Composite anti-skid shoe sole with turnover locking function

Abstract

The invention discloses a composite anti-skid shoe sole with a turnover locking function. The composite anti-skid shoe sole comprises a shoe sole body and at least one set of turnover components rotationally installed on the shoe sole body. The overturning part comprises a frame body and a connecting part arranged at one end of the frame body, a plurality of anti-skid pieces are arranged on one side face of the frame body, and each anti-skid piece comprises at least two protruding parts which are staggered in a high-low mode and is used for providing an anti-skid ground gripping function; through the spherical hinge type matching of the connecting part and the matching key and the lateral guiding effect of the opening, the overturning part forms a stable temporary inclined locking state in the switching process, and therefore the problem that an existing overturning anti-skid shoe sole is accidentally overturned or loosened due to simple shaft pin or one-way buckle constraint is effectively solved; the reliability of the anti-skid function in the walking state is improved, and a user can continuously obtain stable road holding force on complex road surfaces such as ice and snow, moss, grassland, muddy road surfaces and gravel road surfaces.

Description

Technical Field

[0001] This invention relates to a composite anti-slip shoe sole with a flip-lock function, belonging to the field of anti-slip shoe sole technology. Background Technology

[0002] When walking on complex surfaces or slippery conditions such as ice, snow, moss, grass, mud, and gravel, ordinary shoe soles often fail to provide sufficient traction, significantly increasing the risk of slipping. To address this issue, various anti-slip sole designs have been developed, some of which employ fixed metal spikes or anti-slip teeth to enhance road grip. However, when using such fixed structures on everyday hard, flat surfaces, the spikes wear down quickly, causing the anti-slip function to fail prematurely. Furthermore, the hard contact between the spikes and the ground generates noise and accelerates overall sole wear, resulting in poor wearing comfort.

[0003] To address the drawbacks of fixed cleats, some existing technologies attempt to introduce flip-up or retractable anti-slip structures, allowing users to selectively display or hide the anti-slip teeth depending on road conditions. This provides strong grip when needed and avoids unnecessary wear on non-complex surfaces. For example, Chinese patent document CN223900322U discloses a multifunctional combinable anti-slip component and anti-slip sole, which uses a bracket and detachable anti-slip cleats. The anti-slip cleats are replaced via a threaded connection, and the anti-slip component is flipped using a universal joint. However, in this technical solution, replacing the anti-slip cleats requires rotation, and the threaded installation is relatively cumbersome. Furthermore, the TPU connector of the threaded connection is prone to cracking under stress. Additionally, the flip-up component rotates freely without restriction. If the user releases their grip or is subjected to external force during the flip-up process, the component can easily rotate unexpectedly or loosen, making the switching process unsmooth and even difficult to operate with one hand in wet, slippery conditions. Under impact from external forces in complex directions or frequent bending of the sole, stress concentration can easily occur in the connection area, affecting the service life.

[0004] To further optimize the flip-locking performance of anti-slip soles, Chinese patent document 202411246353.X discloses a rotatable anti-slip device and an all-terrain anti-slip sole. By setting a ball and a pivot, the anti-slip mechanism can rotate spherically relative to the mounting base, realizing the flip-up adjustment of the anti-slip surface and simplifying the assembly process to some extent. However, in actual use, it was found that although a ball-joint type is used, a stable intermediate locking mechanism is lacking during the flip-up switching process. Specifically, during the switching of the flip-up component from a hidden position to a displayed position, if there is a lack of effective lateral guidance and temporary tilt locking, the user's operation is prone to inaccurate angle control, resulting in an uneven flip-up process, and even accidental rotation or loosening when the sole is wet or when operating with one hand. In addition, the simple ball-joint type may still experience stress concentration at the connection point when subjected to long-term impact from complex road surfaces, leading to a decrease in structural strength and affecting the durability and reliability of the flip-up component.

[0005] Existing flip-up anti-slip structures generally suffer from insufficient locking stability of the flip-up component under stress. During walking, they are prone to accidental flipping or loosening due to external impacts or sole bending. This unstable locking further exacerbates stress concentration in the connection area between the flip-up component and the sole, significantly reducing the structural strength of this area and making it highly susceptible to fatigue fracture or deformation after long-term use. This chain reaction of stability and strength problems ultimately leads to a reduction in anti-slip performance. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a composite anti-slip shoe sole with a flip-lock function to solve the problems in the existing technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solution: A composite anti-slip sole with a flip-lock function includes a sole body and at least one set of flip-locking components rotatably mounted on the sole body; The flipping component includes a frame and a connecting part disposed at one end of the frame. A plurality of anti-slip parts are disposed on one side of the frame, and friction parts are disposed on the edges of both sides of the frame. The frame also includes support protrusions disposed on the side away from the anti-slip parts and located on both sides of the friction parts. The anti-slip component includes at least two staggered protrusions, each protrusion including a long main tooth and short main teeth disposed on both sides of the long main tooth, the long main tooth bending from the middle toward both sides to form a biting part; It also includes a mating key embedded in the sole body, the mating key having a mating groove that matches the connecting part and an open opening communicating with the mating groove; The connecting part includes a rod at one end of the frame and a ball component at the end of the rod. The mating groove matches the structure of the ball component to achieve a ball-joint rotational fit. The opening is located above the mating key and communicates with the mating groove. The opening extends to the side and its width is adapted to the diameter of the rod. The rod can be partially inserted into the opening to form an inclined state. Through the synergistic effect of the ball component and the mating groove, as well as the lateral guiding and limiting effect of the opening on the rod, the frame can rotate relative to the mating key and form a stable temporary inclined locking state, thereby realizing the flip-locking of the anti-slip component between the display position and the hidden position. The support protrusion is used to maintain an operating gap between the friction part and the sole body when the anti-slip part is in the hidden position.

[0008] As a further improvement, the ratio of the diameter of the rod to the maximum outer diameter of the spherical component is 1:2 to 1:3, and the surface roughness Ra value of the spherical component is 0.4μm to 0.8μm.

[0009] As a further improvement, the ratio of the lateral extension length of the opening to the diameter of the rod is 1:1.05 to 1:1.15.

[0010] As a further improvement, the surface of the friction part is provided with anti-slip texture, the depth of which is 0.5mm to 1.5mm.

[0011] As a further improvement, the height of the support protrusion is 1mm to 2mm, and the top of the support protrusion is provided with a rounded chamfer.

[0012] As a further improvement, the frame is provided with several slots, the area between adjacent anti-slip components forms an elastic yielding part, and the connecting area below the anti-slip components forms a rigid reinforcement part, so as to improve the flexibility of the flipping operation and the structural strength.

[0013] As a further improvement, the mating key includes an extension portion disposed on the outer side, the upper surface of the extension portion being a limiting portion and the lower surface being an inclined guiding portion, and an installation groove corresponding to the mating key being provided on the sole body, and a side groove corresponding to the extension portion being provided on the inner side of the installation groove, so as to realize the guiding installation and fixing of the mating key.

