China-hemp antibacterial insole

By using foamed TPU material and hemp fiber fabric combined with U-shaped grooves and elastic elements in the insole, the problem of insufficient shape and size adaptability of the insole is solved, improving the adaptability and comfort of the insole, and enhancing breathability and antibacterial properties.

CN223994451UActive Publication Date: 2026-03-17YONGJIA HUIHAO SHOE MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-16
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Existing insoles are inadequate in terms of fit and shape, especially in the forefoot area where they are difficult to adapt to different sizes and shapes of shoes, and the adjustment precision is low.

Method used

The insole features a foamed TPU material bottom and a hemp fiber antibacterial fabric layer, combined with a U-shaped groove and elastic element design. The U-shaped groove provides deformation space, and the elastic element enhances the deformation effect, ensuring a good fit between the insole and the shoe cavity. Massage bumps and blind holes further enhance comfort.

Benefits of technology

It achieves good adaptability of the insole to different shoe shapes and sizes, improves wearing comfort and fit, avoids insole falling off and wrinkling, and enhances breathability and antibacterial effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a china-hemp antibacterial insole, which comprises a bottom made of foaming TPU (thermoplastic polyurethane) material and an antibacterial layer adhered and covered on the upper surface of the bottom, the antibacterial layer is made of china-hemp fiber fabric, the lower end of the bottom is provided with a U-shaped groove close to the peripheral edge and corresponding to the front sole area, the longitudinal upper part of the U-shaped groove is closed, and the lower end of the U-shaped groove is provided with a sealing strip. The longitudinal lower part of the U-shaped groove is provided with an opening at the lower end of the bottom; and the longitudinal depth of the U-shaped groove is at least more than half of the longitudinal height of the bottom close to the peripheral edge. The China-hemp antibacterial insole can realize antibacterial and deodorant functions, and the front sole part of the China-hemp antibacterial insole has better adaptability to shoes with different shapes and sizes.
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Description

Technical Field

[0001] This utility model relates to the technical field of shoe insoles, specifically to a hemp antibacterial shoe insole. Background Technology

[0002] Insoles are an essential part of shoes, coming into contact with the soles of the feet. The material and properties of insoles directly affect the feel of wearing them. As people's living standards improve, insoles have become more diverse, including sports insoles, thermal insoles, height-increasing insoles, and health-promoting insoles. Hemp is a commonly used material in insoles, offering advantages such as antibacterial and odor-resistant properties, moisture absorption and breathability, and environmental friendliness and health benefits.

[0003] When purchasing and using traditional insoles, it is necessary to consider their compatibility with the size of the shoe cavity. Since different manufacturers produce insoles of different sizes, even if you choose insoles according to your shoe size, you may still find that they do not fit your shoes when you actually install and use them. This phenomenon is particularly inconvenient when purchasing insoles online, especially for the forefoot area of ​​the insoles, where the differences in size and specifications are relatively large, making it easier for them to be difficult to fit.

[0004] In response to this situation, some consumers will use scissors to trim the edges of the insole to better fit the shoe cavity. However, this requires certain skills and it is easy to cut too much. In addition, this method will not work for insoles that are already too small.

[0005] Chinese utility model discloses an adjustable spliced ​​insole (CN206964141U), which allows for easy adjustment of the size and length of the insole body by sequentially splicing a first size ring, a second size ring, and a third size ring on the outside of a basic insole. This makes the insole body suitable for use with shoes of different sizes, eliminates the need for manual cutting, and allows for repeated use and size adjustment, thus improving the convenience of insole use.

[0006] This patent addresses the aforementioned problems to some extent, but it still has the following drawbacks:

[0007] (1) In order to facilitate disassembly and assembly, the size ring is only put on the outside of the basic insole, and it is easy to be squeezed off the basic insole when walking and wearing it;

[0008] (2) It can only be adapted to the shoe cavity in terms of size, and its adaptability in terms of shape is poor;

[0009] (3) Its size variation range is related to the width of the size ring. There may be situations where it is too small after the size ring is removed and too large after the size ring is installed. The adjustable precision is low. Summary of the Invention

[0010] This invention provides a hemp antibacterial insole, which, in addition to achieving basic antibacterial and deodorizing functions, has better adaptability to different shoe shapes and sizes in the forefoot area.

