A highly flexible anti-slip sole

By integrating the EVA foam insole with the rubber bottom layer, the problem of increased weight in existing anti-slip soles is solved, achieving improved resilience, flexibility, and anti-slip performance, thus enhancing wearing comfort and stability.

CN224268443UActive Publication Date: 2026-05-26MINGZHI SPORTS GOODS (CHINA) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MINGZHI SPORTS GOODS (CHINA) CO LTD
Filing Date
2025-07-31
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing anti-slip shoe soles use a large amount of rubber material, which increases the weight of the sole and reduces its resilience and wearing comfort.

Method used

The design incorporates an EVA foam insole and a rubber underlayer. The EVA foam insole provides high resilience and flexibility, while the rubber underlayer enhances friction and anti-slip performance, reducing the overall weight of the sole.

Benefits of technology

It improves the flexibility and anti-slip performance of the sole, while reducing the weight of the sole, thus improving wearing comfort and stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a highly flexible and non-slip shoe sole, comprising an outsole layer, a midsole layer bonded to the top surface of the outsole layer, and an EVA foam insole. A border strip is connected around the top surface of the EVA foam insole, and an embedding groove is formed on the bottom surface of the EVA foam insole, into which a rubber sublayer is embedded. This utility model provides high rebound and flexibility to the shoe through the EVA foam material and structure of the EVA foam insole itself. The rubber sublayer further enhances the overall flexibility of the shoe sole by embedding and fixing the EVA foam insole to the bottom surface. Furthermore, the positive and negative anti-slip patterns connected to the bottom surface of the rubber sublayer, through their mutually inclined angle design, provide stable friction during walking. The EVA foam insole is also lighter, and the embedded rubber sublayer effectively reduces the overall weight of the shoe sole, improving wearing comfort.
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Description

Technical Field

[0001] This utility model relates to the field of shoe sole technology, specifically to a highly flexible and non-slip shoe sole. Background Technology

[0002] Shoes have a long history of development. Around 5,000 years ago, during the Yangshao culture period, the earliest shoes, made of sewn animal hides, appeared. Shoes are a tool for protecting people's feet from injury. To overcome special circumstances and prevent foot discomfort or injury, people invented fur shoes. Shoes have evolved to their current form, with various styles and functions readily available. Among all the components of a shoe, the sole is particularly important. The construction of a sole is quite complex, broadly speaking, including all the materials that make up the bottom, such as the outsole, midsole, and heel. Furthermore, the midsole must work in conjunction with the sole to provide braking during foot transitions to prevent slipping and facilitate stopping.

[0003] Existing technology, such as the patent with publication number CN219628939U, discloses a flexible and non-slip shoe sole, including a shoe sole mechanism. The shoe sole mechanism includes a shoe sole body. The top of the shoe sole body has anti-slip patterns. The shoe sole body includes a strength layer and a comfort layer. The strength layer is located on top of the comfort layer. The strength layer includes an abrasion-resistant coating, an abrasion-resistant layer, a flexible layer, and a soft layer. The abrasion-resistant coating is located on top of the abrasion-resistant layer, and the abrasion-resistant layer is located on top of the flexible layer.

[0004] While the aforementioned existing technologies have significant beneficial effects, they still have shortcomings:

[0005] The aforementioned anti-slip sole ensures the anti-slip properties of the sole structure by creating anti-slip patterns, and ensures the flexibility and wear resistance of the sole structure by setting up a strength layer of polyvinylidene fluoride rubber and polyester rubber. However, due to the use of a large amount of rubber material, although the sole has anti-slip properties and increases its own flexibility and strength, it also increases the weight of the sole. This makes it difficult to guarantee the rebound of the overall sole when it is used and worn. At the same time, the higher weight also reduces the wearing comfort. Therefore, an anti-slip sole with strong grip and embedded EVA pad is proposed. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a highly flexible and non-slip shoe sole. The sole is fixed to the rubber bottom layer by embedding grooves on the bottom surface of the EVA foam pad. The EVA foam material and structure of the EVA foam pad itself provide high rebound and flexibility for the shoe. The rubber bottom layer further enhances the overall flexibility of the shoe sole by embedding and fixing the bottom surface of the EVA foam pad, effectively reducing the overall weight of the shoe sole and improving wearing comfort.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a highly flexible anti-slip shoe sole, comprising an outsole pad layer, a midsole pad layer bonded to the top surface of the outsole pad layer, the outsole pad layer comprising an EVA foam insole, a frame strip connected around the top surface of the EVA foam insole, an embedding groove formed on the bottom surface of the EVA foam insole, a rubber base layer embedded in the bottom surface of the embedding groove, a connecting block fixed to the top surface of the rubber base layer, side stripes distributed on both sides of the bottom surface of the rubber base layer, a positive anti-slip pattern fixed on one side of the bottom surface of the rubber base layer, a reverse anti-slip pattern fixed on the other side of the bottom surface of the rubber base layer, and an inclined frame fixed to the inner wall of the positive and reverse anti-slip patterns.

