Insole self-adaptive to shape of sole

Abstract

The utility model provides an insole capable of self-adapting to the shape of a foot sole, which comprises an insole body, a plurality of air holes arranged on the insole body in a penetrating manner, and a plurality of air holes fixedly arranged on the lower end surface of the insole body, the annular elastic part is arranged on the upper end face of the base and corresponds to the air holes in position, the flat-bottom contact plate is fixedly arranged on the lower end face of the annular elastic part, the cavity is formed between the annular elastic part and the flat-bottom contact plate and communicated with the air holes, and the auxiliary air holes are formed in the annular elastic part and communicated with the cavity. The annular elastic part is an arc-shaped part or a conical part, so that the air permeability of the insole body can be improved during walking, the auxiliary air holes cannot be in contact with an insole to close the circulation of the air holes, the air holes are not easy to block, and the air permeability of the air holes to the insole body is not easy to influence.

Description

Technical Field

[0001] This utility model relates to the field of insole technology, specifically to an insole that adapts to the shape of the foot sole. Background Technology

[0002] Insoles provide extra support and comfort for the feet. Especially during long walks, insoles can relieve foot fatigue and make the feet more comfortable. Wearing insoles helps keep the inside of shoes clean and tidy, reducing dirt and wear. Different foot shapes require different insole support. Flat feet, high arches, and collapsed arches require choosing corresponding insoles to achieve the best support and comfort.

[0003] Functional insoles are one of the main development trends. By selecting materials and designing structures, the cushioning, softness, support, and breathability of insoles can be improved. Currently, the breathability of insoles is mostly achieved by directly setting multiple ventilation holes through the forefoot. However, after the insole is placed inside the shoe, the bottom of the insole easily adheres to the surface of the sole, especially when subjected to foot pressure, which can easily block the ventilation holes and thus affect the breathability of the insole. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing an insole that adapts to the shape of the foot.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an insole that adapts to the shape of the foot sole, comprising an insole body, a plurality of ventilation holes formed through the insole body, an annular elastic portion fixedly disposed on the lower end face of the insole body and corresponding to the positions of each ventilation hole, a flat bottom contact plate fixedly disposed on the lower end face of the annular elastic portion, a cavity formed between the annular elastic portion and the flat bottom contact plate and respectively connected to each ventilation hole, and a plurality of auxiliary air holes formed on the annular elastic portion and connected to the cavity, wherein the annular elastic portion is an arc-shaped portion or a conical portion.

[0006] A further improvement is that at least three limiting posts are provided on the lower end face of the insole body within the cavity, with each limiting post arranged equidistantly in a ring outside the ventilation holes.

[0007] A further improvement is that the limiting post is an arc-shaped post.

[0008] A further improvement is that the limiting post is a rubber post or a nylon post.

[0009] A further improvement is that the annular elastic part is a rubber part or a silicone part.

[0010] A further improvement is that the auxiliary air hole is a tapered hole.

[0011] A further improvement is that a deodorizing layer is provided at the lower end of the insole body on the outside of each annular elastic part.

[0012] A further improvement is that the deodorizing layer is an activated carbon cotton layer, and the deodorizing layer has a clearance groove for avoiding the annular elastic part.

[0013] A further improvement is that an arch support plate is provided on the insole body.

[0014] A further improvement is that the insole body includes a flexible layer and a cork layer arranged from top to bottom.

[0015] The beneficial effects of this utility model after adopting the above technical solution are as follows: After the insole is placed inside the shoe, the flat contact plate contacts the surface of the insole, and the annular elastic part separates the flat contact plate from the insole body, thereby forming a cavity. This allows the auxiliary air holes to connect with the ventilation holes. When the annular elastic part is located on the forefoot part of the insole body, as the forefoot strikes the ground during walking, it compresses the annular elastic part, causing elastic deformation. The compression of the cavity allows gas to circulate between the ventilation holes and auxiliary air holes. When the forefoot leaves the ground, the annular elastic part releases its elasticity. Potential energy is restored, thereby pushing the flat contact plate away from the lower end of the insole body to form a cavity. During this process, gas enters the cavity through the auxiliary air holes or ventilation holes. Through repeated stepping and lifting off the ground, the cavity is repeatedly compressed, thereby repeatedly promoting the flow of gas in the auxiliary air holes and ventilation holes. This can improve the breathability of the insole body when walking (or when not wearing the insole). Since each auxiliary air hole is located on the side end of the annular elastic part, the auxiliary air holes will not contact the insole of the shoe and block the flow of the ventilation holes. It is not easy to block the ventilation holes, thus not easily affecting the breathability of the insole body.