[0011] This utility model discloses a hemp antibacterial insole, comprising a bottom made of foamed TPU material and an antibacterial layer adhered to and covering the upper surface of the bottom. The foamed TPU material itself has many micropores, allowing heat and moisture from the feet to escape, and also provides a certain degree of elasticity when worn. The antibacterial layer is made of hemp fiber fabric, which has antibacterial and deodorizing effects. The hemp fiber fabric itself also has many small pores, providing good breathability. The lower end of the bottom has a U-shaped groove near the outer edge of the forefoot area, and the upper part of the vertical direction of the U-shaped groove... For a closed design, the lower longitudinal part of the U-shaped groove has an opening at the bottom. The longitudinal depth of the U-shaped groove is at least half of the longitudinal height of the bottom near the outer periphery. When placed in the shoe cavity, it is squeezed by the side wall of the shoe cavity, which allows the outer periphery of the bottom of the insole to deform inward appropriately. Furthermore, since the upper part of the U-shaped groove is relatively thin, it can also improve the upward curvature effect of the outer periphery of the bottom of the insole. When placed in a narrow shoe cavity, it can be appropriately curved upward, improving the wrapping of the foot and enhancing the comfort when wearing it.

[0012] Furthermore, the U-shaped groove includes a wide portion and a narrow portion. In the longitudinal direction, the wide portion is connected to the upper end of the narrow portion, and the lower end of the narrow portion is connected to the opening. A U-shaped elastic element is embedded in the wide portion of the U-shaped groove. The width of the elastic element is greater than the width of the narrow portion. Utilizing the elastic deformation of the bottom of the insole, the elastic element can be inserted upward into the wide portion along the opening. Due to the width of the narrow portion, the elastic element is not easy to come out under normal use. The setting of the elastic element can improve the elastic deformation effect when the outer periphery of the bottom is squeezed inward, avoid wrinkles in the insole, and the elastic element can also provide a certain rebound force when wearing and stepping on it daily.

[0013] Furthermore, the elastic element is a U-shaped airbag, which has good elasticity and is lightweight.

[0014] Furthermore, the upper part of the insole has multiple massage bumps evenly distributed in the corresponding forefoot area.

[0015] Furthermore, the upper end of the bottom is provided with multiple circular protrusions. When the antibacterial layer is adhered to and covered on the protrusions, it will deform accordingly and form the massage protrusions, which facilitates the processing and shaping of the massage protrusions.

[0016] Furthermore, multiple massage bumps are evenly distributed in the corresponding area of ​​the forefoot to improve comfort when wearing the shoes.

[0017] Furthermore, the lower end of the bottom has multiple blind holes in the corresponding forefoot area to increase the contact area with outside air and improve the breathability of the bottom.

[0018] The beneficial effects of this invention are: the antibacterial layer of hemp fiber fabric can provide antibacterial and deodorizing effects for the insole. In addition, the bottom of the foamed TPU material itself has a certain degree of elasticity, and due to the presence of the U-shaped groove, it can improve the deformation effect when the outer edge of the forefoot area of ​​the insole is squeezed inward, thus providing better fit for shoe shapes and sizes. When inserted into the shoe cavity, the outer edge of the forefoot area will also show a certain degree of upward curvature, which has a certain wrapping effect on the bottom of the forefoot and improves the fit when wearing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the upper structure of an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the lower structure of an embodiment of the present utility model;

[0021] Figure 3 This is a cross-sectional view of an embodiment of the present utility model;

[0022] Figure 4 This is a cross-sectional view of another embodiment of the present invention. Detailed Implementation

[0023] Examples of the implementation of this utility model of hemp antibacterial insole Figure 1-3As shown: The structure includes a bottom 1 made of foamed TPU material and an antibacterial layer 2 adhered to and covering the upper surface of the bottom 1. The foamed TPU material itself has many micropores, allowing heat and moisture from the feet to escape, and also provides some elasticity when worn. The antibacterial layer 2 is made of hemp fiber fabric, which has antibacterial and deodorizing effects. The hemp fiber fabric itself also has many small pores, providing good breathability. A U-shaped groove 11 is formed at the lower end of the bottom 1 near the outer edge of the forefoot area. The upper longitudinal part of the U-shaped groove 11 is closed, while the lower longitudinal part of the U-shaped groove 11 has an opening at the lower end of the bottom 1. The longitudinal depth of the U-shaped groove 11 is at least [a certain depth] near the bottom 1. The longitudinal height of the outer periphery (i.e., the distance between the lowest and highest parts of the bottom 1 where the U-shaped groove 11 is located) is more than half. The longitudinal depth of the U-shaped groove 11 is preferably 2 / 3 of the longitudinal height of the bottom 1. When it is placed in the shoe cavity, it is squeezed by the side wall of the shoe cavity, which allows the outer periphery of the bottom 1 of the insole to deform inward appropriately. During the inward formation process, the U-shaped groove 11 will become narrower accordingly, which is equivalent to providing space for deformation. In addition, since the upper part of the U-shaped groove 11 is relatively thin, it can also improve the upward effect of the outer periphery of the bottom 1 of the insole. When placed in a narrow shoe cavity, it can be appropriately upturned, improving the wrapping of the foot and improving the comfort when wearing it.

