All-terrain anti-skid shoe sole

Abstract

The invention discloses an all-terrain anti-skid shoe sole which comprises a shoe sole body and at least one set of overturning components installed on the shoe sole body in an overturning mode, and the overturning components can overturn relative to the shoe sole body so as to adapt to different terrains. The overturning component comprises a supporting frame, protrusion matching parts and key bodies, the protrusion matching parts are arranged on the two sides of the supporting frame and used for achieving running fit, and the key bodies are in running fit with the protrusion matching parts. The overturning component which can be installed in an overturning mode is arranged on the shoe sole, so that the supporting frame can be rapidly overturned relative to the shoe sole; therefore, the shoe sole can rapidly adapt to various complex terrains such as ice and snow, mud and rocks, and potential safety hazards caused by poor terrain adaptability of an existing fixed type anti-skid shoe sole are avoided. And the technical contradictions of inconvenience in operation, insufficient durability and poor mechanism stability caused by structural homogenization of the existing reversible shoe sole are overcome.

Description

Technical Field

[0001] This invention is an all-terrain anti-slip shoe sole, belonging to the field of shoe sole technology. Background Technology

[0002] All-terrain non-slip soles are widely used in footwear products for outdoor sports, mountaineering and exploration, walking on icy and snowy roads, and in complex terrain environments such as mud and slippery surfaces. Their core function is to provide users with reliable and continuous non-slip grip performance under different ground conditions to ensure walking safety and comfort.

[0003] In actual outdoor activities, the terrain environment often changes rapidly, such as switching from hard ice and snow to soft mud, or from flat rocks to gravel slopes. This places completely different mechanical requirements on the grip structure of the shoe sole: ice and snow requires sharp, deep teeth to penetrate the ice and increase the biting force, while mud or rocky ground requires a wide and gentle contact surface to prevent sinking or lateral slippage.

[0004] In existing technologies, the anti-slip structure of shoe soles typically employs a fixed anti-slip tooth or tread design. While this fixed structure is simple to manufacture, its physical form is immutable, and the sole cannot adapt to changes in terrain. When users move from icy and snowy environments to muddy ones, the fixed deep teeth can easily become stuck in the mud, or on rocky surfaces, the small contact area can lead to excessive pressure and accelerated wear. Conversely, if a gentle tread pattern is used, it cannot provide sufficient grip on icy and snowy surfaces. This fundamental flaw of insufficient grip when terrain changes directly poses a safety hazard to users in complex outdoor environments.

[0005] To address the poor adaptability of fixed structures, some shoe sole designs with flip-up or replaceable anti-slip components have gradually emerged in the prior art. For example, Korean Patent Publication KR20150081862A discloses an anti-slip sole that forms insertion grooves in the forefoot and heel of the urethane body. Anti-slip sheets made of rubber are fixed within the grooves using a thermoplastic adhesive. A rubber fastening platform with a hinge groove is then fixed to the anti-slip sheet using the same thermoplastic adhesive. A rotating piece with multiple unidirectional protruding spikes is hinged to the fastening platform. Rotation at the hinge center allows the spikes to be hidden in the grooves or exposed to achieve anti-slip. While this structure achieves the switching between spike storage and use, it has significant drawbacks: the hinge structure is a simple open groove combined with an insertion hinge, lacking axial locking and stress dispersion mechanisms, making it prone to loosening, jamming, and wobbling of the rotating piece; furthermore, the spikes are a single-height protrusion structure, providing only one gripping direction in complex terrains such as mud and rocks, failing to provide multi-directional biting force, and thus its adaptability remains insufficient.

[0006] Furthermore, Chinese invention patent application CN201880010502 discloses an improved sole with a flip-over anti-slip device. This design anchors a cube to the sole using a mushroom-shaped connecting element, and uses an elliptical pin to force the support element to switch between an extended and retracted position, achieving locking through a snap-fit ​​between teeth and the bottom cutter. While this design addresses the issues of fixing and preventing loss of the support element to some extent, it still has shortcomings. It relies on the elastic snap-fit ​​of the mushroom-shaped element for fixation, and long-term use may lead to anchor loosening due to elastic fatigue. Although the elliptical design of the flip pin eliminates the middle position, the flipping torque is relatively large, making operation inconvenient in low temperatures or when wearing gloves. In addition, the support element itself lacks a zoned rigidity-flexibility design, making it difficult to balance the flexibility of the flipping operation with the rigidity for walking load-bearing, and the structure is prone to clogging due to mud, affecting the locking reliability.

[0007] Our company's independently developed product is a utility model patent (authorization number CN223452862U) for an anti-slip steel claw structure for all-terrain shoe soles and the resulting all-terrain shoe sole. This design features high-strength, retractable forefoot and heel steel claws at the forefoot and heel of the all-terrain shoe sole, respectively. The forefoot claw consists of first and second anti-slip components forming anti-slip holes, while the heel claw consists of a third anti-slip component. Both claws engage with the hinge seat and slot in the sole assembly groove via hinge slots, crossbeams, hinge connecting blocks, and locking blocks. This allows the anti-slip studs to be stored in the assembly groove during normal walking and to flip over to expose the first / second anti-slip studs for strong grip on complex terrain. This structure effectively solves the inconvenience of carrying two pairs of shoes with different soles in activities such as mountaineering, and the flipping of the steel claws facilitates terrain switching.

[0008] However, this generation of products lacks a zoned design for flexible areas during flipping operations and rigid areas for bearing weight during walking. This makes the flipping components prone to fatigue deformation, plastic bending, or even breakage during repeated high-frequency use, resulting in insufficient durability. The anti-slip studs are simple stud-like structures with a single gripping direction, which is not sufficiently adaptable to different scenarios such as ice and snow penetration, mud surroundings, and lateral support from rocks. The hinges use a basic pivot-block combination structure, which lacks a precise axial locking and stress dispersion mechanism. After long-term use, it is prone to axial movement, shaking and abnormal noise, or even accidental flipping, resulting in poor mechanism stability.

[0009] First, existing flip-up components typically employ a homogeneous material structure and thickness distribution. This structural uniformity prevents the flip-up components from simultaneously meeting the requirements for flexible deformation during flip-up operations and rigid support during weight-bearing walking. Due to the lack of targeted regional stiffness design, increasing overall rigidity to prevent breakage during walking directly leads to excessive flip-up resistance. This makes it difficult for users to perform the flip-up operation by hand in outdoor environments (especially in low temperatures or when wearing thick gloves), often requiring the use of specialized tools, severely reducing the responsiveness to terrain adaptation. Conversely, reducing overall thickness or using excessively soft materials to decrease flip-up resistance can cause the anti-slip serrations to undergo plastic deformation or even breakage due to insufficient rigidity when subjected to ground impacts, significantly shortening the lifespan of the sole.

[0010] Secondly, the excessive operating force or structural deformation caused by the aforementioned contradiction between rigidity and flexibility will further exacerbate the wear of the flipping mechanism. Existing flipping mechanisms mostly use simple shaft-hole fits or snap-fit ​​connections, lacking effective axial locking and stress dispersion mechanisms. When the user applies additional external force due to excessive flipping resistance, or when insufficient structural rigidity causes walking impact to be directly transmitted to the pivot, the rotating fit is prone to fatigue and loosening, leading to axial movement, shaking, abnormal noise, or even accidental flipping of the flipping component during walking. This loss of mechanism stability not only disrupts the consistent grip of the sole but may also cause the user to fall due to component detachment or jamming. Summary of the Invention

[0011] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an all-terrain anti-slip shoe sole to solve the problems in the existing technology.

