A pulley device, a front-rear linkage pulley device and a sole of a running-away shoe

Abstract

The utility model discloses a pulley device, front and rear linkage pulley device and shoes sole of running away, belong to the footwear technical field. Pulley device includes first shell, first pulley assembly and telescopic part, and telescopic part includes control assembly, first sliding block and elastic piece, and first sliding block and elastic piece are accommodated in first sliding chamber, and first sliding block is equipped with connecting piece, one end of elastic piece is connected with first sliding block, and the other end is connected with first sliding chamber rear end, and control assembly is connected with first shell rear end, and its one end passes through first shell and is connected with connecting piece, and pushes control assembly can drive first sliding block and moves in first sliding chamber, makes first pulley and extends or retracts to first pulley chamber. The pulley device, front and rear linkage pulley device and shoes sole of running away provided by the utility model are convenient to assemble, easy to operate, and the safety factor is high, and can be applicable to different people and use.

Description

Technical Field

[0001] This utility model belongs to the field of footwear technology, and specifically relates to a pulley device, a front and rear linkage pulley device, and a heel sole for roller shoes. Background Technology

[0002] Heeled skates, as an innovative type of roller skate, combine the comfort of athletic shoes with the agility of skateboards and roller skates. They are suitable not only for leisure and recreational activities and sports, but also as a convenient means of short-distance transportation, making them popular across all age groups. Most Heeled skates on the market currently employ a convenient button design; users can easily control the extension and retraction of the wheels by pressing a button on the heel. However, the button extension on some Heeled skates is excessively long, affecting not only aesthetics but also potentially posing safety hazards. Furthermore, the complex internal pulley mechanisms and numerous parts in some Heeled skates lead to cumbersome assembly processes, hindering large-scale, high-efficiency industrial production.

[0003] Therefore, how to optimize the internal structure design of Heely shoes while ensuring functionality, making them simpler, more aesthetically pleasing, and easier to assemble, is a problem that needs to be solved in the current research and development process of Heely shoes. Utility Model Content

[0004] The purpose of this invention is to provide a pulley device, a front and rear linkage pulley device, and a roller shoe to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: The first aspect includes a first housing, a first pulley assembly, and a telescopic component; The first housing includes a first sliding chamber and a first pulley chamber arranged side by side on both sides of the first sliding chamber. The first sliding chamber and the first pulley chamber share a first sidewall, and a first groove is provided on the first sidewall. The first pulley assembly includes a first pulley shaft and first pulleys respectively arranged at both ends of the first pulley shaft. The first pulleys are housed in the first pulley chamber. The telescopic component includes a control assembly, a first sliding block, and an elastic element. The first sliding block and the elastic element are housed in the first sliding cavity. The first sliding block is provided with a connecting element. One end of the elastic element is connected to the first sliding block, and the other end is connected to the front end of the first sliding chamber. The control component passes through the first housing and is connected to the connector. The first sliding block is provided with a first sliding groove, and the first pulley shaft is horizontally disposed in the first groove and the first sliding groove; Pushing the control component can drive the first sliding block to move within the first sliding cavity, and cause the first pulley shaft to move along the first groove and the first sliding slot, thereby enabling the first pulley to extend or retract into the first pulley cavity.

[0006] Preferably, the control component includes a rotary cam, a sleeve, and a push rod, wherein the push rod is slidably connected to the sleeve, one end of the rotary cam is connected to a connecting piece, and the other end is placed on the sleeve and connected to the push rod; The sleeve is provided with a plurality of guide members evenly distributed around its interior circumference. A first guide groove is provided between the plurality of guide members. A second guide groove is provided on each guide member. A slot and a guide ramp are provided on the end of each guide member near the rotating cam. The slot and the guide ramp have the same inclination angle. A plurality of toothed columns are evenly distributed around the outer circumference of the rotating cam. The toothed columns are connected to the slot or the first guide groove. The outer circumference of the push rod is provided with multiple protrusions, which are slidably connected to the sleeve. The push rod is provided with a ring of teeth at one end near the sleeve, which are adapted to the toothed column and connected to the toothed column.

