A shoe insole for training injury prevention

Abstract

The utility model discloses a kind of for training injury protection insoles, including insole main body, arch support module, transverse arch support module and buffer module, the insole main body successively includes surface layer of moisture absorption and sweat release, intermediate interlayer and bottom layer with ventilating structure from top to bottom;Arch support module is set in the arch area of the insole main body, including a piece of high-elasticity arch support sheet;Transverse arch support module is set in the area of the metatarsal head corresponding to the forefoot rear end of the insole main body, including a three-dimensional support pad that imitates human transverse arch curvature;Buffer module includes independently set in the forefoot area of the insole main body forefoot buffer pad and independently set in heel area heel buffer pad.This protective insole can integrate arch support, transverse arch stability and partitioned buffer and other multiple functions, and can adapt to different user needs.

Description

Technical Field

[0001] This utility model relates to the field of rehabilitation exercise device technology, specifically to a protective insole for training injuries. Background Technology

[0002] In sports and military training, the feet are subjected to high-intensity, repetitive impact loads, making them highly susceptible to various training injuries such as stress fractures, plantar fasciitis, and metatarsalgia. Functional insoles, as an important protective device, directly impact foot health and comfort due to their performance.

[0003] Currently, functional insoles on the market are mainly designed to solve specific problems and can be roughly divided into two categories: one is support insoles, which usually correct flat feet and improve overpronation by embedding rigid or semi-rigid support plates in the arch area, but they often have insufficient for forefoot cushioning and overall breathability; the other is cushioning insoles, which focus on using elastic foam or gel materials to absorb impact in areas such as the heel and forefoot, but have limited effect on the stability support of the arch, especially the transverse arch.

[0004] However, the foot is a complex biomechanical structure containing longitudinal and transverse arches, and it experiences impacts from multiple directions during movement, with different areas having varying functional requirements. Existing insoles suffer from the following significant drawbacks: First, they are functionally limited and lack comprehensiveness. Most products focus only on a single function such as support or cushioning, failing to provide an integrated solution that can simultaneously meet multiple biomechanical needs, such as dynamic arch support, transverse arch stability, and zoned cushioning. For example, a supportive insole may not effectively alleviate the peak impact force when the heel strikes, while a cushioning insole may not prevent metatarsalgia due to a lack of support for the transverse arch.

[0005] Secondly, there is poor structural integration. Even if some insoles attempt to combine multiple functions, they are usually just simple stacking or layering of different materials, failing to make targeted, integrated modular designs based on the physiological characteristics and mechanical loads of different areas of the foot. This simple stacking can easily lead to the insole being bulky overall, rigid in some areas, poor coordination between functional areas, and may even cause structural separation during exercise, affecting the performance and durability. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a comprehensive training protective insole that can integrate multiple functions such as arch support, transverse arch stability and zoned cushioning, and can adapt to the needs of different users.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a training injury protection insole, comprising: The insole body comprises, from top to bottom, a moisture-wicking surface layer, a middle layer, and a bottom layer with a breathable structure; An arch support module is provided in the arch area of ​​the insole body, including a highly elastic arch support piece; A transverse arch support module, located in the area at the rear forefoot corresponding to the metatarsal heads of the insole body, includes a three-dimensional support pad that mimics the curvature of the human transverse arch; and The cushioning module includes a forefoot cushioning pad independently disposed in the forefoot area of ​​the insole body and a heel cushioning pad independently disposed in the heel area.

[0008] Furthermore, the crossbow support module is a teardrop-shaped structure made of foam material.

[0009] Furthermore, both the forefoot cushioning pad and the heel cushioning pad are made of polyurethane foam material.

[0010] Furthermore, the bottom layer of the insole body is provided with honeycomb-shaped ventilation holes.

[0011] Furthermore, the forefoot area of ​​the insole body has multiple through holes extending through its thickness direction.

[0012] Furthermore, the heel portion of the insole body extends upward to form a raised heel cup with a height of 20mm.

[0013] Furthermore, the forefoot edge of the insole body is provided with cutting marks corresponding to different sizes, so that users can cut the insole according to their foot size along the cutting marks.

