A children's shoe sole that prevents insoles from shifting backward

Abstract

This invention provides a children's shoe sole that prevents insoles from shifting backward, belonging to the field of shoe sole technology. It includes a sole body with several positioning protrusions and an integral top protrusion. The top protrusion surrounds the top edge of the sole body to form a limiting groove for accommodating the insole. The top protrusion extends upward on both sides corresponding to the arch area to form a pair of symmetrical protective walls. At least one elastic member is also provided on the inner side of the top protrusion to provide elastic compression force to the side edge of the insole. The positioning protrusions are wavy, and several of them are arrayed in the forefoot and heel areas. This invention is highly versatile, adaptable to various insoles, effectively prevents insoles from shifting backward, and is lightweight and inexpensive.

Description

Technical Field

[0001] This utility model belongs to the field of shoe sole technology and relates to a children's shoe sole that prevents the insole from shifting backward. Background Technology

[0002] When children run and jump, their feet rub intensely against the insoles. When the friction between the foot and the insole is much greater than the friction between the insole and the sole, the insole can easily shift backward within the shoe, causing it to slide outwards towards the heel. This can cause discomfort and restrict movement for children. Common solutions include applying adhesive to the back of the insole or using Velcro, but the former is difficult to clean, and the latter is more expensive and less durable.

[0003] The existing patent document with authorization publication number CN220403241U discloses a casual shoe with an internal height increase, including an upper, a sole, and a height-increasing insole. The upper is fixed to the upper end of the sole, and the height-increasing insole is installed inside the upper. The surface of the sole near the arch of the foot has an embedding groove, and the height-increasing insole has a corresponding embedding protrusion. When the height-increasing insole is installed inside the upper, the embedding protrusion is embedded in the groove. The surface of the sole near the heel has an adsorption magnet, and the surface of the adsorption magnet is recessed inward. The height-increasing insole has a corresponding iron piece, and when the height-increasing insole is installed inside the upper, the iron piece is attracted to the adsorption magnet.

[0004] However, the aforementioned existing technologies still have the following shortcomings:

[0005] Existing insoles must be specific and cannot use third-party insoles. Users cannot easily replace them with other functional insoles (such as orthopedic insoles or more breathable insoles), thus losing the flexibility of choice. Furthermore, if the insole is damaged, the replacement cost is high. In addition, installing bumps and magnets on the bottom of the insole not only increases the overall weight of the shoe when worn, making the shoe slightly heavier, which does not conform to the modern lightweight design trend, but also further increases the cost. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a children's shoe sole that prevents insoles from shifting backward. This addresses the technical problem mentioned in the background art, where shoe soles can only be fitted with a single type of insole, and the insole is expensive to manufacture. Users cannot flexibly replace insoles with other types based on actual usage. Otherwise, the friction between the foot and the insole will be much greater than the friction between the insole and the sole, causing the insole to slip backward out of the shoe.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A children's shoe sole for preventing insole slippage includes a sole body. The surface of the sole body is provided with a plurality of positioning protrusions for increasing friction and an integral top protrusion. The top protrusion is arranged around the top edge of the sole body to form a limiting groove for accommodating the insole. The top protrusion extends upward on both sides of the corresponding arch area to form a pair of symmetrical protective walls. At least one elastic member is also provided on the inner side of the top protrusion for providing elastic compression force to the side edge of the insole.

[0009] The positioning protrusions are wavy, and several of the positioning protrusions are arrayed in the forefoot and heel areas.

[0010] Furthermore, the elastic element is a strip-shaped elastic protrusion extending along the length of the sole body.

[0011] Furthermore, the top surface protrusion has several anti-slip protrusions on the inner sidewall near the heel area.

[0012] Furthermore, the heel area at the top of the sole body is provided with a recessed U-shaped groove.

[0013] Furthermore, a positioning groove is provided in the arch area at the top of the sole body, and an irregularly shaped carbon plate is fixed in the positioning groove.

[0014] Furthermore, the sole body includes an upper MD midsole and a lower rubber outsole, with the rubber outsole fixedly bonded to the bottom of the MD midsole.

