Partitioned supporting 3D printing insole
By combining zoned design with support columns, the problem of existing 3D printed insoles being unable to provide targeted support is solved, achieving personalized comfort and stability, relieving foot fatigue and preventing slippage, and keeping the inside of the shoe dry.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CAREMAX TECH (CHENGDU) INC
- Filing Date
- 2025-07-10
- Publication Date
- 2026-05-19
AI Technical Summary
Existing 3D printed insoles cannot provide targeted support and cushioning during prolonged wear, resulting in concentrated pressure in different areas of the foot, which can easily lead to problems such as arch fatigue and heel pain.
The 3D-printed insole features zoned support, including the insole body, anti-slip pad, support components, and support pillars for different areas. Combined with 3D printing one-piece molding technology, it achieves personalized support and protection.
By precisely conforming to the physiological curves of the foot, it provides personalized support, significantly enhances comfort and stability, relieves foot fatigue, prevents slipping, and keeps the inside of the shoe dry.
Smart Images

Figure CN224250833U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of insole structure technology, specifically relating to a partitioned support 3D printed insole. Background Technology
[0002] 3D printed insoles utilize 3D scanning technology to obtain three-dimensional data and pressure distribution information of the user's foot. A personalized model is then built using computer-aided design, and finally, 3D printing equipment is used to stack materials such as thermoplastic plastics and elastomers in a layered manner to create the insole. It can be designed with specific structures such as arch support, heel cushioning, and forefoot decompression according to the functional needs of different areas of the sole. Compared with traditional insoles, it has the characteristics of highly conforming to the foot shape, precise functional zoning, and customization on demand. It is suitable for daily health care, sports protection, and auxiliary treatment of foot diseases.
[0003] Chinese Patent Publication No. CN206197214U discloses a 3D-printed insole, comprising a support layer with a hollow structure woven from filling units; the hollow structure is distributed on the surface and inside of the support layer; the hollow structure is the hollow portion of the filling unit itself, and / or formed by weaving adjacent filling units. The support layer of this utility model is woven from filling units, and the hollow structure of its insole is formed by the hollow portion of the filling unit itself or between adjacent filling units, improving the insole's elasticity, comfort, and durability.
[0004] While existing patents can improve the elasticity, comfort, and durability of insoles, the force exerted on the feet varies during walking. Therefore, when worn for extended periods, existing patents cannot provide targeted support and cushioning for different areas of the foot, leading to concentrated local pressure and potentially causing problems such as arch fatigue and heel pain. Utility Model Content
[0005] The purpose of this invention is to provide a partitioned support 3D printed insole to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a partitioned support 3D printed insole, comprising an insole body, wherein an anti-slip pad is provided on the lower surface of the insole body, and a buffer groove is provided inside the anti-slip pad, wherein a support component for supporting the insole body is provided in the buffer groove; the support component includes a support column one, a support column two, and a support column three respectively located inside the buffer groove; the upper surface of the insole body is provided with a forefoot support area, an arch support area, and a heel buffer area from front to back, wherein a forefoot support area is provided with a foot pad, an arch support area is provided with an arch pad and a massage pad, and a heel buffer area is provided with a heel pad.
[0007] In a preferred embodiment, the bottom of the anti-slip mat has an anti-slip groove, and the inner wall of the anti-slip groove has a breathable groove, which penetrates the side wall of the anti-slip groove and communicates with the outside.
[0008] In a preferred embodiment, the first support column is located directly below the arch support area, the second support column is located directly below the forefoot support area, and the third support column is located directly below the heel buffer zone.
[0009] In a preferred embodiment, the second support column is rhomboid and arranged in a parallel array below the insole body, and the third support column is X-shaped and arranged in a parallel array below the insole body; the first support column, the second support column, and the third support column have different heights.
[0010] In a preferred embodiment, the upper surfaces of the foot pad and heel pad are provided with hollowed-out areas, and the upper surface of the massage pad is provided with massage protrusions.
[0011] In a preferred embodiment, the insole body, anti-slip pad, support component, sole pad, arch pad, heel pad, and massage pad are all manufactured using a 3D printing integrated molding process, and the insole body and the anti-slip pad are layered with materials of different hardness through 3D printing.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This invention features a zonal design for the insole, incorporating a forefoot pad, arch pad, massage pad, and heel pad. This design precisely conforms to the physiological curves of different parts of the foot, providing personalized support and protection for the forefoot, arch, and heel, effectively relieving foot fatigue caused by prolonged walking or standing. The support components, including support pillars one, two, and three of different shapes, distributions, and heights, meet the varying support needs of different areas of the foot, significantly enhancing the insole's comfort and stability. The anti-slip pad's anti-slip grooves and breathable grooves balance the insole's stability within the shoe with airflow, preventing stuffiness and slippage.