[0012] To achieve the above objectives, the present invention is implemented through the following technical solution: An all-terrain anti-slip sole includes a sole and at least one set of rotatable components mounted on the sole, the rotatable components being able to rotate relative to the sole to adapt to different terrains; The flipping component includes a support frame, protruding mating parts disposed on both sides of the support frame for rotational engagement, and a key body that can rotatably engage with the protruding mating parts. The key body is fixedly embedded in the sole, thereby enabling the support frame to achieve controllable flipping relative to the sole through the engagement of the protruding mating parts and the key body. The edges of the support frame are provided with friction parts to increase hand friction during flipping operations; One side of the support frame is provided with several anti-slip tooth groups. Each anti-slip tooth group includes multiple protrusions of varying heights. Each protrusion consists of at least one long main tooth and multiple short main teeth arranged in a staggered manner to provide multi-directional anti-slip grip when in contact with the ground. An elastic yielding portion is provided in the support frame between adjacent anti-slip tooth groups to provide flexible deformation for easy operation when the support frame is flipped. A rigid reinforcement section is formed below the anti-slip tooth assembly to improve the structural strength and durability of the anti-slip tooth assembly.

[0013] As a further improvement, the friction part includes a plurality of raised stripes disposed on the edges of both sides of the support frame, the raised stripes extending in the flipping direction to enhance the friction force during operation.

[0014] As a further improvement, the protruding mating part includes a rod body disposed on the outer side of the support frame and an arc surface member or inclined surface member disposed at the end of the rod body. The arc surface member is a hemisphere or a cylinder, and the inclined surface member is a cone or a frustum. A gasket disposed on one side of the support frame and fitted onto the outer annular surface of the rod; The key body includes a mating groove that matches the shape of the rod body and the arc-shaped or inclined member to achieve smooth rotation of the support frame.

[0015] The mating groove includes a first groove area that matches the rod body and a second groove area that matches the arc surface member or inclined surface member. The first groove area is a cylindrical groove, and the second groove area has an opening width smaller than the width of the arc surface member or inclined surface member, and its internal width is larger than the width of the arc surface member or inclined surface member.

[0016] As a further improvement, the key body also includes an extension disposed on its outer side, the upper surface of the extension being a horizontal portion and the lower surface of the extension being an inclined portion; The sole has an installation groove and a side groove corresponding to the position of the key body. The inclined part is used to guide the extension body into the side groove during installation, and the horizontal part is used to limit and fix the key body in the installation groove.

[0017] As a further improvement, the support frame is provided with several through holes; The elastic yielding portion is the area around the through hole where the anti-slip teeth are not provided, and the rigidity reinforcing portion is the area around the through hole where the anti-slip teeth are provided.

[0018] As a further improvement, the protrusion includes a long main tooth located in the middle and short main teeth disposed on both sides of the long main tooth. The long main tooth bends from the middle toward both sides to form a first preset angle, and a second preset angle is formed between the long main tooth and the short main teeth to form an engagement portion when in contact with the ground.

[0019] As a further improvement, the adjacent anti-slip tooth groups cooperate with the through holes to form a biting space for enhanced grip.

[0020] As a further improvement, the top of the long main tooth is provided with a first contact portion, and the top of the short main tooth is provided with a second contact portion, wherein the contact area of ​​the first contact portion is greater than the contact area of ​​the second contact portion.

[0021] As a further improvement, at least two sets of short main teeth are provided on both sides of the long main tooth, and the length of the short main teeth farther away from the long main tooth is less than the length of the short main teeth closer to the long main tooth.

[0022] As a further improvement, the anti-slip tooth assembly also includes a mounting portion for fixing it to the support frame. The mounting portion consists of several slots located below the anti-slip tooth assembly, and is fixed by integral injection molding with the support frame through the slots. As a further improvement, the support frame is configured as a gradient composite structure, with a high-modulus carbon fiber reinforcing plate embedded inside and an elastic polymer layer covering the outside. The elastic polymer layer corresponds to the elastic yielding portion, and the high-modulus carbon fiber reinforcing plate is distributed correspondingly in the rigid reinforcing portion. The surface of the protrusion is provided with micro-serrations.

[0023] As a further improvement, the inclination angle of the tooth tip axis of the protrusion relative to the vertical plane of the support frame is set to 16° to 25°, and the edge of the protrusion is provided with micro-serrations with a depth of 0.8mm to 1.2mm.

[0024] As a further improvement, the two protruding mating parts are provided on the outer side of the support frame.

[0025] As a further improvement, the two protruding mating parts are disposed on the inner side of the support frame.

[0026] As a further improvement, the key body also includes at least one set of support rods disposed below, and a locking part disposed below the support rods. The lower surface of the locking part is a convex arc structure, and the diameter of the locking part is greater than the diameter of the support rods. The sole is provided with locking grooves corresponding to the locking part and the support rods, and the locking part and the support rods are fixed by being inserted into the locking grooves.

[0027] As a further improvement, two sets of support rods, locking parts, and locking grooves are provided below the key body. An extension is also provided on the outer side of the key body.

[0028] Beneficial effects 1. This invention provides a flip-up component that can be installed on the sole of the shoe, allowing the support frame to flip rapidly relative to the sole so that the anti-slip teeth or smooth surface can selectively contact the ground. This enables the sole to quickly adapt to various complex terrains such as ice, snow, mud, and rocks, solving the safety hazard caused by insufficient grip when the terrain changes in existing fixed anti-slip structures, and improving the safety and comfort of users in outdoor activities.

[0029] 2. By setting friction parts on the edge of the support frame, the grip force of the hand is increased during the flipping operation, so that the user can easily complete the flipping action without special tools. It can be operated reliably even in wet, low temperature or gloved environments, thus overcoming the shortcomings of existing flip-out soles that are difficult to operate or require auxiliary tools, and significantly improving the convenience and quick response capability in actual use.

[0030] 3. By setting an elastic yielding part in the support frame area between adjacent anti-slip tooth groups, and forming a rigid reinforcement part in the connection area below the anti-slip tooth groups, the elastic yielding part undergoes flexible deformation during flipping to reduce the required operating force, while the rigid reinforcement part effectively disperses the impact force of the ground to prevent the protrusion from deforming or breaking. This significantly improves the structural durability and fatigue resistance of the flipping component while ensuring easy flipping, thus extending the overall service life of the sole.

[0031] 4. The anti-slip teeth assembly uses multiple staggered protrusions, with the long main teeth bending from the middle to both sides and forming a preset angle with the short main teeth on both sides. This allows the protrusions to form a multi-directional engagement part when in contact with the ground, enabling them to penetrate on ice, surround in mud, and provide lateral support on rocks. This provides excellent all-directional anti-slip grip and significantly improves stability on wet or uneven surfaces compared to existing single-height or upright tooth structures.

[0032] 5. The interlocking space is formed by the interaction between the adjacent anti-slip teeth and the through holes on the support frame. This allows soft ground material to be squeezed into the space and compressed by the surrounding protrusions to form additional mechanical locking. At the same time, it facilitates the discharge of hard ground debris and keeps the tooth tips clean, thereby enhancing the continuous grip and self-cleaning function of the anti-slip teeth and further improving the reliability and adaptability of the sole in complex environments.

[0033] 6. The protruding mating part adopts a combination structure of rod body and end arc surface component or inclined surface component, which is precisely fitted with the mating groove of key body, so that the flipping part rotates smoothly and effectively prevents axial movement. At the same time, the key body achieves a firm mechanical fixation to the sole through the horizontal and inclined parts of the extension part, thereby ensuring the stability and wear resistance of the flipping mechanism in long-term repeated use, avoiding the problem of loosening or jamming of existing rotating mechanisms.