[0007] Preferably, the sleeve has an outer edge at one end near the first outer shell, and the first outer shell has a limiting groove at one end near the sleeve, with the outer edge engaging in the limiting groove.

[0008] Preferably, the protrusion includes a first protrusion and a second protrusion, the second protrusion being longer than the first protrusion. The push rod has at least one set of symmetrical second protrusions, and the sleeve has at least one set of symmetrical second guide grooves extending through the sleeve along its own length to fit the second protrusions. Preferably, the first sliding groove is an oblique groove, and the first sliding groove includes a first oblique groove and a first arc-shaped groove connected sequentially from front to back.

[0009] Secondly, this utility model provides a front and rear linkage pulley device, including the aforementioned pulley device, a second housing, a second pulley assembly, a second sliding block, and a linkage rod; The second housing includes a second sliding chamber and a second pulley chamber, the second sliding chamber and the second pulley chamber share a second sidewall, and the second sidewall is provided with a second groove; the second pulley assembly includes a second pulley shaft and second pulleys respectively disposed at both ends of the second pulley shaft, and the second pulleys are housed in the second pulley chamber; The second sliding block is housed in the second sliding cavity, and the second sliding block is provided with a second sliding groove. The second pulley shaft is transversely disposed in the second groove and the second sliding groove. One end of the linkage rod passes through the first housing and the elastic element and is connected to the first sliding block, and the other end passes through the second housing and is connected to the second sliding block; Pushing the control component can drive the second sliding block to move within the second sliding chamber, thereby moving the second pulley assembly along the second groove and the second sliding slot, allowing the second pulley to extend or retract into the second pulley chamber.

[0010] Preferably, the two ends of the linkage rod are respectively engaged or threaded with the first sliding block and the second sliding block.

[0011] Preferably, one end of the linkage rod is engaged with the first sliding block or the second sliding block, and the other end is threadedly connected to the first sliding block or the second sliding block.

[0012] Preferably, the second sliding groove is an inclined groove, and the second sliding groove includes a second inclined groove, a second arc-shaped groove and a stop groove connected in sequence from front to back.

[0013] Thirdly, this utility model provides a heeled shoe sole, including the aforementioned pulley device or front and rear wheel linkage pulley device, and also includes a sole body. The pulley device or front and rear wheel linkage pulley device is installed in the sole body. The rear end of the sole body is provided with an opening, and one end of the telescopic component extends out of the sole body along the opening.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention optimizes the structure of the telescopic component of existing pulley devices. By using a flat connector between the control component and the first sliding block, the assembly efficiency of the pulley device is improved, thereby enhancing overall production efficiency and facilitating mass production. Simultaneously, this structure allows for a more reasonable setting of the length of the push rod extending from the sleeve. Furthermore, by adding a second protrusion, the contact area between the push rod and the protrusion is increased, further enhancing the stability of the push rod during sliding and improving the pushing effect.

[0015] This invention improves upon the push-button structure of a ballpoint pen by increasing the size of the control components, effectively increasing the force-bearing area during operation, enhancing the pushing effect, and enabling users to more easily extend or retract the pulley.

[0016] The front and rear linkage pulley device of this invention achieves the coordinated extension or retraction of the first and second pulleys into their respective chambers via a linkage rod. This structure not only ensures the coordination and consistency of the pulleys during use, but also improves the overall stability and ease of operation of the device.

[0017] When the pulley device and linkage pulley device of this utility model are applied to the sole of Heely shoes, the optimized structure allows for a shorter extension of the control lever from the sole, further enhancing the overall aesthetics of the product.

