Snowboard binding

Abstract

The present application relates to a ski boot positioning device, comprising a fixing device, a rear clamping mechanism and a releasing assembly. The fixing device comprises a base and a supporting assembly, the base is used for engaging with a ski board and comprises a front side and a rear side, the supporting assembly is connected to the rear side and comprises a slot; the rear clamping mechanism comprises a braking assembly and a positioning assembly, the braking assembly is arranged on the supporting assembly and comprises a braking piece corresponding to the slot and a push block, the braking piece is movable between a locking position and a releasing position, the push block is arranged on a side of the braking piece away from the slot, the positioning assembly is used for arranging a ski boot and comprises a positioning buckle; the releasing assembly is arranged on the fixing device and comprises a flexible wire and an operating piece, the operating piece can be externally operated to pull the flexible wire to drive the push block to move away from a side of the braking piece, allowing the braking piece to move from the locking position to the releasing position.

Description

Technical Field

[0001] This invention relates to ski boots, and more particularly to a ski boot positioning device. Background Technology

[0002] In recent years, skiing has become increasingly popular, becoming one of the most popular recreational and sporting activities. When skiing, users need to wear ski boots and attach bindings to their skis to prevent the skis from slipping off during skiing. However, existing bindings consist of multiple straps that are fastened to the ski boots, with the tightness adjusted via buckles. This is inconvenient to put on and take off, and the adjustment process is relatively complicated, inconvenient, and time-consuming. These straps also result in poor comfort, and the effectiveness of foot positioning is affected by individual adjustment skills, indicating a significant deficiency that urgently needs improvement.

[0003] Therefore, it is necessary to provide a novel and progressive ski boot positioning device to solve the above-mentioned problems. Summary of the Invention

[0004] The main objective of this invention is to provide a ski boot positioning device that allows for quick on / off and provides excellent positioning stability.

[0005] To achieve the above objectives, the present invention provides a ski boot positioning device, comprising: a fixing device, a rear locking mechanism, and a release component. The fixing device includes a base and a support component. The base is for engaging and positioning a ski and includes a front side and a rear side. The support component is connected to the rear side and includes a slot. The rear locking mechanism includes a braking component and a positioning component. The braking component is disposed on the support component and includes a braking element corresponding to the slot and a push block. The braking element is movable between a locked position and a released position. The push block is disposed on the side of the braking element away from the slot. The positioning component is disposed on a ski boot and includes a positioning buckle. When the... When the positioning buckle is inserted into the slot, the braking member can move from the release position to the locking position and interfere with the positioning buckle in one insertion direction of the slot, and the push block abuts against the braking member and restricts the movement of the braking member; the release assembly is provided on the retainer and includes a flexible wire and an operating member, the flexible wire is connected to the push block and the operating member respectively, and the operating member can be operated externally to pull the flexible wire to drive the push block to move away from the braking member, allowing the braking member to move from the locking position to the release position.

[0006] As a preferred embodiment of the above technical solution, the braking assembly further includes at least one elastic member, which is connected between the push block and the braking member to give the push block and the braking member a tendency to move towards each other.

[0007] As a preferred embodiment of the above technical solution, the braking assembly further includes a set of seats, a first pin and a second pin, the braking member is pivotally mounted on the set of seats, the first pin passes through the braking member on one side eccentric to the pivot, the second pin passes through and connects the push block and the set of seats, and the at least one elastic member is connected between the first pin and the second pin.

[0008] As a preferred embodiment of the above technical solution, when the brake is in the locked position, the pivot and the second pin have a first axial distance, and when the brake is in the released position, the pivot and the second pin have a second axial distance, wherein the first axial distance is less than the second axial distance.

[0009] As a preferred embodiment of the above technical solution, the braking member includes a first abutting surface and a second abutting surface that can abut against the push block, wherein the extending direction of the first abutting surface is different from the extending direction of the second abutting surface; when the braking member is in the locked position, the first abutting surface abuts against the push block; when the braking member is in the released position, the second abutting surface abuts against the push block.

[0010] As a preferred embodiment of the above technical solution, the braking assembly further includes a pivot, the braking element is rotatably disposed on the pivot and further includes a hook portion that can interfere with and engage with the positioning buckle, the hook portion is located on one side of the pivot, and the first abutment surface and the second abutment surface are located on the other side of the pivot opposite to the hook portion.