[0014] Furthermore, the arch support plate, transverse arch support module, forefoot cushioning pad, and heel cushioning pad are integrally formed with the insole body through a molding process.

[0015] The above-mentioned insoles for protecting training injuries have at least the following advantages: 1. By integrating the arch support module, transverse arch support module, and independently designed forefoot and heel cushioning pads into a single insole body, this insole can simultaneously and synergistically target the longitudinal arch, transverse arch, and major stress points (forefoot and heel). This overcomes the limitations of existing insoles with their single function, providing a complete protective solution for the foot. It can effectively prevent and alleviate various training injuries caused by insufficient support, transverse arch collapse, and excessive impact load, such as plantar fasciitis, metatarsalgia, and calcaneal pain.

[0016] 2. Because the cushioning module includes independently designed forefoot and heel cushioning pads, the insole can be optimized with the most suitable cushioning materials and thicknesses for the two areas with different peak forces: forefoot impact and heel impact. This achieves precise cushioning and avoids the bulkiness and sluggish response of a single piece of cushioning material. Simultaneously, the inclusion of arch support and transverse arch support modules ensures targeted and effective support, avoiding the problem of a single support structure being unable to simultaneously address the stability of both the longitudinal and transverse arches. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 A schematic diagram showing the shape of the upper surface of a training injury protective insole according to an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram showing the shape of the lower surface of a training injury protective insole; Figure 3 for Figure 1 The diagram shown illustrates the surface layer, intermediate layer, and bottom layer of the insole body in a training injury protection insole. Figure 4 for Figure 1 The diagram shown is a schematic of the transverse arch support module in a training injury protection insole. Figure 5 for Figure 1 The diagram shown is a schematic of the arch support module, forefoot cushioning pad, and heel cushioning in an insole used for training injury protection. Figure 6 for Figure 1 The diagram shows the distribution of ventilation holes and through holes on the insole used for training injury protection. Figure 7 for Figure 1 The right view shown is of the insole used for training injury protection. Figure 7 (a) ), bottom view ( Figure 7 (b) Left view ( Figure 7 (c) ), Views A1-A2 in Figure b ( Figure 7 (d) Top view ( Figure 7 (e)); Figure 8 for Figure 7 (b) Schematic diagram of B1-B2, C1-C2, D1-D2; Figure 9 for Figure 7 (b) Schematic diagram of E1-E2; Figure label: 100. Insole body; 110. Surface layer; 120. Middle layer; 130. Bottom layer; 140. Ventilation holes; 150. Through holes; 160. Cutting marks; 200. Arch support module; 300. Transverse arch support module; 400. Cushioning module; 410. Forefoot cushioning pad; 420. Heel cushioning pad. Detailed Implementation

[0019] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0020] This invention provides a training injury protection insole, aiming to solve the problem that existing insoles have limited functionality and cannot fully meet the biomechanical needs of the foot. Through a modular, zoned design, this insole integrates multiple functions such as arch support, transverse arch stability, and zoned cushioning, effectively preventing foot injuries during sports and military training.

[0021] Please see Figures 1 to 8 The insole for training injury protection in this embodiment mainly includes an insole body 100, and an arch support module 200, a transverse arch support module 300 and a cushioning module 400 integrated thereon.

[0022] The main body of the insole 100 adopts a multi-layer composite structure. From top to bottom, the components are: The surface layer 110 is in direct contact with the sole of the foot, and its main function is to wick away moisture and sweat, keeping the feet dry and improving comfort. The middle layer 120 provides the main base elasticity and cushioning, and also has antibacterial functions. The bottom layer 130, as the layer in contact with the insole, has a breathable structure to ensure the overall ventilation and breathability of the insole.