[0034] 7. By setting a first contact part with a large contact area at the top of the long main teeth and a second contact part with a smaller contact area at the top of the short main teeth, and setting multiple sets of short main teeth with decreasing length on both sides, the vertical load is reduced by dispersing it over a large area, while the lateral force is enhanced by sharp cutting and stepped support to improve stability. This improves the durability of the anti-slip teeth while maintaining a sharp gripping effect, thus optimizing the overall performance of the sole in high-intensity sports.

[0035] 8. By setting slots on the anti-slip teeth as mounting parts and integrally injection molding them with the support frame, a strong material bond is formed between the anti-slip teeth and the support frame. At the same time, the overall weight is reduced and the bonding strength with the sole is enhanced, thereby improving the manufacturing efficiency, impact resistance and wearing comfort of the sole.

[0036] This invention addresses the safety hazards caused by the poor terrain adaptability of existing fixed anti-slip soles, as well as the technical contradictions arising from the homogeneous structure of existing reversible soles, including inconvenience in operation, insufficient durability, and poor structural stability. Specifically, it not only eliminates the shortcomings of fixed structures in simultaneously handling ice and snow penetration and mud support, but also overcomes the material performance conflict between easy reversal and walking strength through the partitioned design of the elastic yielding section and the rigid reinforcement section. The combination of friction parts and precision key bodies solves the problems of difficult manual operation in harsh outdoor environments and the easy loosening and jamming of the rotating mechanism. Furthermore, by utilizing staggered tooth shapes, interlocking spaces, and differentiated contact surface designs, it breaks through the performance bottleneck of traditional toothed gripping with its single gripping direction and susceptibility to clogging and wear. Combined with an integrated injection molding connection process, it solves the problem of insufficient component bonding strength. Ultimately, it achieves an anti-slip sole that combines rapid all-terrain adaptability, ease of operation, high structural durability, and stable grip, filling the technical gap where all-terrain adaptability, operational reliability, and structural durability could not be simultaneously achieved. Attached Figure Description

[0037] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of an all-terrain anti-slip shoe sole structure according to the present invention.

[0039] Figure 2 This is a schematic diagram of the structure of a flipping component of the present invention.

[0040] Figure 3 This is a schematic diagram of an enlarged bond structure according to the present invention.

[0041] Figure 4 This is a schematic diagram of another embodiment of the protruding mating part of the present invention.

[0042] Figure 5 yes Figure 1 Enlarged cross-sectional view of point A in the middle.

[0043] Figure 6 This is a three-dimensional structural diagram of the disassembly of an anti-slip tooth assembly according to the present invention.

[0044] Figure 7 yes Figure 1 Enlarged cross-sectional view of section B.

[0045] Figure 8 This is a structural diagram of the internal structure of a flipping component mold according to the present invention.

[0046] Figure 9 This is a diagram of the internal structure of a mold for a key body according to the present invention.

[0047] Figure 10 This is a diagram of the internal structure of the first morphological groove of the second groove region of the present invention.

[0048] Figure 11 This is a diagram showing the internal structure of the second type of groove in the second groove region of the present invention.

[0049] Figure 12 This is a schematic diagram of the switching state of a flipping component according to the present invention.

[0050] Figure 13 This is a structural diagram of another embodiment of a bond body according to the present invention.

[0051] Figure 14 This is a structural diagram of another embodiment of a bond body of the present invention.

[0052] Figure 15 This is an enlarged side view of a long main tooth and a short main tooth tilted inward at a first angle according to the present invention.

[0053] Figure 16 This is an enlarged side view of the long main tooth and short main tooth tilted inward at a second angle according to the present invention.

[0054] Figure 17 This is an enlarged side view of the long main tooth and short main tooth tilted inward at a third angle according to the present invention.

[0055] Figure 18 This is a structural diagram of another embodiment of a bond body according to the present invention.

[0056] 1. Shoe sole; 2. Flip-over component; 21. Rear component; 22. First mold; 23. Second mold; 24. Third mold; 3. Support frame; 4. Protruding mating part; 5. Key body; 6. Anti-slip tooth assembly; 7. Protrusion; 8. Elastic yielding part; 9. Rigidity reinforcement part; 10. Friction part; 11. Mounting groove; 12. Side groove; 31. Through hole; 32. Mounting part; 41. Rod body; 42. Inclined surface component; 43. Arc surface component; 44. Gasket; 51. Mating groove; 511. First groove area; 5 12. Second groove area; 5121. First morphological groove; 5122. Second morphological groove; 52. Extension; 101. Raised stripe; 521. Horizontal part; 522. Inclined part; 71. Long main tooth; 72. Short main tooth; 73. Engaging part; 711. First contact part; 721. Second contact part; 321. Slot; 322. Lateral protrusion; 81. High modulus carbon fiber reinforced plate; 82. Elastic polymer layer; 74. Micro-serration; 523. Support rod; 524. Locking part; 525. Locking groove. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0058] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0059] Example 1 Reference Figure 1-9As shown in Figure 12, an all-terrain anti-slip shoe sole includes: a shoe sole 1 and at least one set of flip-up components 2 rotatably mounted on the shoe sole 1. The flip-up components 2 can be flipped relative to the shoe sole 1 to adapt to different terrains. The flip-up components 2 include a support frame 3, protruding mating parts 4 disposed on both sides of the support frame 3 for rotational engagement, and key bodies 5 rotatably engaged with the protruding mating parts 4. The key bodies 5 are fixedly embedded in the shoe sole 1, thereby enabling the support frame 3 to achieve controllable flipping relative to the shoe sole 1 through the engagement of the protruding mating parts 4 and the key bodies 5. The edge of the support frame 3 is provided with a feature for rotational operation. The friction part 10 increases the friction force of the hand; one side of the support frame 3 is provided with a plurality of anti-slip tooth groups 6, each anti-slip tooth group 6 including a plurality of staggered protrusions 7, wherein the protrusions 7 are at least one long main tooth 71 and a plurality of short main teeth 72 arranged in a staggered manner to provide multi-directional anti-slip grip when in contact with the ground; an elastic yielding part 8 is provided between adjacent anti-slip tooth groups 6 to provide flexible deformation when the support frame 3 is flipped to facilitate operation; a rigid reinforcement part 9 is formed below the anti-slip tooth group 6 to improve the structural strength and durability of the anti-slip tooth group 6.

[0060] The all-terrain anti-slip sole provided in this embodiment effectively solves the fundamental problem that fixed anti-slip structures in the prior art cannot adapt to varying terrains by setting a flip-up component 2 on the sole 1. It also overcomes the drawbacks of existing flip-up designs, such as inconvenience in operation and insufficient durability. In use, the user only needs to hold the friction part 10 on the edge of the support frame 3 to easily flip the flip-up component 2 180 degrees relative to the key body 5, so that one side of the support frame 3's anti-slip teeth 6 faces the ground as the main gripping structure, or flips it to the other side with the smooth surface facing the ground to adapt to different terrain requirements. The friction part 10 significantly increases the friction when the fingers contact the support frame 3, making the flipping operation easy and effortless without the need for special tools.

[0061] In this embodiment, two flipping components 2 are provided, one in the forefoot area and the other in the heel area of ​​the sole. The flipping component 2 in the heel area is called the rear component 21. The rear component 21 has the same structure as the flipping component 2 installed in the forefoot area, except that the rear component 21 has only one through hole 31 and is smaller than the flipping component 2 in the forefoot area.

[0062] like Figure 8 , Figure 9 As shown, the flipping component 2 located on the forefoot is injection molded by the third mold 24, the rear component 21 located on the heel is injection molded by the first mold 22, and the key body 5 is injection molded by the second mold 23.

