Shoe sole structure with adjustable arch support

Abstract

The utility model discloses a sole structure capable of adjusting an arch support, which relates to the technical field of shoes, and comprises an arch support layer formed at the arch position of a sole, and an accommodating cavity with an opening at the outer side is formed between the arch support layer and the sole; the foot arch adjusting device is installed in the containing cavity, the foot arch adjusting device comprises a plurality of fine adjustment mechanisms capable of moving in the width direction of the shoe sole, and through adjustment of the fine adjustment mechanisms, the corresponding long-strip areas on the foot arch supporting layer can be supported at different heights so as to adapt to the foot arch part of a wearer. The foot arch supporting device is individually adaptive to different foot arch forms, is high in adjusting precision and flexibility, and can realize accurate supporting.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of footwear, and specifically relates to a sole structure with adjustable arch support. BACKGROUND

[0002] In the shoe-making technical field, the design of arch support structure is crucial for improving the wearing comfort and health protection performance of shoes. Different wearers have different arch shapes, and even the same wearer's arch may have different support needs in different physiological states and sports scenarios. Therefore, developing a sole structure that can adapt to various arch characteristics and flexibly adjust the arch support effect has become a key research direction to improve shoe quality and user experience.

[0003] Traditional sole arch support structures are usually made of fixed shape and hardness materials, which cannot be adapted to the unique shape of individual arches of wearers. This fixed support structure cannot provide the right amount of support when facing different arch heights, widths, and special arch shapes (such as high arch feet, flat feet, etc.), resulting in discomfort such as fatigue and pain in the arch area of some wearers during long walks or sports, and even causing foot health problems.

[0004] With the increasing attention to the quality of life and sports health, the demand for individualization and adaptability of shoe arch support performance is increasingly prominent. Although there are some shoe products on the market that claim to have adjustable arch support, most of these products have single adjustment mode and limited adjustment precision, making it difficult to achieve fine adjustment of arch support height and unable to truly meet the precise needs of wearers for arch support comfort. For example, some products can only switch between limited support height levels and cannot adjust in real time and continuously according to the subtle changes in the wearer's arch. Some products have complex adjustment structures and are inconvenient to operate, affecting user experience.

[0005] Therefore, it is urgent to develop a new sole structure with adjustable arch support. This structure should have a simple and effective adjustment mechanism to achieve fine and flexible adjustment of arch support height and shape to meet the individual needs of different wearers' arches, improve the wearing comfort and foot health protection performance of shoes, and fill the gap in high-precision and convenient arch support adjustment in existing technology. SUMMARY

[0006] Therefore, the utility model provides a sole structure with adjustable arch support to solve the following problems.

[0007] The technical problem to be solved by the utility model is:

[0008] 1. Solve the problem of poor adaptability of traditional fixed arch support: the traditional sole arch support structure adopts fixed shape and hardness material, which cannot adapt to the differences in height, width and special shape (such as high arch foot, flat foot, etc.) of different wearers' arches, and it is difficult to provide appropriate support force, which can easily cause discomfort such as fatigue and pain in the arch of the wearer, and even cause foot health problems. The utility model needs to realize the effective adaptation of the arch support structure to diversified arch shapes.

[0009] 2. Overcome the defects of insufficient adjustment precision and flexibility of existing adjustable arch support: some shoes on the market claim to have adjustable arch support function, but have the problems of single adjustment mode and limited adjustment precision, which makes it difficult to finely adjust the arch support height and cannot accurately meet the needs of wearers for arch support comfort. For example, only limited gear support height switching can be performed, which cannot respond to subtle changes in the arch; the adjustment structure is complex and inconvenient to operate, affecting user experience. The utility model needs to build a simple and effective arch support adjustment mechanism that can achieve fine and flexible adjustment.

[0010] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0011] A sole structure with adjustable arch support, comprising:

[0012] An arch support layer formed at the arch position of the sole and forming an accommodating cavity with an outside opening between the sole;

[0013] An arch adjustment device installed in the accommodating cavity, the arch adjustment device comprising a plurality of fine adjustment mechanisms movable along the width direction of the sole, through the adjustment of the fine adjustment mechanisms, different height support can be provided to the corresponding long strip area on the arch support layer to adapt to the arch of the wearer.

[0014] Further, the fine adjustment mechanism comprises:

[0015] A support piece slidingly arranged in the housing of the arch adjustment device;

[0016] A screw threadedly connected to the housing, the end of the screw abutting against the end face of the support piece;

[0017] A tension spring connected between the housing and the support piece.