[0024] The upper part of the insole has multiple massage bumps 3 evenly distributed in the corresponding forefoot area to improve the health benefits of the insole.

[0025] The upper end of the bottom 1 is provided with a plurality of circular protrusions 12. The antibacterial layer 2 is flexible. When the antibacterial layer 2 is adhered to and covered on the protrusions 12, it will deform accordingly and form the massage protrusions 3, which facilitates the processing and shaping of the massage protrusions 3.

[0026] Multiple massage bumps are evenly distributed in the corresponding area of ​​the forefoot to improve comfort when wearing the shoes.

[0027] The lower end of the bottom 1 has multiple blind holes 13 in the corresponding forefoot area to increase the contact area with the outside air and further improve the breathability of the bottom 1.

[0028] In another embodiment, as a further improvement on the above embodiments, such as... Figure 4As shown, the U-shaped groove 11 includes a wide portion 111 and a narrow portion 112. In the longitudinal direction, the wide portion 111 is connected to the upper end of the narrow portion 112, and the lower end of the narrow portion 112 is connected to the opening. A U-shaped elastic element 4 is embedded in the wide portion 111 of the U-shaped groove 11. The width of the elastic element 4 is greater than the width of the narrow portion 112. Utilizing the elastic deformation of the bottom 1 of the insole, the elastic element 4 can be inserted upwards into the wide portion 111 along the opening. Due to the width of the narrow portion 112, the elastic element 4 is not easily dislodged under normal use. The elastic element 4 improves the elastic deformation effect when the outer edge of the bottom 1 is squeezed inwards, preventing wrinkles in the insole and helping to maintain the stability of the insole structure. The elastic element 4 also provides a certain amount of rebound force during daily wear and stepping. The elastic element 4 is a U-shaped air bladder with good elasticity and light weight.

[0029] The above embodiments are merely one preferred embodiment of the present utility model. Ordinary changes and substitutions made by those skilled in the art within the scope of the present utility model's technical solution are all included within the protection scope of the present utility model.

Claims

1. A hemp antibacterial insole, comprising a bottom of foamed TPU material, and an antibacterial layer pasted on the upper surface of the bottom, wherein the antibacterial layer is composed of hemp fiber fabric, and characterized in that: The lower end of the bottom is provided with a U-shaped slot near the outer peripheral edge corresponding to the forefoot ball region, the longitudinal upper part of the U-shaped slot is closed, the longitudinal lower part of the U-shaped slot is provided with an opening at the lower end of the bottom, and the longitudinal depth of the U-shaped slot is at least more than half of the longitudinal height of the bottom near the outer peripheral edge.

2. The hemp antibacterial insole according to claim 1, characterized in that: The U-shaped slot comprises a wide part and a narrow part, the wide part is connected to the upper end of the narrow part in the longitudinal direction, the lower end of the narrow part is connected to the opening, and a U-shaped elastic member is embedded in the wide part of the U-shaped slot, and the width of the elastic member is greater than the width of the narrow part.

3. The hemp antibacterial insole according to claim 2, characterized in that: The elastic member is a U-shaped air bag.

4. The hemp antibacterial insole according to claim 1, characterized in that: The upper end of the insole is provided with a plurality of massage protrusions uniformly distributed corresponding to the forefoot ball region.

5. The hemp antibacterial insole according to claim 4, characterized in that: The upper end of the bottom is provided with a plurality of circular protrusions, and the antibacterial layer covers the protrusions to form the massage protrusions.

6. The hemp antibacterial insole according to claim 4, characterized in that: The plurality of massage protrusions are uniformly distributed corresponding to the forefoot ball region.

7. The hemp antibacterial insole according to claim 1, characterized in that: The lower end of the bottom is provided with a plurality of blind holes corresponding to the forefoot ball region.

Citation Information

Patent Citations

  • Concatenation shoe -pad with adjustable size

    CN206964141U