Shoe and sliding adjusting buckle set
By designing the shoe and sliding adjustment buckle assembly, the problems of limited buckle shape design and inability to repair damaged paddles have been solved, thus improving comfort and ease of maintenance.
Patent Information
- Application Number
- CN202520278033.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-02-20
AI Technical Summary
The existing sliding fasteners are one-piece designs, and the mold release structure limits the shape design and operation functions. Furthermore, the paddle cannot be repaired or replaced when it is damaged.
A shoe and sliding adjustment buckle assembly were designed, including an adjustment track, a slider, an operating component, and an elastic arm. The slider can be moved stably by the cooperation of the limiting hook and the clamping wall, and the operating component can be easily repaired and replaced when it is damaged.
It improves the comfort of wearing shoes and the ease of operation, and allows for convenient repair when operating parts are damaged, thus increasing the convenience of maintenance.
Smart Images
Figure CN223667388U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a shoe and buckle group, especially a shoe and sliding adjustment buckle group. BACKGROUND
[0002] The existing buckles are very popular, and different types of buckles have different buckling methods, and can be simultaneously applied to clothes, shoes or bags. However, the existing sliding buckles are integrated, which limits the design and operation function due to the mold release structure, and cannot be repaired and replaced when the dial piece is damaged.
[0003] Therefore, the applicant believes that the above defects can be improved, and after careful research and cooperation with the application of scientific principles, a utility model with reasonable design and effective improvement of the above defects is finally proposed. UTILITY MODEL CONTENT
[0004] The purpose of the utility model embodiment is to provide a shoe and sliding adjustment buckle group, which can effectively improve the defects that may be caused by the existing buckle.
[0005] One embodiment of the utility model discloses a shoe, which comprises a shoe body including a shoe sole and a shoe body with two vamp parts arranged on the two sides of the shoe sole and opposite to each other, and a sliding adjustment buckle group arranged on the shoe body, wherein the sliding adjustment buckle group comprises an adjustment track including a body and a plurality of limiting teeth arranged on the body, the body has a first end and a second end opposite to each other, the first end is connected to one of the vamp parts, and the second end is connected to the other vamp part; a sliding part arranged on the adjustment track, the sliding part can move along the adjustment track towards the first end or the second end, and the sliding part comprises a ring-shaped shell sleeved on the body, the ring-shaped shell has a connecting wall and a clamping wall opposite to each other, and an elastic arm extending from the connecting wall to the direction of the second end and the clamping wall, the elastic arm has a limiting hook arranged between any two adjacent limiting teeth, the limiting hook can abut against one of the limiting teeth, and the limiting hook cooperates with the clamping wall to clamp the body to limit the movement of the sliding part relative to the body; and an operating part installed on the ring-shaped shell of the sliding part, the operating part comprises an operating body slidably arranged on the ring-shaped shell, the operating body can move along the ring-shaped shell between a first position and a second position, and an operating part extending from the operating body to the sliding part to abut against the elastic arm; when the operating body is subjected to an external force at the second position, the operating part can temporarily deform the elastic arm, so that the limiting hook is away from the clamping wall and located outside the plurality of limiting teeth, and the sliding part can move relative to the body.
[0006] Optionally, the elastic arm is capable of forcing the operation body to move to the first position when the operation body is not subjected to an external force, so that the limiting hook is capable of abutting against one of the limiting teeth, and the limiting hook is capable of clamping the body of the adjusting track by cooperating with the clamping wall.
[0007] Optionally, the plurality of limiting teeth are arranged at intervals on the body, and each limiting tooth has a limiting side surface facing the first end, a guide side surface facing the second end, and a bottom surface facing the clamping wall, the included angle between the limiting side surface and the bottom surface is less than 90 degrees, and the included angle between the guide side surface and the bottom surface is greater than 90 degrees; the limiting hook is capable of crossing the limiting tooth through the guide side surface, and the limiting hook is capable of abutting against the limiting tooth through the limiting side surface.
[0008] Optionally, the body has a top surface and a bottom surface located at opposite sides, and the body forms an exhaust channel between any two adjacent limiting teeth, and the exhaust channel is communicated with the top surface and the bottom surface.
[0009] Optionally, the limiting hook has a stop surface abutting against the limiting side surface, an extension line of the stop surface extends to the connecting wall and is clamped with the connecting wall at a stop angle; wherein the stop angle is greater than the included angle between the limiting side surface and the bottom surface.