[0018] Further, the lower end of the support piece has a guide bar, and the guide bar is slidingly matched with a sliding groove formed in the bottom wall of the housing.

[0019] Further, the support arc surface of the support piece can abut against the inner wall of the arch support layer.

[0020] Further, the arch support layer is stacked by a plurality of the long strip regions along the length direction of the sole.

[0021] Further, the housing has an inner protrusion, and the screw is threadedly connected to the inner protrusion.

[0022] Further, the inner protrusion has a counterbore for accommodating a knob of the screw.

[0023] Further, the plurality of fine adjustment mechanisms are uniformly distributed or non-uniformly distributed along the length direction of the sole.

[0024] The utility model discloses to the traditional sole arch support structure poor adaptability, the regulation precision and the flexibility are insufficient and other pain points, realize a series of remarkable beneficial effects through the innovative design, and the specific is as follows:

[0025] I. Adaptability is improved significantly, satisfies the demand of multiple arches

[0026] (I) Personalized adaptation different arch shape

[0027] The traditional sole arch support adopts the material of fixed shape and hardness, like " one size fits all " size, is difficult to adapt to the unique arch shape of each person.The utility model discloses that the arch support layer is designed as a plurality of long strip regions superposition structure, and is uniformly or non-uniformly distributed along the length direction of the sole with a plurality of independent fine adjustment mechanisms, like " special puzzle " for different arches.For high arch population, the corresponding fine adjustment mechanism of the corresponding long strip region can be adjusted to increase the support height, so that the arch is fully supported, and the excessive stretching of the plantar fascia is reduced, and for flat foot population, the support height can be reduced to avoid excessive compression of the arch, realize accurate adaptation, and greatly improve the comfort of wearing.

[0028] (II) Dynamic adaptation of arch changes

[0029] The human arch changes in shape under different physiological conditions (such as fatigue, edema) and movement scenarios (such as walking, running, climbing).The utility model allows the wearer to adjust the fine adjustment mechanism at any time according to the comfort feeling of the arch after wearing shoes.When the arch subsides due to fatigue after a long time of walking, the wearer can increase the support height in time to relieve the pressure on the arch, and after the intensity of the movement is reduced, the support height can be appropriately reduced to maintain the natural state of the arch, realize real-time dynamic adaptation, and effectively prevent foot diseases caused by improper arch support.

[0030] II. The regulation precision and flexibility are greatly improved, and accurate support is realized.

[0031] (I) High-precision adjustment meets the subtle needs

[0032] The fine adjustment mechanism adopts a screw thread transmission design. The screw thread cooperates with the protrusion in the shell, and the pitch is small. Taking a screw with a pitch of 0.5 mm as an example, rotating 36° can only move the support piece by 0.05 mm. This small displacement change can accurately change the support height of the corresponding long strip area of the arch support layer, meet the needs of the wearer for fine adjustment of the arch support, and accurately control the support intensity to provide appropriate support for the arch, avoiding the problem of excessive or insufficient support caused by insufficient accuracy in the traditional adjustment mode.

[0033] (II) Flexible adjustment in all directions to adapt to various scenarios

[0034] The plurality of fine adjustment mechanisms are evenly or unevenly distributed along the length direction of the shoe sole, and each fine adjustment mechanism can be independently adjusted. The evenly distributed fine adjustment mechanisms can provide uniform and stable support adjustment for the arch, which is suitable for the case where the arch shape is relatively regular. The uneven distribution is more flexible, and the position and number of the fine adjustment mechanisms can be set according to the pressure distribution and support needs of different parts of the arch of different wearers. For example, when running, the pressure of the front and middle parts of the arch increases, and the wearer can individually increase the support height of the corresponding fine adjustment mechanisms in these parts to achieve flexible adjustment in all directions and adapt to different exercise scenarios and changes in arch stress.

[0035] (III) Elastic auxiliary adjustment to improve comfort and stability

[0036] The tension spring is connected between the shell and the support piece, and plays a role in elastic compensation and buffering during adjustment. When the rotating screw pushes the support piece to move inward, the tension spring is stretched to generate an elastic tension, making the adjustment process smoother. When the support height needs to be lowered, the tension of the tension spring will pull the support piece to move, realizing self-adaptive adjustment. At the same time, the tension spring can also absorb the impact energy when the support piece contacts the arch support layer, reducing the impact on the arch and avoiding discomfort for the wearer. The adjustment is more stable and comfortable, improving the stability and safety of the wearer.