[0063] The elastic yielding part 8 is located between adjacent anti-slip tooth assemblies 6, which further reduces the force required for flipping through flexible deformation, allowing users to quickly complete the adjustment even when the ground is cold or when wearing gloves. At the same time, the rigid reinforcement part 9 provides targeted reinforcement to the area below the anti-slip tooth assembly 6, ensuring that the staggered protrusions 7 will not bend or break when subjected to large ground impacts, thereby significantly improving the overall durability and service life of the flipping component 2.

[0064] A groove is provided in the friction part 10 area of ​​the sole 1 to facilitate contact of fingers or pry bars with the friction part 10 from the bottom. Since it is difficult to operate when fingers are inserted into the groove while wearing gloves due to the thickness of the gloves, it is more practical to use a pry bar when wearing gloves. The pry bar is any flat, rigid, long strip structure that can be inserted into the groove.

[0065] Compared with existing technologies, the advantage lies in the simple rotational engagement structure between the protruding mating part 4 and the key body 5, which achieves a stable and reliable flipping function and avoids the defects of existing complex mechanisms that are prone to jamming or loosening. Example 2 Reference Figure 2 , Figure 5 As shown, this embodiment further optimizes upon embodiment 1. Through the differentiated design of the elastic yielding part 8 and the rigid reinforcement part 9, the impact resistance of the anti-slip tooth assembly 6 is significantly improved while ensuring easy flipping operation, resolving the contradiction of difficulty in balancing flexibility and rigidity in the prior art. The anti-slip tooth assembly 6 employs multiple staggered protrusions 7, providing excellent multi-directional grip in various terrains such as ice, mud, and rocks, far exceeding the single-performance characteristics of fixed soles. With its simple structure, convenient operation, and high durability, it significantly enhances the safety and comfort of users in all-terrain environments.

[0066] During the operation of the flipping component 2, if the edge of the support frame 3 is relatively smooth, the fingers are prone to slipping, especially in humid or low-temperature environments, which will increase the flipping force and affect the quick adjustment.

[0067] The anti-slip tooth assembly 6 employs multiple staggered protrusions 7. If the height difference between the protrusions 7 is too small, the long main teeth 71 and the short main teeth 72 may simultaneously contact the ground, negating the purpose of graded biting; if the height difference is too large, the stress at the root of the long main teeth 71 becomes too concentrated, making them prone to breakage. A height ratio of 1.5:1 to 3:1 is set to ensure that the short main teeth 72 can provide effective secondary support after the long main teeth 71 penetrate, forming a stepped grip. The tooth tip angle α directly determines the sharpness of the tooth tip. An angle that is too small (<30°) is beneficial for penetrating the ice surface but the tooth tip is prone to breakage; an angle that is too large (>60°) becomes blunt, unable to effectively break ice or embed itself in mud. Limiting the angle to 30° to 60° aims to find the optimal balance between penetration performance and wear resistance. The central axis is tilted at an angle β from 5° to 15° relative to the normal. This is intended to use the geometric tilt to generate a backward horizontal component force, which enhances the forward driving force during walking and the backward resistance during braking, and prevents the straight tooth profile from lateral slipping on steep slopes.

[0068] Achieving progressive grip and enhanced stability is achieved through a height ratio ranging from 1.5:1 to 3:1. This ensures that on soft surfaces such as slush and mud, the longer main teeth 71 penetrate deeply to provide anchoring, while the shorter main teeth 72 subsequently contact the surface to provide support. This tiered contact avoids excessive stress on a single point, significantly improving the outsole's torsional stability on complex terrain. The 30° to 60° tooth tip angle design provides sufficient pressure on icy and snowy surfaces to pierce the ice layer, while also providing sufficient volume on rocky surfaces to resist abrasion and impact damage.

[0069] The insole features a natural hook effect through a tilt angle β ranging from 5° to 15°. When walking uphill, the tilted surface provides additional forward thrust; when braking downhill, the tilted surface increases backward resistance. This angle range ensures directional anti-slip performance while avoiding abruptness or sticking when the sole lands due to excessive tilt, thus guaranteeing a smooth walking experience.

[0070] The edge of the support frame 3 is provided with a friction part 10 for increasing hand friction during the flipping operation. The friction part 10 includes a plurality of raised stripes 101 provided on the two side edges of the support frame 3, and the raised stripes 101 extend along the flipping direction.

[0071] Raised stripes 101 are evenly distributed on both sides of the support frame 3, forming multiple rib-like protrusions parallel to the flipping axis. During use, when the user presses or pinches the end of the support frame 3 with their fingers, the raised stripes 101 come into direct contact with the skin, significantly increasing frictional resistance and making the flipping action more effortless and stable. Even in rainy or snowy weather or when wearing gloves, the support frame 3 can be reliably gripped to complete a 180-degree flip. The extension direction of the raised stripes 101 is consistent with the flipping trajectory, further guiding the direction of finger force, preventing lateral slippage, and improving the accuracy and safety of operation.

[0072] If the rotational fit between the protruding mating part 4 and the key body 5 uses only a simple shaft hole structure, axial movement or rotational irregularities are likely to occur during long-term use, leading to loosening or jamming of the flipping component 2. The protruding mating part 4 includes a rod 41 located on the outer side of the support frame 3 and an arc-shaped component 43 or a sloped component 42 located at the end of the rod 41. The arc-shaped component 43 is a hemisphere or cylinder, and the sloped component is a cone or frustum. The key body 5 includes a mating groove 51 that matches the shape of the rod 41 and the arc-shaped component 43 or the sloped component 42.

[0073] A shim 44 is provided on one side of the support frame 3 and fitted onto the outer ring surface of the rod 41; the shim 44 provides a gap in the connection area between the key body 5 and the support frame 3, thereby facilitating the flipping of the support frame 3. The thickness of the shim 44 is usually 1-2mm.

[0074] Example 3 Reference Figure 2 , Figure 4 As shown, this embodiment is a further optimization based on embodiment 2. The rod 41 serves as the main rotation axis, and the arc-shaped component 43 is located at both ends of the rod 41 and extends out of the side of the support frame 3, forming a limiting fit with the mating groove 51 of the key body 5. After installation, the support frame 3 can only rotate smoothly around the axis of the rod 41, while the curved or inclined structure of the arc-shaped component 43 effectively prevents axial displacement, ensuring that the flipping component 2 remains tightly fitted after repeated flipping. The inner wall of the mating groove 51 fits precisely with the arc-shaped component 43, further reducing rotational friction and improving wear resistance, making the flipping action always smooth and reliable.

[0075] In this embodiment, as Figure 2 The image shows curved surface component 43.

[0076] Example 4 Reference Figure 4 As shown, this embodiment is a parallel embodiment of embodiment 3. The rod 41 serves as the main axis of rotation, and the inclined surface member 42 is located at both ends of the rod 41 and extends out of the side of the support frame 3, forming a limiting fit with the mating groove 51 of the key body 5. After installation, the support frame 3 can only rotate smoothly around the axis of the rod 41, while the curved surface or inclined surface structure of the inclined surface member 42 effectively prevents axial displacement, ensuring that the flipping component 2 remains tightly fitted after repeated flipping. The inner wall of the mating groove 51 fits precisely with the inclined surface member 42, further reducing rotational friction and improving wear resistance, making the flipping action always smooth and reliable.

[0077] Example 5 Reference Figure 3 As shown, this embodiment is a further optimization based on embodiment 3 or 4, referring to... Figure 3As shown, if the key body 5 is fixed solely by friction during the embedding process of the sole 1, it is prone to loosening due to aging of the sole material or stress, leading to the overall failure of the flipping component 2. The key body 5 also includes an extension 52 disposed on its outer side. The upper surface of the extension 52 is a horizontal portion 521, and the lower surface of the extension is an inclined portion 522. The sole 1 is provided with a mounting groove 11 and a side groove 12 corresponding to the extension 52 at the position of the key body 5. The inclined portion 522 is used to guide the extension 52 into the side groove 12 during installation, and the horizontal portion 521 is used to limit and fix the key body 5 in the mounting groove 11.