[0014] This invention employs support columns one, two, and three of different heights to fully adapt to the differences in foot shape and usage scenarios of different users, achieving personalized and comfortable support and effectively improving the practicality and versatility of the insole in various scenarios such as sports and daily walking. Attached Figure Description
[0015] Figure 1 This is a three-dimensional front view schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the overall three-dimensional bottom view of the present invention;
[0017] Figure 3 This is a schematic diagram of the overall exploded three-dimensional structure of this utility model;
[0018] Figure 4 This is a three-dimensional structural diagram of the anti-slip mat component of this utility model.
[0019] In the picture: 1. Insole body; 2. Foot pad; 3. Arch pad; 4. Heel pad; 5. Anti-slip pad; 6. Cushioning groove; 7. Support component; 8. Anti-slip groove; 9. Breathing groove; 10. Massage pad; 701. Support column one; 702. Support column two; 703. Support column three. Detailed Implementation
[0020] The present invention will be further described below with reference to the embodiments.
[0021] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the concept of the present invention are all within the scope of protection claimed by the present invention.
[0022] Please see Figure 1-4 This utility model provides a partitioned support 3D printed insole, including an insole body 1. The lower surface of the insole body 1 is provided with an anti-slip pad 5. The anti-slip pad 5 has a buffer groove 6 inside. The buffer groove 6 is provided with a support component 7 for supporting the insole body 1. The support component 7 includes a support column 1 701, a support column 2 702 and a support column 3 703 respectively located inside the buffer groove 6. The upper surface of the insole body 1 is provided with a forefoot support area, an arch support area and a heel buffer area from front to back. The forefoot support area is provided with a foot pad 2, the arch support area is provided with an arch pad 3 and a massage pad 10, and the heel buffer area is provided with a heel pad 4.
[0023] The insole body 1 serves as the basic carrier. Its lower surface anti-slip pad 5 makes close contact with the sole through the bottom anti-slip groove 8, increasing friction and preventing the insole from sliding inside the shoe. The ventilation groove 9 on the inner wall of the anti-slip groove 8 connects to the outside, promoting air circulation and keeping the inside of the shoe dry. The cushioning groove 6 inside the anti-slip pad 5 houses the support components 7. Among them, support column one 701 is located directly below the arch support area, support column two 702 is located directly below the forefoot support area, and support column three 703 is located directly below the heel buffer zone. The three components provide precise support for different areas of the foot by virtue of their different shapes, distribution patterns, and heights. On the upper surface of the insole body 1, the forefoot pad 2 in the forefoot support area and the heel pad 4 in the heel buffer zone utilize hollowed-out areas to fit the wearer's foot more closely, improving the safety and comfort of wearing the insole. The arch pad 3 in the arch support area assists in supporting the arch of the foot, and the raised massage protrusions on the surface of the massage pad 10 massage and relax the foot during walking.
[0024] This invention features a zonal design for the insole body 1, which incorporates a foot pad 2, an arch pad 3, a massage pad 10, and a heel pad 4. This design precisely conforms to the physiological curves of different parts of the foot, providing personalized support and protection for the forefoot, arch, and heel, effectively relieving foot fatigue caused by prolonged walking or standing. The support component 7 includes support pillars 701, 702, and 703 of different shapes, distributions, and heights, meeting the diverse support needs of different areas of the foot and significantly enhancing the insole's comfort and stability. The anti-slip grooves 8 and ventilation grooves 9 of the anti-slip pad 5 balance the insole's stability within the shoe with airflow, preventing stuffiness and slippage.
[0025] Specifically, such as Figure 1 and Figure 2 As shown, the bottom of the anti-slip mat 5 is provided with an anti-slip groove 8, and the inner wall of the anti-slip groove 8 is provided with a breathable groove 9, which penetrates the side wall of the anti-slip groove 8 and communicates with the outside.
[0026] The anti-slip grooves 8 on the bottom of the anti-slip pad 5 increase the contact area and surface roughness with the sole, forming a physical interlocking structure that effectively prevents the insole from shifting inside the shoe, especially improving stability during exercise or in slippery environments. The ventilation grooves 9 on the inner wall of the anti-slip grooves 8 penetrate the sidewalls and connect to the outside, forming an air circulation channel that allows moisture to escape from the shoe quickly, preventing stuffiness caused by sweat buildup, maintaining a dry foot environment, and reducing the risk of bacterial growth.
[0027] Specifically, such as Figure 2 and Figure 3 As shown, support column 1 701 is located directly below the arch support area, support column 2 702 is located directly below the forefoot support area, and support column 3 703 is located directly below the heel buffer zone.
[0028] Support column 2 702 is rhomboid and arranged in a parallel array below the insole body 1, and support column 3 703 is X-shaped and arranged in a parallel array below the insole body 1; support column 1 701, support column 2 702 and support column 3 703 have different heights.
[0029] The precise placement of support pillars 701, 702, and 703 allows them to provide customized support for the arch, forefoot, and heel, effectively relieving pressure in different areas of the foot. The diamond-shaped array of support pillar 702 and the X-shaped array of support pillar 703, through their unique mechanical structure, greatly enhance the overall stability of the insole, better distributing foot pressure and reducing localized compression. Furthermore, the varying heights of support pillars 701, 702, and 703 fully adapt to the different foot shapes and usage scenarios of various users, achieving personalized comfort support and effectively improving the insole's practicality and versatility in various scenarios such as sports and daily walking.