[0037] III. Improve wearing comfort and health protection, enhance user experience

[0038] (I) Effectively relieve foot fatigue and pain

[0039] The utility model can evenly disperse the pressure on the sole, reduce the burden on the fascia, muscles and bones of the foot, and effectively relieve foot fatigue, pain and other problems caused by improper arch support. For people who stand or walk for a long time, such as teachers, sales personnel, etc., using the shoe sole of the utility model can effectively reduce the discomfort of the foot and improve work efficiency and quality of life.

[0040] (II) Enhance sports performance and safety

[0041] In sports scenarios, the high-precision and omnidirectional adjustment function of the present application can provide stable support for the arch, improving the stability and coordination of the movement. For example, in running, basketball and other sports, the wearer can adjust the arch support in real time according to the movement state, reduce the risk of sports injuries such as sprains and falls caused by insufficient arch support, and at the same time improve the sports performance, making the sports more flexible and safe.

[0042] Four, convenient operation and excellent durability, improve the practicality of the product

[0043] Simple operation, the adjustment mode of the present application is simple and intuitive, the wearer only needs to rotate the screw rod to realize the adjustment of the fine adjustment mechanism, without the need for professional tools or complex operation. It is like using a common screwdriver to tighten or loosen the screw, even the elderly and children can easily master it. This convenient operation mode enables the wearer to adjust the arch support at any time and anywhere according to their own needs, improving the practicality and user experience of the product.

[0044] In summary, the present application improves the adaptability, adjustment accuracy and flexibility of the arch support of the shoe sole through innovative structure design and adjustment mechanism, effectively improves the wearing comfort and health protection, and at the same time has the advantages of convenient operation, strong durability, etc., provides a more high-quality and personalized arch support solution for consumers, and has broad market application prospect and social value. BRIEF DESCRIPTION OF DRAWINGS

[0045] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments of these drawings illustrate the present application and, together with their description, serve to explain the application without imposing undue limitation thereto.

[0046] Figure 1 It is a structural schematic diagram of a shoe.

[0047] Figure 2 It is a partial schematic diagram of the present application.

[0048] Figure 3 It is a structural schematic diagram of the arch support layer of the present application divided into multiple strip regions.

[0049] Figure 4 It is an A-A sectional view of the present application. Figure 3

[0050] Figure 5 It is a schematic diagram of the relationship between the arch support layer and the accommodating cavity of the present application.

[0051] Figure 6 It is a perspective view of the support sheet of the present application.

[0052] ​Figure 7 is a perspective view of the shell of the utility model.

[0053] The reference signs are as follows: 1-shoe 1; 2-sole; 3-upper; 4-arch support device; 41-shell; 42-cavity; 43-inner protruding part; 44-counterbore; 45-slotted guide; 46-screw; 461-knob; 47-upper opening; 48-supporting sheet; 481-guiding strip; 482-abutting surface; 483-supporting arc surface; 5-arch support layer; 51-long strip area; 6-housing cavity; 61-outer opening; 7-tension spring. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the utility model is further described in detail below in combination with embodiments and drawings. Herein, the illustrative embodiments of the utility model and the description thereof are used to explain the utility model, but not as a limitation on the utility model.

[0055] Traditional sole arch support structures mostly adopt fixed shape and hardness materials (such as traditional EVA integrally formed arch support blocks), which are difficult to adapt to the complex and diverse arch shapes of different wearers. For high arch population, fixed support blocks may excessively press the arch, causing pain; flat foot population may be insufficiently supported, leading to long-term tension of plantar fascia, and prone to plantar fasciitis and other diseases. Moreover, existing adjustable arch support designs have single adjustment mode (mostly overall support block height adjustment) and limited precision (large adjustment range span), and cannot real-time and finely adjust the support according to the pressure changes of different parts of the arch, and are difficult to meet the individualized and dynamic support requirements.

[0056] Based on this, the utility model designs a sole structure capable of precisely adjusting arch support, which effectively solves the above problems through modularized partition support, independent fine adjustment mechanism and elastic auxiliary adjustment and other innovative designs.