[0014] As a further improvement, the height ratio of the long main tooth to the short main tooth is 1.5:1 to 2.5:1; the tooth tip angle of the long main tooth is 30° to 60°. The angle of inclination of the tooth tip axis of the long main tooth and the short main tooth relative to the vertical plane of the frame is 16° to 25°, and the depth of the micro-serrations on the edge of the protrusion is 0.8mm to 1.2mm.

[0015] 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 2 to 3 times larger than the contact area of ​​the second contact portion.

[0016] As a further improvement, the spherical component is fitted with a metal sheet and several magnetic balls embedded on the outer surface of the spherical component. The inner side of the magnetic ball is magnetically attracted to the metal sheet, and the outer side of the magnetic ball abuts against the inside of the mating groove.

[0017] As a further improvement, a limiting area is provided on the mating key. When the flipping component is flipped to a temporary tilt-locked state, the limiting area limits the flipping component and controls the flipping angle of the flipping component to be less than 90°.

[0018] As a further improvement, the limiting area includes a limiting piece extending toward the open side, the limiting piece abutting against the side of the flipped rod, controlling the flipping angle of the rod to be less than 90°.

[0019] As a further improvement, the limiting area includes at least one limiting block on the upper surface of the mating key, the limiting block abutting against the lower side of the flipped frame, and the control rod flipping angle is less than 90°.

[0020] As a further improvement, the anti-slip component has side protrusions extending outwards at both ends, which are embedded inside the frame and cooperate with the through holes to strengthen the connection between the anti-slip component and the frame.

[0021] Beneficial effects 1. This invention, through the ball joint of the connecting part and the mating key and the lateral guiding effect of the open opening, enables the flipping component to form a stable temporary tilted locking state during the switching process. This effectively avoids the accidental flipping or loosening problems caused by simple axle pins or one-way buckles in existing flip-up anti-slip soles, improves the reliability of anti-slip function during walking, and enables users to continuously obtain stable grip on complex road surfaces such as ice, snow, moss, grass, mud, and gravel.

[0022] 2. Friction parts and supporting protrusions are set on the edge of the frame, so that users can easily find the gap for applying force to turn it even when it is hidden. This solves the problems of finger slippage in cold or wet environments and the disappearance of the operating gap after repeated switching. It significantly reduces the force required for flipping operation, improves the convenience of quick one-handed switching, and shortens the mode adjustment time.

[0023] 3. The frame is designed with multiple slots to form a partitioned design of elastic yielding part and rigid reinforcement part. This makes the area between adjacent anti-slip parts easy to bend during the flipping operation, while the anti-slip tooth bearing area maintains high strength. This balances the contradiction between operational flexibility and usage rigidity, avoids the problem of difficult flipping or deformation caused by uniform overall rigidity in the prior art, extends the service life of the flipping parts and improves the overall bending coordination of the sole.

[0024] 4. The mating key is permanently and securely embedded in the sole body by means of the inclined guide part of the extension and the guide part of the limiting part cooperating with the mounting groove and the side groove. This eliminates the problem of misalignment of the mating accuracy caused by temperature changes or stress during long-term use, ensures the long-term accuracy of the ball joint mating, and improves the durability and reliability of the entire anti-slip mechanism.

[0025] 5. The anti-slip components adopt a structure with long and short main teeth arranged at different heights, supplemented by biting parts and contact parts with different areas. This allows the long main teeth to break the ice surface first and generate lateral tearing force upon landing, while the short main teeth fill the gaps to form multi-point synergistic grip. This significantly enhances the initial ice-breaking ability and continuous grip stability on various icy and snowy road conditions, such as hard ice, smooth ice surfaces, and soft snow. It provides superior anti-slip performance compared to existing fixed or simply flipped spikes.

[0026] 6. The sole body is equipped with multiple independent flip-up components distributed in the forefoot and heel areas, allowing users to selectively display partial or all anti-slip components according to their actual gait and road conditions. This enables flexible switching of the anti-slip function across the entire area, improving the sole's adaptability to complex mixed road surfaces while maintaining smooth walking comfort on ordinary roads, thus expanding the practical application scenarios of the sole.

[0027] 7. By limiting the height ratio, tooth tip angle, and tilt angle of the long and short main teeth, the anti-slip component can achieve a tiered ice-breaking effect upon landing. The long main teeth are responsible for primary ice breaking, while the short main teeth assist in gripping, significantly enhancing the initial ice-breaking ability and sustained grip stability on various icy and snowy road conditions, including hard ice, smooth ice surfaces, and soft snow. In a stable temporary tilt locking state, the lateral limiting of the rod and the open end, combined with ball joint support, solves the problem of accidental rotation during flipping in existing technologies, improving the certainty and safety of mode switching.

[0028] 8. By embedding metal sheets inside the spherical component and magnetic balls on its outer surface, magnetic force is used to achieve glue-free fixation of the magnetic balls within the grooves on the surface of the spherical component. This ensures that the magnetic balls are not prone to loosening or falling off during long-term rotation, eliminating the risk of detachment caused by long-term rotation with traditional adhesive methods. During the flipping process, the magnetic balls form multi-point rolling contact with the inner wall of the mating groove. The magnetic force generates a uniform micro-damping feel, providing the user with clear gear feedback, allowing the user to accurately confirm the locking state. In addition, multi-point contact disperses concentrated stress to each magnetic ball, reducing local wear and improving the durability and locking reliability of the ball joint. Especially in the temporary tilted locking state, the multi-point support of the magnetic balls effectively prevents structural fatigue caused by single-point stress concentration, ensuring smooth flipping operation and stable locking state.

[0029] 9. By setting a limit zone on the mating key, the flipping component can be effectively limited when it flips to the temporary tilt-locked state, strictly controlling the flipping angle of the flipping component to be less than 90°. This prevents the flipping component from detaching from the predetermined track or damaging the internal mating structure due to excessive rotation, ensures the consistency and safety of the angle in the temporary tilt-locked state, improves the certainty of mode switching, and avoids accidental rotation or loosening problems caused by inaccurate angle control.

[0030] By incorporating a ball-joint flip-lock mechanism and a frame with a zoned rigid-flexible design, the reliable display and concealment of anti-slip components are achieved. This significantly improves the adaptability of the sole to complex and ordinary road surfaces such as ice, snow, moss, grass, mud, and gravel. At the same time, it ensures structural durability and ease of operation for long-term use. It overcomes the chain reaction problems caused by insufficient locking stability of existing flip-lock anti-slip soles, which leads to decreased strength and inconvenient operation. This allows the sole to reliably adjust the anti-slip mode without additional tools, improving the user's walking safety and experience in icy and snowy environments, while reducing maintenance costs caused by unnecessary wear and tear on the spikes. Attached Figure Description

[0031] 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.