[0010] Optionally, one of the two vamp parts has two accommodation parts arranged at intervals; wherein the two side edges of the annular shell of the sliding member are respectively extended to form two fixing pieces, and the two fixing pieces are respectively fixed in the two accommodation parts, so that the sliding member is fixed to one of the two vamp parts.
[0011] Optionally, the annular shell comprises two side walls connecting the connecting wall and the clamping wall, and each of the two side walls has a track rib on a side surface facing each other, and each track rib is adjacent to the top surface of the plurality of limiting teeth; wherein the operation member is provided with two sliders corresponding to the positions of the two track ribs, and the two sliders are capable of sliding on the two track ribs respectively, so that the operation body is capable of sliding in the annular shell.
[0012] Optionally, each track rib is a stepped structure, and each track rib has a first sliding surface and a second sliding surface facing the connecting wall, and a stop surface connecting the first sliding surface and the second sliding surface; wherein each slider has a stop block adjacent to an end portion of the second end, and the stop block faces the clamping wall, and when the operation body is located at the first position, the two stop blocks are respectively abutted against the two stop surfaces.
[0013] Optionally, the elastic arm and the connecting wall connected to the elastic arm are clamped at an arrangement angle of 13 degrees to 17 degrees.
[0014] The utility model discloses one of the embodiment discloses a sliding adjustment buckle group, contain: an adjustment track, contain a body, and set up a plurality of limit tooth on the body, the body has opposite a first end and a second end, a sliding part is set up on the adjustment track, and the sliding part can move along the adjustment track to the first end or the second end, and the sliding part contains: a ring -shaped shell, is set up on the body, and the ring -shaped shell has opposite a connecting wall and a clamping wall, and a resilient arm extends from the connecting wall to the direction of the second end and the clamping wall, and the resilient arm has a limit hook between the adjacent two limit tooth, and the limit hook can abut on one of the limit tooth, and the limit hook cooperates the clamping wall and holds the body to limit the movement of the sliding part relative to the body, and an operating part is installed on the ring -shaped shell of the sliding part, and the operating part contains: an operation body, slidingly set up on the ring -shaped shell, and the operation body can move along the ring -shaped shell between a first position and a second position, and an operating part extends from the operation body to the sliding part to abut on the resilient arm, wherein when the operation body is applied to an external force and is in the second position, the operating part can force the resilient arm to temporarily deform, make the limit hook away from the clamping wall and be located on the outside of a plurality of limit tooth, and the sliding part can move relative to the body.
[0015] In conclusion, the shoe and the sliding adjustment buckle group disclosed by the utility model embodiment can be intuitively used by the user to quickly wear the shoe, improve the overall wearing comfort, and facilitate maintenance replacement when the operating part is damaged, thereby increasing the convenience of maintenance.
[0016] For further understanding of the features and technical contents of the utility model, please refer to the following detailed description and drawings of the utility model, but the description and drawings are only used to illustrate the utility model, and do not limit the protection scope of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the schematic view of the shoe of the utility model embodiment.
[0018] Figure 2 It is another schematic view of the shoe of the utility model embodiment.
[0019] Figure 3 It is the three -dimensional schematic view of the sliding adjustment buckle group of the utility model embodiment.
[0020] Figure 4 Another perspective view of the sliding adjustment buckle set of the embodiment of the present application.
[0021] Figure 5 An exploded view of the sliding adjustment buckle set of the embodiment of the present application.
[0022] Figure 6 For Figure 3 A cross-sectional view along the VI-VI section line.
[0023] Figure 7 For Figure 6 A partial enlarged view.
[0024] Figure 8 A plan view of the embodiment of the present application when the operating arm is subjected to an external force.
[0025] Figure 9 For Figure 3 A cross-sectional view along the IX-IX section line. DETAILED DESCRIPTION
[0026] The following is to illustrate the embodiments of the present application related to "shoes and sliding adjustment buckle sets" through specific embodiments, and the advantages and effects of the present application can be understood by the content disclosed in the present specification. The present application can be implemented or applied through other different embodiments, and each detail in the present specification can be modified and changed based on different viewpoints and applications without departing from the concept of the present application. In addition, the drawings of the present application are only simple schematic illustrations, and are not the depiction of actual sizes, which is declared in advance. The following embodiments will further illustrate the related technical content of the present application in detail, but the disclosed content is not used to limit the protection scope of the present application.
