Shoe and fixing component

Abstract

The utility model discloses a shoe and a fixing part. The shoe comprises a shoe body, a rope belt and a fixing part. The shoe body comprises a shoe tongue and two stringing parts. The rope belt penetrates out of the two rope penetrating parts to form two rope tail sections. The fixing part comprises a first annular base part, a second annular base part and a connecting part. The connecting part comprises two connecting walls and a separating rib. The separating rib is connected between the two connecting walls. The first annular base part, the separating rib and the second annular base part jointly form two rope penetrating channels which are communicated with a first through hole of the first annular base part and a second through hole of the second annular base part. The separation rib comprises two side walls located on the two opposite sides, and 50% of the inner diameter of the first through hole is larger than the distance from each side wall to the inner side wall of the first annular base part in the width direction. Therefore, the fixing component can avoid the use of a heat-shrinkable sleeve and can effectively fix the rope tail section of the rope belt, so that the use convenience is improved.

Description

Technical Field

[0001] The utility model relates to a pair of shoes and a fixing component, in particular to a pair of shoes capable of fixing a rope and a fixing component. Background Art

[0002] Most of the existing shoe straps are tied or sewn to end, and then beautified with heat shrink tubing. If the user wants to replace the strap, the heat shrink tubing must be cut off first, which makes the original strap unusable and the process is very inconvenient.

[0003] Furthermore, existing shoes are provided with two kinds of straps for different usage habits when purchased, so that users can easily change them. However, in this case, it is impossible to use a heat shrink tube to fix the rope tail, so that the rope tail can swing randomly due to the inability to fix it, which is not beautiful.

[0004] Therefore, the applicant believes that the above defects can be improved, and has made dedicated research and applied scientific principles to propose a utility model with a reasonable design that effectively improves the above defects. Utility Model Content

[0005] The embodiment of the utility model provides a shoe and a fixing component, which can effectively improve the defects that may be caused by the existing shoe and the fixing component.

[0006] The utility model embodiment discloses a shoe, comprising: a shoe body, including a tongue and two rope threading parts respectively located on both sides of the tongue; a rope belt, which is passed through the two rope threading parts and respectively passes through the two rope threading parts to form two rope tail sections; and a fixing component, comprising: a first annular base, an inner side wall of the first annular base surrounds a first through hole, and the first through hole has an inner diameter along a width direction; a second annular base, an inner side wall of the second annular base surrounds a second through hole, and the second annular base is spaced apart from the first annular base along a length direction perpendicular to the width direction; and a connecting part, comprising: two connecting walls, the two connecting walls are spaced apart from each other, and the two A connecting wall is connected between the first annular base and the second annular base along the length direction; and a partition rib, the partition rib is connected between the two connecting walls; wherein the first annular base, the partition rib and the second annular base together form two rope threading channels connecting the first through hole and the second through hole; wherein the partition rib includes two side walls located on opposite sides, 50% of the inner diameter of the first through hole is greater than the distance from each side wall to the inner wall of the first annular base along the width direction; and wherein the fixing component is used for allowing the two rope tail segments to pass through the first through hole and pass through the two rope threading channels respectively, and pass through part of the second through hole to fix the two rope tail segments.

[0007] Optionally, the partition rib also includes two ends and two first inclined surfaces, and a first inclined surface is formed between the end adjacent to the first annular base and each of the side walls; the first annular base has two guide surfaces facing each other and spaced apart, and the two guide surfaces are respectively arranged in the same plane with the two first inclined surfaces.

[0008] Optionally, the end away from the first annular base forms two second inclined surfaces with the two side walls, and the two second inclined surfaces are respectively parallel to the two first inclined surfaces.

[0009] Optionally, the second through hole has an inner diameter along the width direction, and the inner diameter of the first through hole is smaller than or equal to the inner diameter of the second through hole.

[0010] Optionally, the two rope tail segments each include a tail end, the tail end is located at the end of the rope tail segment, the tail end forms a covering shell, the inner diameter of the first through hole is smaller than the inner diameter of the second through hole, the two rope tail segments pass through the first through hole and pass through the two rope threading channels respectively, and the tail ends of the two rope tail segments stay in the second through hole.

[0011] Optionally, the length of the partition rib along the length direction is smaller than the length of the connecting wall along the length direction, and the partition rib can be located at any position between the first annular base and the second annular base.