[0032] Figure 1 This is a schematic diagram of a composite anti-slip shoe sole structure with a flip-lock function according to the present invention.

[0033] Figure 2 This is a schematic diagram of the front structure of a flipping component according to the present invention.

[0034] Figure 3 This is a schematic diagram of the back structure of a flipping component according to the present invention.

[0035] Figure 4 This is a schematic diagram of a three-dimensional structure of a mating bond according to the present invention.

[0036] Figure 5 yes Figure 1 Enlarged structural diagram at point A in the middle.

[0037] Figure 6 This is a three-dimensional structural diagram of an anti-slip component according to the present invention.

[0038] Figure 7 yes Figure 1 Enlarged structural diagram at point B.

[0039] Figure 8 This is a structural diagram of the internal structure of a flipping component mold according to the present invention.

[0040] Figure 9 This is a diagram showing the internal structure of another flipping component mold according to the present invention.

[0041] Figure 10 This is a diagram of the internal structure of a mold for a mating key according to the present invention.

[0042] Figure 11 This is a schematic diagram of another flipping component switching process of the present invention.

[0043] Figure 12 This is a diagram of the internal structure of a mold for a mating key according to the present invention.

[0044] Figure 13 This is a partially enlarged side view of the limiting area of ​​a mating key according to the present invention.

[0045] Figure 14 This is a partially enlarged side view of the limiting area of ​​another embodiment of the mating key of the present invention.

[0046] 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.

[0047] 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.

[0048] Figure 17 This is an enlarged side view of the long main tooth and the short main tooth tilted inward at a third angle according to the present invention.

[0049] Figure 18 This is a structural diagram of the first morphology of a coordination bond according to the present invention.

[0050] Figure 19 This is a structural diagram of a second morphology of a coordination bond according to the present invention.

[0051] Figure 20 This is a structural diagram of the third morphology of a coordination bond according to the present invention.

[0052] 1. Shoe sole body; 2. Flip-over component; 3. Mating key; 11. Mounting groove; 12. Side groove; 21. Frame; 22. Connecting part; 23. Anti-slip component; 24. Friction part; 25. Supporting protrusion; 26. Groove; 27. Elastic yielding part; 28. Rigidity reinforcing part; 29. ​​Rear part; 31. Mating groove; 32. Opening; 33. Extension part; 34. Support rod; 35. Locking part; 36. Locking groove; 221. Rod body; 222 1. Spherical component; 231. Long main tooth; 232. Short main tooth; 233. Engaging part; 234. First contact part; 235. Second contact part; 264. Through hole; 265. Side protrusion; 321. Limiting piece; 322. Limiting block; 323. Micro-serration; 2221. Metal sheet; 2222. Magnetic ball; 331. Limiting part; 332. Inclined guide part; 261. Third mold; 262. First mold; 263. Second mold. Detailed Implementation

[0053] 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.

[0054] 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.

[0055] Example 1 Reference Figure 1-10 As shown, a composite anti-slip sole with a flip-lock function includes a sole body 1 and at least one set of flip-locking components 2 rotatably mounted on the sole body 1; The flipping component 2 includes a frame 21 and a connecting part 22 provided at one end of the frame 21. A plurality of anti-slip parts 23 are provided on one side of the frame 21. The anti-slip parts 23 include at least two staggered protrusions for providing anti-slip grip function. It also includes a mating key 3 embedded in the sole body 1, the mating key 3 having a mating groove 31 that matches the connecting part 22 and an opening 32 that communicates with the mating groove 31; The connecting part 22 can be partially inserted into the open opening 32 to form an inclined state, and through the cooperation of the mating groove 31 and the ball component 222, the frame 21 can rotate relative to the mating key 3, thereby realizing the flip-locking of the anti-slip part 23 between the display position and the hidden position.

[0056] It should be noted that the stable temporary tilt locking state is achieved through a specific fit between the rod 221 and the opening 32. When the user moves the frame 21, the rod 221 does not completely disengage from the mating key 3, but rather partially inserts into the lateral extension of the opening 32. Since the width of the opening 32 is matched to the diameter of the rod 221 (specifically, the diameter of the rod 221 is 0.1mm ± 0.05mm larger than the width of the opening 32), the rod 221 is guided and limited within the opening 32 by the sidewall, preventing it from moving radially at will. The rod 221 and the opening 32 form an interference fit. The mating key 3 of the opening 32 is made of plastic, providing a certain degree of elasticity. This allows the rod 221 to enter the opening 32 during insertion through the elastic expansion of the sidewall. The opening 32 then provides lateral clamping and limiting for the rod 221, thus achieving a stable tilt limiting state.

[0057] At this time, the spherical component 222 remains within the mating groove 31, providing ball joint support, while the rod 221 is held at a specific tilt angle by the opening 32. The tilt angle is ≥30° and <90°; in this embodiment, 30° to 45° is preferred. Unlike conventional simple ball joint rotation, the frame 21, in this tilted state, achieves stability against accidental rotation through the friction between its components. The user can confirm the rotation direction in this state and then rotate the frame 180° in place, effectively preventing accidental loosening due to vibration during walking.

[0058] 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 29. The rear component 29 has the same structure as the flipping component 2 installed in the forefoot area. The main difference is that the rear component 29 has only one slot 26. The two have the same structural principle but different sizes. The rear component 29 in the heel area is smaller than the flipping component 2 in the forefoot area.

[0059] like Figure 8 , Figure 9As shown, the flipping component 2 located on the forefoot is injection molded by the third mold 261, the rear component 29 located on the heel is injection molded by the first mold 262, and the mating key 3 is injection molded by the second mold 263.

[0060] In this embodiment, the sole body 1 is a sole body made of conventional rubber or composite material, and a mounting groove 11 is preset at a corresponding position on its bottom surface for fixing the mating key 3. The mating key 3 is securely embedded into the mounting groove 11 through its outer extension 33. The upper surface of the extension 33 is a limiting part 331 and the lower surface is an inclined guide part 332, which cooperates with the side groove 12 inside the mounting groove 11. When the mating key 3 is installed from top to bottom, the inclined guide part 332 plays a guiding role, and finally the limiting part 331 achieves limiting and fixing, ensuring that the mating key 3 will not loosen or fall out in the sole body 1.

[0061] The frame 21 of the flipping component 2 is an integrally injection-molded part, with a connecting part 22 integrated at one end. The connecting part 22 specifically includes a rod 221 and a spherical component 222 at the end of the rod 221, forming a structure similar to a ball joint. The mating groove 31 of the mating key 3 is a spherical groove that matches the spherical component 222. The opening 32 is located above the mating key 3 and extends to the side, and its width allows the rod 221 to pass through and form an interference fit. The ratio of the diameter of the rod 221 to the maximum outer diameter of the spherical component 222 is 1:2 to 1:3, and the surface roughness Ra value of the spherical component 222 is 0.4μm to 0.8μm.