[0015] Furthermore, the bottom of the rubber outsole is provided with multiple grooves.

[0016] Furthermore, the top surface has a buffer portion that extends obliquely upward and protrudes at the front edge of the convex edge.

[0017] Furthermore, the MD insole, positioning protrusion, top surface protrusion, protective wall, buffer part, and elastic element are integrally injection molded.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. This utility model, through the integrated limiting system formed by the positioning protrusion, the top protruding edge, the protective wall, and the elastic element, requires no special structure for the insole itself and eliminates the need for any protrusions or magnetic components on its bottom. This makes this utility model compatible with various general-purpose insoles on the market (such as ordinary insoles, orthopedic insoles, breathable insoles, etc.), allowing users to flexibly replace them as needed, greatly improving the practicality and flexibility of the product, while avoiding the high replacement costs associated with using specialized insoles.

[0020] 2. This utility model significantly increases the contact friction between the insole and the sole body through the array of wave-shaped positioning protrusions, which act like numerous "anti-slip studs" and effectively suppress the backward movement of the insole in the horizontal plane;

[0021] The surrounding top protrusion forms a physical limiting groove, and the protective wall further restricts the displacement of the insole in the arch area, laterally constrains the insole, and greatly reduces the rotation, twisting and overall sliding of the insole to the rear.

[0022] The elastic element continuously applies elastic compression to the side edge of the insole, providing a dynamic clamping force that further reinforces the fixation effect and ensures that the insole remains stable during children's vigorous activities such as running and jumping.

[0023] 3. This utility model features a lightweight structure and low cost. All fixing structures (positioning protrusions, top ridge, protective wall, and elastic components) are integrally injection molded with the MD midsole, eliminating the need for additional metal parts such as magnets and iron sheets as in existing technologies. This not only simplifies the production process and increases manufacturing costs almost without adding anything, but also significantly reduces the overall weight of the sole, making the product lighter, in line with the design trends of children's products, and improving wearing comfort. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0025] Figure 2 This is a side sectional view of an embodiment of the present utility model;

[0026] Figure 3 This is a side view of an embodiment of the present utility model;

[0027] Figure 4 This is a front sectional view of an embodiment of the present utility model.

[0028] Explanation of reference numerals in the attached diagram: 1. Shoe sole body; 2. Positioning protrusion; 3. Top surface protrusion; 4. Protective wall; 5. Elastic component; 6. Anti-slip protrusion; 7. U-shaped groove; 8. Positioning groove; 9. Irregularly shaped carbon plate; 10. MD midsole; 11. Rubber outsole; 12. Groove; 13. Cushioning part. Detailed Implementation

[0029] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0030] like Figure 1-3As shown, a children's shoe sole for preventing insole slippage includes a sole body 1. The surface of the sole body 1 is provided with a plurality of positioning protrusions 2 for increasing friction and an integral top surface protrusion 3. The top surface protrusion 3 is arranged around the top edge of the sole body 1 to form a limiting groove for accommodating the insole. The top surface protrusion 3 extends upward on both sides of the corresponding arch area to form a pair of symmetrical protective walls 4. The inner side of the top surface protrusion 3 is also provided with at least one elastic member 5 for providing elastic compression force to the side edge of the insole. The elastic member 5 is a strip-shaped elastic protrusion extending along the length direction of the sole body 1.

[0031] The positioning protrusions 2 are wavy, and a number of the positioning protrusions 2 are arrayed in the forefoot and heel areas; the arrayed wavy positioning protrusions 2 significantly increase the contact friction between the insole and the sole body 1, like many "anti-slip studs", effectively suppressing the insole from moving backward in the horizontal plane;

[0032] The top surface protrusion 3 has several anti-slip protrusions 6 on the inner sidewall near the heel area.

[0033] The surrounding top protrusion 3 forms a physical limiting groove, and the protective wall 4 further restricts the displacement of the insole in the arch area, laterally constrains the insole, and greatly reduces the rotation, twisting and overall sliding of the insole to the rear.

[0034] The elastic element 5 continuously applies elastic compression to the side edge of the insole, providing a dynamic clamping force that further reinforces the fixation effect and ensures that the insole remains stable during children's vigorous activities such as running and jumping.