[0012] Optionally, the partition rib is separated from the first annular base by a first configuration distance along the length direction, and the partition rib is separated from the second annular base by a second configuration distance along the length direction; wherein the first configuration distance is between 90% and 110% of the second configuration distance.

[0013] Optionally, the fixing component includes: a hooking portion, which is integrally connected to the second annular base and forms a buckle rope channel together with the connecting portion; wherein an entrance and exit connected to the buckle rope channel and facing the shoe body is formed between the end of the hooking portion and the connecting portion of the fixing component; and a guide portion, which is integrally connected to the end of the hooking portion and extends along the length direction away from the connecting portion.

[0014] Optionally, the fixing component further includes: a hooking portion, which is integrally connected to the second annular base and forms a rope buckle channel together with the connecting portion; wherein an entrance and exit connected to the rope buckle channel and facing the shoe body is formed between the end of the hooking portion and the connecting portion of the fixing component; and a stop portion, which is integrally connected to the end of the hooking portion and faces the connecting portion, so that the rope is stopped by the stop portion when it is located in the rope buckle channel.

[0015] The utility model embodiment also discloses a fixing component, comprising: a first annular base, an inner side wall of the first annular base surrounds a first through hole, and the first through hole has an inner diameter along a width direction; a second annular base, an inner side wall of the second annular base surrounds a second through hole, and the second annular base is spaced apart from the first annular base along a length direction perpendicular to the width direction; and a connecting portion, comprising: two connecting walls, the two connecting walls are spaced apart from each other, and the two connecting walls are connected between the first annular base and the second annular base along the length direction; and a partition rib, the partition rib is connected between the two connecting walls; wherein the first annular base, the partition rib and the second annular base together form two rope threading channels connecting the first through hole and the second through hole; wherein the partition rib comprises two side walls located on opposite sides, and 50% of the inner diameter of the first through hole is greater than the distance from each side wall to the inner side wall of the first annular base along the width direction.

[0016] To summarize, the shoes and fixing components disclosed in the embodiments of the utility model can avoid the use of heat shrink tubing and effectively fix the rope tail section of the rope through the technical solutions of "the first annular base, the partition rib and the second annular base jointly form two rope threading channels connecting the first through hole and the second through hole" and "50% of the inner diameter of the first through hole is greater than the distance from each side wall to the inner wall of the first annular base along the width direction", thereby increasing convenience in use.

[0017] In order to further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, such description and drawings are only used to illustrate the present invention and are not intended to limit the scope of protection of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the shoe in the first embodiment of the present invention when the tail section of the rope is fixed.

[0019] Figure 2It is a three-dimensional schematic diagram of the fixing component of the first embodiment of the utility model.

[0020] Figure 3 for Figure 2 Schematic cross-sectional view along section line III-III.

[0021] Figure 4 for Figure 1 A cross-sectional schematic diagram showing the use status between the fixing component and the rope belt.

[0022] Figure 5 for Figure 4 Schematic cross-sectional view of subsequent actuation.

[0023] Figure 6 It is a three-dimensional schematic diagram of the fixing component of the second embodiment of the utility model.

[0024] Figure 7 for Figure 6 Sectional view along section line VII-VII.

[0025] Figure 8 for Figure 6 Schematic diagram of the usage status between the fixing component and the rope.

[0026] Fig. 9 It is a three-dimensional schematic diagram of the fixing component of the third embodiment of the present utility model.

[0027] Fig.10 for Fig. 9 Schematic diagram of the usage status between the fixing component and the rope.

[0028] Fig.11 It is a three-dimensional schematic diagram of the fixing component of the fourth embodiment of the utility model. DETAILED DESCRIPTION

[0029] The following is an explanation of the implementation methods of the "shoes and fixing parts" disclosed in the present utility model through specific embodiments. Those skilled in the art can understand the advantages and effects of the present utility model from the contents disclosed in this specification. The present utility model can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present utility model. In addition, it should be stated in advance that the drawings of the present utility model are only simple schematic illustrations and are not depicted according to actual sizes. The following implementation methods will further explain the relevant technical contents of the present utility model in detail, but the disclosed contents are not intended to limit the scope of protection of the present utility model.