[0062] The ratio of the lateral extension length of the opening 32 to the diameter of the rod 221 is 1:1.05 to 1:1.15.

[0063] By limiting the ratio of the rod diameter to the maximum outer diameter of the sphere component to 1:2 to 1:3, it ensures that the sphere component has sufficient spherical contact area to disperse walking stress and prevent local crushing, while ensuring that the rod has appropriate slenderness to accurately fit the guide constraint of the open opening. The precision machining of the surface roughness Ra value of the spherical component from 0.4μm to 0.8μm reduces the frictional resistance during the flipping process to enable easy one-handed operation, and avoids loss of locking feel or excessive wear of the mating groove 31 due to excessively slippery surface. Furthermore, the ratio of the lateral extension length of the open opening to the diameter of the rod 221 is set to 1:1.05 to 1:1.15, so that the rod 221 has sufficient guiding stroke when forming a temporary tilted locking state to prevent accidental disengagement. This achieves smoothness of the flipping operation, stability of the temporary locking state achieved by friction, and wear resistance and reliability for long-term use, effectively solving the technical problems of difficult flipping or unstable locking in the prior art.

[0064] When it is necessary to switch to the anti-slip mode, the user can gently push the side of the frame 21 away from the anti-slip component 23 with their finger or the tip of the shoe, so that the ball component 222 of the connecting part 22 slides along the mating groove 31. At the same time, the rod 221 is partially inserted into the open opening 32 to form an inclined state, which is a temporary lock. The user can further rotate the frame 21 180° to flip the anti-slip component 23 from the state of being hidden in the groove of the sole body 1 to the fully exposed display position; the reverse operation can be used to put the anti-slip component 23 back in.

[0065] This ball joint-type fitting combined with the flip-locking method guided by the open opening 32 effectively solves the problem of unstable locking of the flip-up component in the prior art: the large-area spherical surface of the ball component 222 and the mating groove 31 provides multi-directional constraint force, so that even if the sole of the shoe is bent significantly or subjected to lateral impact when walking, the frame 21 will not flip over unexpectedly; at the same time, the lateral extension design of the open opening 32 makes the flip-up operation only require a light flick of one hand, without the need for special tools, which greatly improves the ease of use.

[0066] Compared with existing simple pin hinge or one-way snap-fit ​​flip structure, it has a significant advantage in locking reliability: Existing technology relies on only a single-point snap-fit ​​or pin constraint, which often leads to wear of the snap-fit ​​or loosening of the pin due to long-term bending fatigue, thus causing a decrease in structural strength; while this solution uses the ball hinge of the ball component 222 and the mating groove 31 to evenly distribute the stress to the entire ball contact area, avoiding local stress concentration; In addition, the slots 26 provided on the frame 21 form an elastic yielding part 27 between adjacent anti-slip parts 23, while the area below the anti-slip parts 23 constitutes a rigid reinforcement part 28, which further balances the flexibility of the flipping operation and the structural rigidity during use, fundamentally eliminating the causal chain problem of insufficient stability leading to a decrease in strength in the prior art.

[0067] The anti-slip component 23 has staggered protrusions, including long main teeth 231 and short main teeth 232 on both sides. The long main teeth 231 bend from the middle to both sides to form a biting part 233. The contact area of ​​the first contact part 234 at the top of the long main teeth 231 is larger than that of the second contact part 235 at the top of the short main teeth 232. This allows the long main teeth 231 to break the ice surface and provide the main grip when the sole of the shoe touches the ground on complex surfaces such as ice, snow, moss, grass, mud, and gravel. The short main teeth 232 then fill the biting space to form a multi-point synergistic anti-slip effect, which significantly improves the grip stability on complex surfaces such as ice, snow, moss, grass, mud, and gravel.

[0068] The anti-slip component 23 is a metal insert, specifically 304 stainless steel in this embodiment, but other metal materials may be used in other embodiments.

[0069] The friction parts 24 on both sides of the frame 21 and the support protrusions 25 on the side away from the anti-slip parts 23 further optimize the operating experience: the friction parts 24 increase the friction when the fingers are flicking, preventing slippage; the support protrusions 25 prevent the friction parts 24 from completely fitting the sole when the anti-slip parts 23 are hidden, ensuring that there is still enough operating clearance when flipping over next time.

[0070] Although the ball joint provides a stable multi-directional constraint force, in actual flipping operations, if the connecting part 22 is just a simple ball, the guide of the rod 221 when it is inserted into the open opening 32 is insufficient. This can easily lead to inaccurate angle control when the user moves the frame 21, resulting in an unsmooth flipping process. It may even cause the ball component 222 to temporarily jam due to an improper initial tilt angle.

[0071] The connecting part 22 includes a rod 221 disposed at one end of the frame 21 and a ball component 222 disposed at the end of the rod 221. The mating groove 31 matches the structure of the ball component 222 to achieve a ball-joint rotational fit.

[0072] The opening 32 is located above the mating key 3 and communicates with the mating groove 31. The opening 32 extends to the side and its width is adapted to the diameter of the rod 221 to allow the rod 221 to be partially inserted to form an inclined locking state.

[0073] During operation, the user moves the frame 21 to slide the ball component 222 along the mating groove 31. The rod 221 then enters the lateral extension of the opening 32. Due to the precise width match, the rod 221 is guided by the side wall within the opening 32, forming a stable tilt angle of 30° to 45°. This angle facilitates the user's application of force to continue rotating while preventing the ball component 222 from accidentally disengaging from the mating groove 31. The presence of the rod 221 significantly improves the guiding accuracy in the initial stage of the flip, making the entire frame 21's 180° rotation process smooth and controllable, allowing for easy switching even when the soles of shoes are slippery or when the user operates with one hand.

[0074] The large-area spherical contact between the spherical component 222 and the mating groove 31, combined with the guiding effect of the rod 221, forms a composite constraint mechanism, ensuring the uniqueness and repeatability of the flipping path. Compared with a simple ball joint, it significantly reduces the operational error rate while maintaining high stability in the walking state.

[0075] Although the ball joint flipping mechanism has achieved reliable locking, when the user actually moves the frame 21, if the edge of the frame 21 is smooth, the fingers are easy to slip, especially in cold weather when wearing gloves or when the fingers are sweaty. The flipping operation becomes difficult and affects the convenience of quickly switching to the anti-slip mode.

[0076] Friction parts 24 are provided on both sides of the frame 21. The friction parts 24 are used to provide auxiliary friction force when the frame 21 is flipped.

[0077] The friction part 24 has a textured surface and is located on both sides of the frame 21, allowing the user to easily move it from any direction. When switching is needed, the user can press or hook the friction part 24 with their fingers to obtain sufficient gripping force, and a light flick will cause the connecting part 22 to tilt and rotate. The friction part 24 ensures reliable operation under various environmental conditions, even if the soles of the shoes are muddy or the user's hands are wet, it can still apply stable force.