[0078] During assembly, the key body 5 is pressed downwards into the mounting groove 11 from above the sole 1. The inclined portion 522 of the extension 52 first contacts the entrance of the side groove 12 and slides in along the inclined surface, achieving automatic alignment and guidance until the horizontal portion 521 is fully engaged with the upper edge of the mounting groove 11 to form a lock. This structure allows the key body 5 to form a firm mechanical fit with the sole 1, maintaining stable fixation even under shear or pull forces during high-intensity movement. It also facilitates rapid assembly during production, improving the overall reliability and manufacturing efficiency.

[0079] The mating groove 51 includes a first groove area 511 that matches the rod body 41 and a second groove area 512 that matches the arc surface member 43 or the inclined surface member 42. The first groove area 511 is a cylindrical groove, and the second groove area 512 has an opening width that is smaller than the width of the arc surface member 43 or the inclined surface member 42, and its internal width is larger than the width of the arc surface member 43 or the inclined surface member 42.

[0080] like Figure 10 As shown, the second groove area 512 adopts the first-shaped groove 5121. In this embodiment, it adopts a matching shape that is 1-2 mm wider than the width of the arc-shaped member 43 or the inclined member 42. In other embodiments, such as Figure 11 As shown, the second type of groove 5122 can be a structure groove composed of two frustum-shaped grooves that are wide in the middle and narrow at both ends.

[0081] The mating groove 51 employs a segmented design with a first groove area 511 and a second groove area 512. The second groove area 512 features a specific dimensional fit with a narrow opening and a wide interior, achieving decoupling between axial locking and free rotation. Traditional shaft-hole mating often struggles to balance secure fixation and smooth rotation. By dividing the mating groove 51 into a first groove area 511 that matches the rod body 41 and a second groove area 512 that matches the arc-shaped component 43 / sloping component 42, the axial limiting function is separated from the radial rotation function. The first groove area 511 provides main rotational support, while the second groove area 512 provides end locking, avoiding functional conflicts caused by a single groove structure.

[0082] Self-locking is achieved by utilizing structural interference. The opening width of the second groove area 512 is less than the maximum width of the arc-shaped component 43 or the inclined component 42. Mechanical interference fit is formed by utilizing the elastic deformation of the key body 5 material or the assembly interference. When the protruding mating part 4 is inserted into the key body 5, the component needs to squeeze into the groove. Once it is fully inserted into the inner wide area, the groove springs back and locks the neck of the component. Thus, without adding additional fasteners such as screws or retaining rings, the flipping component 2 is self-locked in the axial direction, preventing it from accidentally coming out.

[0083] A rotation clearance is provided to eliminate frictional losses. The internal width of the second groove area 512 is approximately 1-2 mm wider than the component width in this embodiment, providing the necessary tolerance space and rotation clearance for the flipping action. If the internal space were completely fitted to the component, the component surface would experience large-area sliding friction with the groove wall during flipping, resulting in high operating resistance and easy wear. The reserved clearance ensures that the component only contacts at the rod 41, while rotating suspended at the end, significantly reducing the coefficient of friction.

[0084] Furthermore, alternative embodiments such as a structural groove combining two frustum-shaped grooves that are wide in the middle and narrow at both ends are provided to accommodate the limiting requirements of protruding mating parts 4 with different shapes. The structural groove combining two frustum-shaped grooves that are wide in the middle and narrow at both ends can provide additional circumferential limiting or foolproof functions at specific angles, increasing the flexibility and applicability of the design.

[0085] Significantly improving connection stability and safety, the narrow-aperture interference design effectively prevents the flip-up component 2 from axially shifting or accidentally detaching during vigorous exercise or walking on complex terrain. This solves the problems of loosening and increased play in existing rotating mechanisms, ensuring the structural integrity of the sole during long-term use and eliminating the risk of user falls due to component detachment.

[0086] The optimized flipping operation offers a smooth and seamless feel. A 1-2mm internal gap design with ample tolerance prevents mechanical jamming during rotation. Users experience a smooth, unrestricted operation when flipping to change terrain, reducing the operating force threshold. This ensures reliable flipping even in low temperatures when materials harden or when operating with gloves.

[0087] If the elastic yielding portion 8 and the rigid reinforcement portion 9 are achieved solely through differences in material thickness, stress concentration or insufficient local strength may easily occur under complex shapes. The support frame 3 is provided with several through holes 31. The elastic yielding portion 8 is the area around the through holes 31 without anti-slip tooth group 6, and the rigid reinforcement portion 9 is the area around the through holes 31 with anti-slip tooth group 6.

[0088] Furthermore, by setting the thickness of the elastic yield portion 8 to be smaller than that of the rigid reinforcement portion 9, the elasticity of the elastic yield portion 8 and the strength of the rigid reinforcement portion 9 are further improved.

[0089] Through-hole 31 penetrates the support frame 3, forming a grid-like thinning zone. In areas without anti-slip teeth 6, a highly flexible elastic yielding section 8 naturally forms. In the area below the anti-slip teeth 6, the root of the protrusion 7 reinforces the area, creating a more rigid stiffening section 9. During use, when the user flips the end of the support frame 3, the elastic yielding section 8 undergoes controllable bending deformation through the thinning structure around the through-hole 31, significantly reducing the required flipping force. Simultaneously, the stiffening section 9 maintains the stability of the anti-slip teeth 6, preventing the protrusion 7 from tilting or breaking under ground impact. This differentiated zone design achieves a balance between flexibility and rigidity in the support frame 3, improving its fatigue resistance over long-term use.

[0090] If the protrusions 7 of the anti-slip tooth assembly 6 adopt an equal-height upright structure, they are prone to sliding as a whole on icy or muddy ground and cannot effectively engage. The protrusions 7 include a long main tooth 71 located in the middle and short main teeth 72 arranged on both sides of the long main tooth 71. The long main tooth 71 bends from the middle toward both sides to form a first preset angle, and a second preset angle is formed between the long main tooth 71 and the short main teeth 72 to form an engagement portion 73 when in contact with the ground.

[0091] The first preset angle ranges from 100 to 120 degrees; the second preset angle ranges from 15 to 25 degrees.

[0092] To achieve the best balance between arch strength and manufacturing feasibility, and between flow channel rejection efficiency and space occupation, a specific angle range is defined.

[0093] When in use, the first preset angle of 100 to 120 degrees ensures that the arch structure has sufficient bending resistance, while avoiding a decrease in strength due to an excessive angle; the second preset angle of 15 to 25 degrees allows the flow channel to expand moderately, ensuring that ice chips are discharged quickly without taking up too much space.

[0094] The combination of angles within a limited range optimizes the balance between structural strength and rejection function, resulting in the best overall performance in practical applications.

[0095] In this embodiment, the long main teeth 71 bend from the middle to both sides in a V-shape, while the short main teeth 72 are distributed on both sides and maintain a second preset angle with the long main teeth 71, forming a multi-layered biting structure. In use, the long main teeth 71 first penetrate the ground and provide the main gripping resistance through the bending angle, while the short main teeth 72 provide auxiliary support when lateral forces are applied. The biting part 73 forms an enveloping gripping effect, effectively preventing forward, backward, and lateral slippage. This staggered and angled arrangement allows the anti-slip tooth assembly 6 to quickly establish stable contact on ice, slippery rocks, or soft mud, significantly improving anti-slip performance under various terrain conditions.