[0008] Preferably, the rubber bottom layer is embedded and fixed to the bottom surface of the EVA foam pad along the embedding groove, and the frame strip is evenly distributed along the root of the top surface of the EVA foam pad.

[0009] Preferably, the connecting blocks are arranged at equal intervals along the top surface of the rubber substrate, and the rubber substrate is fitted into the embedding groove through the connecting blocks.

[0010] Preferably, the positive anti-slip texture, the reverse anti-slip texture, and the side stripes are fixedly connected to the bottom surface of the rubber substrate, and the side stripes are symmetrically distributed along both sides of the bottom surface of the rubber substrate.

[0011] Preferably, the positive and negative anti-slip patterns are fixedly connected to the bottom surface of the rubber base layer with the inclined frame, and the positive and negative anti-slip patterns are symmetrically distributed along the central axis of the bottom surface of the rubber base layer.

[0012] Preferably, the insole padding layer includes an insole, the insole has stitching lines evenly threaded around its perimeter, a memory foam layer is attached to the bottom surface of the insole, and a fleece layer is attached to the bottom surface of the memory foam layer.

[0013] Preferably, the midsole is sewn to the memory foam layer and the fleece layer by stitching, and the memory foam layer is evenly distributed between the midsole and the fleece layer.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention utilizes an embedded groove on the bottom surface of an EVA foam insole to embed and bond it with a rubber sublayer. The EVA foam material and structure of the insole itself provide high rebound and flexibility for the shoe. The embedded rubber sublayer further enhances the overall flexibility of the sole. The positive and negative anti-slip patterns connected to the bottom surface of the rubber sublayer, through their mutually inclined angle design, provide stable friction during walking, improving anti-slip performance. The inclined frame of the anti-slip pattern supports and maintains the stability of the anti-slip structure. Furthermore, the EVA foam insole is lighter, and the embedded rubber sublayer effectively reduces the overall weight of the sole, improving wearing comfort.

[0016] When the rubber bottom layer of this anti-slip sole is embedded in the groove opened on the bottom surface of the EVA foam pad, the connecting blocks arranged on the top surface can maintain the stability of the local structure after embedding, thereby reducing the structural instability of the bottom rubber bottom layer during use and improving stability.

[0017] The midsole of this non-slip shoe sole is stitched together with the memory foam layer and the fleece layer to form an integrated pad. The memory foam layer inside provides high resilience, directly improving the flexibility of the foot feel and relieving the pressure of the hard sole.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the base pad layer of this utility model;

[0020] Figure 2 This is a schematic diagram of the bottom surface structure of the base pad layer of this utility model;

[0021] Figure 3 This is a partial side view of the rubber bottom layer structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the bottom pad layer in this utility model.

[0023] In the diagram: 1. Outsole padding layer; 101. EVA foam padding; 102. Frame strip; 103. Embedded groove; 104. Rubber bottom layer; 105. Connecting block; 106. Side stripes; 107. Positive anti-slip texture; 108. Reverse anti-slip texture; 109. Tilt frame; 2. Midsole padding layer; 201. Midsole; 202. Stitching line; 203. Memory foam layer; 204. Fleece layer. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 This embodiment of a highly flexible anti-slip shoe sole includes an outsole pad 1, a midsole pad 2 bonded to the top surface of the outsole pad 1, an EVA foam pad 101, a frame strip 102 connected around the top surface of the EVA foam pad 101, an embedding groove 103 formed on the bottom surface of the EVA foam pad 101, a rubber bottom layer 104 embedded in the bottom surface of the embedding groove 103, a connecting block 105 fixed to the top surface of the rubber bottom layer 104, side stripes 106 distributed on both sides of the bottom surface of the rubber bottom layer 104, a positive anti-slip pattern 107 fixed to one side of the bottom surface of the rubber bottom layer 104, a reverse anti-slip pattern 108 fixed to the other side of the bottom surface of the rubber bottom layer 104, and a tilting frame 109 fixed to the inner walls of the positive anti-slip pattern 107 and the reverse anti-slip pattern 108.