[0078] The combination of the friction part 24 and the ball joint locking mechanism further improves the smoothness and ergonomics of the overall operation, allowing users to display or hide the anti-slip part 23 in a few seconds.

[0079] When the anti-slip part 23 is stored in the hidden position, if the frame 21 is completely in contact with the bottom surface of the sole body 1, the friction part 24 will be flattened. When flipping over next time, it will be difficult for the user to find the gap for applying force, especially when the sole is covered with mud or ice and snow, the operation will become difficult.

[0080] The frame 21 also includes support protrusions 25 disposed on the side away from the anti-slip member 23 and on both sides of the friction part 24. The support protrusions 25 are used to prevent the friction part 24 from completely fitting the sole body 1 when in the hidden position.

[0081] The top of the support protrusion 25 is provided with a rounded chamfer, and the smooth rounded chamfer can distribute the pressure.

[0082] The support protrusions 25 are designed to be 1 to 2 millimeters high and are located on both sides of the friction part 24. When the anti-slip part 23 is hidden, the support protrusions 25 contact the sole body 1, forming a tiny gap, so that the friction part 24 maintains a certain protrusion height. When the user switches shoes next time, they can easily insert their fingers or the tip of the shoe into the gap and hook the friction part 24 to move it.

[0083] The support bump 25 ensures consistent operation after repeated switching, while preventing dirt or ice chips from getting into the gap and causing jamming, thus maintaining ease of use over the long term.

[0084] The frame 21 needs to have a certain degree of flexibility during the flipping process so that it can be easily turned, but the anti-slip part 23 area needs to maintain sufficient rigidity to withstand the impact of complex road surfaces such as ice, snow, moss, grass, mud, and gravel. If the overall rigidity is uniform, the flipping operation will be difficult or it will be easy to deform during use.

[0085] The frame 21 is provided with a number of slots 26, the area between adjacent anti-slip parts 23 forms an elastic yielding part 27, and the connecting area below the anti-slip parts 23 forms a rigid reinforcement part 28 to improve the flexibility of the flipping operation and the structural strength.

[0086] The slot 26 is preferably elongated or elliptical and is arranged around the middle of the frame 21, so that the area between adjacent anti-slip parts 23 without metal inserts forms an elastic yielding part 27. This part is thin and has no rigidity reinforcement, making it easy to bend and deform. Directly below the anti-slip part 23, the slot 26 is separated to form a rigid reinforcement part 28 of continuous material, providing high bending strength.

[0087] During use, the user moves the end of the frame 21, and the elastic yielding part 27 first undergoes controlled bending, reducing the required force and making the flipping easy. When the anti-slip part 23 is exposed and bears the ground pressure, the rigid reinforcement part 28 effectively resists deformation, ensuring that the long main teeth 231 and the short main teeth 232 stably engage the ice surface. The slot 26 also reduces the overall weight and improves the softness of the sole, resulting in better coordination with the bending of the sole body 1. This partitioned rigid-flexible design balances the contradiction between ease of operation and durability, significantly extending the service life of the flipping component 2.

[0088] Although the mating key 3 is basically fixed through the extension 33, if the installation method relies solely on friction during shoe sole injection molding or long-term use, it may loosen due to thermal expansion and contraction or stress, affecting the mating accuracy of the connecting part 22.

[0089] The mating key 3 includes an extension 33 on the outer side. The upper surface of the extension 33 is a limiting part 331, and the lower surface is an inclined guide part 332. The shoe sole body 1 is provided with an installation groove 11 corresponding to the mating key 3. The inner side of the installation groove 11 is provided with a side groove 12 corresponding to the extension 33, so as to realize the guiding installation and fixing of the mating key 3.

[0090] During assembly, the mating key 3 is inserted at an angle from above the sole body 1. The inclined guide part 332 first contacts the entrance of the side groove 12, providing smooth guidance. Subsequently, the limiting part 331 engages with the upper part of the side groove 12, achieving dual axial and radial limiting. After molding, the rubber material of the sole body 1 further wraps around the extension part 33 to enhance the fixing force.

[0091] This structure ensures that the mating key 3 is permanently stable within the sole body 1. Even after multiple bending or temperature changes, the positional accuracy of the mating groove 31 and the opening 32 will not shift, thus guaranteeing a long-term reliable ball joint fit of the connecting part 22.

[0092] Although the anti-slip component 23 has raised parts of varying heights, if all the raised parts are of the same height when it actually touches the ground on complex road surfaces such as ice, snow, moss, grass, mud, and gravel, the initial ice-breaking ability will be insufficient, and it will be easy to slip on hard ice surfaces.

[0093] The protrusion of the anti-slip component 23 includes a long main tooth 231 and short main teeth 232 disposed on both sides of the long main tooth 231. The long main tooth 231 bends from the middle to both sides to form a biting part 233.

[0094] The long main tooth 231 is preferably a metal insert, longer than the short main tooth 232, protruding downwards from the middle to form the first breakthrough point; the short main teeth 232 on both sides are symmetrically distributed to provide auxiliary support. The curved design of the biting part 233 causes the long main tooth 231 to generate a lateral force when it hits the ground, enhancing the tearing effect on the ice layer.

[0095] During use, the long main teeth 231 first penetrate the ice surface and expand the opening through the biting part 233 when the forefoot or heel of the sole touches the ground. Then the short main teeth 232 follow up and fill the gap, forming a multi-point stable grip, which significantly improves the anti-slip performance on smooth ice surfaces.

[0096] Although the long main tooth 231 already has a strong ice-breaking ability, if all tooth top contact areas are the same, the grip will be unevenly distributed on soft snow or mixed surfaces, which can easily lead to localized excessive wear.

[0097] The top of the long main tooth 231 is provided with a first contact portion 234, and the top of the short main tooth 232 is provided with a second contact portion 235. The contact area of ​​the first contact portion 234 is 2 to 3 times larger than the contact area of ​​the second contact portion 235.

[0098] The first contact portion 234 is preferably platform-shaped or slightly convex arc-shaped, with an area two to three times larger than the second contact portion 235, ensuring that the long main teeth 231 disperse stress and reduce wear when bearing the main pressure; the second contact portion 235 maintains a sharp cone shape to provide auxiliary penetration. On complex road surfaces such as ice, moss, grass, mud, and gravel, the long main teeth 231 first breaks up the ice layer over a large area, and then the short main teeth 232 precisely embed into the cracks, forming a tiered gripping effect.

[0099] The design with area differences optimizes the balance of wear resistance and grip under different road conditions, enabling the anti-skid component 23 to maintain high performance in both hard ice and soft snow.

[0100] While a single flip component 2 can provide localized anti-slip enhancement, when the overall force distribution on the sole is uneven, a single-point switching is insufficient to meet the needs of the entire area, especially in scenarios where strong grip is required in both the forefoot and heel.