[0057] Traditional sole arch support structures cannot adapt to the diversified arch shapes of different wearers due to the use of fixed shape and hardness materials, thereby causing many foot discomforts and health hazards. The utility model effectively solves this poor adaptability technical problem through a series of innovative designs, and the specific process is as follows:

[0058] 1. Modularized partition of arch support layer:

[0059] In combination with Figure 2 , Figure 3The arch support layer 5 is designed to be stacked by a plurality of long strip areas 51 along the length direction of the shoe sole 2. This modular partitioning method discards the traditional integral support structure and subdivides the arch support layer 5 into a plurality of independent and individually forceable parts. Each long strip area 51 can independently deform when subjected to an adjusting force, thereby realizing targeted support for different parts of the arch. For example, for a wearer with a narrower front and a wider rear of the arch, different long strip areas 51 can be adjusted in height according to actual needs, the front long strip area 51 can be adjusted with a smaller amplitude, and the rear long strip area 51 can be adjusted with a larger amplitude, so as to perfectly fit the unique arch shape.

[0060] 2. Independent fine adjustment mechanism layout of the arch adjustment device:

[0061] As Figure 2 , Figure 4 , Figure 5 , the accommodating cavity 6 with the lateral opening 61 is formed at the arch position of the shoe sole 2, and the arch adjustment device 4 is installed therein. The device comprises a plurality of fine adjustment mechanisms movable along the width direction of the shoe sole 2, and the fine adjustment mechanisms are uniformly or non-uniformly distributed along the length direction of the shoe sole 2. When uniformly distributed, the arch can be provided with uniform and stable support adjustment, which is suitable for wearers with relatively regular arch shapes; when non-uniformly distributed, the flexibility is higher, and the positions and quantities of the fine adjustment mechanisms can be set according to the pressure distribution and support requirements of different parts of the arch. For example, more fine adjustment mechanisms are arranged in the arch pressure concentration area to provide stronger support adjustment capability, so as to ensure that each part of the arch can be supported to the right degree.

[0062] 3. Precise fitting of the fine adjustment mechanism, and sliding adjustment mechanism of the support sheet:

[0063] As Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , the support sheet 48 in the fine adjustment mechanism is slidably arranged in the housing 41 of the arch adjustment device 4, and the lower end of the support sheet 48 is provided with a guide strip 481 Figure 4The position relationship of the middle guide strip 481 in the sliding groove 45 is shown in the figure. This design ensures the stability and accuracy of the support sheet 48 during movement, avoiding shaking and deviation during movement. When the position of the support sheet 48 needs to be adjusted, the support sheet 48 can smoothly slide along the sliding groove 45, accurately changing its position in the width direction of the sole 2, thereby achieving precise adjustment of the support height of the corresponding long strip area 51 of the arch support layer 5. For example, during walking, if it is found that the arch support is insufficient in a certain part, the position of the corresponding support sheet 48 can be adjusted to make it fit the arch more closely and provide stronger support.

[0064] 4. Screw and tension spring cooperative driving adjustment:

[0065] As Figure 4 , the screw 46 is threadedly connected to the housing 41, and the end thereof abuts against the end face of the support sheet 48 Figure 4 The contact position of the end of the screw 46 and the end face of the support sheet 48 can be clearly shown, and the tension spring 7 is connected between the housing 41 and the support sheet 48. By rotating the screw 46, the moving direction and distance of the support sheet 48 can be accurately controlled. When the screw 46 is rotated to move inward, the end of the screw 46 pushes the support sheet 48 to overcome the tension of the tension spring 7, so that the support sheet 48 moves inward in the width direction of the sole 2, and the support arc surface 483 of the support sheet 48 approaches the inner wall of the arch support layer 5, thereby increasing the support height of the corresponding long strip area 51; on the contrary, when the screw 46 is rotated to move outward, the tension of the tension spring 7 pulls the support sheet 48 to move outward, and the support arc surface 483 moves away from the inner wall of the arch support layer 5, thereby reducing the support height of the corresponding long strip area 51. This screw 46 and tension spring 7 cooperative driving adjustment method not only is simple to operate, but also can realize fine adjustment of the position of the support sheet 48, and meets the individualized needs of different wearers for the support height of the arch.