[0011] As a preferred embodiment of the above technical solution, the braking assembly further includes a set of connectors, which are fixed to the support assembly and have a first guide groove extending parallel to the insertion direction. The push block has a guide protrusion that slides in the first guide groove.

[0012] As a preferred embodiment of the above technical solution, the release assembly further includes a return spring, the operating member is sleeved on one end of the flexible wire, and the return spring abuts against the end of the flexible wire and the operating member.

[0013] As a preferred embodiment of the above technical solution, it further includes a front locking mechanism, wherein the front locking mechanism includes two first locking parts and two second locking parts, the two first locking parts are disposed on opposite sides of the front part, and the two second locking parts are disposed on opposite sides of a ski boot and can be releasably locked to the two first locking parts.

[0014] As a preferred embodiment of the above technical solution, the braking member includes a first abutting surface and a second abutting surface that can abut against the push block, wherein the extending direction of the first abutting surface is different from the extending direction of the second abutting surface; when the braking member is in the locked position, the first abutting surface abuts against the push block; when the braking member is in the released position, the second abutting surface abuts against the push block; the braking member further includes a hook portion that can interfere with and engage with the positioning buckle, the hook portion being located on one side of the pivot, and the first abutting surface and the second abutting surface being located on the other side of the pivot opposite to the hook portion; The connecting seat is fixed to the support assembly and has a first guide groove extending parallel to the insertion direction. The push block has a guide protrusion slidably disposed in the first guide groove. The connecting seat includes a first side plate and two second side plates that are spaced apart and connected opposite to the first side plate. The braking member and the push block are sandwiched between the two second side plates. The first guide groove is disposed on the first side plate, and each of the second side plates has a second guide groove extending parallel to the first guide groove. The second pin passes through the second guide groove. The ski boot positioning device further includes a front locking mechanism, which includes two first locking parts and two second locking parts. A first snap-fit ​​portion is provided on two opposite sides of the front portion, and two second snap-fit ​​portions are provided on two opposite sides of a ski boot and can be releasably snapped into position opposite to the two first snap-fit ​​portions; the base includes a base plate and two sidewalls connected to two opposite sides of the base plate, each of the first snap-fit ​​portions includes a first buckle provided on one of the sidewalls, each of the first buckles has a first protrusion, and the first protrusions extend toward the side where the base plate is provided; the ski boot positioning device further includes the ski boot, the ski boot includes a sole and a boot body, the sole has two grooves, and each of the second snap-fit ​​portions includes a second buckle embedded in one of the grooves. The shoe has a second buckle piece partially sandwiched between the sole and the upper in a thickness direction; each second buckle piece extends in an arc shape corresponding to an outer peripheral wall of the sole; each second buckle piece has a second protrusion that can interfere with and lock against a first protrusion; each second protrusion does not protrude from an opening in the groove on the outer peripheral wall; the push block further includes a slot in which the flexible wire is partially accommodated; and the release assembly further includes a return spring, the operating member is sleeved on one end of the flexible wire, and the return spring abuts against the end of the flexible wire and the operating member. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1This is a perspective view of a preferred embodiment of the present invention.

[0017] Figure 2 This is a partial exploded view of a preferred embodiment of the present invention.

[0018] Figure 3 This is a perspective view of a fixator according to a preferred embodiment of the present invention.

[0019] Figure 4 This is a partial enlarged view of a shoe sole according to a preferred embodiment of the present invention.

[0020] Figure 5 and Figure 6 This is a partial exploded view of a support component and a braking component according to a preferred embodiment of the present invention.

[0021] Figure 7 This is an exploded view of the braking assembly according to a preferred embodiment of the present invention.

[0022] Figure 8 and Figure 9 This is a cross-sectional view of a preferred embodiment of the present invention during operation.

[0023] Figure 10 for Figure 8 A magnified view of a portion of the image.

[0024] Figure 11 for Figure 9 A magnified view of a portion of the image.

[0025] Figure 12 This is a partial cross-sectional view of a release component according to a preferred embodiment of the present invention.

