Shoe sole

Abstract

The utility model belongs to the technical field of shoe manufacturing, and particularly relates to a sole. Comprising an inner sole, and further comprises a middle buffer layer which is arranged below the inner sole and comprises a supporting layer, a peripheral wall surrounding the edge of the supporting layer and extending upwards to the lower end face of the inner sole, and an elastic buffer element connected with the supporting layer; the external dispersion layer is arranged below the middle buffer layer and comprises a base layer fixedly connected with the supporting layer, a plurality of hollow dispersion bodies evenly arranged at the bottom of the base layer in the length direction of the shoe sole, and protection parts detachably connected with the hollow dispersion bodies; wherein each hollow dispersion body is provided with a through hollow cavity, and the protection part is used for preventing foreign matters from entering the hollow cavities. Through the composite structure design of the middle buffer layer and the outer dispersion layer, efficient buffer in the vertical direction and uniform dispersion of multi-directional pressure are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of footwear manufacturing, and particularly relates to a shoe sole. BACKGROUND

[0002] As a core functional component of footwear products, the structural design of the shoe sole directly affects the comfort, support and safety of the wearer. Whether it is daily walking, sports competition or outdoor trekking, the shoe sole needs to bear the functions of buffering body weight, dispersing ground reaction force, providing friction support and other multiple functions, while also needing to adapt to the diversified needs of wear resistance, slip resistance and impact resistance in different terrains.

[0003] However, traditional shoe soles generally have the problem of single pressure dispersion direction. For example, the midsole of most sports shoes only achieves vertical buffering through EVA foam or air cushions, but lacks an effective dispersion mechanism for horizontal shear force and lateral torsional force generated during walking or running, resulting in local stress concentration on the sole and easy fatigue or sports injuries after long-term use. In addition, the outsole of outdoor shoes usually adopts a solid rubber structure, which has a certain wear resistance, but the single vertical buffering design is difficult to cope with complex loads when facing sand, rough and uneven road surfaces, and the solid structure is easy to lose performance due to foreign matter embedding or long-term extrusion deformation. The limitations of such traditional design make it difficult for the shoe sole to meet the higher requirements of modern users for comfort and durability in a multi-directional stress environment. SUMMARY

[0004] The utility model discloses a composite structure design of the middle buffer layer and the outer dispersion layer, which realizes efficient buffering in the vertical direction and uniform dispersion of multi-directional pressure, thereby alleviating the problems mentioned in the background art.

[0005] The utility model discloses a shoe sole, which comprises an insole and further comprises:

[0006] The middle buffer layer is arranged below the insole and comprises a support layer, a peripheral wall extending upwards from the edge of the support layer to the lower end surface of the insole, and an elastic buffer element connected with the support layer.

[0007] The outer dispersion layer is arranged below the middle buffer layer and comprises a base layer fixedly connected with the support layer, a plurality of hollow dispersion bodies arranged uniformly on the bottom of the base layer in the length direction of the shoe sole, and a protective component detachably connected with the hollow dispersion bodies.

[0008] Each hollow dispersion body has a hollow cavity, and the protective component is used for preventing foreign matter from entering the hollow cavity.

[0009] The utility model further sets up, the elastic buffer element is a plurality of interval distribution elastic column, every elastic column lower extreme with support layer fixed connection, upper end with the lower end surface contact of inner bottom.

[0010] The utility model further sets up, the elastic column is hollow columnar structure.

[0011] The utility model further sets up, the peripheral wall with support layer integral molding, and the height of peripheral wall is less than the natural height of elastic buffer element.

[0012] The utility model further sets up, the protection component includes the bottom plate that covers the bottom and side of hollow disperser, and a plurality of set up on bottom plate and with the clamping convex part of hollow cavity opening clamping.

[0013] The utility model further sets up, the clamping convex part is equipped with the air hole that passes through, the air hole communicates hollow cavity with outside.

[0014] The utility model further sets up, hollow disperser with base layer adopts thermoplastic polyurethane elastomer and is integrally made.

[0015] The utility model further sets up, the bottom surface of protection component is equipped with antiskid line.