[0016] Further effects: The purpose of the arc-shaped or conical part of the annular elastic section is mainly to separate the flat contact plate and the lower end face of the insole body, thereby forming a cavity that allows the auxiliary air hole and the ventilation hole to connect. Through the elastic effect of the annular elastic section, the flat contact plate moves away from the lower end face of the insole body again after being compressed. As the foot is stepped on, the annular elastic section is repeatedly compressed and rebounded, allowing air to enter the cavity from the auxiliary air hole and connect with the ventilation hole.

[0017] Further benefits: The ring-shaped elastic part not only provides elastic compression and elastic rebound, but also cushions the foot through elasticity, reducing the occurrence of foot discomfort compared to setting rigid protrusions.

[0018] Further benefits: The limiting posts can limit the distance the flat contact plate can approach the lower end of the insole body when the foot presses down on the insole body, compressing the cavity and bringing it closer to the lower end of the insole body. When the flat contact plate abuts against each limiting post, a space can also be formed between the limiting post and the flat contact plate, preventing the flat contact plate from blocking the ventilation holes. It can also further prevent the flat contact plate from getting too close to the lower end of the insole body, reducing the phenomenon of the annular elastic part sinking and failing to bounce back.

[0019] Further benefits: The deodorizing layer is located on the outside of the annular elastic part. When gas flows between the auxiliary air holes and the ventilation holes, the deodorizing layer can reduce odors inside the shoe, insole, or sole, thereby achieving a deodorizing effect. In addition, the activated carbon cotton layer also has soft properties. The softness increases with the increase of its thickness, which can improve the cushioning effect of the forefoot while reducing odors.

[0020] Further benefits: The cork layer provides a high degree of fit and can indent with the pressure of the foot after repeated wear, allowing the foot to fit more closely to the insole body. It can automatically adapt to the individual's foot shape and provide good support. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0022] Figure 1 This is a bottom view of the present invention;

[0023] Figure 2 This is a top view of the present invention;

[0024] Figure 3 This is a front view of the present invention;

[0025] Figure 4 This is a front sectional view of the insole body in this utility model;

[0026] Figure 5 This is a bottom view of the limiting post and the vent hole in this utility model;

[0027] Figure 6 It corresponds Figure 4 Enlarged view of part A.

[0028] Explanation of reference numerals in the attached drawings: 1. Insole body; 2. Ventilation hole; 3. Annular elastic part; 4. Flat bottom contact plate; 5. Cavity; 6. Auxiliary air hole; 7. Limiting post; 8. Deodorizing layer; 9. Arch support plate; 10. Flexible layer; 11. Cork layer; 12. Avoidance groove. Detailed Implementation

[0029] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0030] See Figures 1 to 6 As shown, the technical solution adopted in this specific embodiment is: an insole that adapts to the shape of the foot sole, including an insole body 1, a plurality of ventilation holes 2 that are opened through the insole body 1, an annular elastic part 3 that is fixedly disposed on the lower end surface of the insole body 1 and corresponds to the position of each ventilation hole 2, a flat bottom contact plate 4 that is fixedly disposed on the lower end surface of the annular elastic part 3, a cavity 5 formed between the annular elastic part 3 and the flat bottom contact plate 4 and connected to each ventilation hole 2, and a plurality of auxiliary air holes 6 that are opened on the annular elastic part 3 and connected to the cavity 5. The annular elastic part 3 is an arc-shaped part or a conical part.

[0031] Ventilation holes 2 are located at the forefoot position of the insole body 1, but can also be placed in other areas for ventilation. The annular elastic part 3 is fixed to the lower surface of the insole body 1 by adhesive or hot pressing. The flat contact plate 4 can be bonded to the annular elastic part 3, or fixed by pressing or hot-melt welding. The elastic coefficient of the annular elastic part 3 only needs to be sufficient to push the flat contact plate 4 away from the lower surface of the insole body 1 when the foot is not pressing on it, thus forming a cavity 5. Auxiliary air holes 6 are integrally formed with the annular elastic part 3, or perforated after the annular elastic part 3 is manufactured using a perforating machine or manually. The flat contact plate 4 can be made of the same material as the annular elastic part 3, in which case the flat contact plate 4, the annular elastic part 3, and the auxiliary air holes 6 are integrally formed, or it can be made of a flat plate that is not easily deformed (such as nylon).

