Locking anti-skid wear-resistant leather shoes

Abstract

The utility model belongs to the field of leather shoes, in particular to a pair of locking anti-skidding wear-resistant leather shoes, which is used for solving the problems that the traditional leather shoes are inconvenient to put on and take off, the anti-skidding performance is insufficient, the heels cannot be independently replaced and the heels are easily rubbed, the leather shoes comprise soles, the heels and vamps, and the heels are detachably connected with the soles through stainless steel fixing screws. The bottom surfaces of the sole and the heel are respectively provided with a plurality of groups of anti-skid grooves which are distributed in a staggered manner, the vamp is provided with strip-shaped holes so as to improve the wearing and taking-off convenience, a detachable insole with an anti-abrasion pad is arranged in the shoe, the sole is made of blended rubber added with anti-abrasion particles, and the heel is made of a high-hardness TPU material and is sprayed with a ceramic coating. The walking safety is improved through the staggered anti-skid structures, the use cost is reduced through the detachable heels, the wearing comfort is improved through the elastic openings and the anti-abrasion pad structures, and the anti-skid shoes are suitable for daily walking and various ground environments.

Description

Technical Field

[0001] This utility model relates to the field of leather shoe technology, and in particular to locking, anti-slip and wear-resistant leather shoes. Background Technology

[0002] In the shoemaking industry, traditional leather shoes generally suffer from the following technical defects:

[0003] Insufficient ease of wearing: The upper lacks an elastic expansion structure, requiring users to repeatedly loosen and untie the shoelaces when putting on and taking off the shoes, which is especially unfriendly to people with high insteps.

[0004] Limitations of anti-slip performance: The anti-slip treads on the soles are mostly designed in a single direction, which makes them prone to slipping on wet marble or oily surfaces, posing a safety hazard.

[0005] High maintenance costs: The heel is fixedly connected to the sole, and the entire shoe needs to be replaced after the heel wears out, resulting in a waste of resources;

[0006] Poor comfort: Lacking foot abrasion protection structure, prolonged wear can easily cause friction damage to the heel area. Utility Model Content

[0007] The purpose of this utility model is to address the shortcomings of existing leather shoes, such as: insufficient ease of wearing; lack of elastic expansion structure in the upper, requiring users to repeatedly loosen and untie shoelaces when putting on and taking off shoes, which is particularly unfriendly to people with high insteps; limited anti-slip performance; the anti-slip pattern on the sole is mostly designed in a single direction, making it easy to slip on wet marble or oily surfaces, posing a safety hazard; high maintenance costs; the heel is fixedly connected to the sole, requiring the entire shoe to be replaced after the heel wears out, resulting in a waste of resources; and poor comfort; the lack of foot abrasion protection structure, which can easily cause friction damage to the heel area after prolonged wear. Therefore, this invention proposes a locking, anti-slip, and wear-resistant leather shoe.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] Locking, anti-slip, and wear-resistant leather shoes include a sole and a heel. The bottom of the sole is fixedly connected to the heel via a detachable connecting mechanism. The top of the sole is integrally formed with an upper. The front end of the upper has a strip-shaped hole, and multiple shoelace holes are symmetrically distributed on both sides of the strip-shaped hole. The inner wall of the upper is integrally formed with a tongue.

[0010] The bottom surface of the sole is provided with a first anti-slip groove arranged in parallel, and the bottom surface of the heel is provided with a second anti-slip groove and a third anti-slip groove, the second anti-slip groove and the third anti-slip groove being distributed at a 60° intersection angle;

[0011] The detachable connection mechanism includes a threaded hole at the heel of the sole and a threaded groove at the top of the heel. The threaded hole and the threaded groove are coaxially connected by a stainless steel fixing screw. A limit block is fixed to the top of the stainless steel fixing screw, and a strip plate is vertically connected to the limit block.

[0012] In one possible design, the first anti-slip groove has a depth of 3.0 mm and a groove spacing of 1.8 mm, the second and third anti-slip grooves both have a depth of 2.5 mm, and the second anti-slip groove is arranged at a 45° angle.

[0013] In one possible design, the sole is made of a blend of natural rubber and butadiene rubber in a 65:35 ratio, with the addition of 25% silicon carbide particles, and the heel is made of TPU material with a Shore hardness of D72, the surface of which is coated with a ceramic coating containing 40% aluminum oxide.

[0014] In one possible design, the heel portion of the sole has a circular groove, in which a cylindrical pressure block is embedded. The bottom of the cylindrical pressure block has a receiving cavity with a depth of 4.5 mm to completely accommodate the limiting block and the strip plate.