[0016] Through adopting above-mentioned technical scheme, the utility model can obtain beneficial effect is:

[0017] 1. through the elastic buffer element of middle buffer layer absorption vertical load, the hollow disperser of outer dispersing layer will along the length, width direction of insole dispersion remaining load, realize multidimensional pressure conduction, avoid plantar local stress concentration, improved the adaptability of insole to complex stress environment.

[0018] 2. protection component covers the bottom and side of hollow disperser, through clamping convex part and hollow cavity opening clamping, form closed barrier, effectively prevent sand and other foreign matters from entering hollow cavity, reduce structural damage risk, prolong the service life of insole.

[0019] 3. elastic buffer element adopts interval distribution hollow elastic column structure, through the impact force of elastic deformation absorption, reduce vibration transmission to plantar;Meanwhile, the air hole that clamping convex part sets up communicates hollow cavity with outside, balance insole internal air pressure, strengthen the air permeability, promote the wearing comfort. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the explosion map of the utility model;

[0021] Figure 2 It is the whole three-dimensional structure schematic view of the utility model;

[0022] Figure 3 is the sectional structure schematic view of the utility model Figure 2 ;

[0023] Figure 4 is the A part enlarged structure schematic view of the utility model Figure 3 .

[0024] The figure sign is: 1, inner bottom; 2, middle buffer layer; 20, support layer; 21, peripheral wall; 22, elastic buffer element; 220, elastic column; 3, outer dispersion layer; 30, base layer; 31, hollow dispersion body; 32, protection component; 320, bottom plate; 321, clamping convex part; 4, hollow cavity; 5, air hole. DETAILED DESCRIPTION

[0025] The utility model is further described in specific embodiments in combination with the drawings, and reference is made to Figures 1-4 :

[0026] Embodiment 1:

[0027] The embodiment provides a shoe sole, including inner bottom 1, still including:

[0028] Middle buffer layer 2 is located below the inner bottom 1, including support layer 20, peripheral wall 21 that extends upwards to the lower end surface of the inner bottom 1 around the edge of the support layer 20 and the elastic buffer element 22 connected with the support layer 20;

[0029] Outer dispersion layer 3 is located below the middle buffer layer 2, including base layer 30 fixedly connected with the support layer 20, a plurality of hollow dispersion bodies 31 evenly arranged on the bottom of the base layer 30 along the length direction of the shoe sole and protection component 32 detachably connected with the hollow dispersion body 31;

[0030] Wherein, each hollow dispersion body 31 has through hollow cavity 4, and the protection component 32 is used for preventing foreign matter from entering the hollow cavity 4.

[0031] The middle buffer layer 2 bears weight through the support layer 20, utilizes the elastic deformation of the elastic buffer element 22, efficiently absorbs the vertical impact force generated when walking and moving, reduces the influence of vibration on the foot bottom and joint;Peripheral wall 21 extends upwards around the edge of support layer 20 and is connected with the lower end surface of inner bottom 1, forms annular constraint structure, limits the excessive lateral deformation of elastic buffer element 22, ensures that the middle buffer layer 2 is stable in structure when being stressed, thereby providing comfortable and stable buffer support experience for the wearer.

[0032] The support layer 20 is the base load-bearing component of the middle cushioning layer 2, which is used to receive the body weight and ground reaction force transmitted from the insole 1 and transmit the force to the elastic cushioning elements 22, while providing a mounting base for the peripheral wall 21 and the elastic cushioning elements 22. The support layer 20 is usually a plate-shaped structure that matches the contour of the sole, located below the insole 1, at the bottom of the middle cushioning layer 2, and opposite to the base layer 30 of the outer dispersion layer 3. The support layer 20 and the base layer 30 can be fixedly connected by means of gluing or hot pressing, and the bottom of the support layer 20 and the peripheral wall 21 can be connected by means of one-piece molding or hot pressing, gluing, etc.