[0032] At least three limiting posts 7 are provided on the lower end face of the insole body 1 within the cavity 5. Each limiting post 7 is equidistantly arranged in a ring outside the ventilation holes 2. The height of the limiting posts 7 is less than the distance between the flat contact plate 4 and the insole body 1. The height is only sufficient to prevent the flat contact plate 4 from blocking the ventilation holes 2 and to prevent the curved elastic part from failing to rebound elastically due to indentation. The number of limiting posts 7 can also be four.

[0033] The limiting post 7 is an arc-shaped post. The arc-shaped limiting post 7 is as follows: Figure 6 As shown, it is set outward in an arc shape from the position of vent 2.

[0034] The limiting post 7 can be a rubber post or a nylon post. Alternatively, the limiting post 7 can be divided into two parts: the end connecting to the insole body 1 can be made of nylon, and the end near the flat contact plate 4 can be made of rubber, thus providing support and reducing foot discomfort. The limiting post 7 is connected to the lower surface of the insole body 1 by adhesive or heat fusion.

[0035] The annular elastic part 3 is a rubber part or a silicone part.

[0036] The auxiliary air hole 6 is a conical hole.

[0037] The lower end of the insole body 1 is provided with a deodorizing layer 8 on the outside of each annular elastic part 3.

[0038] The deodorizing layer 8 is an activated carbon cotton layer, and a clearance groove 12 is provided on the deodorizing layer 8 to avoid the annular elastic part 3. The deodorizing layer 8 can also be a bamboo charcoal cotton layer. The deodorizing layer 8 is fixed to the lower end surface of the insole body 1 by adhesive or hot melting. When the annular elastic part 3 is located at the forefoot position, the deodorizing layer 8 is also located at the forefoot position. The thickness of the deodorizing layer 8 can be 5mm-15mm. When the thickness is 7mm-15mm, a groove with the same shape as the deodorizing layer 8 can be opened on the lower end surface of the insole body 1. At this time, the annular elastic part 3, the limiting post 7, and the flat contact plate 4 are all located in the groove. Then, the deodorizing layer 8 is installed in the groove, so that part of the deodorizing layer 8 is exposed.

[0039] The insole body 1 is provided with an arch support plate 9. The arch support plate 9 is a nylon sheet. The arch support plate 9 is fixedly installed at the arch position of the insole body 1 by means of adhesive bonding, heat fusion, or heat pressing. The arch support plate 9 can provide support to the arch position when worn, reducing the occurrence of flat feet in users.

[0040] The insole body 1 includes a flexible layer 10 and a cork layer 11 arranged from top to bottom. The flexible layer 10 can be a sponge layer, an EVA layer, or a combination thereof. The flexible layer 10 and the cork layer are fixedly connected by adhesive or hot pressing. Breathing holes 2 are formed through the flexible layer 10 and the cork layer 11. An annular elastic part 3 and a limiting post 7 are also included. The deodorizing layer 8 is disposed on the lower end face of the cork layer 11.

[0041] The working principle of this invention is as follows: After the insole is placed inside the shoe, the flat contact plate 4 contacts the surface of the insole. The annular elastic part 3 separates the flat contact plate 4 from the insole body 1, forming a cavity 5. This allows the auxiliary air holes 6 to connect with the ventilation holes 2. When the annular elastic part 3 is located on the forefoot area of ​​the insole body 1, as the forefoot strikes the ground during walking, it compresses and deforms. The compression of the cavity 5 allows gas to flow between the ventilation holes 2 and the auxiliary air holes 6. When the forefoot leaves the ground, the annular elastic part 3 releases its elastic potential energy and resets. Pushing the flat contact plate 4 away from the lower end face of the insole body 1 forms a cavity 5. During this process, gas enters the cavity 5 through the auxiliary air hole 6 or the ventilation hole 2. Through repeated stepping and lifting off the ground, the cavity 5 is repeatedly compressed, thereby repeatedly promoting the flow of gas in the auxiliary air hole 6 and the ventilation hole 2. This can improve the breathability of the insole body 1 when walking (or when not wearing the insole). Since each auxiliary air hole 6 is located on the side end face of the annular elastic part 3, the auxiliary air hole 6 will not contact the insole of the shoe and block the flow of the ventilation hole 2. It is not easy to block the ventilation hole 2, thus not easily affecting the breathability of the insole body 1.