[0027] It should be understood that although the terms "first", "second", "third" and the like can be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" used herein can include any one or more combinations of the associated listed items.
[0028] Please refer to Figures 1 to 9As shown, it is an embodiment of the present application, the present application embodiment provides a kind of shoes 100.It needs to be first explained, to facilitate understanding this embodiment, so the drawing only presents the partial configuration of the shoe 100, to facilitate clearly present the component configuration and connection relationship of the shoe 100, but the present application is not limited to illustration.The following will introduce the various components of the shoe 100 and its connection relationship.
[0029] As Figure 1 With Figure 2 As shown, the shoe 100 includes a shoe body 1 and a sliding adjustment buckle set 2 mounted on the shoe body 1. It needs to be first explained that the shoe 100 in this embodiment can improve the overall wearing comfort by the structure of the sliding adjustment buckle set 2.
[0030] In addition, the sliding adjustment buckle set 2 in this embodiment is described in combination with the shoe body 1, but the present application is not limited thereto. For example, in other embodiments not shown in the present application, the sliding adjustment buckle set 2 can be used alone (such as: sold) or in combination with other components according to actual needs; for example: the sliding adjustment buckle set 2 can be used in combination with clothing (such as: trousers) or bag body (such as: backpack or handbag).
[0031] In this embodiment, the shoe body 1 includes a shoe sole 11 and a shoe body 12. The shoe body 12 has two vamp parts 121. Two vamp parts 121 are respectively arranged on both sides of the shoe sole 11, and two vamp parts 121 are opposite to each other. The sliding adjustment buckle set 2 is mounted on two vamp parts 121 to adjust the tightness of two vamp parts 121 relative to the sole of the foot.
[0032] In combination Figures 3 to 5 , the sliding adjustment buckle set 2 includes an adjustment track 21, a sliding member 22 arranged on the adjustment track 21 and an operating member 23 mounted on the sliding member 22. The adjustment track 21 includes a body 211 and a plurality of limit teeth 212 arranged on the body 211. Specifically, the adjustment track 21 in this embodiment is a long structure, and the body 211 has a first end E1 and a second end E2 opposite to each other. Among them, a plurality of limit teeth 212 are arranged at intervals on the body 211, and the length extension direction of each limit tooth 212 is perpendicular to the length extension direction of the body 211.
[0033] It is to be noted that the body 211 has a top surface ST and a bottom surface SM in the present embodiment, and the body 211 forms a discharge channel DC between any two adjacent limiting teeth 212. The discharge channel DC is communicated with the top surface ST and the bottom surface SM, so as to facilitate the particles (e.g. dust, sand, etc.) between any two adjacent limiting teeth 212 to be discharged through the discharge channel DC, thereby avoiding the sliding member 22 from being stuck in the adjustment track 21.
[0034] Further reference Figures 5 to 8 As shown, the sliding member 22 is arranged on the adjustment track 21, and the sliding member 22 can move along the adjustment track 21 towards the first end E1 or the second end E2. The sliding member 22 comprises a ring-shaped housing 221 arranged on the body 211 and an elastic arm 222 connected to the ring-shaped housing 221. In practice, the ring-shaped housing 221 and the elastic arm 222 can be directly integrally formed by plastic injection, but the present application is not limited thereto.
[0035] Further, the cross section of the ring-shaped housing 221 has a "mouth" shape in the present embodiment, and the ring-shaped housing 221 has a connecting wall 2211 and a clamping wall 2212 opposite to each other, and two side walls 2213 connecting the connecting wall 2211 and the clamping wall 2212. When the ring-shaped housing 221 is arranged on the body 211, the connecting wall 2211, the clamping wall 2212 and the two side walls 2213 surround the body 211. In other words, the ring-shaped housing 221 has two openings facing the first end E1 and the second end E2.
[0036] It is to be additionally noted that one of the two upper parts 121 has two accommodation portions 1211 arranged at intervals. Two fixing pieces 2214 are respectively extended from two side edges of the ring-shaped housing 221 of the sliding member 22, and the two fixing pieces 2214 are respectively fixed in the two accommodation portions 1211, so that the sliding member 22 is fixed on one of the two upper parts 121, and one of the two upper parts 121 is connected with the sliding member 22.