[0018] In this invention, the dimensions of the control component and its connection method with the first slider have been adjusted, but the overall function and response sensitivity of the pulley device have not been affected. On the contrary, the optimized structure, while ensuring the stability and continuity of pulley operation, further improves the ease of use and comfort, taking into account both practicality and user experience, and demonstrating good application prospects and promotional value. Attached Figure Description

[0019] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0020] In the attached diagram: Figure 1 This is a schematic diagram of the pulley system. Figure 2 It was an explosion of the pulley system. Figure 1 ; Figure 3 It was an explosion of the pulley system. Figure 2 ; Figure 4 This is a schematic diagram of the sleeve structure; Figure 5 A cross-sectional view of the first pulley in the pulley device locked in the retracted position; Figure 6 A cross-sectional view of the first pulley in the pulley device locked in the extended position; Figure 7 This is a schematic diagram of the front and rear linkage pulley device; Figure 8 The explosion was caused by the front and rear linkage pulley system. Figure 1 ; Figure 9 The explosion was caused by the front and rear linkage pulley system. Figure 2 ; Figure 10 This is a cross-sectional schematic diagram of the pulleys locked in the retracted position in the front and rear linkage pulley device; Figure 11 This is a cross-sectional schematic diagram of the pulleys locked in the extended position in the front and rear linkage pulley device; Figure 12 This is a schematic diagram of the linkage rod in the front and rear linkage pulley device; Figure 13 This is a schematic diagram of the sole structure of a Heely shoe.

[0021] Explanation of reference numerals in the attached figures: 1. First outer shell; 11. First sliding chamber; 12. First pulley chamber; 13. First side wall; 131. First groove; 14. Limiting groove; 15. First sliding cover; 16. First baffle; 17. Fixing component; 2. First pulley assembly; 21. First pulley shaft; 22. First pulley; 3. Telescopic component; 31. Control assembly; 32. First sliding block; 33. Elastic element; 321. Connector; 322. First sliding groove; 3221. First inclined groove; 3222. First arc-shaped groove; 311. Rotary cam; 312. Sleeve; 313. Push rod; 3121. Guide element; 3122. First guide groove; 31211. Second guide groove; 31212. Slot; 31213. Guide ramp; 3111. Tooth column; 3123. Outer edge; 3131. Protrusion; 3132. Tooth head; 31311. First protrusion; 31312. Second protrusion; 4. Second outer shell; 41. Second sliding chamber; 42. Second pulley chamber; 43. Second side wall; 431. Second groove; 44. Second sliding cover; 45. Second baffle; 5. Second pulley assembly; 51. Second pulley shaft; 52. Second pulley; 6. Second sliding block; 61. Second sliding groove; 611. Second inclined groove; 612. Second arc-shaped groove; 613. Stop groove; 7. Linkage rod; 71. Snap-fit ​​plate; 72. Snap-fit ​​groove; 73. Internal threaded opening; 8. The sole itself. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] In this utility model, the directional terms used, such as "front end", "rear end", "upper end", "lower end", "left", and "right", are all determined based on the actual use position of the pulley device. For example, when the pulley device is installed on the heel of a shoe, the part where the hand presses the lever is the rear end of the pulley device, i.e., the direction of the heel of the shoe, and the lower end of the pulley device is the direction of the sole of the shoe.

[0027] Firstly, such as Figure 1-6 As shown, this utility model provides a pulley device, including a first housing 1, a first pulley assembly 2, and a telescopic component 3; the first housing 1 includes a first sliding chamber 11 and first pulley chambers 12 arranged side by side on both sides of the first sliding chamber 11, the first sliding chamber 11 and the first pulley chambers 12 share a first sidewall 13, the first sidewall 13 is provided with a first groove 131, and the first sliding chamber 11 communicates with the first pulley chamber 12 through the first groove 131 of the first sidewall 13; the first pulley assembly 2 includes a first pulley shaft 21 and first pulleys 22 respectively arranged at both ends of the first pulley shaft 21, the first pulleys 22 being housed in the first pulley chamber 12; The telescopic component 3 includes a control component 31, a first sliding block 32, and an elastic element 33. The first sliding block 32 and the elastic element 33 are housed in the first sliding chamber 11. The first sliding block 32 is provided with a connector 321. The first sliding block 32 and the connector 321 can be integrally connected or detachably connected, preferably integrally connected. One end of the elastic element 33 is connected to the first sliding block 32, and the other end is connected to the front end of the first sliding chamber 11. The control component 31 passes through the first outer shell 1 and is connected to the connector 321. The first sliding block 32 is provided with a first sliding groove 322, and the first pulley shaft 21 is horizontally arranged in the first groove 131 and the first sliding groove 322; Pushing the control component 31 can drive the first sliding block 32 to move within the first sliding chamber 11, and drive the first pulley shaft 21 to move along the first groove 131 and the first sliding slot 322, so that the first pulley 22 can extend or retract into the first pulley chamber 12.