[0042] The purpose of the arc-shaped or conical part of the annular elastic part 3 is mainly to separate the flat contact plate 4 and the lower end face of the insole body 1, thereby forming a cavity 5 so that the auxiliary air hole 6 and the ventilation hole 2 can be connected. Through the elastic effect of the annular elastic part 3, the flat contact plate 4 is pushed away from the lower end face of the insole body 1 after being pressed. As the foot is pressed, the annular elastic part 3 is repeatedly pressed and rebounded, allowing gas to enter the cavity 5 from the auxiliary air hole 6 and connect with the ventilation hole 2.

[0043] The ring-shaped elastic part 3 can not only play the role of elastic compression and elastic rebound, but also play the role of cushioning the foot through elasticity. Compared with setting a hard protrusion, it can reduce the occurrence of foot bruising.

[0044] The setting of the limiting post 7 can limit the distance of the flat bottom contact plate 4 from approaching the lower end surface of the insole body 1 when the foot presses down on the insole body 1, compressing the cavity 5 and bringing the flat bottom contact plate 4 close to the lower end surface of the insole body 1. When the flat bottom contact plate 4 abuts against each limiting post 7, a space can also be formed between the limiting post 7 and the flat bottom contact plate 4 to prevent the flat bottom contact plate 4 from blocking the ventilation hole 2. It can also further prevent the flat bottom contact plate 4 from getting too close to the lower end surface of the insole body 1, reducing the phenomenon that the annular elastic part 3 is sunken and cannot bounce back.

[0045] The deodorizing layer 8 is located on the outside of the annular elastic part 3. When gas flows between the auxiliary air hole 6 and the ventilation hole 2, the deodorizing layer 8 can reduce the odor inside the shoe, insole, or sole, thereby achieving the deodorizing effect. The activated carbon cotton layer also has soft properties. The softness increases with the increase of the thickness, which can improve the cushioning effect of the forefoot while reducing odor.

[0046] The cork layer 11 has a high degree of fit and can be indented by the pressure of the foot during repeated wear, allowing the foot to fit more closely to the insole body 1. It can automatically adapt to the individual's foot shape and provide good support.

[0047] This utility model aims to protect the product's structure. The model numbers of the individual components are not protected by this utility model and are common technology. Any component on the market that can achieve the functions described above can be used as an adaptive insole. Therefore, the model numbers and other parameters of the components are not described in detail in this utility model. The contribution of this utility model lies in the scientific combination of the various components.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions provided are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents. Any aspects of this utility model not detailed herein are well-known to those skilled in the art.

Claims

1. An insole that adapts to the shape of the foot sole, comprising an insole body and a plurality of ventilation holes extending through the insole body, characterized in that: It also includes an annular elastic part fixedly disposed on the lower end surface of the insole body and corresponding to the positions of each ventilation hole, a flat bottom contact plate fixedly disposed on the lower end surface of the annular elastic part, a cavity formed between the annular elastic part and the flat bottom contact plate and connected to each ventilation hole, and a plurality of auxiliary air holes opened on the annular elastic part and connected to the cavity. The annular elastic part is an arc-shaped part or a conical part.

2. The insole with adaptive foot shape according to claim 1, characterized in that: The lower end face of the insole body is provided with at least three limiting posts inside the cavity, and each limiting post is arranged in a ring at equal intervals outside the ventilation holes.

3. The insole with adaptive foot shape according to claim 2, characterized in that: The limiting post is an arc-shaped post.

4. The insole with adaptive foot shape according to claim 2, characterized in that: The limiting post is a rubber post or a nylon post.

5. The insole with adaptive foot shape according to claim 1, characterized in that: The annular elastic part is a rubber part or a silicone part.

6. The insole with adaptive foot shape according to claim 1, characterized in that: The auxiliary air hole is a conical hole.

7. The insole with adaptive foot shape according to claim 1, characterized in that: The lower end of the insole body is provided with a deodorizing layer on the outside of each annular elastic part.

8. The insole with adaptive foot shape according to claim 7, characterized in that: The deodorizing layer is an activated carbon cotton layer, and the deodorizing layer has a clearance groove for avoiding the annular elastic part.

9. The insole with adaptive foot shape according to claim 1, characterized in that: The insole body is provided with an arch support plate.

10. The insole with adaptive foot shape according to claim 1, characterized in that: The insole body includes a flexible layer and a cork layer arranged from top to bottom.

Images