An arch-correcting insole

By designing a custom-thickness plate, breathable holes, and antibacterial plate, the problem of existing insoles being difficult to match individual foot shapes has been solved, achieving personalized arch correction and improved comfort.

CN224420238UActive Publication Date: 2026-06-30JINJIANG XINDASHENG SHOE MATERIAL MFG CO LTD
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Patent Information

Application Number
CN202521991960.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-16
Publication Date
2026-06-30
Estimated Expiration
2035-09-16

AI Technical Summary

Technical Problem

Existing orthotic insoles are difficult to match individual foot shapes, leading to problems such as localized pressure, pain, and insufficient support.

Method used

It adopts a combination design of customized thickness plate, front heel cross spring plate and heel soft pad, combined with Velcro for quick removal, ventilation holes and antibacterial plate design, to personalize and clean for different foot shapes and needs.

Benefits of technology

It achieves personalized arch correction, improves comfort and hygiene, reduces replacement costs, enhances support and breathability, and inhibits bacterial growth.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of insole technology and discloses an arch-correcting insole, including a top layer, a customized thickness plate bonded to the bottom outer wall of the top layer, a bottom plate bonded to the bottom outer wall of the customized thickness plate, and a heel transverse arch spring block bonded to the top outer wall of the top layer. The heel transverse arch spring block is an important weight-bearing structure of the forefoot. If the transverse arch collapses (i.e., "forefoot flattening") due to congenital malformation, prolonged wearing of narrow shoes, obesity, or excessive weight-bearing, the intermetrocar distance will widen, and the forefoot will become wider and flatter. The heel transverse arch spring block is customized and bonded to fit the patient's different foot shapes. In this utility model, Velcro allows for quick disassembly and replacement of the heel transverse arch spring block, heel pad, and customized thickness plate, enabling personalized customization according to different patients' foot shapes and needs. This not only meets diverse correction needs but also reduces the cost of overall replacement.
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Description

Technical Field

[0001] This utility model relates to the field of insole technology, and in particular to an arch-correcting insole. Background Technology

[0002] Orthopedic insoles help improve the arch structure of the foot by providing extra support. For arch problems such as flat feet, they can increase the height of the arch, making the stress distribution in the foot more even, thereby reducing excessive pressure on the sole of the foot caused by a low arch, relieving pain and discomfort, and also correcting poor gait and posture, reducing the burden on joints and muscles, and preventing potential health problems.

[0003] When using for the first time, it is recommended to start with short periods of wear and gradually increase the wearing time to allow your feet to gradually adapt to the support of the insole. Ensure that the insole size matches your foot shape; insoles that are too large or too small may affect the corrective effect and even cause discomfort. Clean the insoles regularly to prevent the accumulation of dust, dirt, etc., which can affect the performance and comfort of the insoles. Use a mild detergent and cold water to clean them; avoid using harsh chemicals or excessively hot water.

[0004] Orthopedic insoles have the following drawbacks: the arch height and support angle of ordinary ready-made insoles are mostly standardized designs, which are difficult to match with each person's foot shape, such as the degree of arch collapse and the angle of foot deviation. This may cause local pressure, such as pain in the arch, heel friction, or insufficient support, which may aggravate fatigue. Therefore, an orthopedic insole is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an arch-correcting insole, which aims to improve the problem that existing technologies are difficult to match with each person's foot shape, such as the degree of arch collapse and the angle of foot deviation.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an arch corrector insole, comprising a surface plate, a customized thickness plate bonded to the bottom outer wall of the surface plate, a bottom plate bonded to the bottom outer wall of the customized thickness plate, and a forefoot transverse arch spring block bonded to the top outer wall of the surface plate. The forefoot transverse arch spring block is an important load-bearing structure of the forefoot. If the transverse arch collapses due to congenital malformation, long-term wearing of narrow shoes, obesity, or excessive weight-bearing (i.e., "forefoot flat"), the distance between the metatarsals will widen, and the forefoot will become wider and flatter. The forefoot transverse arch spring block is customized and bonded to fit the patient's different foot soles. A heel pad is bonded to the top outer wall of the surface plate. The material of the heel pad is ethylene-vinyl acetate copolymer, which is easy to process into different thicknesses and shapes to meet the basic cushioning needs of different patients. The top outer wall of the surface plate has ventilation holes.