[0028] The control component 31 includes a rotary cam 311, a sleeve 312 and a push rod 313. The push rod 313 is slidably connected to the sleeve 312. One end of the rotary cam 311 is connected to the connector 321 of the first sliding block 32, and the other end is placed on the sleeve 312 and connected to the push rod 313. By adjusting the size of the sleeve 312 and the shape of the connector 321, the length of the push rod 213 extending out of the sleeve 312 can be adjusted accordingly. The sleeve 312 has a plurality of guide members 3121 evenly arranged in the circumference. A first guide groove 3122 is provided between the plurality of guide members 3121. The guide members 3121 have a second guide groove 31211. The end of the guide member 3121 near the rotary cam 311 has a slot 31212 and a guide ramp 31213. The inclination angles of the slot 31212 and the guide ramp 31213 are the same. The rotary cam 311 has a plurality of toothed pillars 3111 evenly arranged on the outer circumference. The toothed pillars 3111 are engaged with the slot 31212 or slidably connected with the first guide groove 3122 under the action of the guide ramp 31213. The push rod 313 has multiple protrusions 3131 circumferentially arranged on its outer side. These protrusions 3131 are slidably connected to the first guide groove 3122 and the second guide groove 31211. A ring of teeth 3132 is provided at one end of the push rod 313 near the sleeve 312. These teeth 3132 are adapted to the toothed column 3111, which is connected to the toothed column 3132. The toothed column 3111 can engage or abut against the toothed column 3132. Furthermore, the rotary cam 311 has a hollow structure and is sleeved with the connecting member 321. The connecting member 321 is flat and its shape is not particularly required; it can be cross-shaped, cylindrical, or other shapes, as long as its shape matches the hollow part of the rotary cam 311, allowing the rotary cam 311 to rotate stably without wobbling during operation. The flat connecting member 321 allows for a more reasonable setting of the length of the push rod 313 extending beyond the sleeve 312.

[0029] The sleeve 312 has an outer edge 3123 near the end of the first outer shell 1, and the first outer shell 1 has a limiting groove 14 near the end of the sleeve 312. The outer edge 3123 is engaged in the limiting groove, so that the sleeve 312 and the first outer shell 1 form a stable connection.

[0030] When the toothed post 3111 is connected to the slot 31212, the first pulley 21 extends out of the first pulley chamber 12 and is locked in the extended position; when the toothed post 3111 is located in the first guide groove 3122, the first pulley 21 retracts into the first pulley chamber 12 and is locked in the retracted position.

[0031] Furthermore, the protrusion 3131 includes a first protrusion 31311 and a second protrusion 31312, the second protrusion 31312 being longer than the first protrusion 31311. The push rod 313 is provided with at least one set of symmetrical second protrusions 31312, and the sleeve 312 is provided with at least one set of symmetrical second guide grooves 31211 extending through the sleeve 312 along its own length direction to fit with the second protrusions 31312. By providing the second protrusions 31312, the contact area between the protrusions 3131 and the second guide grooves 31211 can be increased, further enhancing the stability of the push rod 313 during sliding and improving the pushing effect.

[0032] Furthermore, the first sliding groove 322 is an inclined groove that slopes downwards from front to back. The first sliding groove 322 includes a first inclined groove 3221 and a first arc-shaped groove 3222 connected sequentially from front to back. The shapes of the first inclined groove 3221 and the first arc-shaped groove 3222 are adapted to the first pulley shaft 21 so that the first pulley shaft 21 can slide smoothly between the first inclined groove 3221 and the first arc-shaped groove 3222, thereby allowing the first pulley 22 to extend or retract into the first pulley chamber 12.

