An athletic shoe having a modular variable stiffness sole assembly

Abstract

The utility model relates to athletic shoes manufacturing technical field discloses a kind of athletic shoes with modular variable stiffness sole assembly, including vamp, the bottom of the vamp is fixedly connected with sole, the bottom of the sole is equipped with multiple groups of cylindrical mounting slot, locking sealing assembly is arranged in the cylindrical mounting slot, the locking sealing assembly includes cylindrical sleeve, the outer wall of the cylindrical sleeve is fixedly connected to the inner wall of the cylindrical mounting slot, the inner wall of the cylindrical sleeve is equipped with L-shaped guide slot, slidingly connected with slide column in the L-shaped guide slot.In the utility model, the cylindrical sleeve, L-shaped guide slot and slide column are set, the effect of pressing torsion quick and stable locking and cooperating sealing ring counterthrust eliminating mechanical virtual position is realized, the problem of existing technology that detachable sole is prone to structural loosening during intense exercise and produces awkward friction noise due to the existence of small sliding gap is solved.

Description

Technical Field

[0001] This utility model relates to the field of sports shoe manufacturing technology, and in particular to a sports shoe with a modular variable stiffness sole assembly. Background Technology

[0002] With the personalization of sports equipment, some sports shoes have begun to adopt a detachable sole module design, allowing users to replace support modules of different hardness according to the type of sports to adjust the local cushioning performance.

[0003] Existing modular soles typically use interference fits or simple plug-in structures to fix the stiffness adjustment modules inside the sole. However, this conventional connection method is prone to structural loosening when the user engages in strenuous activities such as running and jumping, due to the lack of a stable locking mechanism.

[0004] To meet the dimensional requirements of manual plug-and-play assembly, existing technologies inevitably introduce mechanical sliding gaps between modules and pre-drilled holes in the sole. Under multi-directional alternating stress, the modules may experience minute displacements within the holes, leading to relative sliding and collisions between components. This results in frictional noises in the sole, negatively impacting the user's wearing experience. Therefore, this invention proposes athletic shoes with modular variable stiffness sole components to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a sports shoe with a modular variable stiffness sole assembly, which aims to solve the problems of structural loosening of detachable soles during vigorous exercise and the embarrassing friction noise caused by the existence of tiny sliding gaps in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a sports shoe with a modular variable stiffness sole assembly, including an upper, a sole fixedly connected to the bottom of the upper, and multiple sets of cylindrical mounting grooves provided on the bottom of the sole, wherein a locking and sealing assembly is provided in the cylindrical mounting groove;

[0007] The locking and sealing assembly includes a cylindrical sleeve, the outer wall of which is fixedly connected to the inner wall of the cylindrical mounting groove. An L-shaped guide groove is provided on the inner wall of the cylindrical sleeve, and a sliding column is slidably connected inside the L-shaped guide groove. One end of the sliding column is fixedly connected to the side surface of the cylindrical body. The outer wall of the cylindrical body is slidably inserted into the inner wall of the cylindrical sleeve. An annular gasket is fixedly connected to the lower surface of the cylindrical body, and the top of the annular gasket abuts against the bottom end of the cylindrical sleeve.

[0008] As a further description of the above technical solution: the top of the annular gasket is provided with an annular groove, and an annular sealing ring is fixedly connected inside the annular groove, with the top of the annular sealing ring abutting against the bottom end of the cylindrical sleeve.

[0009] As a further description of the above technical solution: the L-shaped guide groove includes a vertical guide section and a horizontal locking section. The bottom of the vertical guide section penetrates the bottom end of the inner wall of the cylindrical sleeve, and the top of the vertical guide section is connected to the horizontal locking section.

[0010] As a further description of the above technical solution: the sliding column is in the shape of a chamfered cylinder, the outer diameter of the sliding column is smaller than the inner width of the vertical guide section, and the end of the horizontal locking section is set as a closed limiting end.