[0101] The sole body 1 includes multiple mounting positions for rotating components 2, which are distributed in the forefoot area and / or heel area of ​​the sole to enable optional switching of full-area anti-slip function.

[0102] The preferred arrangement is one set of flip-up components 2 in the forefoot area and one set in the heel area, which can be adjusted according to shoe size. Each flip-up component 2 operates independently, and the user can selectively flip out the forefoot or heel anti-slip components 23 according to the actual road surface, or flip them all out to cope with extreme icy and snowy environments.

[0103] The multi-point distribution ensures balanced grip under various gait conditions while maintaining smoothness on ordinary surfaces, significantly improving the overall adaptability of the sole.

[0104] The ball joint type controllable flip-locking setting of the connecting part 22 and the mating key 3 realizes a reliable and convenient anti-slip mode switching, while taking into account structural strength and operational flexibility. It fundamentally solves the chain technical problem of unstable locking leading to decreased strength and unreliable anti-slip function in the existing technology, and provides users with a highly reliable composite anti-slip sole that can be freely switched between ice and snow and ordinary road surfaces.

[0105] Example 2 Reference Figure 6 As shown, this embodiment further improves upon embodiment 1 to address the problem of anti-slip components easily detaching during high-intensity use. Through a specific connection process involving through-hole injection molding and the embedding of side protrusions, the local structural strength is enhanced. If the anti-slip component 23 is only fixed to the frame 21 by adhesive bonding, it is prone to detachment during high-intensity use. The anti-slip component 23 also includes a mounting portion for fixing it to the frame 21. The mounting portion consists of several through holes 264 located below the anti-slip component 23, and is fixed to the frame 21 through integral injection molding via the through holes 264.

[0106] The anti-slip component 23 has side protrusions 265 extending outwards on both sides. The side protrusions 265 are embedded inside the frame 21 and cooperate with the through holes 264 to strengthen the connection between the anti-slip component 23 and the frame 21.

[0107] During manufacturing, the anti-slip component 23 is pre-placed in a mold, and after mold closing, it is injection molded to form the frame 21. The corresponding through holes 264 of the anti-slip component 23 are filled with rubber or sole material and cured, forming an integral wrapping connection with the frame 21. In use, this injection molding method creates a strong material bond between the anti-slip component 23 and the frame 21, preventing separation even under extreme bending or impact conditions. At the same time, the through holes 264 further reduce the weight of the frame 21 and enhance the overall bonding strength with the sole, improving the durability and comfort of the sole.

[0108] Example 3 Reference Figure 12As shown, this embodiment further improves upon embodiment 2. To further optimize the damping characteristics and locking force of the ball-joint rotational fit, a metal sheet 2221 and several magnetic balls 2222 embedded on the outer surface of the ball component 222 are embedded inside the ball component 222. Several concave grooves are provided on the surface of the ball component 222 corresponding to the magnetic balls 2222, with the magnetic balls 2222 located within these grooves. One side of the magnetic ball 2222 is magnetically attracted to the metal sheet 2221, using magnetic force to achieve glue-free fixation of the magnetic ball 2222 within the grooves on the surface of the ball component 222, ensuring that the magnetic ball 2222 is not easily loosened or detached during long-term rotation. The outer surface of the magnetic ball 2222 abuts against the inside of the mating groove 31, providing uniform contact support during rotation.

[0109] The metal sheet 2221 is an iron-based alloy, and the magnetic ball 2222 has a magnetic force of 5-10N. The magnetic ball 2222 is pressed into the spherical component 222 through a concave groove. The depth of the groove is 1 / 2 of the diameter of the magnetic ball. The attraction force between the magnetic ball 2222 and the metal sheet 2221 is controlled to 8N by adjusting the thickness of the metal sheet 2221.

[0110] Especially when a temporary tilt lock is formed, the multi-point contact between the magnetic ball 2222 and the mating groove 31 can effectively disperse the contact stress, and the magnetic properties of the magnetic ball 2222 provide a micro-damping feel, so that the user has a clear sense of the gear position when flipping, which further enhances the reliability of the stable temporary tilt lock and the operating experience.

[0111] By utilizing the magnetic attraction between the internal metal sheet 2221 and the external magnetic ball 2222, the magnetic ball 2222 is stably embedded without adhesive, avoiding the risk of detachment caused by long-term rotation in traditional adhesive bonding. During the rotation process, the magnetic ball 2222 forms multi-point rolling contact with the inner wall of the mating groove. The magnetic force generates a uniform micro-damping sensation, providing the user with clear gear feedback to confirm the locked state.

[0112] Meanwhile, multi-point contact disperses concentrated stress to each magnetic ball 2222, reducing localized wear and improving the durability and locking reliability of the ball joint. Especially in the temporary tilted locking state, the multi-point support of the magnetic ball 2222 effectively prevents structural fatigue caused by single-point stress concentration, ensuring the smoothness of the flipping operation and the stability of the locking state.

[0113] Example 4 Reference Figure 13 As shown, this embodiment is a further improvement on embodiment 3. A limiting area is provided on the mating key 3. This limiting area limits the flipping component 2 when it flips to the temporary tilt-locked state, controlling the flipping angle of the flipping component 2 to be less than 90°. The limiting block 322, by being located on the mating key 3, is less prone to breakage.

[0114] In this embodiment, the limiting area includes a limiting piece 321 extending toward the opening 32. The limiting piece 321 abuts against the side of the flipped rod 221, controlling the flipping angle of the rod 221 to be less than 90°.

[0115] The rotating core component rod 221 is directly constrained. Rod 221 is the connecting hub between the flipping component 2 and the mating key 3, and its rotation angle directly determines the state of the flipping component. By providing a limiting piece 321 extending towards the opening 32 on the mating key 3, a physical barrier can be directly formed near the rotation axis.

[0116] The extended design not only serves as a limit, but also provides guidance during the initial flipping phase. When the rod 221 enters the opening 32, the inclined surface guides the rod to smoothly enter the temporary tilt-locked state, reducing any sense of jamming during operation.

[0117] Because it directly abuts against the side of the rod 221, this structure can more accurately control the angle of the rotation center, avoid angle errors caused by the deformation of the frame 21 itself, and ensure the consistency of the angle in the temporary locked state, which is strictly less than 90°.

[0118] By applying the limiting force directly to the rod, the direct impact between the frame 21 and the mating key 3 surface during the flipping process is avoided, which helps to protect the integrity of the frame structure.

[0119] Example 5 Reference Figure 14 As shown, this embodiment can replace or be implemented together with embodiment 4. The limiting area includes at least one limiting block 322 disposed on the upper surface of the mating key 3. The limiting block 322 abuts against the lower side of the flipped frame 21, and the flipping angle of the control rod 221 is less than 90°. In this embodiment, four limiting blocks 322 are provided, two on each side. The limiting blocks 322 can also be configured as other conventional aggregate structures such as strips. The limiting blocks 322 are not easily broken by being disposed on the mating key 3.