[0026] Wherein, 10: Fixer; 11: Base; 111: Front side; 112: Rear side; 113: Base plate; 114: Side wall; 12: Support assembly; 121: Slot; 122: Rear support; 123: Backrest; 20: Front snap-fit ​​mechanism; 21: First snap-fit ​​part; 211: First fastener; 212: First protrusion; 22: Second snap-fit ​​part; 221: Second fastener; 222: Second protrusion; 30: Rear snap-fit ​​mechanism; 31: Braking assembly; 311: Braking element; 3111: First abutment surface; 3112: Second abutment surface; 3113: Hook; 312: Push Block; 3121: Guide protrusion; 3122: Slot; 313: Elastic element; 314: Pivot; 315: Buckle groove; 316: Assembly seat; 3161: First guide groove; 3162: First side plate; 3163: Second side plate; 3164: Second guide groove; 317: First pin; 318: Second pin; 32: Positioning component; 321: Positioning buckle; 322: Buckle protrusion; 40: Release component; 41: Flexible wire; 42: Operating component; 43: Return spring; 50: Ski boot; 51: Sole; 511: Groove; 52: Boot body; D1: First wheelbase; D2: Second wheelbase. Detailed Implementation

[0027] 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 some embodiments of the present invention, not all embodiments. 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.

[0028] The following examples illustrate possible implementations of the present invention, but are not intended to limit the scope of protection of the present invention. The use of "a" or "at least one" before the terms mentioned herein is not a limitation on the quantity, and may also be "plural" depending on the requirements. Such variations in quantity are also within the scope of protection, and are therefore stated in advance.

[0029] Please refer to Figures 1 to 12 This illustrates a preferred embodiment of the present invention, in which the ski boot positioning device includes a retainer 10, a rear locking mechanism 30, and a release component 40.

[0030] The binding 10 includes a base 11 and a support assembly 12. The base 11 is for engaging and positioning a ski and includes a front side 111 and a rear side 112. The support assembly 12 is connected to the rear side 112 and includes a slot 121. The rear locking mechanism 30 includes a braking assembly 31 and a positioning assembly 32. The braking assembly 31 is disposed on the support assembly 12 and includes a braking element 311 corresponding to the slot 121 and a push block 312. The braking element 311 is movable between a locked position and a released position. The push block 312 is disposed on the side of the braking element 311 away from the slot 121. The positioning assembly 32 is disposed on a ski boot 50 and includes a positioning buckle 32. 1. When the positioning buckle 321 is inserted into the slot 121, the braking member 311 can move from the release position to the locking position and engage with the positioning buckle 321 in one insertion direction of the slot 121. The push block 312 abuts against the braking member 311 and restricts the movement of the braking member 311. The release assembly 40 is provided on the fixing device 10 and includes a flexible wire 41 and an operating member 42. The flexible wire 41 is connected to the braking assembly 31 and the operating member 42 respectively. The operating member 42 can be externally operated to pull the flexible wire 41 to move the push block 312 away from the braking member 311, allowing the braking member 311 to move from the locking position to the release position. In this way, the ski boot 50 can be quickly engaged or released from the fixing device 10, with good stability and convenient operation.

[0031] The ski boot positioning device further includes a front locking mechanism 20, which includes two first locking parts 21 and two second locking parts 22. The two first locking parts 21 are located on opposite sides of the front side 111, and the two second locking parts 22 are located on opposite sides of a ski boot 50 and can be releasably locked to the two first locking parts 21. In this way, the front locking mechanism 20 and the rear locking mechanism 30 can provide a three-point locking effect, and there is no need to bind the upper part of the ski boot 50, resulting in good comfort.