[0015] In one possible design, a rubber pad is bonded to the top of the cylindrical pressure block. The rubber pad is flush with the surface of the shoe sole and has a thickness of 3mm with anti-slip texture pressed onto its surface.

[0016] In one possible design, the upper has a removable insole, and the heel portion of the insole has an integrally formed anti-abrasion pad, which is composed of a memory foam and a polyurethane composite layer.

[0017] In one possible design, the length of the strip hole extends to the position of the third shoelace hole, the width of the strip hole is 8mm and the edge of the hole is covered with an elastic fiber reinforcement layer.

[0018] In one possible design, the outsole is covered with a 2.5mm thick TPU edge, and the joint between the edge and the outsole forms a 30° support angle.

[0019] In one possible design, the stainless steel fixing screw is of M4 specification, and the inner wall of the threaded groove is provided with a thread structure that matches the stainless steel fixing screw.

[0020] In this application, when the user wears the shoes, the design of the strip-shaped holes allows the front part of the shoe upper to open to a larger extent, making it easier for the user to wear them. The design of multiple shoelace holes facilitates the insertion of shoelaces. The bottom of the sole and heel is provided with multiple first anti-slip grooves, second anti-slip grooves, and third anti-slip grooves, which are arranged in an alternating manner to improve the anti-slip performance of the shoes. The sole is mainly made of a blend of natural rubber (NR) and butadiene rubber (BR), with 20-30% silicon carbide (SiC) or silicon dioxide (SiO2) wear-resistant filler added. The heel is made of TPU (Shore D 70-75 hardness) and the surface is sprayed with a ceramic coating (Al2O3 content 40%) to improve the wear resistance of the shoes. The insole and anti-abrasion pad can improve the comfort of the shoes.

[0021] In another embodiment, the heel can be disassembled. Specifically, the insole is removed. The insole and anti-abrasion pad are integrated, exposing the rubber pad. The rubber pad can be poured out, revealing multiple strip plates. The strip plates can be used to drive the limiting block to rotate, and the limiting block drives the stainless steel fixing screw to rotate. The stainless steel fixing screw moves out from the inside of the threaded groove, allowing the heel to be replaced.

[0022] Beneficial effects:

[0023] The strip-shaped perforation design allows the front of the shoe to be extended laterally by more than 20mm. Combined with the rectangular array layout of the shoelace holes, it achieves the dual advantages of quick on and off and precise fit. Tests have shown that the wearing time is reduced to 1 / 3 of that of traditional leather shoes.

[0024] The first anti-slip groove adopts a 30° inclined groove design, and the second and third anti-slip grooves form a 60° cross network. The dry friction coefficient on the tile floor reaches 0.85, and the wet friction coefficient remains at 0.62, which is more than 40% higher than the traditional pattern.

[0025] The sole uses NR / BR blended rubber as the base material. After adding 25% silicon carbide (SiC), the DIN abrasion rate is reduced to 98mm³, which extends the service life by 2 times compared with conventional materials.

[0026] The heel uses Shore D75 grade TPU, and the surface has a 40% aluminum oxide (Al2O3) ceramic coating, which reduces Akron abrasion to 0.05g / 1000r and shows no cracks after 10,000 bending tests.

[0027] The connection structure of stainless steel fixing screws and threaded grooves enables quick replacement of shoe heels, with a single disassembly time of ≤2 minutes. The matching strip plate and limit block increase the tool's operating space by 300%, solving the problem of disassembly in confined spaces.

[0028] The insole and anti-friction pad are integrated into one design, and the heel area uses a memory foam composite layer, which increases the pressure distribution coefficient to 0.45N / cm² (compared to 0.78N / cm² for regular insoles). After being tested by 2,000 people, there were no pressure marks after wearing them continuously for 8 hours.

[0029] The shoe edges are wrapped with 2mm thick TPU, forming a 30° support angle with the sole, and the lateral torsional strength reaches 15N·m, effectively preventing the risk of ankle sprains;

[0030] The cylindrical pressure block and rubber gasket form a waterproof sealing structure, enabling the threaded connection to reach an IPX5 waterproof rating and preventing corrosion caused by water seepage during rainy days. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the locking, anti-slip, and wear-resistant leather shoes proposed in this utility model;

[0032] Figure 2 This is a three-dimensional structural diagram from a second perspective of Embodiment 1 of the locking, anti-slip, and wear-resistant leather shoes proposed in this utility model;

[0033] Figure 3 This is a three-dimensional structural diagram of Embodiment 2 of the locking, anti-slip, and wear-resistant leather shoes proposed in this utility model;

[0034] Figure 4 This is an exploded structural diagram of the sole and heel of the locking, anti-slip, and wear-resistant leather shoes proposed in this utility model;

[0035] Figure 5 This is an exploded structural diagram of the cylindrical pressure block and stainless steel fixing screws in the locking anti-slip and wear-resistant leather shoes proposed in this utility model.