[0030] It should be understood that, although the terms "first", "second", "third", etc. may 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 may include any one or more combinations of the associated listed items depending on the actual situation.

[0031] [Example 1]

[0032] See also Figures 1 to 5 As shown, it is the first embodiment of the present utility model. Figure 1 As shown, this embodiment discloses a shoe 100, which includes a shoe body 1, a rope 2 inserted through the shoe body 1, and a fixing member 3 installed on the rope 2. The structures of each component of the shoe 100 will be described below, and then the connection relationship thereof will be introduced in due course.

[0033] The shoe body 1 includes a shoe tongue 11 and two rope threading portions 12 located on both sides of the shoe tongue 11, and the two rope threading portions 12 are substantially symmetrical to the shoe tongue 11, but the present invention is not limited thereto. It should be noted that the two rope threading portions 12 can be separately configured on the shoe body 1 or directly formed by perforating the shoe body 1 according to actual needs.

[0034] The strap 2 is an elastic strap in this embodiment, but the present invention is not limited thereto. The strap 2 is inserted through the two strap-through portions 12 and passes through the two strap-through portions 12 to form two strap tails 21. In other words, the two strap tails 21 pass through the two strap-through portions 12 adjacent to the free ends of the shoe tongue 11.

[0035] like Figure 2 and Figure 3 As shown, the fixing component 3 includes a first annular base 31 , a second annular base 32 spaced apart from the first annular base 31 , and a connecting portion 33 connected between the first annular base 31 and the second annular base 32 .

[0036] The first annular base 31 is generally shaped like an ellipsoid, and an inner side wall 311 of the first annular base 31 surrounds and forms a first through hole P1. The first through hole P1 is an elliptical hole in this embodiment, but the present invention is not limited thereto. For example, in other embodiments not shown in the present invention, the first through hole P1 may also be a circular hole, a rectangular hole, or adjusted according to actual design requirements. The first annular base 31 has an inner diameter R1 along a width direction W.

[0037] The shape of the second annular base 32 corresponds to the shape of the first annular base 31 and is generally an ellipsoid, but the present invention is not limited thereto. For example, in other embodiments not shown in the present invention, the shape of the second annular base 32 may be different from the shape of the first annular base 31 (e.g., the shape of the second annular base 32 is a circular body or a rectangular body). In this embodiment, an inner side wall 321 of the second annular base 32 surrounds and forms a second through hole P2, and the second through hole P2 corresponds to the first through hole P1 and is an elliptical hole, but the present invention is not limited thereto. For example, in other embodiments not shown in the present invention, the second through hole P2 may not correspond to the first through hole P1, but may be a circular hole, a rectangular hole, or may be adjusted according to actual design requirements.

[0038] Furthermore, the second annular base 32 is spaced apart from the first annular base 31 along a length direction L perpendicular to the width direction W. The second annular base 32 has an inner diameter R2 along the width direction W. It should be noted that the inner diameter R1 of the first annular base 31 is smaller than the inner diameter R2 of the second annular base 32, but the present invention is not limited thereto. For example, the inner diameter R1 of the first annular base 31 can be designed to be greater than or equal to the inner diameter R2 of the second annular base 32 according to actual needs.

[0039] The connecting portion 33 is located between the first annular base 31 and the second annular base 32 along the length direction L. In the present embodiment, the first annular base 31, the connecting portion 33, and the second annular base 32 are integrally formed as a single piece, but the present invention is not limited thereto. The connecting portion 33 includes two connecting walls 331 and a partition rib 332 connected between the two connecting walls 331. Each of the connecting walls 331 is generally shaped like a rectangular plate, but the present invention is not limited thereto. The two connecting walls 331 are spaced apart from each other, and each of the connecting walls 331 is connected between the first annular base 31 and the second annular base 32 along the length direction L.

[0040] The partition rib 332 is connected between the two connecting walls 331 so that the two connecting walls 331 can be spaced apart from each other. The first annular base 31, the partition rib 332 and the second annular base 32 together form two rope threading channels connected to the first through hole P1 and the second through hole P2. In this embodiment, the partition rib 332 includes two side walls 3321 located on opposite sides, and 50% of the inner diameter R1 of the first through hole P1 is greater than the distance DH1 from each side wall 3321 along the width direction W to the inner side wall 3321 of the first annular base 31, thereby limiting the two rope tail sections 21 from sliding between the two rope threading channels, but the utility model is not limited thereto.