[0033] The peripheral wall 21 forms a ring-shaped constraint for the middle cushioning layer 2, limiting the excessive lateral deformation of the elastic cushioning elements 22 under force, and enhancing the structural stability of the middle cushioning layer 2. The peripheral wall 21 is in a ring-shaped thin-walled structure, vertically extending along the edge of the support layer 20 to the lower end surface of the insole 1.

[0034] The elastic cushioning elements 22 absorb the vertical impact force by their own elastic deformation, buffer the vibration and ground reaction force generated during walking and running of the human body, reduce the impact on the foot bottom and joints, and improve the wearing comfort.

[0035] The outer dispersion layer 3 disperses the received load in multiple directions through a unique structural design, uses the internal hollow cavity 4 to diffuse the vertical pressure laterally, and relies on the overall structure to resist the horizontal force to avoid local stress concentration; the protective component 32 on its surface not only prevents foreign matter from entering the internal cavity, but also ensures the stability of the core structure.

[0036] The base layer 30 is the base load-bearing structure of the outer dispersion layer 3, which is used to receive the load transmitted from the middle cushioning layer 2, and provides a mounting base for the hollow dispersion body 31 and the protective component 32; at the same time, it assists the hollow dispersion body 31 in pressure conduction and dispersion. The base layer 30 is usually a plate-shaped structure that matches the contour of the sole, located below the middle cushioning layer 2, at the top of the outer dispersion layer 3. The upper surface of the base layer 30 can be fixedly connected with the support layer 20 of the middle cushioning layer 2 by means of gluing, hot pressing or one-piece molding, and the lower surface of the base layer 30 and the hollow dispersion body 31 can be fixedly connected by means of one-piece molding or gluing, etc.

[0037] The hollow dispersion body 31 is the core component of the outer dispersion layer 3 to realize multidirectional pressure dispersion. Through the unique hollow cavity 4 structure, the vertical, horizontal and inclined loads transmitted from the middle buffer layer 2 are dispersed to avoid local stress concentration of the sole. The hollow dispersion body 31 is a plurality of independent columnar structures arranged uniformly on the bottom of the base layer 30 along the length direction of the sole. Each hollow dispersion body 31 has a hollow cavity 4 inside, and the cavity extends along the width direction of the sole. The outer shape of the hollow dispersion body 31 is generally a cylinder, and the shape of the hollow cavity 4 inside is matched with the outside.

[0038] The protection component 32 is used to prevent foreign matters such as sand and mud from entering the hollow cavity 4 of the hollow dispersion body 31, to avoid damage to the structure and ensure the normal play of the pressure dispersion function of the outer dispersion layer 3.

[0039] When the user wears the shoe with the sole and moves, the weight from the human body and the reaction force from the ground are first buffered by the middle buffer layer 2, and the remaining load is transmitted to the outer dispersion layer 3. At this time, the base layer 30 receives the force transmitted by the middle buffer layer 2 and distributes it to each hollow dispersion body 31. Since each hollow dispersion body 31 has a hollow cavity 4 extending along the width direction of the sole, when subjected to vertical pressure, the structure around the hollow cavity 4 will elastically deform slightly, converting the vertical force into a force diffusing along the transverse direction of the cavity, realizing dispersion of the vertical pressure; and when encountering horizontal force, the rigid structure of the hollow dispersion body 31 and the base layer 30 can resist deformation, dispersing the horizontal force to the entire sole to avoid excessive local stress. At the same time, the protection component 32 tightly covers the bottom and side of the hollow dispersion body 31 to prevent foreign matters from entering the hollow cavity 4 and affecting the structural performance, and its detachable design makes it convenient for the user to replace it when it is worn out, ensuring that the outer dispersion layer 3 always maintains good working condition.

[0040] The shoe with the sole with this design can be used in complex terrain scenes such as hiking, can cope with the impact of rugged roads and the invasion of gravel, can be used in sports and fitness scenes such as basketball and running, can help stabilize the grip and protect the joints during rapid movement, and can also be used for daily commuting in the city, meeting the comfort of daily walking and the safety requirements of wet and slippery roads.

[0041] Embodiment 2:

[0042] The embodiment provides a sole, in addition to the technical solutions of the above-mentioned embodiments, further having the following technical features.