[0037] Cooperation Figures 5 to 7 The elastic arm 222 is accommodated in the interior of the ring-shaped housing 221, and the elastic arm 222 can cooperate with the adjustment track 21 to control the movement or limiting of the sliding member 22.
[0038] Specifically, the elastic arm 222 extends from the connecting wall 2211 toward the direction of the clamping wall 2212, that is, the elastic arm 222 is not parallel to the connecting wall 2211, so that the elastic arm 222 is in an inclined configuration relative to the connecting wall 2211. The end of the elastic arm 222 has a limiting hook 2221 arranged between any two adjacent limiting teeth 212. The limiting hook 2221 can abut against one of the limiting teeth 212, and the limiting hook 2221 clamps the body 211 together with the clamping wall 2212 to limit the movement of the sliding piece 22 relative to the body 211. That is, the elastic arm 222 limits the movement of the sliding piece 22 along the adjustment track 21 toward the first end E1 or the second end E2 by abutting and clamping.
[0039] It should be particularly noted that, in order to facilitate the operation of the sliding adjustment buckle set 2, the cooperation relationship between the elastic arm 222 and the plurality of limiting teeth 212 can be designed as a one-way limiting cooperation structure (i.e., a ratchet effect).
[0040] Specifically, each of the limiting teeth 212 has a limiting side SA facing the first end E1 and a guide side SG facing the second end E2, the included angle between the limiting side SA and the bottom surface SM facing the clamping wall 2212 is less than 90 degrees, and the included angle between the guide side SG and the bottom surface SM is greater than 90 degrees. The cross section of the limiting hook 2221 is designed to be tapered toward the bottom surface SM, and the limiting hook 2221 can cooperate with the limiting side SA and the guide side SG to form a ratchet mechanical relationship toward the first end E1.
[0041] Accordingly, when the operating piece 23 is not subjected to external force, the limiting hook 2221 can cross the limiting tooth 212 through the guide side SG, so that the sliding piece 22 moves along the adjustment track 21 toward the first end E1. Conversely, when the operating piece 23 is not subjected to external force, the limiting hook 2221 can abut against the limiting tooth 212 through the limiting side SA, so that the movement of the sliding piece 22 along the adjustment track 21 toward the second end E2 is limited.
[0042] In addition, the limiting hook 2221 has a stop face SB abutting against the limiting side face SA, an extension line of the stop face SB extending to the connecting wall 2211 and clamping a stop angle RB with the connecting wall 2211. The stop angle RB is greater than the included angle RS between the limiting side face SA and the bottom face SM, so that the limiting hook 2221 of the elastic arm 222 is not easy to slide off the limiting side face SA. In other words, the limiting hook 2221 can be separated from the limiting side face SA when the operating member 23 is subjected to external force.
[0043] It should be noted that the elastic arm 222 and the connecting wall 2211 connected to the elastic arm 222 clamping an arrangement angle RC between 13 degrees and 17 degrees. The elastic arm 222 of the embodiment is designed through the arrangement angle RC, so that the limiting hook 2221 of the elastic arm 222 is separated from the limiting side face SA when the operating member 23 is subjected to external force.
[0044] Further Figures 7 to 9 As shown, the operating member 23 is used for the user to operate to selectively drive the elastic arm 222 to control the sliding member 22 to move or limit relative to the adjusting track 21. It should be noted that since the operating member 23 is installed on the annular housing 221 of the sliding member 22, when the operating member 23 is damaged, it can be conveniently repaired and replaced, thereby increasing the convenience of maintenance.
[0045] In the embodiment, the operating member 23 includes an operating body 231 slidingly arranged on the annular housing 221 and an operating portion 232 extending from the operating body 231 towards the sliding member 22 to abut against the elastic arm 222.
[0046] The operating body 231 can move along the annular housing 221 between a first position and a second position. When the operating body 231 is located at the first position, the limiting hook 2221 of the elastic arm 222 abuts against the limiting tooth 212, so that the movement of the sliding member 22 is limited. Therefore, the first position corresponds to a locking position. Conversely, when the operating body 231 is located at the second position, the limiting hook 2221 of the elastic arm 222 can be separated from the limiting tooth 212 from the limiting side face SA, so that the sliding member 22 can move along the body 211 in the direction of the first end E1 or the second end E2. Therefore, the second position corresponds to a release position.