[0033] Furthermore, a first sliding cover 15 is slidably connected to the lower end of the first outer casing 1. The first sliding cover 15 is used to cover or expose the first pulley chamber 12. When the first pulley 22 retracts into the first pulley chamber 12, pushing the first sliding cover 15 to cover it can effectively prevent sand or other foreign objects from entering the first pulley chamber 12, thereby avoiding affecting the sliding performance of the first pulley 22. A first baffle 16 can also be detachably connected to the lower end of the first outer casing 1. The first baffle 16 is used to close the first sliding chamber 11 and prevent the first pulley shaft 21 from falling off.

[0034] The first sliding chamber 11 is provided with a fixing member 17 for fixing the elastic member 33. The fixing member 17 can be a fixing block or a fixing groove, and the elastic member 33 is preferably a compression spring.

[0035] The working process of the pulley device: When the pulley device is in its initial position, the first pulley 22 is housed in the first pulley chamber 12, and the toothed column 3111 of the rotating cam 311 is located in the first guide groove 3122.

[0036] In use, the user pushes the first sliding cover 15 to expose the first pulley 22; then pushes the push rod 313 to move the first sliding block 32 forward. At this time, the first pulley shaft 21 will move downward along the first inclined groove 3221 and the first groove 131 with the movement of the first sliding block 32, and then move to the first arc groove 3222. Under the obstruction of the first baffle 16, the first pulley shaft 21 will not fall and will be between the first baffle 16 and the first arc groove 3222. During this process, the rotating cam 311 will move out of the first guide groove 3122 and rotate. Finally, the push rod 313 is released, and under the rebound force of the elastic element 33, the rotating cam 311 rotates again. The toothed column 3111 of the rotating cam 311 will engage with the slot 31212 of the sleeve 312. Finally, the first pulley 21 extends out of the first pulley chamber 12 and is locked in the extended position.

[0037] After pushing the lever 313 again, the rotating cam 311 moves out of the slot 31212 and rotates. When the lever 313 is released, the first sliding block 32 moves backward under the rebound force of the spring. The first pulley shaft 21 slides from the first arc groove 3222 to the first inclined groove 3221 and moves upward along the first groove 131. Finally, it is stably limited to the top of the first inclined groove 3221, so that the first pulley 21 retracts into the first pulley chamber 12. During this process, the toothed column 3111 of the rotating cam 311 rotates again and enters the first guide groove 3122 along the guide ramp 31213, so that the first pulley 21 is locked in the retracted position.

[0038] The pulley device of this utility model improves the assembly efficiency of the pulley device through the connection structure between the control component 31 and the first sliding block 32, namely the flat connecting piece 321, thereby improving the overall production efficiency and facilitating large-scale production. Simultaneously, this structure allows for a more reasonable setting of the length of the push rod 313 extending out of the sleeve 312. Furthermore, by providing the second protrusion 31312, the contact area between the push rod 313 and the protrusion 3131 is increased, further enhancing the stability of the push rod 313 during sliding and improving the pushing effect.

[0039] Secondly, such as Figure 7-12 As shown, this utility model also provides a front and rear linkage pulley device, including a pulley device, a second housing 4, a second pulley assembly 5, a second sliding block 6 and a linkage rod 7; The second outer casing 4 includes a second sliding chamber 41 and a second pulley chamber 42. The second sliding chamber 41 and the second pulley chamber 42 share a second sidewall 43. The two sides of the second sliding chamber 41 are connected to the second pulley chamber 42 through the second sidewall 43. The second sidewall 43 is provided with a second groove 431. The second pulley assembly 5 includes a second pulley shaft 51 and second pulleys 52 respectively disposed at both ends of the second pulley shaft 51. The second pulleys 52 are housed in the second pulley chamber 42. The second sliding block 6 is housed in the second sliding chamber 41. The second sliding block 6 is provided with a second sliding groove 61. The second pulley shaft 51 is horizontally arranged in the second groove 431 and the second sliding groove 61. The first outer shell 1 has an opening at its front end, and the second outer shell 4 has an opening at its rear end. One end of the linkage rod 7 passes through the opening of the first outer shell 1 and the elastic element 33 and is connected to the first sliding block 32, and the other end passes through the opening of the second outer shell 4 and is connected to the second sliding block 6. Pushing the control component 31 can drive the first sliding block 32 to move within the first sliding chamber 11, and drive the first pulley shaft 21 to move along the first groove 131 and the first sliding groove 322, so that the first pulley 22 can extend or retract into the first pulley chamber 12; it can also drive the second sliding block 6 to move within the second sliding chamber 41, so that the second pulley assembly 5 can move along the second groove 431 and the second sliding groove 61, so that the second pulley 52 can extend or retract into the second pulley chamber 42.