[0043] The elastic buffering element 22 is a plurality of elastic columns 220 spaced apart, each of which is fixedly connected at the lower end to the support layer 20 and in contact at the upper end with the lower end surface of the insole 1.

[0044] The elastic column 220, as a basic unit of the elastic buffering element 22, achieves the buffering function through its elastic deformation. When a single elastic column 220 is under stress, it is compressed and deformed to absorb energy, and after the pressure disappears, it returns to its original shape to release energy. Multiple elastic columns 220 work together to provide continuous and stable buffering support for the foot bottom. The elastic column 220 is usually a solid or hollow columnar structure, and common shapes include cylinders and prisms. The elastic column 220 is uniformly and vertically arranged between the support layer 20 and the insole 1 along the length direction of the sole, and the lower end of the elastic column 220 can be fixedly connected to the support layer 20 by being integrally formed or by being glued, and the upper end is in contact with the insole 1.

[0045] When a person wearing shoes with the sole walks, runs or performs other activities, the body weight and ground reaction force are first transmitted to the elastic buffering element 22 through the insole 1. Since the lower end of the elastic column 220 is fixed to the support layer 20 and the upper end is in contact with the insole 1, under the action of vertical pressure, the elastic column 220 is elastically compressed and deformed. This deformation causes the elastic column 220 to convert external impact force into its own elastic potential energy, slowing down the transmission speed and intensity of the vibration to the foot bottom, thereby achieving the buffering effect.

[0046] When the footstep is lifted and the pressure is reduced, the elastic column 220 gradually returns to its original shape relying on the elastic recovery performance of its material, releasing the stored elastic potential energy. Multiple elastic columns 220 spaced apart simultaneously bear pressure and recover deformation in different areas, and under the synergistic effect, they achieve uniform dispersion and effective buffering of the pressure on the entire foot bottom, ensuring comfort and stability during walking or movement.

[0047] Embodiment 3:

[0048] The embodiment provides a sole, in addition to the technical solutions of the above-mentioned embodiments, further having the following technical features.

[0049] The elastic column 220 is a hollow columnar structure.

[0050] The elastic column 220 is designed as a hollow columnar structure in this embodiment, and the main purpose is to improve the overall performance by optimizing the internal space: the hollow structure can reduce the weight of a single elastic column 220, thereby reducing the mass of the entire sole and improving the wearing lightness; the cavity formed by the hollow structure can produce air compression or deformation buffering effect when under pressure, thereby enhancing the shock absorption capacity of the elastic column 220, especially when impacted, the deformation of the hollow part can further absorb energy and improve the buffering efficiency; at the same time, the hollow structure can reduce the amount of material used, thereby reducing the production cost under the premise of ensuring the structural strength; in addition, the hollow design can also provide a certain deformation redundancy space for the elastic column 220, so that it is not easy to be damaged due to excessive stress during repeated compression, thereby prolonging the service life, and the internal space of the hollow structure can be filled with other elastic materials or provided with auxiliary support structures according to the needs, thereby further optimizing the buffering performance and stability to adapt to the stress requirements in different scenarios.

[0051] Embodiment 4:

[0052] The shoe sole provided in this embodiment further has the following technical features in addition to the technical solutions of the above embodiments.

[0053] The peripheral wall 21 is integrally formed with the support layer 20, and the height of the peripheral wall 21 is less than the natural height of the elastic buffering element 22.

[0054] The peripheral wall 21 and the support layer 20 are designed to be integrally formed in this embodiment, and the height thereof is less than the natural height of the elastic buffering element 22, and the main purpose is to improve the performance of the sole by structural synergistic optimization: the integrally formed process can enhance the connection strength of the peripheral wall 21 and the support layer 20, avoid the falling or gap problems that may occur due to the split structure, ensure the stability of the lower end of the elastic buffering element 22, and at the same time simplify the production process and improve the processing efficiency; the height of the peripheral wall 21 is less than the natural height of the elastic buffering element 22, which can provide upward free compression space for the elastic column 220 when it is deformed under pressure, avoid mechanical limiting of the vertical deformation of the elastic column 220 by the peripheral wall 21, and ensure that the elastic column 220 can fully exert its elastic performance to efficiently absorb impact force, while the peripheral wall 21 forms a wrapping support on the outer side of the elastic column 220 to limit the structural instability caused by excessive radial deformation of the elastic column 220, so that the elastic column 220 can maintain a stable buffering track when compressed in the axial direction, thereby improving the anti-tilting ability and durability of the overall structure under the premise of ensuring the buffering effect, and adapting to the complex stress requirements in multiple scenarios such as walking and sports.