[0041] In addition, the partition rib 332 is separated from the first annular base 31 by a first configuration distance D1 along the length direction L, and the partition rib 332 is separated from the second annular base 32 by a second configuration distance D2 along the length direction L. In this embodiment, the first configuration distance D1 is between 90% and 110% of the second configuration distance D2. The first configuration distance D1 is preferably 100% of the second configuration distance D2, but the present invention is not limited thereto.

[0042] For example, the first configuration distance D1 can also be designed to be a percentage other than 90% to 110% of the second configuration distance D2. In other words, the length of the partition rib 332 along the length direction L is less than the length of the connecting wall 331 along the length direction L, and the partition rib 332 can be located at any position between the first annular base 31 and the second annular base 32, so that the location of the partition rib 332 can be adjusted according to actual design requirements.

[0043] As described above, the fixing member 3 is used for allowing the two rope tail sections 21 to pass through the first through hole P1 and respectively through the two rope threading channels, and partially pass through the second through hole P2, so as to fix the two rope tail sections 21.

[0044] like Figures 3 to 5 As shown, the partition rib 332 further includes two ends 3322 and two first inclined surfaces 3323. A first inclined surface 3323 is formed between the end 3322 adjacent to the first annular base 31 and each of the side walls 3321; the first annular base 31 has two guide surfaces 312. The two guide surfaces 312 (along the width direction W) face each other and are spaced apart and are respectively arranged in a coplanar manner with the two first inclined surfaces 3323.

[0045] In detail, in order to facilitate the formation of the two guide surfaces 312 on the first annular base 31, the first annular base 31 can form an inclined surface 313 on the upper edge of the inner wall 311 away from the partition rib 332, and the inclined surface 313 is arranged around the first annular base 31 along the edge of the first through hole P1. In this embodiment, the inclined surface 313 already includes two guide surfaces 312, but the utility model is not limited thereto. For example, in other embodiments not shown in the utility model, the first annular base 31 forms two guide surfaces 312 at positions corresponding to the two first inclined surfaces 3323, so that the two guide surfaces 312 are respectively arranged coplanar with the two first inclined surfaces 3323.

[0046] like Figures 3 to 5 As shown, the end 3322 away from the first annular base 31 and the two side walls 3321 form two second inclined surfaces 3324, and the two second inclined surfaces 3324 are respectively parallel to the two first inclined surfaces 3323, so that any rope tail segment 21 of the rope 2 can pass through the second inclined surface 3324 and pass through the second through hole P2, thereby achieving the purpose of quick rope threading.

[0047] In addition, the two rope tail sections 21 each include a tail end 211. That is, the tail end 211 is located at the end of the rope tail section 21, and the tail end 211 is formed with a covering shell 212 to facilitate the rope belt 2 to pass through the covering shell for threading. The covering shell 212 is a plastic shell, but the utility model is not limited thereto.

[0048] like Figures 3 to 5 As shown, in this embodiment, the inner diameter R1 of the first through hole P1 is smaller than the inner diameter R2 of the second through hole P2, and the two rope tail segments 21 are inserted from the first through hole P1 and pass through the two rope threading channels respectively, and the tail ends 211 of the two rope tail segments 21 stay in the second through hole P2, so as to avoid the use of heat shrink tubing and effectively fix the rope tail segment 21 of the rope belt 2, thereby increasing the convenience of use.

[0049] [Example 2]

[0050] See also Figures 6 to 8 As shown, it is the second embodiment of the present utility model. Since this embodiment is similar to the above-mentioned first embodiment, the similarities between the two embodiments will not be repeated, and the differences between this embodiment and the above-mentioned first embodiment are roughly described as follows:

[0051] like Figures 6 to 8As shown, the size of the second annular base 32 is equal to the size of the first annular base 31. In detail, the inner diameter R2 of the second through hole P2 is equal to the inner diameter R1 of the first through hole P1 (as shown in FIG. Figure 7 Furthermore, 50% of the inner diameter R2 of the second through hole P2 is greater than the distance from the side wall 3321 of each partition rib 332 along the width direction W to the inner side wall 321 of the second annular base 32 (as shown in FIG. Figure 7 Therefore, the first through hole P1 and the second through hole P2 can both restrict the two rope tail segments 21 from sliding between the two rope threading channels, so that the two rope tail segments 21 are neatly arranged together through the first through hole P1 and the second through hole P2 of the fixing component 3 (as shown in FIG. Figure 8 as shown).