[0066] 5. Real-time dynamic adaptation to the changes of the arch of the wearer, and self-adjustment of the wearer to realize dynamic adaptation:

[0067] The utility model allows the wearer to adjust the fine adjustment mechanism at any time after wearing the shoes according to the comfort feeling of the arch of the wearer. When the wearer feels that the comfort of the arch is low, the support sheet 48 can be moved inward or outward in the width direction of the sole 2 by rotating the screw 46, so that the long strip area 51 is raised or lowered, and the arch support layer 5 is adapted to the arch of the wearer. This real-time dynamic adjustment mechanism fully considers the changes of the support demand of the arch of different wearers in different physiological states and motion scenes, and ensures that the shoes can always provide the best arch support effect for the wearer. For example, after a long time of walking, the arch may change due to fatigue, and at this time the wearer can adjust the arch support of the sole in time to relieve the fatigue of the arch and avoid discomfort and injury of the foot.

[0068] 6. The opening design on the cavity ensures the effectiveness of the adjustment:

[0069] As shown in Figure 4 and Figure 7 , the shell 41 of the arch adjustment device 4 has a cavity 42 for accommodating the support sheet 48, and the cavity 42 has an upper opening 47 into which the arch support layer 5 can enter or move away from. The provision of the upper opening 47 facilitates the sufficient contact between the support sheet 48 and the arch support layer 5, ensures that the support sheet 48 can smoothly interact with the arch support layer 5 during movement, and realizes effective adjustment of the support height. At the same time, the upper opening 47 also facilitates the wearer to observe the contact between the support sheet 48 and the arch support layer 5, making it convenient for him to perform adjustment operations, and further improves the accuracy and effectiveness of the adjustment.

[0070] Through the comprehensive use of the above structural design, fine adjustment mechanism innovation and real-time dynamic adjustment mechanism, the utility model successfully solves the problem of poor adaptability of traditional fixed arch support, and can provide personalized and precise arch support for different wearers, effectively improving the wearing comfort and foot health protection performance of the shoes.

[0071] In addition, the existing adjustable arch support shoes have defects such as single adjustment mode and limited adjustment precision, and it is difficult to realize fine and flexible adjustment of the arch support height and shape, and it is difficult to accurately meet the needs of the wearer for the comfort of the arch support. The utility model effectively solves this technical problem through a series of innovative designs, and the specific process is as follows:

[0072] 1. Screw thread transmission and fine rotation control:

[0073] As shown in Figure 4 , Figure 5 , Figure 6 , the screw rod 46 in the fine adjustment mechanism is threadedly connected to the shell 41, and the shell 41 has an inner protrusion 43, and the screw rod 46 is threadedly connected to the inner protrusion 43. This design enables the rotational movement of the screw rod 46 to be accurately converted into the linear movement of the support sheet 48. Due to the small pitch of the thread, the screw rod 46 moves a very small distance when it rotates by a certain angle, thereby realizing fine adjustment of the position of the support sheet 48. For example, when the pitch of the screw rod 46 is 0.5 mm, the screw rod 46 rotates 36°, and the support sheet 48 moves only 0.05 mm. This small displacement change can accurately change the support height of the corresponding long strip area 51 of the arch support layer 5, and meet the needs of the wearer for fine adjustment of the arch support.

[0074] The inner protrusion 43 also has a counterbore 44 that accommodates the knob 461 of the screw rod 46. The design of the counterbore 44 not only serves as a positioning function for the screw rod 46, preventing it from deviating during rotation, but also allows the knob 461 to be fully embedded, avoiding interference with other components and ensuring smoothness and accuracy during adjustment.

[0075] 2. Support sheet guide and limit to ensure adjustment stability

[0076] As Figure 4 , Figure 5 , Figure 6 and Figure 7 , the guide bar 481 at the lower end of the support sheet 48 is in sliding cooperation with the sliding groove 45 on the bottom wall of the shell 41. The close cooperation between the guide bar 481 and the sliding groove 45 provides precise guidance for the movement of the support sheet 48, allowing it to move only in the width direction of the sole 2, avoiding unstable situations such as shaking and tilting of the support sheet 48 during movement, thereby ensuring the accuracy and reliability of the adjustment. At the same time, the limiting structure at both ends of the sliding groove 45 limits the movement range of the support sheet 48, preventing it from moving excessively and leaving the normal working position, ensuring the safety and stability of the adjustment process.