[0035] like Figure 1-4 As shown, the heel area of ​​the sole body 1 has a recessed U-shaped groove 7. The U-shaped groove 7 design in the heel area helps the insole form a U-shaped support under pressure, wrapping and stabilizing the heel, which is beneficial to the healthy development of children's foot bones and reduces the risk of problems such as pronation and supination.

[0036] The top arch area of ​​the sole body 1 has a positioning groove 8, and a shaped carbon plate 9 is fixed in the positioning groove 8. The shaped carbon plate 9 embedded in the arch greatly enhances the torsional stiffness of the midsole, providing strong support and protection for the developing arch, and effectively protecting the foot during exercise.

[0037] The sole body 1 includes an upper MD midsole 10 and a lower rubber outsole 11. The rubber outsole 11 is fixedly bonded to the bottom of the MD midsole 10, and the bottom of the rubber outsole has multiple grooves 12. The MD midsole 10 has the advantages of being lightweight, elastic, having a fine appearance, good softness, being easy to clean, and having good hardness, density, tensile strength, tear resistance, and elongation.

[0038] The design of the lower rubber outsole 11 and its bottom grooves 12 provides excellent wear resistance and all-around anti-slip performance, ensuring children's safety during activities.

[0039] The composite structure of MD and rubber achieves the best balance between lightweight and durability while ensuring functionality.

[0040] The top surface protrusion 3 has a buffer part 13 that extends obliquely upward and protrudes at the front edge. The buffer part 13 is positioned in front of the toes and can effectively prevent external objects from directly impacting the toes, thus providing cushioning protection for the toes. The MD midsole 10 is integrally injection molded with the positioning protrusion 2, the top surface protrusion 3, the protective wall 4, the buffer part 13, and the elastic element 5.

[0041] Finally, it should be noted that 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 preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A child's shoe sole for preventing the rearward movement of an insole, comprising a sole body (1), characterized in that, The sole body (1) has several positioning protrusions (2) for increasing friction and an integral top surface protrusion (3) on its surface. The top surface protrusion (3) is arranged around the top edge of the sole body (1) to form a limiting groove for accommodating the insole. The top surface protrusion (3) extends upward on both sides of the corresponding arch area to form a pair of symmetrical protective walls (4). The inner side of the top surface protrusion (3) is also provided with at least one elastic member (5) for providing elastic extrusion force to the side edge of the insole. The positioning protrusions (2) are wavy, and several of the positioning protrusions (2) are arrayed in the forefoot and heel areas.

2. The child's shoe sole to prevent the insole from moving backward according to claim 1, wherein The elastic element (5) is a strip-shaped elastic protrusion extending along the length of the sole body (1).

3. The child's shoe sole to prevent the insole from moving backward according to claim 1, wherein The top surface protrusion (3) has several anti-slip protrusions (6) on the inner sidewall near the heel area.

4. The child's shoe sole to prevent the insole from moving backward according to claim 3, wherein The top heel area of ​​the sole body (1) is provided with a recessed U-shaped groove (7).

5. A children's shoe sole for preventing insole slippage according to claim 1, characterized in that, The top arch area of ​​the sole body (1) has a positioning groove (8), and an irregular carbon plate (9) is fixed in the positioning groove (8).

6. The child's shoe sole to prevent the insole from moving backward according to claim 1, wherein The sole body (1) includes an upper MD midsole (10) and a lower rubber outsole (11), with the rubber outsole (11) fixedly bonded to the bottom of the MD midsole (10).

7. The child's shoe sole to prevent the insole from moving backward according to claim 6, wherein The bottom of the rubber outsole is provided with multiple grooves (12).

8. The child's shoe sole to prevent the insole from moving backward according to claim 6, wherein The top surface protrusion (3) has a buffer part (13) that extends obliquely upward and protrudes at the front edge.

9. The child's shoe sole to prevent the insole from moving backward according to claim 8, wherein, The MD insole (10) is integrally injection molded with the positioning protrusion (2), the top protrusion (3), the protective wall (4), the buffer part (13), and the elastic element (5).

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