[0120] The main structural frame 21 of the flipping component is constrained. Unlike embodiment 4, it does not directly contact the thin rod, but rather abuts against the lower side of the flipping frame 21 through the limiting block 322 on the upper surface of the mating key 3.

[0121] Since the frame 21 is typically larger and stronger than the rod 221, the limiting block 322, which abuts against the frame, can withstand greater impact forces. This limiting method is less prone to deformation during walking or when subjected to ground reaction forces, resulting in more reliable locking.

[0122] The limiting block 322 is set on the upper surface of the mating key 3, and the mold processing is relatively simple. The shape and number of the limiting block 322 can be adjusted according to the actual space, such as two on each side, to adapt to the spatial layout of different shoe sole sizes. The multi-point distribution of the limiting block 322 provides balanced support force, preventing the frame 21 from tilting during limiting, and further enhancing the stability of the temporary locking state.

[0123] Example 6 This embodiment further optimizes upon embodiment 5. To optimize the balance between ice-breaking effect and wear resistance, the height of the long main tooth 231 is designed to be 5mm to 8mm, and the height of the short main tooth 232 is designed to be 2mm to 4mm, so that the height ratio of the long main tooth 231 to the short main tooth 232 is maintained between 1.5:1 and 2.5:1. The included angle of the tooth tip of the long main tooth 231 is preferably 30° to 60° to ensure sufficient puncture strength on hard ice surfaces and to prevent breakage. Furthermore, the depth of the anti-slip texture on the surface of the friction part 24 is preferably 0.5mm to 1.5mm to ensure sufficient pushing force even in wet and slippery environments. The height of the support protrusion 25 is designed to be 1mm to 2mm, which is sufficient to create an operating gap when hidden, while not causing a noticeable foreign object sensation when the sole of the shoe touches the ground.

[0124] The ball joint structure with magnetic ball 2222 has undergone 100,000 flipping tests, and the stress concentration factor is reduced by 60% compared with the traditional ball joint.

[0125] The tooth tip axis of the long main tooth 231 and the short main tooth 232 is inclined at an angle of 16° to 25° relative to the vertical surface of the frame 21, and the depth of the micro-serrations 323 provided on the edge of the protrusion is 0.8mm to 1.2mm. The surfaces of the long main tooth 231 and the short main tooth 232 are both provided with micro-serrations 323.

[0126] The geometry of the long main teeth 231 and the short main teeth 232 is optimized based on the principles of bionics to adapt to low-friction terrain such as ice and snow.

[0127] like Figure 15 As shown, specifically, the inclination angle of the tooth tip axis of the long main tooth 231 and the short main tooth 232 relative to the vertical plane of the frame 21 is set to 16° to 25°, preferably 20°. The depth of the micro-serration 323 is 0.8mm to 1.2mm, and the width is 2mm to 3mm.

[0128] 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.

[0129] The biomimetic limitation of the tilt angle, with a shark tooth tilt angle of 15° to 25°, is a balance between fluid dynamics and biting force. In this embodiment, it is transformed into a crampon tilt angle of 16° to 25°, which allows the long main teeth 231 and the short main teeth 232 to penetrate the ice along the most energy-saving arc when kicking.

[0130] Example 7 like Figure 16 As shown, this embodiment is an alternative embodiment to embodiment 6. The inclination angle of the tooth tip axis of the long main tooth 231 and the short main tooth 232 relative to the vertical plane of the frame 21 is set to 16° to 25°, preferably 16°.

[0131] 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.

[0132] Example 8 like Figure 17 As shown, this embodiment is an alternative embodiment to embodiment 6. The inclination angle of the tooth tip axis of the long main tooth 231 and the short main tooth 232 relative to the vertical plane of the frame 21 is set to 16° to 25°, preferably 25°.

[0133] 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.

[0134] 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.

[0135] Example 9 Reference Figure 18 As shown, this embodiment is basically the same as embodiment 1, except that the extension 33 of the mating key 3 in embodiment 1 is replaced by a component. The mating key 3 also includes at least one set of support rods 34 disposed below, and a locking part 35 disposed below the support rods 34. The lower surface of the locking part 35 is an outwardly convex arc structure, and the diameter of the locking part 35 is greater than the diameter of the support rods 34. The sole body 1 is provided with locking grooves 36 corresponding to the locking part 35 and the support rods 34, and the locking part 35 and the support rods 34 are fixed by inserting them into the locking grooves 36.

[0136] The locking part 35 extends vertically downwards via the support rod 34 and has an inverted T-shaped or mushroom-shaped structure. The locking groove 36 is located at the bottom of the mounting groove 11 of the sole body 1, and its internal shape matches that of the locking part 35, providing a accommodating space that is narrower at the top and wider at the bottom.

[0137] Example 10 like Figure 19 As shown, this embodiment is an alternative to embodiment 9, the difference being that the support rod 34, locking part 35, and locking groove 36 below the mating key 3 are provided in two sets. The two sets enhance the locking strength.

[0138] Example 11 like Figure 20 As shown, this embodiment is basically the same as embodiment 10, except that the outer side of the mating key 3 is provided with an extension 33.

[0139] The extension 33 in this embodiment is the same as the extension 33 in embodiment 5.

[0140] Through the coordinated cooperation of the extension 33 with the double-group support rods 34 and the locking part 35, the locking force of the mating key 3 is greatly improved.

[0141] The main purpose is to prevent the mating key from falling off. The original extension 33 mainly relied on the limiting part 331 and the upper edge of the mounting groove 11 for positioning. However, under long-term high-frequency impact, the sole material may experience fatigue creep. By adding the lower support rod 34 and locking part 35, a two-way locking mechanism is formed. The large-diameter structure of the locking part 35 is locked below the narrow opening of the locking groove 36, using mechanical interference to prevent the mating key 3 from accidentally falling off in the vertical direction, greatly improving the safety of the connection. In addition, the convex arc structure on the lower surface of the locking part 35 acts as a guide cone to assist in installation guidance. When installing the mating key 3, the arc surface can guide the support rod 34 to slide smoothly into the entrance of the locking groove 36. Even if there is a slight positional deviation, it can be automatically corrected, reducing assembly difficulty and improving production efficiency.

[0142] Simultaneously, it improves shear stability. The support rod 34 extends deep into the sole, and its engagement with the locking groove 36 increases the contact depth between the mating key 3 and the sole body 1. When the flipping component 2 is subjected to huge shear forces from the ground, the support rod 34 can effectively share the load, preventing the mating key 3 from tilting or loosening, thus ensuring the structural stability of the flipping mechanism under extreme motion conditions.

[0143] 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.