[0077] 3. Elastic element assists adjustment to improve flexibility and comfort, and spring elasticity compensation for adaptive adjustment:

[0078] As Figure 4 , Figure 5 , Figure 6 and Figure 7 , the tension spring 7 is connected between the shell 41 and the support sheet 48. During adjustment, the tension spring 7 plays a role in elastic compensation. When the rotating screw rod 46 pushes the support sheet 48 to move inward, the tension spring 7 is stretched, generating an elastic tension; when it is necessary to lower the support height, the rotating screw rod 46 moves it outward, and the tension of the tension spring 7 will pull the support sheet 48 to move, making the adjustment process smoother. This elastic compensation mechanism makes the movement of the support sheet 48 more flexible, allowing it to adapt to the actual needs of the wearer and the pressure changes of the arch. For example, during the wearer's walking, the pressure of the arch will change dynamically with the pace, and the elastic action of the tension spring 7 can make the support sheet 48 adjust its position in real time, always providing appropriate support for the arch, improving the comfort of wearing.

[0079] 4. Elastic buffer to reduce adjustment impact and discomfort:

[0080] The elastic buffering effect of the tension spring 7 can also reduce the impact on the arch during adjustment. When the support sheet 48 is in contact with the arch support layer 5 and exerts a support force, the tension spring 7 can absorb part of the impact energy, preventing the support sheet 48 from exerting excessive instantaneous pressure on the arch support layer 5, thereby reducing the discomfort of the wearer. Especially in the case of frequent adjustment of the support height, the elastic buffering of the tension spring 7 can make the adjustment process more stable and comfortable, without causing obvious vibration or compression to the wearer.

[0081] 5. The distribution of fine-tuning mechanisms enables flexible adjustment in all directions, and uniform and non-uniform distribution meets diverse needs

[0082] The multiple fine-tuning mechanisms are uniformly distributed or non-uniformly distributed along the length direction of the sole 2. The uniformly distributed fine-tuning mechanisms can provide uniform and stable support adjustment for the arch, which is suitable for wearers with relatively regular arch shape and consistent support needs. In this case, the adjustment range of each fine-tuning mechanism for the corresponding long strip area 51 of the arch support layer 5 is similar, which can provide the arch with relatively balanced support force and improve the stability and comfort of wearing.

[0083] The non-uniformly distributed fine-tuning mechanisms are more flexible, and the positions and quantities of the fine-tuning mechanisms can be set according to the pressure distribution and support needs of different parts of the arch of different wearers. For example, for wearers with greater pressure on the front part of the arch and less pressure on the back part, more fine-tuning mechanisms can be arranged on the front part of the arch, and the adjustment range of these fine-tuning mechanisms can be appropriately increased to provide stronger support; while the number of fine-tuning mechanisms on the back part of the arch can be reduced or the adjustment range can be reduced to make the support more suitable for the actual stress condition of the arch. This non-uniform distribution design can meet the individual needs of different wearers for arch support and achieve flexible adjustment in all directions.

[0084] 6. Independent adjustment for precise fitting and dynamic adjustment

[0085] Each fine-tuning mechanism can independently adjust the corresponding long strip area 51 of the arch support layer 5. The wearer can individually adjust each fine-tuning mechanism according to the feeling of different parts of the arch. For example, when the wearer feels that the left side of the arch is not supported enough, the corresponding screw rod 46 can be rotated to move the support sheet 48 on that side inward, increasing the support height of the left long strip area 51; while the support height of other parts remains unchanged. This independent adjustment method can precisely adapt to the support needs of different parts of the arch of the wearer and achieve individualized arch support.

[0086] In addition, since each fine adjustment mechanism can be independently adjusted, the wearer can adjust each fine adjustment mechanism in real time according to the dynamic change of the arch pressure during walking or movement. For example, during running, the front and middle parts of the arch pressure will increase, and the wearer can adjust the fine adjustment mechanisms of these parts in time during movement, so that the arch is always in the best support state, improving the comfort and safety of movement.

[0087] Through the fine design of the above fine adjustment mechanism, the elastic element auxiliary adjustment and the distribution optimization of the fine adjustment mechanism, the present application successfully solves the problem of insufficient adjustment precision and flexibility of the existing adjustable arch support, realizes high-precision, all-around and flexible adjustment of the arch support height and shape, and accurately meets the needs of different wearers for arch support comfort.

[0088] Reference Figures 1 to 7 As Figure 1 shown, the present embodiment provides a shoe sole structure with adjustable arch support, and the specific structural composition is as shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 .

[0089] I. Overall structure of the shoe sole

[0090] As Figure 1 shown, the shoe sole 2 includes an upper layer and a lower layer, which are tightly combined by gluing or injection molding process. The upper layer is connected with the upper 1 to provide a comfortable tread surface for the foot; the lower layer is provided with anti-skid lines at the bottom to enhance the walking stability.