[0030] Specifically, such as Figure 1 As shown, the upper surfaces of the foot pad 2 and the heel pad 4 are provided with hollowed-out areas, and the upper surface of the massage pad 10 is provided with massage protrusions.
[0031] The foot pads 2 and 4 utilize hollowed-out areas to fit more closely to the wearer's feet, improving safety and comfort.
[0032] Specifically, such as Figure 1 As shown, the insole body 1, anti-slip pad 5, support component 7, foot pad 2, arch pad 3, heel pad 4 and massage pad 10 are all made using 3D printing one-piece molding process. The insole body 1 and anti-slip pad 5 are separated by 3D printing with different materials of different hardness.
[0033] Working principle and usage process of this utility model:
[0034] When the wearer begins to walk and takes the first step, the heel makes contact with the ground first, and the body weight is instantly applied to the heel buffer zone of the insole body 1. At this time, the support column 3 703 located at the rear of the buffer groove 6 inside the anti-slip pad 5 quickly plays its role with its X-shaped structure, dispersing the impact force generated by the heel landing in multiple directions. At the same time, it provides stable support by utilizing structural rigidity, effectively reducing the local pressure peak on the heel and avoiding excessive impact on the heel and ankle.
[0035] As the body's center of gravity shifts forward, the arch of the foot gradually bears pressure, and the support column 701 begins to work. Located in the middle of the buffer groove 6, the support column 701, with its combination of rigidity and elasticity, undergoes moderate elastic deformation under the pressure of the arch. In this process, it not only absorbs some of the pressure, but also maintains the normal shape of the arch through stable support, preventing the arch support area from collapsing due to long-term stress, and effectively reducing the fatigue of the arch during walking.
[0036] When the body's center of gravity is fully transferred to the forefoot, and the foot is ready to push off the ground to take the next step, the pressure on the forefoot support area reaches its peak. At this time, the rhomboid support column 702 plays a dual role: on the one hand, the rhomboid structure compresses and deforms downward along the diagonal direction when under pressure, and the side is squeezed against the inner wall of the anti-slip pad 5, which significantly increases the friction between the two, causing the insole body 1 to fit more closely to the foot, thereby greatly improving the forefoot grip and preventing slippage; on the other hand, the elastic deformation of the support column 702 effectively buffers the pressure on the forefoot and evenly distributes the impact force when pushing off the ground.
[0037] Throughout the walking cycle, the anti-slip pad 5 maintains a high friction with the sole thanks to the anti-slip groove 8, ensuring that the insole remains stable and does not slip inside the shoe; the internal cushioning groove 6 provides flexible movement space for the support component 7, enhancing the overall cushioning performance.
[0038] 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 partitioned support 3D printed insole, comprising an insole body (1), characterized in that, The lower surface of the insole body (1) is provided with an anti-slip pad (5), and the inside of the anti-slip pad (5) is provided with a buffer groove (6). The buffer groove (6) is provided with a support component (7) for supporting the insole body (1). The support component (7) includes a support column one (701), a support column two (702) and a support column three (703) located inside the buffer groove (6). The upper surface of the insole body (1) is provided with a forefoot support area, an arch support area and a heel buffer area from front to back. The forefoot support area is provided with a foot pad (2), the arch support area is provided with an arch pad (3) and a massage pad (10), and the heel buffer area is provided with a heel pad (4).
2. The partitioned support 3D printed insole according to claim 1, characterized in that, The bottom of the anti-slip mat (5) is provided with an anti-slip groove (8), and the inner wall of the anti-slip groove (8) is provided with a breathable groove (9). The breathable groove (9) penetrates the side wall of the anti-slip groove (8) and communicates with the outside.
3. The partitioned support 3D printed insole according to claim 1, characterized in that, The first support column (701) is located directly below the arch support area, the second support column (702) is located directly below the forefoot support area, and the third support column (703) is located directly below the heel buffer zone.
4. The partitioned support 3D printed insole according to claim 3, characterized in that, The second support column (702) is rhomboid and arranged in a parallel array below the insole body (1), and the third support column (703) is X-shaped and arranged in a parallel array below the insole body (1); the first support column (701), the second support column (702) and the third support column (703) have different heights.
5. A partitioned support 3D printed insole according to claim 1, characterized in that, The upper surfaces of the foot pad (2) and heel pad (4) are provided with hollowed-out areas, and the upper surface of the massage pad (10) is provided with massage protrusions.
6. The partitioned support 3D printed insole according to claim 1, characterized in that, The insole body (1), anti-slip pad (5), support component (7), sole pad (2), arch pad (3), heel pad (4) and massage pad (10) are all made using 3D printing integrated molding process. The insole body (1) and anti-slip pad (5) are layered with materials of different hardness through 3D printing.