[0144] It should be noted that the device structure and accompanying drawings of this invention mainly describe the principle of this invention. The standard parts used can all be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0145] 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 present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A composite anti-slip shoe sole with a flip-lock function, characterized in that: It includes a sole body (1) and at least one set of flipping components (2) rotatably mounted on the sole body (1); The flipping component (2) includes a frame (21) and a connecting part (22) provided at one end of the frame (21). A plurality of anti-slip parts (23) are provided on one side of the frame (21), and friction parts (24) are provided on the two side edges of the frame (21). The frame (21) also includes support protrusions (25) provided on the side away from the anti-slip parts (23) and located on both sides of the friction parts (24). The anti-slip component (23) includes at least two staggered protrusions, each protrusion including a long main tooth (231) and short main teeth (232) disposed on both sides of the long main tooth (231). The long main tooth (231) bends from the middle toward both sides to form a biting part (233). It also includes a mating key (3) embedded in the sole body (1), the mating key (3) having a mating groove (31) that matches the connecting part (22) and an opening (32) that communicates with the mating groove (31). The connecting part (22) includes a rod (221) disposed at one end of the frame (21) and a ball component (222) disposed at the end of the rod (221). The mating groove (31) matches the structure of the ball component (222) to achieve a ball-joint rotational fit. The opening (32) is located above the mating key (3) and communicates with the mating groove (31). The opening (32) extends to the side and its width is adapted to the diameter of the rod (221). The rod (221) can be partially inserted into the opening (32) to form an inclined state. Through the synergistic effect of the ball component (222) and the mating groove (31) and the lateral guiding limit of the opening (32) on the rod (221), the frame (21) can rotate relative to the mating key (3) and form a stable temporary inclined locking state, thereby realizing the flip-locking of the anti-slip part (23) between the display position and the hidden position. The support protrusion (25) is used to maintain an operating gap between the friction part (24) and the sole body (1) when the anti-slip part (23) is in the hidden position.

2. The composite anti-slip sole with a flip-lock function according to claim 1, characterized in that: The ratio of the diameter of the rod (221) to the maximum outer diameter of the spherical component (222) is 1:2 to 1:3, and the surface roughness Ra value of the spherical component (222) is 0.4μm to 0.8μm.

3. A composite anti-slip sole with a flip-lock function according to claim 2, characterized in that: The ratio of the lateral extension length of the opening (32) to the diameter of the rod (221) is 1:1.05 to 1:1.

15.

4. A composite anti-slip shoe sole with a flip-lock function according to claim 1, characterized in that: The friction part (24) has anti-slip texture on its surface, and the depth of the anti-slip texture is 0.5 mm to 1.5 mm.

5. A composite anti-slip sole with a flip-lock function according to claim 4, characterized in that: The height of the support protrusion (25) is 1mm to 2mm, and the top of the support protrusion (25) is provided with a rounded chamfer.

6. A composite anti-slip shoe sole with a flip-lock function according to claim 1, characterized in that: The frame (21) is provided with a number of slots (26), the area between adjacent anti-slip parts (23) forms an elastic yielding part (27), and the connecting area below the anti-slip parts (23) forms a rigid reinforcement part (28) to improve the flexibility and structural strength of the flipping operation.

7. A composite anti-slip sole with a flip-lock function according to claim 1, characterized in that: The mating key (3) includes an extension (33) on the outer side. The upper surface of the extension (33) is a limiting part (331), and the lower surface is an inclined guide part (332). The shoe sole body (1) is provided with an installation groove (11) corresponding to the mating key (3). The inner side of the installation groove (11) is provided with a side groove (12) corresponding to the extension (33) to realize the guiding installation and fixing of the mating key (3).

8. A composite anti-slip sole with a flip-lock function according to claim 1, characterized in that: The height ratio of the long main tooth (231) to the short main tooth (232) is 1.5:1 to 2.5:1; the tooth tip angle of the long main tooth (231) is 30° to 60°. The tooth tip axis of the long main tooth (231) and the short main tooth (232) are inclined at an angle of 16° to 25° relative to the vertical surface of the frame (21), and the edge of the protrusion is provided with micro-serrations (323), the depth of which is 0.8mm to 1.2mm.

9. A composite anti-slip shoe sole with a flip-lock function according to claim 8, characterized in that: The top of the long main tooth (231) is provided with a first contact portion (234), and the top of the short main tooth (232) is provided with a second contact portion (235). The contact area of ​​the first contact portion (234) is 2 to 3 times larger than the contact area of ​​the second contact portion (235).

10. A composite anti-slip shoe sole with a flip-lock function according to claim 1, characterized in that: The spherical component (222) is fitted with a metal sheet (2221) and a number of magnetic balls (2222) fitted on the outer surface of the spherical component (222). The magnetic balls (2222) are magnetically attracted to the metal sheet (2221) on one side inside, and the magnetic balls (2222) are in contact with the inside of the mating groove (31) on the outside.

11. A composite anti-slip sole with a flip-lock function according to claim 1, characterized in that: The mating key (3) is provided with a limiting area. When the flipping component (2) is flipped to a temporary tilt lock state, the limiting area limits the flipping component (2) and controls the flipping angle of the flipping component (2) to be less than 90°.

12. A composite anti-slip shoe sole with a flip-lock function according to claim 11, characterized in that: The limiting area includes a limiting piece (321) extending toward the side of the open opening (32), the limiting piece (321) abutting against the side of the flipped rod (221), and controlling the flipping angle of the rod (221) to be less than 90°.

13. A composite anti-slip sole with a flip-lock function according to claim 11, characterized in that: The limiting area includes at least one limiting block (322) provided on the upper surface of the mating key (3), the limiting block (322) abutting against the lower side of the flipped frame (21), and the control rod (221) flipping angle is less than 90°.

14. A composite anti-slip sole with a flip-lock function according to claim 11, characterized in that: The mating key (3) also includes at least one set of support rods (34) disposed below, and a locking part (35) disposed below the support rods (34). The lower surface of the locking part (35) is an outwardly convex arc structure, and the diameter of the locking part (35) is greater than the diameter of the support rods (34). The sole body (1) is provided with locking grooves (36) corresponding to the locking part (35) and the support rods (34). The locking part (35) and the support rods (34) are fixed by inserting them into the locking grooves (36).

15. A composite anti-slip sole with a flip-lock function according to claim 14, characterized in that, The key (3) has two sets of support rod (34), locking part (35) and locking groove (36) below it, and the key (3) has an extension part (33) on its outer side.

16. A composite anti-slip shoe sole with a flip-lock function according to claim 1, characterized in that, The anti-slip component (23) also includes a mounting part for fixing the mounting frame (21). The mounting part consists of several through holes (264) located below the anti-slip component (23). The component is fixed by injection molding the through holes (264) and the frame (21). The anti-slip component (23) has side protrusions (265) extending outward from both ends. The side protrusions (265) are embedded inside the frame (21) and cooperate with the through hole (264) to strengthen the connection between the anti-slip component (23) and the frame (21).

Images