[0096] If adjacent anti-skid tooth groups 6 are arranged independently, mud or snow can easily accumulate between the teeth, leading to a decrease in grip. Adjacent anti-skid tooth groups 6 cooperate with through holes 31 to form a biting space to enhance grip.

[0097] The through-holes 31 are located between adjacent anti-slip tooth groups 6, forming multiple downward-facing recessed areas with the protrusions 7 as engagement spaces. During use, when the sole 1 is stepped into soft ground, mud or snow is squeezed into the engagement spaces and compressed by the surrounding protrusions 7, creating additional mechanical locking and further enhancing overall grip. Simultaneously, on hard surfaces, the engagement spaces can also accommodate small amounts of debris, preventing the tooth tips from becoming clogged and maintaining sharp contact. This spatial structure, in conjunction with the through-holes 31, effectively improves the self-cleaning ability and sustained grip performance of the anti-slip tooth groups 6.

[0098] If the tops of the long main tooth 71 and the short main tooth 72 have the same contact area, it can easily lead to excessive local stress and accelerated wear when breaking ice or hard surfaces. The first contact portion 711 is located on the top of the long main tooth 71, and the second contact portion 721 is located on the top of the short main tooth 72. The contact area of ​​the first contact portion 711 is larger than the contact area of ​​the second contact portion 721.

[0099] The top of the long main tooth 71 is flattened or widened to form a larger first contact portion 711, while the top of the short main tooth 72 retains a sharper second contact portion 721. In use, the first contact portion 711 primarily bears the vertical load and reduces wear by dispersing pressure over a larger area, while the second contact portion 721 is responsible for lateral cutting and fine engagement. This difference in area makes the anti-slip tooth assembly 6 more durable when bearing weight, while maintaining a sharp grip during lateral slippage, thus improving the tooth's lifespan and omnidirectional anti-slip effect.

[0100] If only a single set of short main teeth 72 are provided on both sides of the long main tooth 71, insufficient lateral support may easily cause the long main tooth 71 to deviate. At least two sets of short main teeth 72 are provided on both sides of the long main tooth 71, and the length of the short main teeth 72 farther away from the long main tooth 71 is less than the length of the short main teeth 72 closer to the long main tooth 71.

[0101] The first set of shorter main teeth 72, closer to the longer main teeth 71, is longer and provides primary lateral support, while the second set of shorter main teeth 72, further away, is shorter, forming a stepped distribution. During use, multiple sets of short main teeth 72 of varying lengths sequentially contact the ground, achieving progressive engagement and avoiding instantaneous impact from a single height. This stepped arrangement further enhances the stability of the anti-slip tooth assembly 6 under lateral forces, making the anti-slip tooth assembly 6 more resistant to torsional deformation and extending its reliable performance in complex terrain.

[0102] If the anti-slip tooth assembly 6 is only fixed to the support frame 3 by adhesive, it is easy to fall off during high-intensity use. The anti-slip tooth assembly 6 also includes a mounting part 32 for fixing the support frame 3. The mounting part 32 consists of a number of slots 321 provided below the anti-slip tooth assembly 6. The anti-slip tooth assembly 6 is fixed to the support frame 3 by integral injection molding through the slots 321.

[0103] The anti-slip tooth assembly 6 has side protrusions 322 extending outward from both ends. The side protrusions 322 are embedded inside the support frame 3 and cooperate with the slots 321 to strengthen the connection between the anti-slip tooth assembly 6 and the target substrate.

[0104] During manufacturing, the anti-slip teeth 6 are pre-placed in a mold, and after mold closing, they are injection molded to form the support frame 3. The corresponding slots 321 of the anti-slip teeth 6 are filled with rubber or sole material and cured, forming an integral wrapping connection with the support frame 3. In use, this injection molding method creates a strong material bond between the anti-slip teeth 6 and the support frame 3, preventing separation even under extreme bending or impact conditions. At the same time, the slots 321 further reduce the weight of the support frame 3 and enhance the overall bonding strength with the sole 1, improving the durability and comfort of the sole.

[0105] The support frame 3 is configured as a gradient composite structure, with a high-modulus carbon fiber reinforcement plate 81 embedded inside and an elastic polymer layer 82 covering the outside. The elastic polymer layer 82 corresponds to the elastic yielding part 8, and the high-modulus carbon fiber reinforcement plate 81 is distributed on the rigid reinforcement part 9. The surface of the protrusion 7 is provided with micro-serrations 74.

[0106] The elastic yielding section 8 and the rigid reinforcement section 9 are mainly differentiated in terms of performance through thickness differences or the layout of through holes 31, but this is still limited by the physical limits of a single material. Further employing a gradient composite structure, the high-modulus carbon fiber reinforcement plate 81 has extremely high specific strength and specific modulus, naturally suitable as a load-bearing skeleton; the elastic polymer layer 82 has low modulus and high resilience, naturally suitable as a deformation hub. Distributing the two according to functional regions is to achieve optimal matching of mechanical properties.

[0107] The high-modulus carbon fiber reinforced plates 81 are distributed correspondingly below the rigid reinforcement section 9, i.e., the anti-slip tooth assembly 6, to ensure that the ground impact load can be directly transferred to the sole through the high-rigidity material, avoiding energy loss in frame deformation and preventing fracture caused by stress concentration at the root of the teeth. The elastic polymer layer 82 is correspondingly formed between the elastic yield section 8, i.e., the anti-slip tooth assembly 6, to release the overturning stress concentrated in the low-modulus area, avoiding fatigue cracks caused by repeated bending of the high-rigidity material.

[0108] In this embodiment, the high-modulus carbon fiber reinforced plate 81 is made of carbon fiber prepreg and resin matrix, and the elastic polymer layer 82 is made of thermoplastic elastomer / rubber.

[0109] Example 6 Reference Figure 13 As shown, this embodiment is a further optimization based on embodiment 5, with the two protruding mating parts 4 disposed on the outer side of the support frame 3.

[0110] The outer surface refers to the surface of the support frame 3 that is away from the central axis when it is installed. The protruding mating part 4 and the mating key 5 are arranged on the outer side of the support frame 3, so that the rotation axis of the flipping part 2 is located in the outer edge area of ​​the sole.

[0111] First, it facilitates operation and maintenance. In complex outdoor environments, users often need to frequently change the shape of the sole. Positioning the rotating mechanism on the outer side makes it easier for the user's hands or auxiliary tools, such as a pry bar, to reach the edge of the support frame 3 and the protruding mating area 4 while wearing the shoe, avoiding inconvenience caused by narrow space on the inside of the foot or interference with the other foot. Second, it optimizes force distribution. The outer arrangement results in a longer lever arm during rotation, requiring less effort from the user when applying rotation torque. This is especially beneficial in low temperatures that cause materials to harden or when wearing thick gloves, significantly reducing the operational threshold.

[0112] Example 7 Reference Figure 14 As shown, this embodiment is a parallel embodiment of embodiment 6, which is further optimized based on embodiment 5. The two protruding mating parts 4 are arranged on the inner side of the support frame 3.

[0113] The inner surface refers to the side surface of the support frame 3 that is closest to the other foot or the center of the arch when worn. The main difference between this embodiment and embodiment 6 is that the spatial layout direction of the protruding mating part 4 is reversed.

[0114] First, the mechanism's protective properties are enhanced. In scenarios such as mountaineering or jungle trekking, the outer side of the sole is more likely to come into contact with external obstacles such as rocks and branches. By concealing the protruding mating part 4 and the key body 5 on the inner side of the support frame 3, direct impact from external hard objects to the rotating mechanism can be effectively prevented, thus preventing deformation of the rod body 41 or damage to the mating groove 51, thereby improving the survivability and service life of the flipping component 2 in harsh environments. The appearance and streamlined design are improved. With no exposed mechanical structures on the outer side, the outer contour of the sole is smoother and more streamlined, reducing the risk of the outer structure snagging on ground obstacles during walking and improving the smoothness of walking.