[0040] The two ends of the linkage 7 are detachably connected to the first sliding block 32 and the second sliding block 6, respectively.

[0041] like Figure 10-12 As shown, in some embodiments, the two ends of the linkage rod 7 are respectively engaged with the first sliding block 32 and the second sliding block 6. Specifically, the two ends of the linkage rod 7 are provided with engagement plates 71, and the ends of the first sliding block 32 and the second sliding block 6 corresponding to the linkage rod 7 are provided with engagement grooves 72, and the engagement plates 71 are engaged with the engagement grooves 72.

[0042] In some embodiments, the two ends of the linkage rod 7 are threadedly connected to the first sliding block 32 and the second sliding block 6, respectively. Specifically, the linkage rod 7 is a screw with external threads at both ends, and the first sliding block 32 and the second sliding block 6 have an internal thread opening 73 corresponding to the external threads at one end corresponding to the linkage rod 7.

[0043] In some embodiments, one end of the linkage rod 7 is engaged with the first sliding block 32 or the second sliding block 6, and the other end is threadedly connected to the first sliding block 32 or the second sliding block 6.

[0044] The second sliding groove 61 is also an inclined groove that slopes downward from front to back. The second sliding groove 61 includes a second inclined groove 611, a second arc-shaped groove 612 and a stop groove 613 connected in sequence from front to back. The stop groove 613 is used to limit the movement distance of the second sliding block 6.

[0045] The second housing 4 is slidably connected to a second sliding cover 44, which is used to cover or expose the second pulley chamber 42. When the second pulley 52 retracts into the second pulley chamber 42, pushing the second sliding cover 44 to cover it can effectively prevent sand or other foreign objects from entering the second pulley chamber 42, thereby avoiding affecting the sliding performance of the second pulley 52. ​​The second housing 4 is detachably connected to a second baffle 45, which is used to close the second sliding chamber 41 and prevent the second pulley shaft 51 from falling off.

[0046] When the toothed column 3111 is connected to the slot 31212, the first pulley 22 and the second pulley 52 are locked in the extended position; after the toothed column 3111 is connected to the first guide groove 3122 under the action of the guide ramp 31213, the first pulley 22 and the second pulley 52 are locked in the retracted position. Working process of the front and rear linkage pulley device: When the pulley device is in its initial position, the first pulley 22 is housed in the first pulley chamber 12, the second pulley 52 is housed in the second pulley chamber 42, and the toothed column 3111 of the rotating cam 311 is located in the first guide groove 3122.

[0047] In use, the user pushes the first sliding cover 15 and the second sliding cover 44 to expose the first pulley 22 and the second pulley 52; then presses the lever 313, causing the first sliding block 32 to move forward and the linkage rod 7 and the second sliding block 6 to move forward. At this time, the first pulley shaft 21 will move downward along the first inclined groove 3221 and the first groove 131 with the movement of the first sliding block 32, and then move to the first arc-shaped groove 3222. Under the limiting action of the first baffle 16, the first pulley shaft 21 will not fall off and will be stably located between the first baffle 16 and the first arc-shaped groove 3222; and the second pulley shaft 51 will also move downward along the second inclined groove 611 and the second groove 431 with the movement of the second sliding block 6, and then move to the second arc-shaped groove 612. Under the limiting action of the second baffle 45 ... second pulley shaft 51 will move downward along the second inclined groove 611 and the second groove 431, and then move to the second arc-shaped groove 612. The second pulley shaft 51 will not fall off and will be stably positioned between the second baffle 45 and the second arc-shaped groove 612. During this process, the rotating cam 311 will move out of the first guide groove 3122 and rotate. Finally, the lever 313 is released, and under the rebound force of the elastic element 33, the rotating cam 311 rotates again. The toothed post 3111 of the rotating cam 311 engages with the slot 31212 of the sleeve. Finally, the first pulley 22 extends out of the first pulley chamber 12, the second pulley 52 extends out of the second pulley chamber 42, and the first pulley 22 and the second pulley 52 are locked in the extended position.