[0032] In detail, the base 11 includes a base plate 113 and two sidewalls 114 connected to opposite sides of the base plate 113. Each first snap-fit ​​portion 21 includes a first fastener 211 disposed on one of the sidewalls 114. Each first fastener 211 has a first protrusion 212, which extend towards the side where the base plate 113 is disposed. The ski boot 50 positioning device further includes the ski boot 50, which includes a sole 51 and a boot body 52. ​​The sole 51 has two grooves 511. Each second snap-fit ​​portion 22 includes a second fastener 221 embedded in one of the grooves 511. In a thickness direction of the sole 51, each second fastener 221 is partially sandwiched between the sole 51 and the boot body 52, resulting in good assembly stability and resistance to damage from impacts. (See reference) Figure 4Each of the second buckles 221 preferably extends in a curved manner corresponding to an outer peripheral wall of the sole 51. Each of the second buckles 221 has a second protrusion 222 that can interfere with and lock against a first protrusion 212. Each second protrusion 222 does not protrude from an opening in the groove 511 on the outer peripheral wall, resulting in good aesthetics and resistance to damage. The first buckles 211 may be made of, for example, a highly resilient material. When a user steps the forefoot portion of the ski boot 50 into the front side 111, the first buckles 211 can deform slightly so that each first protrusion 212 extends into the groove 511 and interferes with and locks against a second protrusion 222, thereby preventing the front of the ski boot 50 from detaching from the fastener 10 upwards or forwards.

[0033] Reference Figures 5 to 7 The braking assembly 31 further includes at least one elastic member 313, which is connected between the push block 312 and the braking member 311 to give the push block 312 and the braking member 311 a tendency to move towards each other. Further, the braking member 311 includes a first abutting surface 3111 and a second abutting surface 3112 that can abut against the push block 312. The extending direction of the first abutting surface 3111 is different from the extending direction of the second abutting surface 3112. When the braking member 311 is in the locked position, the first abutting surface 3111 abuts against the push block 312; when the braking member 311 is in the released position, the second abutting surface 3112 abuts against the push block 312. In this way, the at least one elastic member 313 makes the brake member 311 tend to move toward the locked position or the released position when pivoting, and the elastic force of the at least one elastic member 313 needs to be overcome during operation, so the operation is more reliable and stable.

[0034] Specifically, the braking assembly 31 further includes a pivot 314, and the braking member 311 is rotatably disposed on the pivot 314 and further includes a hook portion 3113 that can interfere with and engage with the positioning buckle 321. The hook portion 3113 is located on one side of the pivot 314, and the first abutment surface 3111 and the second abutment surface 3112 are located on the other side of the pivot 314 opposite to the hook portion 3113. Furthermore, the distance between the first abutment surface 3111 and the pivot 314 is less than the distance between the second abutment surface 3112 and the pivot 314. In this embodiment, the braking assembly 31 further includes a set of seats 316, a first pin 317 and a second pin 318. The braking member 311 is pivotally mounted on the set of seats 316 via the pivot 314. The first pin 317 passes through one side of the braking member 311 eccentric to the pivot 314. The second pin 318 passes through and connects the push block 312 and the set of seats 316. Two elastic members 313 are connected between the first pin 317 and the second pin 318 and are respectively disposed on opposite sides of the set of seats 316, which facilitates assembly and provides stable and sufficient tensile elasticity. When the brake element 311 is in the locked position, the pivot 314 and the second pin 318 have a first wheelbase D1. When the brake element 311 is in the released position, the pivot 314 and the second pin 318 have a second wheelbase D2. The first wheelbase D1 is smaller than the second wheelbase D2. Figure 10 and Figure 11 As shown. In this way, the positioning buckle 321 pushes the brake member 311 to move to the locking position with less effort and is more convenient to operate. When the positioning buckle 321 pulls the hook 3113 outward, the brake member 311 is not easy to pivot towards the release position, and the locking stability is good.

[0035] The assembly 316 is fixed to the support assembly 12 and has a first guide groove 3161 extending parallel to the insertion direction. The push block 312 has a guide protrusion 3121 that slides in the first guide groove 3161. The assembly 316 includes a first side plate 3162 and two second side plates 3163 that are spaced apart and connected to the first side plate 3162. The brake member 311 and the push block 312 are sandwiched between the two second side plates 3163. The first guide groove 3161 is provided on the first side plate 3162. Each of the second side plates 3163 has a second guide groove 3164 extending parallel to the first guide groove 3161. The second pin 318 passes through each of the second guide grooves 3164. In this way, the first guide groove 3161 and each of the second guide grooves 3164 can stably guide and restrict the push block 312 to move only parallel to the insertion direction without relative rotation; when the brake member 311 moves to the locked position, the push block 312 can be pulled by the two elastic members 313 and displaced upward to resist the brake member 311; when the operating member 42 is pulled, the push block 312 can be driven downward, thereby stretching the two elastic members 313 and driving the brake member 311 to pivot to the release position.