[0011] As a further description of the above technical solution: multiple sets of the cylindrical mounting grooves are distributed in a matrix array at the bottom of the shoe sole, and the outer diameter of the annular gasket is larger than the outer diameter of the cylindrical sleeve.

[0012] As a further description of the above technical solution: the lower surface of the annular gasket has multiple sets of anti-slip grooves, and the multiple sets of anti-slip grooves are radially arrayed along the bottom center of the annular gasket.

[0013] As a further description of the above technical solution: the outer diameter of the cylindrical body is slightly smaller than the inner diameter of the cylindrical sleeve, and a sliding clearance fit is formed between the cylindrical body and the cylindrical sleeve.

[0014] As a further description of the above technical solution: the central axis of the sliding column is perpendicular to the central axis of the cylindrical body.

[0015] As a further description of the above technical solution: the external height dimension of the cylindrical sleeve is equal to the internal depth dimension of the cylindrical mounting groove, and the top end face of the cylindrical sleeve abuts against the top of the inner wall of the cylindrical mounting groove.

[0016] As a further description of the above technical solution: the bottom outer surface of the sole is flush with the lower surface of the annular pad.

[0017] This utility model has the following beneficial effects:

[0018] 1. In this utility model, the cylindrical sleeve, L-shaped guide groove and sliding column are designed to achieve the effect of quick and stable locking by pressing and twisting, and the mechanical play is eliminated by the counter-thrust force of the sealing ring. This solves the problems of easy structural loosening of detachable shoe soles during vigorous exercise and embarrassing friction noise caused by the existence of small sliding gaps in the prior art.

[0019] 2. In this utility model, the annular gasket, annular groove and annular sealing ring are designed to achieve the physical dustproof and waterproof effect of lateral expansion under pressure and tight sealing of component joints. This solves the problem in the prior art that mud and dust can easily enter the interior through gaps during outdoor sports, causing structural wear and modules that are stuck and difficult to disassemble. Attached Figure Description

[0020] Figure 1 This is a front view of the athletic shoe with a modular variable stiffness sole assembly proposed in this utility model;

[0021] Figure 2 This is a top view of the athletic shoe with a modular variable stiffness sole assembly proposed in this utility model.

[0022] Figure 3 This is a schematic diagram of the separation structure of the cylindrical sleeve and the cylindrical mounting groove of the sports shoe with modular variable stiffness sole assembly proposed in this utility model.

[0023] Figure 4 This is a schematic diagram of the separation structure of the cylindrical body and cylindrical sleeve of the sports shoe with modular variable stiffness sole assembly proposed in this utility model.

[0024] Figure 5 This is a top sectional view of the cylindrical sleeve and cylindrical torso of the sports shoe with modular variable stiffness sole assembly proposed in this utility model.

[0025] Figure 6 This is a cross-sectional view of the cylindrical sleeve of a sports shoe with a modular variable stiffness sole assembly proposed in this utility model.

[0026] Figure 7 This is a schematic diagram of the annular gasket and annular sealing ring of a sports shoe with a modular variable stiffness sole assembly proposed in this utility model.

[0027] Legend:

[0028] 1. Upper; 2. Sole; 3. Cylindrical mounting groove; 4. Cylindrical sleeve; 5. Cylindrical body; 6. L-shaped guide groove; 7. Sliding column; 8. Annular groove; 9. Annular gasket; 10. Annular sealing ring. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figure 1 , Figure 2 An embodiment of this utility model provides a sports shoe with a modular variable stiffness sole assembly, including an upper 1, a sole 2 fixedly connected to the bottom of the upper 1, and multiple sets of cylindrical mounting grooves 3 opened on the bottom of the sole 2. The multiple sets of cylindrical mounting grooves 3 are arranged in a matrix array on the bottom of the sole 2 to provide uniform force support distribution for the sole 2. A locking and sealing assembly is provided in the cylindrical mounting grooves 3.