[0023] The arch support module 200 is fixedly installed in the arch area of ​​the insole body 100 and includes a highly elastic arch support plate. This support plate has a certain degree of rigidity and resilience, providing dynamic and continuous upward support to the arch. This helps maintain the normal physiological curvature of the arch, preventing excessive pronation (flat foot tendency) caused by arch collapse during prolonged standing, walking, or running, thereby distributing pressure on the sole of the foot and reducing the risk of ligament and muscle fatigue and injury. In practice, the arch support module 200 can be fixed to the lower surface of the bottom layer 130. Alternatively, it can be fixed between the intermediate layer 120 and the bottom layer 130.

[0024] Transverse arch support module 300: Located at the rear forefoot of the insole body 100, corresponding to the area of ​​the metatarsal heads. In practice, it can be fixed between the middle layer 120 and the bottom layer 130, or on the lower surface of the surface layer 110. Its core is a three-dimensional support pad that mimics the natural curvature of the human transverse arch. During the gait cycle, the forefoot area (especially the metatarsal heads) bears enormous pressure. This three-dimensional support pad effectively lifts and supports the transverse arch, preventing excessive pressure on the metatarsal heads, thereby dispersing forefoot pressure, absorbing the impact of running and jumping, reducing the risk of metatarsalgia, and improving forefoot stability and grip during walking and running.

[0025] The cushioning module 400 includes a forefoot cushioning pad 410 independently disposed in the forefoot area of ​​the insole body 100 and a heel cushioning pad 420 independently disposed in the heel area. In specific implementation, it can be fixed to the lower surface of the bottom layer 130. Of course, it can also be fixed between the intermediate layer 120 and the bottom layer 130.

[0026] This zoned, independent design allows for the use of the most suitable cushioning material and thickness for different areas. The forefoot cushioning pad 410 primarily mitigates the impact during push-off and acceleration, while the heel cushioning pad 420 mainly absorbs the peak impact force when the heel lands. Together, they achieve precise and efficient cushioning, avoiding the problems of bulkiness, sluggish response, or insufficient support that can result from using a single cushioning material across the entire surface.

[0027] In this embodiment, the crossbow support module 300 is specifically designed as a teardrop-shaped structure made of foam material.

[0028] The teardrop shape, wider at the front and narrower at the back, conforms to the anatomical structure of the forefoot. The wider end corresponds to multiple metatarsal heads, while the narrower end is integrated into the main body of the insole, ensuring maximum support area and no discomfort.

[0029] The 300 transverse arch support module can be made of foam material: foam is flexible, conforms well, and resists deformation. As a transverse arch support pad, it provides sufficient support without being too hard and uncomfortable to the feet, ensuring a balance between comfort and functionality.

[0030] In practical implementation, both the forefoot cushioning pad 410 and the heel cushioning pad 420 are made of polyurethane foam. Polyurethane foam has excellent cushioning and shock absorption performance and energy feedback characteristics, while also possessing high durability and resistance to compressive deformation. Using this material ensures that the cushioning module 400 can still effectively distribute plantar pressure and absorb impact during long-term, high-intensity training, preventing failure due to premature material fatigue.

[0031] Specifically, the bottom layer 130 of the insole body 100 is provided with honeycomb-shaped ventilation holes 140. The honeycomb structure is a proven high-strength, high-breathability design. These holes not only greatly increase the air circulation channels at the bottom of the insole, helping to expel moisture and heat from the feet, but also provide additional lightweight and micro-cushioning effects without significantly sacrificing support.

[0032] The forefoot area of ​​the insole body 100 has multiple through-holes 150 running through its thickness. Since the forefoot is the area with the highest concentration of sweat glands and is most prone to sweating, these through-holes 150 form a vertical ventilation channel from the surface layer 110 directly into the shoe, quickly wicking away sweat and significantly enhancing the insole's perspiration wicking and breathability in this area, keeping feet dry and preventing skin problems caused by dampness.

[0033] In practice, the heel portion of the insole body 100 can be extended upwards to form a raised heel cup with a height of 20mm. This raised heel cup can wrap around and lock the calcaneus from the rear and side. It can effectively inhibit the inversion or supination of the calcaneus during exercise (i.e., excessive internal or external rotation), greatly improving heel stability, thereby correcting the overall gait and reducing the risk of abnormal force lines and chain injuries caused by calcaneal instability.