[0055] Embodiment 5:

[0056] The shoe sole provided in this embodiment further has the following technical features in addition to the technical solutions of the above embodiments.

[0057] The protection component 32 comprises a bottom plate 320 covering the bottom and sides of the hollow dispersion 31, and a plurality of clamping protrusions 321 provided on the bottom plate 320 and clamped with the openings of the hollow cavity 4.

[0058] The bottom plate 320 is used to close the bottom and sides of the hollow dispersion 31, forming a physical barrier to prevent foreign matter from entering the hollow cavity 4, while the bottom plate 320 is used to directly contact the ground. The bottom plate 320 is generally a flat plate structure covering the bottom of the hollow dispersion 31 and extending to the sides for wrapping. The bottom plate 320 can be detachably connected to the hollow dispersion 31 through the clamping protrusions 321.

[0059] The clamping protrusions 321 realize the detachable connection of the protection component 32 and the hollow dispersion 31, ensuring the stable installation of the protection component 32 while facilitating the disassembly and replacement. The clamping protrusions 321 are generally protruding columnar buckle structures with sizes matching the openings of the hollow cavity 4. The clamping protrusions 321 are distributed on the bottom plate 320 and correspond to the openings of the hollow cavity 4 one by one. The clamping protrusions 321 can be connected to the bottom plate 320 through buckling or integral molding, etc.

[0060] Embodiment 6:

[0061] The embodiment provides a sole, in addition to the technical solutions of the above-mentioned embodiments, further having the following technical features.

[0062] The clamping protrusions 321 are provided with through air holes 5, and the air holes 5 communicate the hollow cavity 4 with the outside.

[0063] The embodiment sets the through air holes 5 in the clamping protrusions 321 and communicates the hollow cavity 4 with the outside, the main purpose of which is to improve the product use experience and structural stability by optimizing the air flow performance: the air holes 5 can promote the circulation of air inside and outside the hollow cavity 4, avoid the rapid accumulation of air pressure in the cavity due to the compression and deformation of the elastic buffer element 22, thereby reducing the air resistance when the elastic column 220 reciprocates, enabling it to more flexibly absorb impact force through deformation, improving the buffering efficiency; at the same time, air circulation can reduce the heat generated by friction inside the cavity or accumulated over a long period of use, avoiding the impact of high temperature on the performance of the elastic material, prolonging the service life of the component; in addition, the air holes 5 can balance the air pressure inside and outside the cavity, prevent uneven stress on the clamping part of the protection component 32 and the hollow dispersion 31 due to air pressure difference, enhance the stability of the clamping structure, and avoid the problem of the protection component 32 falling off or deforming due to air pressure; in the wearing scene, the air holes 5 also help to exhaust the moisture inside the sole, improve the wearing comfort, especially suitable for the heat dissipation demand of the feet during sports or long walks, reduce the feeling of stuffiness, at the same time, reduce the risk of bacterial growth, and improve the sanitary performance.

[0064] Embodiment 7:

[0065] The shoe sole provided in the embodiment has the following technical features in addition to the technical solutions of the above embodiments.

[0066] The hollow dispersion body 31 and the base layer 30 are integrally made of thermoplastic polyurethane elastomer.