[0091] II. Structure of the arch support layer

[0092] The arch support layer 5 is arranged at the arch position of the upper layer of the shoe sole 2 and is formed by stacking a plurality of long strip areas 51 along the length direction of the shoe sole 2 Figure 2 and Figure 3 . Each long strip area 51 is made of rubber or silicone material with a certain thickness and elasticity, and the upper surface thereof is in an arc shape matched with the arch. Each long strip area 51 is allowed to independently deform.

[0093] III. Structure of the arch adjustment device

[0094] Receiving cavity: a receiving cavity 6 with an outer opening 61 formed at the arch position of the shoe sole 2 Figure 5 , the opening of which faces the outer side of the shoe sole, facilitating the installation and adjustment of the arch adjustment device 4.

[0095] Arch adjusting device body: the arch adjusting device 4 comprises a shell 41, which is a rectangular hollow structure, and a cavity 42 is formed inside the shell 41 Figure 4 and Figure 7 The upper end of the shell 41 has an upper opening 47, and the long strip area 51 of the arch support layer 5 can enter or move away from the upper opening 47 to realize contact or separation with the support sheet 48.

[0096] Fine adjustment mechanism:

[0097] Support sheet: a plurality of support sheets 48 are slidingly arranged in the cavity 42 of the shell 41 Figure 4 The support sheet 48 is a rectangular sheet, and the lower end is provided with a guide strip 481 which is a semicircular protrusion.

[0098] Slide groove: a slide groove 45 is formed on the bottom wall of the shell 41 corresponding to the position of the guide strip 481, which is a semicircular groove. The guide strip 481 and the slide groove 45 are slidingly matched to ensure that the support sheet 48 moves smoothly along the width direction of the sole 2.

[0099] Screw rod: the shell 41 has an inner protrusion 43, and a threaded hole is formed on the inner protrusion 43. The screw rod 46 is threadedly connected to the threaded hole of the inner protrusion 43, and one end of the screw rod 46 is provided with a knob 461 for easy rotation operation; the other end abuts against the abutting surface 482 of the support sheet 48.

[0100] Counterbore: the inner protrusion 43 has a counterbore 44 for accommodating the knob 461 of the screw rod 46, and the depth of the counterbore 44 is slightly greater than the thickness of the knob 461 to prevent the knob 461 from interfering with other components.

[0101] Tension spring: one end of the tension spring 7 is connected to a hook on the side wall of the shell 41, and the other end is connected to a hook on the side of the support sheet 48, which provides elastic tension to the support sheet 48.

[0102] III. Implementation steps

[0103] I. Install the arch adjusting device

[0104] Insert the arch adjusting device 4 into the accommodation cavity 6 from the outer opening 61 of the sole 2, and ensure that the shell 41 is tightly fitted with the inner wall of the accommodation cavity 6 to prevent shaking during use.

[0105] Check whether each support sheet 48 can smoothly slide in the slide groove 45, whether the screw rod 46 can normally rotate, and whether the tension spring 7 is firmly connected, to ensure that the arch adjusting device 4 is installed correctly and functions normally.

[0106] II. Initial adjustment of arch support height

[0107] The wearer puts on the shoes, stands on the horizontal ground, and feels the support at the arch. If the arch feels insufficient support at some part, find the arch adjustment device 4 under the corresponding long strip area 51.

[0108] Rotate the knob 461 of the screw rod 46 to move the screw rod 46 inward, push the support piece 48 to overcome the tension of the tension spring 7, and slide along the groove 45 inward. With the movement of the support piece 48, its support arc surface 483 approaches the inner wall of the arch support layer 5, increasing the support height of the corresponding long strip area 51.

[0109] Repeat the above steps to adjust the corresponding fine adjustment mechanism of other long strip areas 51 that need to be adjusted until each part of the arch can get appropriate support and the wearer feels comfortable.

[0110] Three, dynamic adjustment during walking

[0111] During walking, the wearer pays attention to the change of the support force at the arch. If it is found that the support force at some part is insufficient due to arch fatigue or change of exercise intensity, stop walking immediately and adjust the corresponding fine adjustment mechanism of that part.

[0112] Rotate the knob 461 of the screw rod 46 to move the support piece 48 further inward, increasing the support height; if the support force is too large, rotate the screw rod 46 in the opposite direction to move the support piece 48 outward under the tension of the tension spring 7, reducing the support height.