[0031] Reference Figures 3-5 The locking and sealing assembly includes a cylindrical sleeve 4, the outer wall of which is fixedly connected to the inner wall of a cylindrical mounting groove 3. An L-shaped guide groove 6 is formed on the inner wall of the cylindrical sleeve 4. The L-shaped guide groove 6 includes a vertical guide section and a horizontal locking section. The bottom of the vertical guide section penetrates the bottom end of the inner wall of the cylindrical sleeve 4, and the top of the vertical guide section communicates with the horizontal locking section. The end of the horizontal locking section is set as a closed limiting end to stably limit the position of the component after it has slid into place. A sliding post 7 is slidably connected inside the L-shaped guide groove 6. The sliding post 7 is a chamfered cylinder, and its outer diameter is smaller than that of the vertical guide groove 3. The internal width of the entry section is designed to ensure that the sliding column 7 can slide smoothly. One end of the sliding column 7 is fixedly connected to the side surface of the cylindrical body 5. The outer wall of the cylindrical body 5 is slidably inserted into the inner wall of the cylindrical sleeve 4. The outer diameter of the cylindrical body 5 is slightly smaller than the inner diameter of the cylindrical sleeve 4. A sliding clearance fit is formed between the cylindrical body 5 and the cylindrical sleeve 4. The central axis of the sliding column 7 is perpendicular to the central axis of the cylindrical body 5. The outer height of the cylindrical sleeve 4 is equal to the inner depth of the cylindrical mounting groove 3. The top end face of the cylindrical sleeve 4 abuts against the top of the inner wall of the cylindrical mounting groove 3.

[0032] Reference Figure 6 , Figure 7 An annular gasket 9 is fixedly connected to the lower surface of the cylindrical body 5. The outer diameter of the annular gasket 9 is larger than that of the cylindrical sleeve 4. Multiple anti-slip grooves are formed on the lower surface of the annular gasket 9. The multiple anti-slip grooves are radially arrayed along the bottom center of the annular gasket 9 to increase the surface friction when rotating. An annular groove 8 is formed on the top of the annular gasket 9. An annular sealing ring 10 is fixedly connected inside the annular groove 8. The top of the annular gasket 9 abuts against the bottom end of the cylindrical sleeve 4. At the same time, the top of the annular sealing ring 10 abuts against the bottom end of the cylindrical sleeve 4. Thus, the annular sealing ring 10 fills the gap and achieves a tight physical seal. The bottom outer surface of the sole 2 is flush with the lower surface of the annular gasket 9.

[0033] Working principle: The user pinches the annular pad 9 with their hand, using the anti-slip grooves on the lower surface of the annular pad 9 to increase friction when applying force. The cylindrical body 5 is aligned with the opening of the cylindrical sleeve 4 at the bottom of the sole 2, and the angle is slightly rotated to ensure that the sliding post 7, fixed to the side surface of the cylindrical body 5, is precisely aligned with the bottom opening of the vertical guide section of the L-shaped guide groove 6. The user then applies inward pressure to the annular pad 9, causing the cylindrical body 5 to slide into the inner wall of the cylindrical sleeve 4, and the sliding post 7 to slide smoothly inward along the vertical guide section.

[0034] When the slide column 7 slides to the end of the vertical guide section, that is, to the corner position where it connects with the horizontal locking section, the top of the annular sealing ring 10, which is installed inside the annular groove 8 at the top of the annular gasket 9, just contacts and abuts against the bottom end of the cylindrical sleeve 4. At this time, the user continues to apply inward pressure and twists the annular gasket 9, causing the slide column 7 to slide into the horizontal locking section of the L-shaped guide groove 6 until the slide column 7 slides against the closed limit end of the horizontal locking section, completing the mechanical position limit locking.

[0035] During the aforementioned torsional locking process, due to the continuous downward pressure on the bottom end of the cylindrical sleeve 4, the annular sealing ring 10 located in the annular groove 8 undergoes strong axial compression deformation. The flattened annular sealing ring 10 is forced to expand laterally, tightly filling the gap between the annular gasket 9 and the bottom end of the cylindrical sleeve 4, forming an extremely dense physical sealing barrier. This effectively prevents dust, mud, and moisture from penetrating into the interior of the L-shaped guide groove 6 during outdoor activities, avoiding mechanical jamming caused by mud and sand accumulation.