[0067] The hollow dispersion body 31 and the base layer 30 are integrally made of thermoplastic polyurethane elastomer, and the main purpose is to improve the overall performance through the synergistic optimization of material properties and molding process: thermoplastic polyurethane elastomer has high elasticity, wear resistance and tear resistance, and its integrated molding process can eliminate the connection gap of the traditional split structure, enhance the interfacial bonding strength of the hollow dispersion body 31 and the base layer 30, avoid delamination or fracture caused by uneven stress, ensure the continuity of force transmission of the elastic buffer element 22 during compression deformation, and improve the stability of the shoe sole structure; the plasticity of thermoplastic polyurethane elastomer enables it to accurately form complex hollow dispersion body 31 structure during integrated molding, meeting different buffering performance requirements, while simplifying the production process, reducing assembly procedures and reducing production costs; in addition, the high resilience of thermoplastic polyurethane elastomer can give the shoe sole excellent energy feedback effect, and during walking or exercise, the hollow dispersion body 31 and the base layer 30 as a unified elastic whole can more efficiently absorb impact force through deformation and release elastic energy, improving the comfort and exercise performance of the wearer, and the weather resistance and chemical resistance of thermoplastic polyurethane elastomer can prolong the service life of the shoe sole in various environments, meeting the long-term needs of different use scenarios.

[0068] Embodiment 8:

[0069] The shoe sole provided in the embodiment has the following technical features in addition to the technical solutions of the above embodiments.

[0070] The bottom surface of the protective component 32 is provided with anti-skid lines.

[0071] The embodiment sets anti-skid lines on the bottom surface of the protective component 32, and the main purpose is to increase the friction coefficient between the shoe sole and the ground, and improve the safety and stability during walking and exercise. The anti-skid lines can break the water film between the shoe sole and the ground, preventing slipping due to the lubricating effect of water when walking on wet and slippery roads; the convex and concave structure can be embedded into the gap of rough ground, enhancing the grip, so that the shoe sole is not easy to move on complex ground such as mud and stones; at the same time, the multidirectional resistance surface formed by the lines can effectively cope with the multidirectional friction force generated by different actions such as walking, running and turning, reducing the risk of slipping and sprain, and providing reliable foot support for the wearer in various scenarios.

[0072] The above embodiment is only a preferred embodiment of the utility model, and does not limit the protection scope of the utility model, so that: all equivalent changes made according to the structure, shape, principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A shoe sole comprising an insole (1), characterized in that , also include: The middle buffer layer (2) is arranged below the inner bottom (1), and includes a support layer (20), a peripheral wall (21) extending upwards from the edge of the support layer (20) to the lower end surface of the inner bottom (1), and an elastic buffer element (22) connected with the support layer (20); The outer dispersion layer (3) is arranged below the middle buffer layer (2), and includes a base layer (30) fixedly connected with the support layer (20), a plurality of hollow dispersants (31) arranged uniformly along the length direction of the sole on the bottom of the base layer (30), and a protective component (32) detachably connected with the hollow dispersant (31); Wherein, each hollow dispersant (31) has a hollow cavity (4) penetrating therethrough, and the protective component (32) is used for preventing foreign matters from entering the hollow cavity (4).

2. A sole according to claim 1, wherein The elastic buffer element (22) is a plurality of elastic columns (220) distributed at intervals, and the lower end of each elastic column (220) is fixedly connected with the support layer (20), and the upper end is in contact with the lower end surface of the inner bottom (1).

3. A sole according to claim 2, wherein The elastic column (220) is a hollow columnar structure.

4. The sole of claim 1, wherein The peripheral wall (21) is integrally formed with the support layer (20), and the height of the peripheral wall (21) is less than the natural height of the elastic buffer element (22).

5. The sole of claim 1, wherein The protective component (32) includes a bottom plate (320) covering the bottom and side surface of the hollow dispersant (31), and a plurality of clamping convex portions (321) arranged on the bottom plate (320) and clamped with the opening of the hollow cavity (4).

6. A sole according to claim 5, wherein The clamping convex portion (321) is provided with a penetrating air hole (5), and the air hole (5) communicates the hollow cavity (4) with the outside.

7. The sole of claim 1, wherein The hollow dispersant (31) and the base layer (30) are integrally made of thermoplastic polyurethane elastomer.

8. The sole of claim 1, wherein The bottom surface of the protective component (32) is provided with anti-skid lines.

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