[0026] like Figure 1-4As shown, the sole of this invention is similar to existing sole structures, such as the flexible and non-slip sole disclosed in CN219628939U. The main improvement of this invention lies in the embedding groove 103 on the bottom surface of the EVA foam pad 101, which is embedded and bonded to the rubber bottom layer 104. The EVA foam pad 101 itself provides high rebound and flexibility to the shoe through its EVA foam material and structure. Furthermore, the rubber bottom layer 104, which is embedded and fixed to the bottom surface of the EVA foam pad 101, further enhances the overall flexibility of the sole. This invention effectively reduces the overall weight of the shoe sole and improves wearing comfort. Both the EVA foam insole 101 and the memory foam layer 203 in this invention are existing technologies. When using this anti-slip sole, the user first sews the midsole layer 2 to the suitable shoe. Then, the EVA foam insole 101 is attached to the edge of the shoe bottom through the surrounding frame strips 102 and glued together. Production is then complete, and the shoe can be put into use. The bottom surface of the EVA foam insole 101 has an embedding groove 103, and the insole is embedded and glued into the bottom surface of the embedding groove 103. The shoe features a rubber bottom layer 104. During use, the user can utilize the EVA foam insole 101 for rebound. When the foot is subjected to pressure and walking, the rubber bottom layer 104 and the striped structure on the underside of the EVA foam insole 101 create friction and provide anti-slip properties. The sole is fixed to the rubber bottom layer 104 by embedding grooves 103 on the underside of the EVA foam insole 101. The EVA foam material and structure of the insole 101 itself provide the shoe with high rebound and flexibility. The bottom surface of the A foam insole 101 further enhances the overall flexibility of the sole through the embedded and fixed rubber bottom layer 104. The positive anti-slip texture 107 and the reverse anti-slip texture 108 connected to the bottom surface of the rubber bottom layer 104 provide stable friction during walking through the angle design of mutual inclination, thereby improving anti-slip performance. The anti-slip texture is connected and supported by the inclined frame 109 to maintain the stability of the anti-slip structure. In addition, the EVA foam insole 101 is lighter and adopts the method of embedding the rubber bottom layer 104, which effectively reduces the weight of the overall sole and improves wearing comfort.

[0027] When the rubber bottom layer 104 is embedded in the embedding groove 103 on the bottom surface of the EVA foam pad 101, the connecting blocks 105 arranged on the top surface can maintain the stability of the local structure after embedding, thereby reducing the structural instability of the bottom rubber bottom layer 104 during use and improving stability.

[0028] like Figure 4As shown, the midsole pad 2 includes a midsole 201, with stitching lines 202 evenly threaded around the perimeter of the midsole 201. A memory foam layer 203 is attached to the bottom surface of the midsole 201, and a fleece layer 204 is attached to the bottom surface of the memory foam layer 203. The midsole 201 of the shoe sole is stitched together with the memory foam layer 203 and the fleece layer 204 by the stitching lines 202 to form an integrated pad. The memory foam layer 203 filled in the internal interlayer provides high resilience, directly improving the foot feel and flexibility, and relieving the pressure of the hard sole.

[0029] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A highly flexible, non-slip shoe sole, comprising an outsole pad (1), characterized in that, The top surface of the main bottom pad (1) is bonded with the middle bottom pad (2). The main bottom pad (1) includes an EVA foam bottom pad (101). The top surface of the EVA foam bottom pad (101) is connected with a frame strip (102). The bottom surface of the EVA foam bottom pad (101) is provided with an embedding groove (103). The bottom surface of the embedding groove (103) is embedded with a rubber bottom layer (104). The top surface of the rubber bottom layer (104) is fixed with a connecting block (105). The bottom surfaces of the rubber bottom layer (104) are distributed with side stripes (106). One side of the bottom surface of the rubber bottom layer (104) is fixed with a positive anti-slip pattern (107). The other side of the bottom surface of the rubber bottom layer (104) is fixed with a reverse anti-slip pattern (108). The inner walls of the positive anti-slip pattern (107) and the reverse anti-slip pattern (108) are fixed with an inclined frame (109).

2. The highly flexible anti-slip shoe sole according to claim 1, characterized in that, The rubber bottom layer (104) is embedded and fixed to the bottom surface of the EVA foam pad (101) along the embedding groove (103), and the frame strip (102) is evenly distributed along the root of the top surface of the EVA foam pad (101).

3. The highly flexible anti-slip shoe sole according to claim 1, characterized in that, The connecting blocks (105) are arranged at equal intervals along the top surface of the rubber bottom layer (104), and the rubber bottom layer (104) is fitted into the embedding groove (103) through the connecting blocks (105).

4. The highly flexible anti-slip shoe sole according to claim 1, characterized in that, The positive anti-slip texture (107), the reverse anti-slip texture (108), and the side stripes (106) are fixedly connected to the bottom surface of the rubber base (104), and the side stripes (106) are symmetrically distributed along both sides of the bottom surface of the rubber base (104).

5. The highly flexible anti-slip shoe sole according to claim 1, characterized in that, The positive anti-slip texture (107) and the negative anti-slip texture (108) are fixedly connected to the bottom surface of the rubber base layer (104) with the tilting frame (109), and the positive anti-slip texture (107) and the negative anti-slip texture (108) are symmetrically distributed along the central axis of the bottom surface of the rubber base layer (104).

6. The highly flexible anti-slip shoe sole according to claim 1, characterized in that, The midsole padding layer (2) includes a midsole (201), with stitching lines (202) evenly threaded around the midsole (201), a memory foam layer (203) attached to the bottom surface of the midsole (201), and a fleece layer (204) attached to the bottom surface of the memory foam layer (203).

7. The highly flexible anti-slip shoe sole according to claim 6, characterized in that, The midsole (201) is stitched and fixed to the memory foam layer (203) and the fleece layer (204) by a suture (202), and the memory foam layer (203) is evenly distributed between the midsole (201) and the fleece layer (204).