape from top to bottom.

[0040] The working principle and process of this embodiment are as follows: The insole body 1 is placed inside the shoe, with the support protrusion 141 and the bottom protrusion 145 abutting against the bottom of the shoe, thus fixing the insole body 1 to a certain extent. When the foot steps on the insole body 1 and walks, the toes are located in the corresponding toe grooves 132 to separate the toes to a certain extent, thereby preventing excessive sweating between the toes and causing severe ulceration. The big toe, little toe, and heel step on the pressure-reducing protrusions 131 respectively, and most of the pressure on the foot is borne by the part outside the pressure-reducing protrusions 131, thereby reducing the force on the big toe, little toe, and heel. When walking, the big toe, little toe, and heel press down on the pressure-reducing protrusions 131 and the support protrusions 141, and the air between them passes through the ventilation holes 133 and 145. 142. Air is discharged through the ventilation channel 144. When the foot is lifted, the pressure-reducing protrusion 131 and the support protrusion 141 return to their original positions. Air can enter the gap between the pressure-reducing protrusion 131 and the support protrusion 141 through the ventilation channel 144, the first ventilation hole 133, and the second ventilation hole 142. It can also directly enter the gap between the pressure-reducing protrusion 131 and the support protrusion 141 through the surface layer 11, the antibacterial layer 12, and the cushioning and shock-absorbing layer 13, thereby achieving ventilation at the foot. In addition, when walking, the arch area can be ventilated through the ventilation hole 134 and the third ventilation hole 146 to avoid excessive moisture inside the shoe caused by foot sweat. For bacteria generated on the sole of the foot and inside the shoe, the pure silver on the antibacterial layer 12 can achieve a bactericidal effect to avoid odor caused by excessive bacterial growth.

[0041] 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. A silver-based fiber antibacterial, shock-absorbing, and odor-resistant insole, comprising an insole body, characterized in that: The insole body is composed of a top layer, an antibacterial layer, a cushioning and shock-absorbing layer, and a support bottom layer, layered from top to bottom. The outer layer is made of breathable and wear-resistant fabric; The antibacterial layer is a breathable antibacterial fabric woven from silver-based antibacterial fibers, wherein the silver-based antibacterial fibers are fibers with a surface coated with pure silver. The cushioning and shock-absorbing layer is made of elastic cushioning material, and at least one pressure-reducing protrusion is provided on the lower end surface of the heel and forefoot areas; a toe-spreading structure is provided on the upper end surface of the toe area, and the surface layer and antibacterial layer cover the toe-spreading structure. The supporting bottom layer is made of a supporting material, and a supporting protrusion is provided on its lower end face at a position corresponding to the pressure-reducing protrusion. The supporting protrusion has a hollow structure, and the pressure-reducing protrusion is embedded in the inner cavity of the supporting protrusion.

2. The silver-based fiber antibacterial, shock-absorbing, and odor-resistant insole according to claim 1, characterized in that: Ventilation holes penetrating the buffer and shock-absorbing layer and the support bottom layer are respectively provided on the pressure-reducing protrusion and the support protrusion.

3. The silver-based fiber antibacterial, shock-absorbing, and odor-resistant insole according to claim 1, characterized in that: The toe-separating structure is a toe groove formed on the upper surface of the buffer and shock-absorbing layer according to the shape of the toe position.

4. The silver-based fiber antibacterial, shock-absorbing, and odor-resistant insole according to claim 3, characterized in that: A ventilation hole is provided between the two toe grooves, which penetrates the buffer and shock-absorbing layer and supports the bottom layer.

5. The silver-based fiber antibacterial, shock-absorbing, and odor-resistant insole according to claim 1, characterized in that: A gap is left between the pressure-reducing protrusion and the inner cavity of the supporting protrusion.

6. The silver-based fiber antibacterial, shock-absorbing, and odor-resistant insole according to claim 1, characterized in that: An anti-slip protrusion extending inward is provided on the outer side of the lower end face of the support base. A gap is left between the anti-slip protrusion and the support protrusion, and an air exchange channel connecting the inner and outer sides of the support protrusion is provided at the support protrusion.

7. The silver-based fiber antibacterial, shock-absorbing, and odor-resistant insole according to claim 1, characterized in that: The insole body has an upwardly protruding arch support portion at the arch area.

8. The silver-based fiber antibacterial, shock-absorbing, and odor-resistant insole according to claim 7, characterized in that: The insole body has an upwardly protruding heel covering part at the heel area, and the heel covering part is integrally formed with the arch support part.

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