[0047] The operation part 232 can control the limiting hook 2221 of the elastic arm 222 to abut against one of the limiting teeth 212 or to be located outside the limiting teeth 212 by being separated from the limiting side surface SA. Specifically, when the operation body 231 is subjected to an external force and is in the second position, the operation part 232 can force the elastic arm 222 to temporarily deform, so that the limiting hook 2221 is located outside the limiting teeth 212 by being separated from the clamping wall 2212, and the sliding piece 22 can move relative to the body 211.
[0048] Conversely, when the operation body 231 is not necessarily subjected to an external force, the elastic arm 222 can force the operation body 231 to move to the first position, so that the limiting hook 2221 can abut against one of the limiting teeth 212, and the limiting hook 2221 cooperates with the clamping wall 2212 to clamp the body 211 of the adjustment track 21.
[0049] It should be additionally pointed out that, as shown in Figure 4 , Figure 5 and Figure 9 , in order to ensure the movement stability of the sliding piece 22 on the adjustment track 21, the two side walls 2213 of the annular shell 221 can further have a track rib TR on the side facing each other, and each track rib TR is adjacent to the top surface of the limiting teeth 212, so as to assist in stabilizing the movement of the sliding piece 22.
[0050] Further, the operation piece 23 is provided with two sliding blocks 233 corresponding to the positions of the two track ribs TR, and the two sliding blocks 233 can slide on the two track ribs TR respectively, so that the operation body 231 can slide in the annular shell 221.
[0051] In detail, each track rib TR is a stepped structure, and each track rib TR has a first sliding surface SL1 and a second sliding surface SL2 facing the connecting wall 2211. The first sliding surface SL1 and the second sliding surface SL2 have a stop surface SS connecting the first sliding surface SL1 and the second sliding surface SL2. Each sliding block 233 has a stop block 2331 at one end adjacent to the second end E2. The stop block 2331 faces the clamping wall 2212. When the operation body 231 is in the first position, the two stop blocks 2331 abut against the two stop surfaces SS respectively (as shown in Figure 9 , so as to avoid the operation piece 23 from being separated from the sliding piece 22.
[0052] [Technical effects of the utility model embodiment]
[0053] In summary, the shoe and the sliding adjustment buckle group disclosed by the embodiments of the present application can intuitively provide a user with quick wearing of the shoe through the design of "the limiting hook can abut against one of the limiting teeth, and the limiting hook clamps the body in cooperation with the clamping wall to limit movement of the sliding member relative to the body" and "when the operation body is subjected to an external force in the second position, the operation part can force the elastic arm to temporarily deform, so that the limiting hook is away from the clamping wall and located outside the limiting teeth, and the sliding member can move relative to the body", so as to improve the overall wearing comfort, and when the operation member is damaged, the maintenance replacement is facilitated, so as to increase the convenience of maintenance.
[0054] The above disclosed content is only the preferred feasible embodiment of the present application, and does not limit the patent range of the present application, so that any equivalent technical changes made by applying the content of the present application specification and drawings are included in the patent range of the present application.
Claims
1. A shoe, characterized by The shoe comprises: a shoe body comprising: a shoe sole; and a shoe body having two shoe face portions, the two shoe face portions being respectively arranged on two sides of the shoe sole, and the two shoe face portions being opposite to each other; and a sliding adjustment buckle set arranged on the shoe body, the sliding adjustment buckle set comprising: an adjustment track comprising a body and a plurality of limiting teeth arranged on the body, the body having a first end and a second end opposite to each other; wherein the first end is connected to one of the shoe face portions, and the second end is connected to the other shoe face portion; a sliding member arranged on the adjustment track, the sliding member being capable of moving along the adjustment track towards the first end or the second end, and the sliding member comprising: a ring-shaped shell sleeved on the body, the ring-shaped shell having a connecting wall and a clamping wall opposite to each other; and a resilient arm extending from the connecting wall towards the second end and the clamping wall, the resilient arm having a limiting hook arranged between any two adjacent limiting teeth, the limiting hook being capable of abutting against one of the limiting teeth, and the limiting hook clamping the body in cooperation with the clamping wall to limit the movement of the sliding member relative to the body; and an operating member mounted on the ring-shaped shell of the sliding member, the operating member comprising: an operating body slidingly arranged on the ring-shaped shell, the operating body being capable of moving along the ring-shaped shell between a first position and a second position; and an operating portion extending from the operating body towards the sliding member to abut against the resilient arm; wherein when the operating body is subjected to an external force at the second position, the operating portion can force the resilient arm to temporarily deform, so that the limiting hook is located outside the limiting teeth away from the clamping wall, and the sliding member can move relative to the body.