[0036] Preferably, the positioning component 32 further includes a buckle protrusion 322, and the positioning buckle 321 is a buckle ring connected to the buckle protrusion 322. The braking component 31 further includes a buckle groove 315 disposed on the side of the support component 12 adjacent to the slot 121. The buckle groove 315 corresponds to the buckle protrusion 322 and corresponds to the shape of the buckle protrusion 322, so that they can be fastened to each other to increase the assembly stability.

[0037] In this embodiment, the support assembly 12 includes a rear support member 122 and a backrest 123 connected between the rear support member 122 and the base 11. The braking assembly 31 and the release assembly 40 are disposed on the backrest 123. The push block 312 further includes a slot 3122, in which the flexible wire 41 is partially accommodated and can drive the push block 312 to move away from the braking member 311. Specifically, one end of the flexible wire 41 is engaged with one side of the backrest 123, and the other end of the flexible wire 41 is connected to the operating member 42 and disposed on the other side of the backrest 123. The flexible wire 41 passes through the slot 3122, such as... Figure 5As shown, when the operating member 42 is pulled, the flexible wire 41 can be stretched, causing the push block 312 to move away from the brake member 311, allowing the brake member 311 to pivot. Furthermore, the flexible wire 41 can be bent arbitrarily, facilitating configuration and preventing damage or interference during insertion and removal, resulting in excellent operational convenience. Preferably, the release assembly 40 further includes a return spring 43. The operating member 42 is sleeved on one end of the flexible wire 41, and the return spring 43 springs against the end of the flexible wire 41 and the operating member 42, so that when the operating member 42 is not under tension, it can remain at one end of the flexible wire 41, preventing arbitrary sagging or displacement, reducing gaps, and ensuring immediate operation when actuated.

[0038] In use, the user first steps the forefoot portion of the ski boot 50 into the front side 111, causing the first buckles 211 to slightly deform and each of the first protrusions 212 to extend into a groove 511 and interfere with and block a second protrusion 222. Then, the user steps the heel down into the rear side 112, causing the positioning buckle 321 to insert into the slot 121 and the buckle protrusion 322 to insert into the buckle groove 315. The positioning buckle 321 then abuts against the brake member 311 and pivots to the locking position, thus positioning the ski boot 50 on the binding 10. To remove the ski boot 50 from the binding 10, the user simply pulls the operating member 42, causing the push block 312 to drive the brake member 311 to pivot to the release position, thus lifting the heel upwards. This allows for quick on and off of the ski boot 50 from the binding 10, offering excellent convenience.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention 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 or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A ski boot positioning device, characterized in that, include: A fastener includes a base and a support assembly. The base is for engaging and positioning with a ski and includes a front side and a rear side. The support assembly is connected to the rear side and includes a slot. A rear locking mechanism includes a braking assembly and a positioning assembly. The braking assembly is disposed on the support assembly and includes a braking member corresponding to the slot and a push block. The braking member is movable between a locked position and a released position. The push block is disposed on the side of the braking member away from the slot. The positioning assembly is disposed on the ski boot and includes a positioning buckle. When the positioning buckle is inserted into the slot, the braking member can move from the released position to the locked position and engage with the positioning buckle in an insertion direction of the slot. The push block abuts against the braking member and restricts the movement of the braking member. A release assembly is provided on the retainer, including a flexible wire and an operating member. The flexible wire is connected to the push block and the operating member respectively. The operating member can be externally operated to pull the flexible wire to move the push block away from the brake member, allowing the brake member to move from the locked position to the released position.

2. The ski boot positioning device according to claim 1, characterized in that, The braking assembly further includes at least one elastic element connected between the push block and the braking element to give the push block and the braking element a tendency to move in opposite directions.

3. The ski boot positioning device according to claim 2, characterized in that, The braking assembly further includes a set of seats, a first pin and a second pin. The braking member is pivotally mounted on the set of seats. The first pin passes through the braking member on one side eccentric to the pivot. The second pin passes through and connects the push block and the set of seats. The at least one elastic member is connected between the first pin and the second pin.