[0113] After adjustment, continue walking and check the adjustment effect. If necessary, fine adjustment can be made again to ensure that the arch is always in the best support state.

[0114] Four, maintenance and adjustment after long-term use

[0115] As the use time of the shoes increases, the arch support layer 5 and the support piece 48 may be affected by wear and tear, affecting the support effect. At this time, the wearer can regularly check and adjust the arch support.

[0116] Put on the shoes again, stand and feel the arch support, and re-adjust each fine adjustment mechanism according to the initial adjustment steps to restore the best effect of arch support and prolong the service life of the shoes.

[0117] Four, the embodiment of the advantages of the invention

[0118] One, the adaptability advantage

[0119] Through the modular partitioning of the arch support layer 5 and the independent fine-tuning mechanism, it can accurately adapt to the diverse arch shapes of different wearers. For example, for high-arched and flat-footed people, the support height of the corresponding long strip area 51 can be adjusted respectively to achieve personalized adaptation and avoid discomfort caused by traditional fixed support structures.

[0120] II. Adjustment accuracy and flexibility advantages

[0121] The screw thread transmission design makes the movement distance of the support piece 48 accurately controllable, meeting the fine adjustment requirements. Multiple fine-tuning mechanisms are independent and can be evenly or unevenly distributed along the length direction of the sole 2, which can be flexibly adjusted in all directions according to the pressure changes of different parts of the arch, and adapt to different sports scenes.

[0122] III. Comfort and health protection advantages

[0123] Precise arch support can evenly distribute foot pressure, relieve foot fatigue and pain, and prevent foot diseases such as plantar fasciitis. The elastic auxiliary adjustment function of the tension spring 7 makes the adjustment process smooth and comfortable, reduces the impact on the arch, and improves the wearing stability and safety.

[0124] IV. Operation convenience and durability advantages

[0125] The adjustment method is simple, only the knob 461 of the screw rod 46 needs to be rotated to complete it, without the need for professional tools. The components are designed reasonably, connected tightly, have good wear resistance and fatigue resistance, and ensure the service life and reliability of the product.

[0126] In summary, the specific implementation manner of the utility model fully demonstrates the advantages of the invention through reasonable structure design and detailed operation steps, and provides a precise, comfortable and durable arch support solution for consumers.

[0127] The above only describes the preferred embodiments of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model embodiments can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A sole structure for adjustable arch support, characterized by, The application relates to a foot-arch support layer (5) formed at the foot-arch position of a shoe sole (2) and a foot-arch adjusting device (4) installed in a containing cavity (6) formed between the foot-arch support layer (5) and the shoe sole (2) and having an outside opening (61). The foot-arch adjusting device (4) comprises a plurality of fine adjustment mechanisms which can be moved along the width direction of the shoe sole, and through the adjustment of the fine adjustment mechanisms, corresponding long strip areas (51) on the foot-arch support layer (5) can be supported at different heights to adapt to the foot-arch of a wearer. The fine adjustment mechanism comprises:

2. The adjustable arch support sole structure of claim 1, wherein, a support sheet (48) slidingly arranged in a shell (41) of the foot-arch adjusting device (4); a screw rod (46) threadedly connected to the shell (41), and the end of the screw rod (46) abutting against the end face of the support sheet (48); a tension spring (7) connected between the shell (41) and the support sheet (48). The lower end of the support sheet (48) is provided with a guide strip (481) which is slidingly matched with a sliding groove (45) formed on the bottom wall of the shell (41).

3. The adjustable arch support sole structure of claim 2, wherein, The support arc face (483) of the support sheet (48) can abut against the inner wall of the foot-arch support layer (5).

4. The adjustable arch support sole structure of claim 3, wherein, The foot-arch support layer (5) is formed by stacking a plurality of long strip areas (51) along the length direction of the shoe sole.

5. The adjustable arch support sole structure of claim 2, wherein, The shell (41) is provided with an inner protruding part (43), and the screw rod (46) is threadedly connected to the inner protruding part (43).

6. The adjustable arch support sole structure of claim 2, wherein, The inner protruding part (43) is provided with a counterbore (44) containing the knob (461) of the screw rod (46).

7. The adjustable arch support sole structure of claim 6, wherein, The plurality of fine adjustment mechanisms are uniformly or non-uniformly distributed along the length direction of the shoe sole.

8. The adjustable arch support sole structure of claim 1, wherein, ​

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