2. The shoe according to claim 1, characterized in that When the operating body is not subjected to the external force, the resilient arm can force the operating body to move to the first position, so that the limiting hook can abut against one of the limiting teeth, and the limiting hook clamps the body of the adjustment track in cooperation with the clamping wall.
3. The shoe of claim 1, wherein, The limiting teeth are arranged at intervals on the body, and each limiting tooth has a limiting side surface facing the first end, a guide side surface facing the second end, and a bottom surface facing the clamping wall, the included angle between the limiting side surface and the bottom surface being less than 90 degrees, and the included angle between the guide side surface and the bottom surface being greater than 90 degrees; the limiting hook can cross the limiting tooth through the guide side surface, and the limiting hook can abut against the limiting tooth through the limiting side surface.
4. The shoe of claim 1, wherein, The body has a top surface and a bottom surface on opposite sides, and the body forms an exhaust channel between any two adjacent limiting teeth, the exhaust channel being communicated with the top surface and the bottom surface.
5. The shoe of claim 3, wherein, The limiting hook has a stop surface abutting against the limiting side surface, an extension line of the stop surface extends to the connecting wall and is clamped with the connecting wall at a stop angle; wherein the stop angle is larger than the angle between the limiting side surface and the bottom surface.
6. The shoe of claim 1, wherein, One of the two upper portions has two accommodating portions arranged at intervals; wherein two side edges of the annular shell of the sliding member are respectively extended to form two fixing sheets, and the two fixing sheets are respectively fixed to the two accommodating portions, so that the sliding member is fixed to one of the two upper portions.
7. The shoe of claim 1, wherein The annular shell comprises two side walls connecting the connecting wall and the clamping wall, and each of the two side walls has a track rib on a side surface facing each other, and each of the track ribs is adjacent to the top surface of the plurality of limiting teeth; wherein the operating member is provided with two sliders corresponding to the positions of the two track ribs, and the two sliders can slide on the two track ribs respectively, so that the operating body can slide in the annular shell.
8. The shoe according to claim 7, characterized in that Each of the track ribs is a stepped structure, and each of the track ribs has a first sliding surface and a second sliding surface facing the connecting wall, and a stop surface connecting the first sliding surface and the second sliding surface; wherein each of the sliders has a stop block adjacent to one end of the second end, and the stop block faces the clamping wall, and when the operating body is located at the first position, the two stop blocks are respectively abutted against the two stop surfaces.
9. The shoe of claim 1, wherein, The elastic arm and the connecting wall connected to the elastic arm are clamped at an arrangement angle of 13 degrees to 17 degrees.
10. A slide adjustment buckle set, characterized in that, The sliding adjustment buckle set comprises: An adjustment track comprising a body and a plurality of limiting teeth arranged on the body, the body having a first end and a second end opposite to each other; A sliding member arranged on the adjustment track, the sliding member being capable of moving along the adjustment track towards the first end or the second end, and the sliding member comprising: An annular shell sleeved on the body, the annular shell having a connecting wall and a clamping wall opposite to each other; and An elastic arm extending from the connecting wall towards the direction of the second end and the clamping wall, the elastic arm having a limiting hook arranged between any two adjacent limiting teeth, the limiting hook being capable of abutting against one of the limiting teeth, and the limiting hook clamping the body with the clamping wall to limit the movement of the sliding member relative to the body; and An operating member mounted on the annular shell of the sliding member, the operating member comprising: An operating body slidingly arranged on the annular shell, the operating body being capable of moving along the annular shell between a first position and a second position; and An operating part extending from the operating body towards the sliding member to abut against the elastic arm; Wherein when the operating body is subjected to an external force at the second position, the operating part can force the elastic arm to temporarily deform, so that the limiting hook is located outside the plurality of limiting teeth away from the clamping wall, and the sliding member can move relative to the body.