[0036] In the diagram: 1. Sole; 2. Edge; 3. Heel; 4. Tongue; 5. Strip perforation; 6. Lace eyelets; 7. Upper; 8. First anti-slip groove; 9. Second anti-slip groove; 10. Third anti-slip groove; 11. Insole; 12. Anti-abrasion pad; 13. Threaded hole; 14. Threaded groove; 15. Rubber pad; 16. Circular groove; 17. Cylindrical pressure block; 18. Receiving cavity; 19. Strip plate; 20. Limiting block; 21. Stainless steel fixing screw. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0038] Example 1

[0039] Reference Figure 1-5These are lockable, slip-resistant, and wear-resistant leather shoes. The shoe body consists of a sole 1 and a heel 3 forming the main frame. The bottom of the sole 1 is connected to the heel 3 via a detachable structure. The top of the sole 1 and the upper 7 are manufactured using a one-piece molding process. Five rectangular arrays of shoelace holes 6 are longitudinally distributed at the front of the upper 7. The inner diameter of the shoelace holes 6 is 4.2mm to accommodate standard shoelaces. The right inner wall of the upper 7 extends to form a tongue 4, with the width of the tongue 4 accounting for 35% of the total width of the upper. Its surface is covered with a breathable mesh layer. The sole 1 is surrounded by a 2.5mm thick edge 2, and the edge 2 is joined to the sole 1 using a hot melt adhesive pressing process.

[0040] The anti-slip system consists of seven parallel first anti-slip grooves 8 on the bottom surface of the sole 1 and second anti-slip grooves 9 and third anti-slip grooves 10 on the bottom surface of the heel 3. The first anti-slip grooves 8 are 3.0 mm deep, with a groove spacing of 1.8 mm, and extend along the arch of the foot to the toe. The bottom surface of the heel 3 has four sets of second anti-slip grooves 9 and five sets of third anti-slip grooves 10. The second anti-slip grooves 9 are arranged at a 45° angle, and the third anti-slip grooves 10 are arranged in a vertically intersecting pattern. The groove depth is 2.5 mm, forming a three-dimensional anti-slip network.

[0041] The detachable connection mechanism includes four pre-set M4 threaded grooves 14 on the top of the heel 3, corresponding to the circular grooves 16 opened at the heel of the sole 1. The bottom of the circular grooves 16 has four threaded holes 13 coaxial with the threaded grooves 14, and each threaded hole 13 houses a 304 stainless steel fixing screw 21. An 8mm diameter limiting block 20 is welded to the top of the stainless steel fixing screw 21. A strip plate 19, 12mm long and 3mm wide, is vertically connected to the upper surface of the limiting block 20. A cylindrical pressure block 17 is embedded in the circular groove 16. Four fan-shaped receiving cavities 18, 4.5mm deep, are opened at the bottom of the pressure block 17 to completely accommodate the limiting block 20 and the strip plate 19. A 3mm thick rubber pad 15 is bonded to the top of the cylindrical pressure block 17, and the surface of the rubber pad 15 is embossed with the brand logo pattern.

[0042] The sole 1 uses a composite material formula: the main body is a blend of natural rubber (NR) and butadiene rubber (BR) in a 65:35 ratio, with the addition of 25% silicon carbide (SiC) wear-resistant particles, and is made by mixing in a 160℃ internal mixer. The heel 3 is made of TPU material by injection molding, with a Shore hardness of D72, and the surface is sprayed with a ceramic coating containing 40% alumina (Al2O3), with a coating thickness of 0.15mm.

[0043] The shoe's internal structure includes a removable insole 11, with a 0.8mm thick anti-friction pad 12 added to the heel area of ​​the insole 11. The anti-friction pad 12 is made of memory foam and is integrally molded with the insole 11 through a hot-pressing process. A strip-shaped perforation 5 is opened in the middle of the upper 7, extending to the position of the third shoelace eyelet 6. The perforation is 8mm wide, and the edge of the perforation is covered with an elastic fiber reinforcement layer.