[0115] Example 8 Reference Figure 13As shown, this embodiment is a further optimization based on embodiment 6 or embodiment 7. The key body 5 also includes at least one and at least one set of support rods 523 disposed below, and a locking part 524 disposed below the support rods 523. The lower surface of the locking part 524 is a convex arc structure, and the diameter of the locking part 524 is greater than the diameter of the support rods 523. The sole 1 is provided with locking grooves 525 corresponding to the locking part 524 and the support rods 523. The locking part 524 and the support rods 523 are fixed by inserting them into the locking grooves 525.

[0116] The locking part 524 extends vertically downwards via the support rod 523 and has an inverted T-shaped or mushroom-shaped structure. The locking groove 525 is located at the bottom of the mounting groove 11 of the sole 1, and its internal shape matches the locking part 524, providing a accommodating space that is narrower at the top and wider at the bottom.

[0117] The main purpose is to prevent the key from falling off. The original extension 52 mainly relied on the horizontal part 521 and the upper edge of the mounting groove 11 for positioning, but under long-term high-frequency impact, the sole material may experience fatigue creep. The addition of the lower support rod 523 and locking part 524 creates a two-way locking mechanism. The large-diameter structure of the locking part 524 is engaged below the narrow opening of the locking groove 525, using mechanical interference to prevent the key 5 from accidentally falling off in the vertical direction, greatly improving the safety of the connection. Furthermore, the convex arc structure on the lower surface of the locking part 524 acts as a guide cone for auxiliary installation guidance. When installing the key 5, the arc surface guides the support rod 523 to smoothly slide into the entrance of the locking groove 525, automatically correcting even minor positional deviations, reducing assembly difficulty and improving production efficiency.

[0118] It also improves shear stability. The support rod 523 extends deep into the sole, and its cooperation with the locking groove 525 increases the contact depth between the key body 5 and the sole 1. When the flipping component 2 is subjected to huge shear forces from the ground, the support rod 523 can effectively share the load, prevent the key body 5 from tilting or loosening, and ensure the structural stability of the flipping mechanism under extreme motion conditions.

[0119] Example 9 This embodiment is a further optimization based on embodiment 8. As a further improvement, the inclination angle of the tooth tip axis of the protrusion 7 relative to the vertical plane of the support frame 3 is set to 16° to 25°, and the edge of the protrusion 7 is provided with micro-serrations 74 with a depth of 0.8mm to 1.2mm. The outer surfaces of the long main teeth 71 and the short main teeth 72 are both provided with micro-serrations 74.

[0120] As a further improved embodiment, the geometry of the protrusion 7 is optimized based on an engineering translation of the biological morphology of shark teeth. Studies have shown that the tilt angle of shark teeth relative to the gingival plane is typically between 15° and 25°, and the tooth edges have micro-serrations 74 of a specific depth.

[0121] The aforementioned geometric parameters based on the shark tooth prototype are intended to solve the technical problems of existing anti-slip teeth, such as high resistance when penetrating ice, easy slippage, and easy breakage of the tooth tips.

[0122] The biomimetic limitation of the tilt angle, with shark teeth exhibiting a 15° to 25° tilt angle representing a balance between fluid dynamics and bite force, is translated into a 16° to 25° tilt angle for the ice cleats. This allows the protrusion 7 to penetrate the ice along the most energy-efficient arc when kicking. If the angle is too small, approaching vertical, while initial penetration is easy, stress concentration under vertical load can easily lead to ice cracking or tooth tip dislodgement. If the angle is too large, a significant rebound force is generated during kicking, increasing fatigue in the user's calf muscles. The angle range used in this embodiment achieves the optimal balance between penetration resistance and load-bearing stability, simulating the energy-efficient bite mechanism of a shark during predation.

[0123] The biomimetic definition of the depth of the micro-serrations 74 is achieved through the micro-serration structure 74 on the edge of a shark tooth, which effectively cuts through prey tissue. In this embodiment, by setting the micro-serrations 74 to a depth of 0.8 mm to 1.2 mm, it is equivalent to cutting microscopic tracks on the ice surface. Especially on brittle ice containing air bubbles or hard blue ice, the micro-serrations 74 can cut into the irregular crystalline structure of the ice layer, providing additional microscopic anchor points, significantly increasing friction, and preventing lateral slippage. This design overcomes the limitation of traditional smooth cutting edges that easily slip on hard ice surfaces.

[0124] Example 10 like Figure 15 As shown, specifically, the inclination angle of the tooth tip axis of the long main tooth 71 and the short main tooth 72 relative to the vertical plane of the support frame 3 is set to 16° to 25°, preferably 20°. The depth of the micro-serration 74 is 0.8mm to 1.2mm, and the width is 2mm to 3mm.

[0125] The aforementioned geometric parameters based on the shark tooth prototype are intended to solve the technical problems of existing anti-slip teeth, such as high resistance when penetrating ice, easy slippage, and easy breakage of the tooth tips.

[0126] The biomimetic limitation of the tilt angle, with a shark tooth tilt angle of 15° to 25°, represents a balance between fluid dynamics and biting force. In this embodiment, this is transformed into a crampon tilt angle of 16° to 25°, allowing the long main teeth 71 and short main teeth 72 to penetrate the ice along the most energy-efficient arc when kicking.

[0127] Example 11 like Figure 16 As shown, this embodiment is an alternative embodiment to embodiment 10. The inclination angle of the tooth tip axis of the long main tooth 71 and the short main tooth 72 relative to the vertical plane of the support frame 3 is set to 16° to 25°, preferably 16°.

[0128] If the angle is too small, less than 16°, it is close to vertical. Although it is easy to penetrate initially, stress concentration occurs when bearing vertical load, which can easily lead to ice cracking or tooth tip dislodgement.

[0129] Example 12 like Figure 17 As shown, this embodiment is an alternative embodiment to embodiment 10. The inclination angle of the tooth tip axis of the long main tooth 71 and the short main tooth 72 relative to the vertical plane of the support frame 3 is set to 16° to 25°, preferably 25°.

[0130] If the angle is too large, greater than 25°, a significant rebound force will be generated when kicking the ice, increasing fatigue in the user's calf muscles. The angle range used in this embodiment achieves the optimal balance between penetration resistance and load-bearing stability, simulating the effort-saving bite mechanism of a shark when hunting.

[0131] By biomimetically defining the depth of the micro-serrations, the micro-serration structure of the shark tooth edge can effectively cut through prey tissue. This embodiment, by setting micro-serrations to a depth of 0.8mm to 1.2mm, is equivalent to cutting microscopic tracks on the ice surface. Especially on brittle ice containing air bubbles or hard blue ice, the micro-serrations can cut into the irregular crystalline structure of the ice layer, providing additional microscopic anchor points, significantly increasing friction, and preventing lateral slippage. This design overcomes the limitation of traditional smooth cutting edges easily slipping on hard ice surfaces.

[0132] This embodiment significantly improves the grip efficiency and durability of the sole on icy and snowy terrain through a specific combination of angles and serration depths, achieving a balance between anti-slip performance and operational comfort. This engineering translation based on biomorphology gives the sole an adaptive grip capability similar to that of biological dentistry when facing complex ice conditions.

[0133] Example 13 like Figure 18 As shown, this embodiment is basically the same as embodiment 8, except that the support rod 523, locking part 524, and locking groove 525 below the key body 5 are provided in two sets. Furthermore, an extension part 52 is provided on the outer side of the key body 5.