[0036] When the exercise is over and the module needs to be disassembled for cleaning or replacement, the user only needs to press the annular gasket 9 inward to overcome the elastic pushing force of the annular seal ring 10, release the friction engagement state, then rotate the annular gasket 9 in the opposite direction to make the slide column 7 return from the horizontal locking section to the top of the vertical guide section, and finally pull out the cylindrical body 5 to easily complete the disassembly.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An athletic shoe having a modular variable stiffness sole assembly, comprising an upper (1), characterized in that: The bottom of the upper (1) is fixedly connected to the sole (2), and the bottom of the sole (2) is provided with multiple sets of cylindrical mounting grooves (3), and a locking and sealing component is provided in the cylindrical mounting grooves (3). The locking and sealing assembly includes a cylindrical sleeve (4), the outer wall of which is fixedly connected to the inner wall of the cylindrical mounting groove (3). An L-shaped guide groove (6) is provided on the inner wall of the cylindrical sleeve (4). A sliding column (7) is slidably connected inside the L-shaped guide groove (6). One end of the sliding column (7) is fixedly connected to the side surface of the cylindrical body (5). The outer wall of the cylindrical body (5) is slidably inserted into the inner wall of the cylindrical sleeve (4). An annular gasket (9) is fixedly connected to the lower surface of the cylindrical body (5). The top of the annular gasket (9) abuts against the bottom end of the cylindrical sleeve (4).

2. A sports shoe with a modular variable stiffness sole assembly according to claim 1, characterized in that: The top of the annular gasket (9) is provided with an annular groove (8), and an annular sealing ring (10) is fixedly connected inside the annular groove (8). The top of the annular sealing ring (10) abuts against the bottom end of the cylindrical sleeve (4).

3. A sports shoe with a modular variable stiffness sole assembly according to claim 2, characterized in that: The L-shaped guide groove (6) includes a vertical guide section and a horizontal locking section. The bottom of the vertical guide section penetrates the bottom of the inner wall of the cylindrical sleeve (4), and the top of the vertical guide section is connected to the horizontal locking section.

4. A sports shoe with a modular variable stiffness sole assembly according to claim 3, characterized in that: The sliding column (7) is a chamfered cylinder. The outer diameter of the sliding column (7) is smaller than the inner width of the vertical guide section. The end of the horizontal locking section is set as a closed limiting end.

5. A sports shoe with a modular variable stiffness sole assembly according to claim 2, characterized in that: Multiple sets of cylindrical mounting grooves (3) are arranged in a matrix array at the bottom of the shoe sole (2), and the outer diameter of the annular gasket (9) is larger than the outer diameter of the cylindrical sleeve (4).

6. A sports shoe with a modular variable stiffness sole assembly according to claim 1, characterized in that: The lower surface of the annular gasket (9) has multiple sets of anti-slip grooves, which are arranged radially along the bottom center of the annular gasket (9).

7. A sports shoe with a modular variable stiffness sole assembly according to claim 1, characterized in that: The outer diameter of the cylindrical body (5) is slightly smaller than the inner diameter of the cylindrical sleeve (4), and a sliding clearance fit is formed between the cylindrical body (5) and the cylindrical sleeve (4).

8. A sports shoe with a modular variable stiffness sole assembly according to claim 1, characterized in that: The central axis of the sliding column (7) is perpendicular to the central axis of the cylindrical body (5).

9. A sports shoe with a modular variable stiffness sole assembly according to claim 1, characterized in that: The external height dimension of the cylindrical sleeve (4) is equal to the internal depth dimension of the cylindrical mounting groove (3), and the top end face of the cylindrical sleeve (4) abuts against the top of the inner wall of the cylindrical mounting groove (3).

10. A sports shoe with a modular variable stiffness sole assembly according to claim 1, characterized in that: The bottom outer surface of the sole (2) is flush with the lower surface of the annular pad (9).

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