4. The ski boot positioning device according to claim 3, characterized in that, When the brake is in the locked position, the pivot and the second pin have a first wheelbase, and when the brake is in the released position, the pivot and the second pin have a second wheelbase, the first wheelbase being smaller than the second wheelbase.

5. The ski boot positioning device according to claim 1, characterized in that, The braking component includes a first abutting surface and a second abutting surface that can abut against the push block. The extension direction of the first abutting surface is different from the extension direction of the second abutting surface. When the braking component is in the locked position, the first abutting surface abuts against the push block. When the braking component is in the released position, the second abutting surface abuts against the push block.

6. The ski boot positioning device according to claim 5, characterized in that, The braking assembly further includes a pivot, the braking element is rotatably disposed on the pivot and further includes a hook portion that can interfere with and engage with the positioning buckle, the hook portion being located on one side of the pivot, and the first abutment surface and the second abutment surface being located on the other side of the pivot opposite to the hook portion.

7. The ski boot positioning device according to claim 1, characterized in that, The braking assembly further includes a set of connectors, which are fixed to the support assembly and have a first guide groove extending parallel to the insertion direction. The push block has a guide protrusion that slides in the first guide groove.

8. The ski boot positioning device according to claim 1, characterized in that, The release assembly further includes a return spring, the actuating member is sleeved on one end of the flexible wire, and the return spring abuts against the end of the flexible wire and the actuating member.

9. The ski boot positioning device according to any one of claims 1 to 8, characterized in that, It also includes a front locking mechanism, wherein the front locking mechanism includes two first locking parts and two second locking parts, the two first locking parts are disposed on opposite sides of the front part, and the two second locking parts are disposed on opposite sides of a ski boot and can be releasably locked to the opposite position of the two first locking parts.

10. The ski boot positioning device according to claim 4, characterized in that, The braking element includes a first abutment surface and a second abutment surface that can abut against the push block. The first abutment surface extends in a direction different from the second abutment surface. When the braking element is in the locked position, the first abutment surface abuts against the push block. When the braking element is in the released position, the second abutment surface abuts against the push block. The braking element further includes a hook portion that can interfere with and engage with the positioning buckle. The hook portion is located on one side of the pivot, and the first abutment surface and the second abutment surface are located on the other side of the pivot, opposite to the hook portion. The assembly seat is fixed to the support assembly and... The assembly includes a first guide groove extending parallel to the insertion direction, and a push block with a guide protrusion slidingly in the first guide groove. The assembly includes a first side plate and two second side plates spaced apart and connected opposite to the first side plate. The brake and the push block are sandwiched between the two second side plates. The first guide groove is located on the first side plate, and each second side plate has a second guide groove extending parallel to the first guide groove. The second pin passes through the second guide groove. The ski boot positioning device further includes a front locking mechanism, which includes two first locking portions and two second locking portions. The two first locking portions are located on the front... On opposite sides of the side portion, two second snap-fit ​​portions are provided on opposite sides of a ski boot and can be releasably snapped into position opposite to the two first snap-fit ​​portions; the base includes a base plate and two sidewalls connected to opposite sides of the base plate, each of the first snap-fit ​​portions includes a first fastener provided on one of the sidewalls, each of the first fasteners having a first protrusion, the first protrusions extending toward the side where the base plate is provided; the ski boot positioning device further includes the ski boot, the ski boot including a sole and a boot body, the sole having two grooves, each of the second snap-fit ​​portions including a second fastener embedded in one of the grooves, on the... In a thickness direction of the sole, each of the second buckles is partially sandwiched between the sole and the upper; each of the second buckles extends in an arcuate manner corresponding to an outer peripheral wall of the sole, each of the second buckles has a second protrusion that can interfere with and lock against a first protrusion, and each of the second protrusions does not protrude from an opening in the groove on the outer peripheral wall; the push block further includes a slot, in which the flexible wire is partially accommodated; and the release assembly further includes a return spring, the operating member is sleeved on one end of the flexible wire, and the return spring abuts against the end of the flexible wire and the operating member.

Images