[0134] The extension 52 in this embodiment is the same as the extension 52 in embodiment 5.

[0135] Through the coordinated operation of the extension 52, the double-group support rods 523, and the locking part 524, the locking force of the key body 5 is greatly improved.

[0136] This embodiment is implemented in the same way as Embodiment 1 in terms of principle and technical effect. For the sake of brevity, any parts not mentioned in this embodiment can be referred to the corresponding content in Embodiment 1.

[0137] It should be noted that the device structure and accompanying drawings of this invention mainly describe the principle of the invention. Based on this design principle, the specific details of the device's power mechanism, power supply system, and control system are not fully described. Those skilled in the art, understanding the principles of the invention, can clearly understand the specific details of its power mechanism, power supply system, and control system. The control method described in the application is automatic control via a controller, and the controller's control circuit can be easily implemented by those skilled in the art through simple programming.

[0138] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0139] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. An all-terrain anti-slip sole, comprising a sole (1) and at least one set of flip-up components (2) rotatably mounted on the sole (1), the flip-up components (2) being capable of flipping relative to the sole (1) to adapt to different terrains, characterized in that: The flipping component (2) includes a support frame (3), protruding mating parts (4) disposed on both sides of the support frame (3) for rotational engagement, and a key body (5) rotatably engaged with the protruding mating parts (4). The key body (5) is fixedly embedded in the sole (1), thereby enabling the support frame (3) to achieve controllable flipping relative to the sole (1) through the engagement of the protruding mating parts (4) and the key body (5). The support frame (3) has a number of anti-slip tooth groups (6) on one side. Each anti-slip tooth group (6) includes multiple staggered protrusions (7). The protrusions (7) consist of at least one long main tooth (71) and multiple short main teeth (72) arranged in staggered order to provide multi-directional anti-slip grip when in contact with the ground. An elastic yielding portion (8) is provided in the support frame (3) between adjacent anti-slip tooth groups (6) to provide flexible deformation for easy operation when the support frame (3) is flipped. A rigid reinforcement part (9) is formed below the anti-slip tooth assembly (6) to improve the structural strength of the anti-slip tooth assembly (6).

2. The all-terrain anti-slip shoe sole according to claim 1, characterized in that, The edge of the support frame (3) is provided with friction parts (10) for increasing hand friction during the flipping operation. The friction part (10) includes a plurality of raised stripes (101) disposed on the two side edges of the support frame (3), the raised stripes (101) extending in the flipping direction to enhance the friction during operation.

3. The all-terrain anti-slip shoe sole according to claim 1, characterized in that, The protruding mating part (4) includes a rod (41) disposed on the outer side of the support frame (3) and an arc surface member (43) or inclined surface member (42) disposed at the end of the rod (41). The arc surface member (43) is a hemisphere or a cylinder, and the inclined surface member (42) is a cone or a frustum. A gasket (44) is provided on one side of the support frame (3) and fitted onto the outer ring surface of the rod (41). The key body (5) includes a mating groove (51) that matches the shape of the rod body (41) and the arc surface member (43) or inclined surface member (42) to achieve smooth rotation of the support frame (3); The mating groove (51) includes a first groove area (511) that matches the rod body (41) and a second groove area (512) that matches the arc surface member (43) or the inclined surface member (42). The first groove area (511) is a cylindrical groove, and the second groove area (512) has an opening width smaller than the width of the arc surface member (43) or the inclined surface member (42) and an internal width greater than the width of the arc surface member (43) or the inclined surface member (42).

4. The all-terrain anti-slip shoe sole according to claim 3, characterized in that, The key body (5) also includes an extension (52) disposed on its outer side, the upper surface of the extension (52) being a horizontal part (521) and the lower surface of the extension being an inclined part (522). The sole (1) is provided with an installation groove (11) corresponding to the key body (5) and a side groove (12) corresponding to the extension (52). The inclined part (522) is used to guide the extension (52) into the side groove (12) during installation. The horizontal part (521) is used to limit and fix the key body (5) in the installation groove (11).

5. The all-terrain anti-slip shoe sole according to claim 1, characterized in that, The support frame (3) is provided with a number of through holes (31); The elastic yielding part (8) is the area around the through hole (31) where the anti-slip tooth group (6) is not provided, and the rigidity enhancement part (9) is the area around the through hole (31) where the anti-slip tooth group (6) is provided.

6. The all-terrain anti-slip shoe sole according to claim 1, characterized in that, The protrusion (7) includes a long main tooth (71) located in the middle and short main teeth (72) disposed on both sides of the long main tooth (71). The long main tooth (71) bends from the middle toward both sides to form a first preset angle, which is 100°-120°. A second preset angle is formed between the long main tooth (71) and the short main tooth (72), which is 15°-25°, so as to form a biting part (73) when in contact with the ground.

7. The all-terrain anti-slip shoe sole according to claim 5, characterized in that, The adjacent anti-slip tooth group (6) and the through hole (31) cooperate to form a biting space for enhancing grip.

8. The all-terrain anti-slip shoe sole according to claim 6, characterized in that, The top of the long main tooth (71) is provided with a first contact portion (711), and the top of the short main tooth (72) is provided with a second contact portion (721). The contact area of ​​the first contact portion (711) is greater than the contact area of ​​the second contact portion (721). At least two sets of short main teeth (72) are provided on both sides of the long main tooth (71), and the length of the short main teeth (72) away from the long main tooth (71) is less than the length of the short main teeth (72) close to the long main tooth (71).

9. The all-terrain anti-slip shoe sole according to claim 1, characterized in that, The anti-slip tooth assembly (6) also includes a mounting part (32) for fixing the anti-slip tooth assembly (6) on the support frame (3). The mounting part (32) includes a plurality of slots (321) provided below the anti-slip tooth assembly (6). The slots (321) are integrally injection molded with the support frame (3) to achieve fixation.

10. The all-terrain anti-slip shoe sole according to claim 1, characterized in that, The support frame (3) is configured as a gradient composite structure, with a high modulus carbon fiber reinforcement plate (81) embedded inside and an elastic polymer layer (82) covering the outside. The elastic polymer layer (82) corresponds to the elastic yielding part (8), and the high modulus carbon fiber reinforcement plate (81) is distributed on the rigid reinforcement part (9). The surface of the protrusion (7) is provided with micro-serrations (74).

11. The all-terrain anti-slip shoe sole according to claim 10, characterized in that, The tooth tip axis of the protrusion (7) is inclined at an angle of 16° to 25° relative to the vertical plane of the support frame (3), and the depth of the micro-serrations (74) provided on the edge of the protrusion (7) is 0.8 mm to 1.2 mm.

12. The all-terrain anti-slip shoe sole according to claim 1, characterized in that, The two protruding mating parts (4) are provided on the outer side of the support frame (3).

13. The all-terrain anti-slip shoe sole according to claim 1, characterized in that, The two protruding mating parts (4) are provided on the inner side of the support frame (3).

14. An all-terrain anti-slip shoe sole according to claim 1 or 3, characterized in that, The key body (5) also includes at least one set of support rods (523) disposed below, and a locking part (524) disposed below the support rods (523). The lower surface of the locking part (524) is a convex arc structure, and the diameter of the locking part (524) is greater than the diameter of the support rods (523). The sole (1) is provided with locking grooves (525) corresponding to the locking part (524) and the support rods (523). The locking part (524) and the support rods (523) are fixed by inserting them into the locking grooves (525).

15. The all-terrain anti-slip shoe sole according to claim 14, characterized in that, The key body (5) has two sets of support rods (523), locking parts (524) and locking grooves (525) below it, and the key body (5) has an extension part (52) on its outer side.

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