[0048] After pushing the lever 313 again, the rotating cam 311 moves out of the slot 31212 and rotates. Releasing the lever 313 causes the first sliding block 32 to move backward under the spring's rebound force, driving the linkage rod 7 and the second sliding block 6 to move backward. The first pulley shaft 21 slides from the first arc-shaped groove 3222 to the first inclined groove 3221 and moves upward along the first groove 131, finally being stably restrained at the top of the first inclined groove 3221. The first pulley 21 retracts into the first pulley chamber. 12; The corresponding second pulley shaft 51 will slide from the second arc groove 612 to the second inclined groove 611, and move upward along the second groove 431, and finally be stably limited at the top of the second inclined groove 611. The second pulley 51 retracts into the fourth chamber 41; while the toothed column 3111 of the rotating cam 311 rotates again during this process, and enters the first guide groove 3122 along the guide ramp 31213, finally locking the first pulley 21 and the second pulley 51 in the retracted position.

[0049] The front and rear linkage pulley device of this invention achieves the coordinated extension or retraction of the first and second pulleys into their respective chambers via a linkage rod. This structure not only ensures the coordination and consistency of the pulleys during use, but also improves the overall stability and ease of operation of the device.

[0050] Thirdly, such as Figure 13As shown, this utility model also provides a walking shoe sole, including the above-mentioned pulley device or the above-mentioned front and rear linkage pulley device, and also includes a shoe sole body 8. The pulley device or the front and rear linkage pulley device is installed inside the shoe sole body 8. The rear end of the shoe sole body 8 is provided with an opening. One end of the telescopic member 3 extends out of the shoe sole body 8 along the opening. Specifically, the push rod 313 extends out of the shoe sole body 8.

[0051] The heeled shoe sole provided by this utility model, by adjusting the size of the control component 31 and its connection method with the first sliding block 32, shortens the length of the push rod 313 extending out of the sole body, thereby improving the aesthetics of the heeled shoe sole without affecting its normal use. It has good application prospects and promotional value.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A pulley device, characterized in that, It includes a first housing (1), a first pulley assembly (2), and a telescopic component (3); The first outer shell (1) includes a first sliding chamber (11) and a first pulley chamber (12) arranged side by side on both sides of the first sliding chamber (11). The first sliding chamber (11) and the first pulley chamber (12) share a first sidewall (13). A first groove (131) is provided on the first sidewall (13). The first pulley assembly (2) includes a first pulley shaft (21) and first pulleys (22) respectively arranged at both ends of the first pulley shaft (21). The first pulleys (22) are housed in the first pulley chamber (12). The telescopic component (3) includes a control component (31), a first sliding block (32) and an elastic element (33). The first sliding block (32) and the elastic element (33) are housed in the first sliding chamber (11). The first sliding block (32) is provided with a connector (321). One end of the elastic element (33) is connected to the first sliding block (32), and the other end is connected to the front end of the first sliding chamber (11). The control component (31) passes through the first outer shell (1) and is connected to the connector (321). The first sliding block (32) is provided with a first sliding groove (322), and the first pulley shaft (21) is horizontally arranged in the first groove (131) and the first sliding groove (322); Pushing the control component (31) can drive the first sliding block (32) to move within the first sliding chamber (11) and drive the first pulley shaft (21) to move along the first groove (131) and the first sliding groove (322), thereby enabling the first pulley (22) to extend or retract into the first pulley chamber (12).