[0034] To facilitate cutting, cutting markings 160 corresponding to different sizes are provided along the forefoot edge of the insole body 100. This design allows manufacturers to produce insoles suitable for multiple size ranges using the same set of molds. After purchase, users can trim the insoles along the corresponding cutting markings 160 according to the actual length of their feet. This greatly improves the versatility and adaptability of the product, reduces inventory and production complexity, and also enables a certain degree of personalization.

[0035] During manufacturing, the arch support module 200, transverse arch support module 300, forefoot cushioning pad 410, and heel cushioning pad 420 can be integrally molded with the insole body 100 using a molding process. Molding is a highly efficient processing method for plastics and composite materials. Using CNC molds, different functional material layers and modules are pressed into a robust whole under high temperature and pressure, ensuring a firm connection between each functional module and the insole body 100, preventing displacement or detachment, guaranteeing the long-term stability and reliability of the product structure, and making it suitable for mass production. In specific implementation, the arch support plate, forefoot cushioning pad 410, and heel cushioning pad 420 can all be molded onto the bottom layer 130 of the insole body 100.

[0036] In addition, the surface layer 110 of the insole body 100 can be made of polyurethane fabric, which has the advantages of moisture absorption and wicking, softness and skin-friendliness, and inhibition of bacterial growth. The middle layer 120 can preferably be made of eusole material, which is a common functional foam with good cushioning, breathability and antibacterial and odor-resistant properties.

[0037] The bottom layer 130 fabric is preferably made of EVA foam, which is lightweight, flexible, and has excellent shock absorption and cushioning properties, making it an ideal material for the bottom layer 130 of the insole. Each module is seamlessly bonded to the main insole 100 using ultrasonic welding. Ultrasonic welding utilizes high-frequency vibration waves to melt and connect the molecules at the contact surfaces. Its advantages include a smooth and seamless connection, avoiding the problems of glue separation and friction points that may arise from seams. This makes the internal structure of the insole cleaner and more robust, improving the product's quality and lifespan.

[0038] In summary, this utility model, through the aforementioned modular partitioning design and advanced manufacturing process, provides a training injury protection insole that is fully functional, highly adaptable, comfortable to wear, and durable, effectively overcoming the shortcomings of existing technologies.

[0039] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A training injury protection insole, characterized in that, include: The insole body comprises, from top to bottom, a moisture-wicking surface layer, a middle layer, and a bottom layer with a breathable structure; An arch support module is provided in the arch area of ​​the insole body, including a highly elastic arch support piece; A transverse arch support module, located in the area at the rear forefoot corresponding to the metatarsal heads of the insole body, includes a three-dimensional support pad that mimics the curvature of the human transverse arch; and The cushioning module includes a forefoot cushioning pad independently disposed in the forefoot area of ​​the insole body and a heel cushioning pad independently disposed in the heel area.

2. The insole for protecting training injuries according to claim 1, characterized in that, The horizontal bow support module is a teardrop-shaped structure made of foam material.

3. The insole for protecting training injuries according to claim 1, characterized in that, Both the forefoot cushioning pad and the heel cushioning pad are made of polyurethane foam.

4. The insole for protecting training injuries according to claim 1, characterized in that, The bottom layer of the insole body has honeycomb-shaped ventilation holes.

5. The insole for protecting training injuries according to claim 1, characterized in that, The forefoot area of ​​the insole body has multiple through holes that extend through its thickness.

6. The insole for protecting training injuries according to claim 1, characterized in that, The heel portion of the insole body extends upward to form a raised heel cup with a height of 20mm.

7. The insole for protecting training injuries according to claim 1, characterized in that, The forefoot edge of the insole body is provided with cutting marks corresponding to different sizes, so that users can cut the insole according to their foot size along the cutting marks.

8. The insole for protecting training injuries according to any one of claims 1 to 7, characterized in that, The arch support plate, transverse arch support module, forefoot cushioning pad, and heel cushioning pad are integrally formed with the insole body through a molding process.

Images