[0007] As a further description of the above technical solution: there are several ventilation holes, which are respectively opened on the top outer wall of the forefoot arch spring block and the upper plate. The effect of ventilation holes depends not only on the number, but also on the size of the holes and their distribution (such as areas prone to sweating, such as the forefoot, arch, and heel). Targeted distribution of ventilation holes is more effective. Ventilation holes can form "air channels" that allow air inside and outside the shoe to exchange through the holes, accelerate heat dissipation, and keep the feet relatively cool, which is especially suitable for people who wear shoes for a long time and whose feet are prone to getting hot.

[0008] As a further description of the above technical solution: there are several customized thickness plates, each with a different thickness. The top and bottom sides of the customized thickness plates are fixedly connected with Velcro. The front heel cross spring block, the rear heel pad, and the customized thickness plates can be quickly disassembled and customized in a personalized manner through the Velcro, reducing the cost of overall replacement and improving the disassembly and cleaning time.

[0009] As a further description of the above technical solution: the thickness of the base plate is three millimeters, and the material of the base plate is thermoplastic polyurethane, which has high hardness, high strength, strong resistance to deformation, and wear resistance. It can be made into a thin sheet or skeleton structure to be embedded in the insole, as well as high-strength support. It is often used as the "support core" of the arch correction insole (such as TPU sheet embedded in the arch), providing rigid support and excellent stability. It is suitable for moderate to severe arch problems (such as obvious flat feet, high arches) and can effectively control excessive pronation / exvolution of the foot.

[0010] As a further description of the above technical solution: there are several front heel cross spring pieces and several heel pads, and the several front heel cross spring pieces and heel pads are customized with different shapes and thicknesses.

[0011] As a further description of the above technical solution: an antibacterial plate is adhered to the bottom outer wall of the base plate. By setting the material of the antibacterial plate to be activated carbon, although the main function is "adsorption", the porous structure of bamboo charcoal and activated carbon can adsorb sweat and odor molecules. At the same time, its own weakly alkaline environment can inhibit the reproduction of some acidic bacteria, thus indirectly achieving antibacterial and deodorizing effects.

[0012] This utility model has the following beneficial effects:

[0013] 1. In this utility model, the heel cross-arm spring block, heel pad and customized thickness plate are quickly disassembled and replaced by Velcro. It can be customized and adapted according to the foot shape and needs of different patients. It can not only meet the diverse correction needs, but also reduce the cost of overall replacement. At the same time, it is easy to clean and handle after disassembly, and improve the convenience of use.

[0014] 2. In this utility model, by integrating the functions of forefoot transverse arch support, heel cushioning, breathability and antibacterial properties, the forefoot transverse arch spring block can effectively maintain the forefoot transverse arch structure, the heel pad provides comfortable cushioning, the ventilation holes can promote air circulation to keep the feet dry, and the antibacterial plate can absorb odors and inhibit bacterial growth. The functions work together to significantly improve the comfort and hygiene of use while ensuring the corrective effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall front view of an arch-correcting insole proposed in this utility model;

[0016] Figure 2 This is a bottom view schematic diagram of an arch-correcting insole proposed in this utility model;

[0017] Figure 3 This is a side view of an arch-correcting insole proposed in this utility model.

[0018] Legend:

[0019] 1. Top layer board; 2. Custom thickness board; 3. Bottom board; 4. Front heel cross spring block; 5. Heel pad; 6. Ventilation holes; 7. Antibacterial board. Detailed Implementation

[0020] 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, 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.

[0021] Reference Figures 1-3 This utility model provides an embodiment of an orthotic insole, comprising a top plate 1, a customized thickness plate 2 bonded to the bottom outer wall of the top plate 1, a bottom plate 3 bonded to the bottom outer wall of the customized thickness plate 2, and a forefoot transverse arch spring block 4 bonded to the top outer wall of the top plate 1. The forefoot transverse arch spring block 4 is an important load-bearing structure of the forefoot. If the transverse arch collapses due to congenital malformation, long-term wearing of narrow shoes, obesity, or excessive weight-bearing, i.e., "forefoot flattening," the distance between the metatarsals will widen, and the forefoot will become wider and flatter. The forefoot transverse arch spring block 4 is customized and bonded to fit the patient's different foot soles. A heel pad 5 is bonded to the top outer wall of the top plate 1. The material of the heel pad 5 is ethylene-vinyl acetate copolymer, which is easy to process into different thicknesses and shapes to meet the basic cushioning needs of different patients. The top outer wall of the top plate 1 has ventilation holes 6.