2. The pulley device according to claim 1, characterized in that, The control component (31) includes a rotary cam (311), a sleeve (312) and a push rod (313). The push rod (313) is slidably connected to the sleeve (312). One end of the rotary cam (311) is connected to the connector (321), and the other end is placed on the sleeve (312) and connected to the push rod (313). The sleeve (312) is provided with a plurality of guide members (3121) evenly arranged in the circumferential direction. A first guide groove (3122) is provided between the plurality of guide members (3121). A second guide groove (31211) is provided on the guide member (3121). A slot (31212) and a guide ramp (31213) are provided on one end of the guide member (3121) near the rotary cam (311). The inclination angles of the slot (31212) and the guide ramp (31213) are the same. A plurality of toothed pillars (3111) are evenly arranged on the outer circumference of the rotary cam (3111). The toothed pillars (3111) are connected to the slot (31212) or the first guide groove (3122). The push rod (313) is provided with a plurality of protrusions (3131) on its outer circumference. The protrusions (3131) are slidably connected to the sleeve (312). The push rod (313) is provided with a ring of teeth (3132) near the end of the sleeve (312). The teeth (3132) are adapted to the toothed column (3111). The toothed column (3111) is connected to the teeth (3132).

3. The pulley device according to claim 2, characterized in that, The sleeve (312) has an outer edge (3123) near the end of the first outer shell (1), and the first outer shell (1) has a limiting groove (14) near the end of the sleeve (312). The outer edge (3123) is engaged in the limiting groove.

4. The pulley device according to claim 2, characterized in that, The protrusion (3131) includes a first protrusion (31311) and a second protrusion (31312), the second protrusion (31312) being longer than the first protrusion (31311). The push rod (313) is provided with at least one set of symmetrical second protrusions (31312). The sleeve (312) is provided with at least one set of symmetrical second guide grooves (31211) that penetrate the sleeve (312) along its own length direction to fit the second protrusions (31312).

5. The pulley device according to claim 1, characterized in that, The first sliding groove (322) is an inclined groove, and the first sliding groove (322) includes a first inclined groove (3221) and a first arc groove (3222) connected from front to back.

6. A front-to-back linkage pulley device, characterized in that, It includes the pulley device as described in any one of claims 1-5, the second housing (4), the second pulley assembly (5), the second sliding block (6), and the linkage rod (7); The second outer casing (4) includes a second sliding chamber (41) and a second pulley chamber (42), the second sliding chamber (41) and the second pulley chamber (42) share a second sidewall (43), the second sidewall (43) is provided with a second groove (431); the second pulley assembly (5) includes a second pulley shaft (51) and second pulleys (52) respectively disposed at both ends of the second pulley shaft (51), the second pulleys (52) are housed in the second pulley chamber (42); The second sliding block (6) is housed in the second sliding chamber (41), and the second sliding block (6) is provided with a second sliding groove (61). The second pulley shaft (51) is horizontally arranged in the second groove (431) and the second sliding groove (61). One end of the linkage rod (7) passes through the first outer shell (1) and the elastic element (33) and is connected to the first sliding block (32), and the other end passes through the second outer shell (4) and is connected to the second sliding block (6); Pushing the control component (31) can drive the second sliding block (6) to move within the second sliding chamber (41), thereby causing the second pulley assembly (5) to move along the second groove (431) and the second sliding groove (61), so that the second pulley (52) can extend or retract into the second pulley chamber (42).

7. The front and rear linkage pulley device according to claim 6, characterized in that, The two ends of the linkage rod (7) are respectively engaged or threaded with the first sliding block (32) and the second sliding block (6).

8. The front and rear linkage pulley device according to claim 6, characterized in that, One end of the linkage rod (7) is engaged with the first sliding block (32) or the second sliding block (6), and the other end is threadedly connected to the first sliding block (32) or the second sliding block (6).

9. The front and rear linkage pulley device according to claim 6, characterized in that, The second sliding groove (61) is an inclined groove. The second sliding groove (61) includes a second inclined groove (611), a second arc-shaped groove (612), and a stop groove (613) connected sequentially from front to back.

10. A heeled shoe sole, characterized in that, The device includes the pulley device according to any one of claims 1-5 or the front-to-back linkage pulley device according to any one of claims 6-9, and also includes a sole body (8). The pulley device or the front-to-back linkage pulley device is installed inside the sole body (8). The rear end of the sole body (8) is provided with an opening, and one end of the telescopic member (3) extends out of the sole body (8) along the opening.

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