[0044] During wearing, after untying the shoelaces, the front of the upper 7 is extended to a maximum opening angle of 15° through the strip hole 5, making it easier for the foot to put on. When the anti-slip components come into contact with a wet and slippery surface, the first anti-slip groove 8 generates lateral grip, and the interlocking structure of the second anti-slip groove 9 and the third anti-slip groove 10 produces a bidirectional interlocking effect. The measured coefficient of friction reaches 0.82 under 0.5μm water film conditions. When the heel 3 is worn and needs to be replaced, remove the insole 11 and lift the rubber pad 15. Rotate the limiting block 20 through the strip plate 19 to drive the stainless steel fixing screw 21 out of the threaded groove 14, thus completing the removal of the heel 3. When installing a new heel 3, align the threaded groove 14 with the threaded hole 13 and then reverse the operation to press the cylindrical pressure block 17 so that the rubber pad 15 is flush with the surface of the sole 1.

[0045] This implementation achieves functional integration through modular design, with each component achieving an IT7 level of precision. After 5,000 bending tests, the connection structure remains stable, the anti-slip components have a wear resistance life exceeding 2,000 kilometers of walking distance, and the heel can be replaced at least 8 times, effectively extending the overall lifespan of the shoe.

[0046] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A type of locking, anti-slip, and wear-resistant leather shoe, characterized in that, include: The sole (1) and heel (3) are provided. The bottom of the sole (1) is fixedly connected to the heel (3) through a detachable connecting mechanism. The top of the sole (1) is integrally formed with an upper (7). The front end of the upper (7) is provided with a strip hole (5). Multiple shoelace holes (6) are symmetrically distributed on both sides of the strip hole (5). The inner wall of the upper (7) is integrally formed with a tongue (4). The bottom surface of the sole (1) is provided with a first anti-slip groove (8) arranged in parallel, and the bottom surface of the heel (3) is provided with a second anti-slip groove (9) and a third anti-slip groove (10). The second anti-slip groove (9) and the third anti-slip groove (10) are distributed at a 60° intersection angle. The detachable connection mechanism includes a threaded hole (13) on the heel of the sole (1) and a threaded groove (14) on the top of the heel (3). The threaded hole (13) and the threaded groove (14) are coaxially connected by a stainless steel fixing screw (21). A limit block (20) is fixed on the top of the stainless steel fixing screw (21). A strip plate (19) is vertically connected to the limit block (20).

2. The locking, anti-slip, and wear-resistant leather shoes according to claim 1, characterized in that: The first anti-slip groove (8) has a depth of 3.0 mm and a groove spacing of 1.8 mm. The second anti-slip groove (9) and the third anti-slip groove (10) both have a depth of 2.5 mm. The second anti-slip groove (9) is arranged at a 45° angle.

3. The locking, anti-slip, and wear-resistant leather shoes according to claim 1 or 2, characterized in that: The heel (3) is made of TPU material with a Shore hardness of D72.

4. The locking, anti-slip, and wear-resistant leather shoes according to claim 1, characterized in that: The heel of the sole (1) is provided with a circular groove (16), and a cylindrical pressure block (17) is embedded in the circular groove (16). The bottom of the cylindrical pressure block (17) is provided with a receiving cavity (18), and the depth of the receiving cavity (18) is 4.5mm to completely accommodate the limiting block (20) and the strip plate (19).

5. The locking, anti-slip, and wear-resistant leather shoes according to claim 4, characterized in that: The top of the cylindrical pressure block (17) is bonded with a rubber pad (15), the rubber pad (15) is flush with the surface of the shoe sole (1), the rubber pad (15) is 3mm thick and has anti-slip texture pressed on its surface.

6. The locking, anti-slip, and wear-resistant leather shoes according to claim 1, characterized in that: The upper (7) has a removable insole (11) inside, and the heel part of the insole (11) has an integrally formed anti-abrasion pad (12).

7. The locking, anti-slip, and wear-resistant leather shoes according to claim 1, characterized in that: The length of the strip hole (5) extends to the position of the third shoelace hole (6), the width of the strip hole (5) is 8mm and the edge of the hole is covered with an elastic fiber reinforcement layer.

8. The locking, anti-slip, and wear-resistant leather shoes according to claim 1, characterized in that: The outer periphery of the sole (1) is covered with a 2.5mm thick TPU material edge (2), and the joint between the edge (2) and the sole (1) forms a 30° support angle.

9. The locking, anti-slip, and wear-resistant leather shoes according to claim 1, characterized in that: The stainless steel fixing screw (21) is of M4 specification, and the inner wall of the threaded groove (14) is provided with a thread structure that matches the stainless steel fixing screw (21).

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