[0022] Reference Figures 1-3There are several custom thickness plates 2, each with a different thickness. The top and bottom sides of the custom thickness plates 2 are fixedly connected with Velcro. The front heel arch spring block 4, the heel pad 5, and the custom thickness plates 2 can be quickly disassembled and customized through Velcro, reducing the cost of overall replacement and improving the disassembly and cleaning time. The sole plate 3 is three millimeters thick and is made of thermoplastic polyurethane, which has high hardness, high strength, strong deformation resistance, and wear resistance. It can be made into thin sheets or skeleton structures embedded in the insole, as well as high-strength support. It is often used as the "support core" of arch correction insoles, such as embedding TPU sheets in the arch area to provide rigid support and excellent stability. It is suitable for moderate to severe arch problems such as obvious flat feet and high arches, and can effectively control excessive pronation / exvolution of the foot.

[0023] Reference Figures 1-3 There are several ventilation holes 6, which are respectively opened on the top outer wall of the forefoot arch spring block 4 and the upper plate 1. The effect of ventilation holes 6 depends not only on the number, but also on the size of the holes and their distribution, such as in areas prone to sweating, such as the forefoot, arch, and heel. Targeted distribution of ventilation holes 6 is more effective. The ventilation holes 6 can form "air channels" that allow air to exchange between the inside and outside of the shoe, accelerating heat dissipation and keeping the feet relatively cool. This is especially suitable for people who wear shoes for long periods of time and whose feet are prone to sweating. For hot individuals, there are several front heel cross spring plates 4 and several heel pads 5. Each of these front heel cross spring plates 4 and heel pads 5 is customized with different shapes and thicknesses. An antibacterial plate 7 is glued to the bottom outer wall of the base plate 3. The antibacterial plate 7 is made of activated carbon. Although its main function is "adsorption", the porous structure of bamboo charcoal and activated carbon can adsorb sweat and odor molecules. At the same time, its own weakly alkaline environment can inhibit the reproduction of some acidic bacteria, thus indirectly achieving antibacterial and deodorizing effects.

[0024] Working principle: The heel transverse arch spring plate 4 is an important weight-bearing structure of the forefoot. If the transverse arch collapses due to congenital malformation, long-term wearing of narrow shoes, obesity, or excessive weight-bearing, resulting in "forefoot flattening," the distance between the metatarsals will widen, and the forefoot will become wider and flatter. The heel transverse arch spring plate 4 is customized and bonded to fit the patient's different foot shapes. The heel transverse arch spring plate 4, heel pad 5, and customized thickness plate 2 can be quickly disassembled using Velcro for personalized customization, reducing the cost of overall replacement and improving disassembly and cleaning time. Simultaneously, through the setting... The effectiveness of the ventilation holes 6 depends not only on the number of holes, but also on the size of the holes and their distribution, such as in areas prone to sweating, like the forefoot, arch, and heel. Targeted distribution of ventilation holes 6 results in better performance. The ventilation holes 6 can form "air channels," allowing air inside and outside the shoe to exchange through the holes, accelerating heat dissipation and keeping the feet relatively cool. At the same time, the antibacterial plate 7 is made of activated carbon. Although its main function is "adsorption," the porous structure of bamboo charcoal and activated carbon can adsorb sweat and odor molecules. In addition, its own slightly alkaline environment can inhibit the growth of some acidic bacteria.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An arch-correcting insole, comprising a surface plate (1), characterized in that: A custom thickness plate (2) is bonded to the bottom outer wall of the surface layer (1), a base plate (3) is bonded to the bottom outer wall of the custom thickness plate (2), a front heel cross spring block (4) is bonded to the top outer wall of the surface layer (1), a rear heel pad (5) is bonded to the top outer wall of the surface layer (1), and ventilation holes (6) are provided on the top outer wall of the surface layer (1).

2. The arch-correcting insole according to claim 1, characterized in that: There are several vent holes (6), and the several vent holes (6) are respectively opened on the top outer wall of the front heel cross spring block (4) and the surface plate (1).

3. The arch-correcting insole according to claim 1, characterized in that: There are several custom thickness plates (2), each of which has a different thickness, and the top and bottom sides of the several custom thickness plates (2) are fixedly connected with Velcro.

4. The arch-correcting insole according to claim 1, characterized in that: The thickness of the base plate (3) is three millimeters.

5. The arch-correcting insole according to claim 1, characterized in that: There are several of the front heel crossbow spring block (4) and the rear heel pad (5), and each of the several front heel crossbow spring block (4) and the rear heel pad (5) is customized with different shapes and thicknesses.

6. The arch-correcting insole according to claim 1, characterized in that: An antibacterial plate (7) is adhered to the bottom outer wall of the base plate (3).