[0052] [Example 3]

[0053] See also Fig. 9 and Fig.10 As shown, it is the third embodiment of the present utility model. Since this embodiment is similar to the above embodiment, the same points between this embodiment and the above embodiment will not be described in detail, and the differences between this embodiment and the above embodiment 1 are roughly described as follows:

[0054] like Figure 8 As shown, the fixing component 3 further includes a hooking portion 34 and a guiding portion 35 connected to the hooking portion 34. The hooking portion 34 is integrally connected to the second annular base 32, but the utility model is not limited thereto. For example, the hooking portion 34 can also be integrally connected to the first annular base 31. The hooking portion 34 and the connecting portion 33 together form a buckle cord channel. A buckle cord channel connected to the buckle cord channel and facing the shoe body 1 (such as Fig.10 An entrance and exit as shown).

[0055] The guide portion 35 is integrally connected to the end of the hooking portion 34 and is formed to extend away from the connecting portion 33 along the length direction L. In this embodiment, the guide portion 35 can extend into the rope 2 between the two rope threading portions 12, so that the rope 2 is located in the rope buckle channel through the guide portion 35, and the fixing component 3 is fixed to the rope 2 between the two rope threading portions 12.

[0056] [Example 4]

[0057] See also Fig.11As shown, it is the fourth embodiment of the utility model. Since this embodiment is similar to the above embodiment, the same points between this embodiment and the above embodiment will not be repeated, and the differences between this embodiment and the above embodiment 1 are roughly described as follows:

[0058] like Fig.11 As shown, the fixing component 3 further includes a hooking portion 36. The hooking portion 36 is integrally connected to the second annular base 32, but the present invention is not limited thereto. For example, the hooking portion 36 can also be integrally connected to the first annular base 31. The hooking portion 36 and the connecting portion 33 together form a buckle cord channel. An entrance and exit connected to the buckle cord channel and facing the shoe body 1 is formed between the end of the hooking portion 36 and the connecting portion 33 of the fixing component 3.

[0059] The stopper 37 is integrally connected to the end of the hooking portion 36 and faces the connecting portion 33, so that the stopper 37 abuts against the rope 2 when the rope 2 is located in the rope buckle channel. In this embodiment, the hooking portion 36 can extend into the rope 2 between the two rope threading portions 12 (such as Figure 1 As shown in the figure, the rope 2 is located in the buckle channel, and the rope 2 abuts against the stopper 37. Therefore, the fixing member 3 is fixed to the rope 2 between the two rope threading parts 12, and the stopper 37 abuts against the rope 2 between the two rope threading parts 12 (as shown in the figure). Fig.10 As shown), the fixing component 3 is not easy to fall off from the shoe 100.

[0060] [Technical effects of the utility model embodiment]

[0061] In summary, the shoes and fixing components disclosed in the embodiments of the utility model can avoid the use of heat shrink tubing and effectively fix the rope tail section of the rope through the technical solutions of "the first annular base, the dividing rib and the second annular base together form two rope threading channels connecting the first through hole and the second through hole" and "50% of the inner diameter of the first through hole is greater than the distance from each side wall to the inner wall of the first annular base along the width direction", thereby increasing convenience in use.

[0062] The contents disclosed above are only preferred feasible embodiments of the present utility model, and are not intended to limit the patent scope of the present utility model. Therefore, all equivalent technical changes made using the contents of the present utility model specification and drawings are included in the patent scope of the present utility model.

Claims

1. A shoe, characterized in that: The shoes include: A shoe body, comprising a shoe tongue and two rope threading parts respectively located on both sides of the shoe tongue; a rope belt, which is passed through the two rope passing parts and respectively passes through the two rope passing parts to form two rope tail sections; and A fixing component, comprising: A first annular base, wherein an inner side wall of the first annular base surrounds and forms a first through hole, and the first through hole has an inner diameter along a width direction; a second annular base, an inner side wall of the second annular base surrounding a second through hole, the second annular base being spaced apart from the first annular base along a length direction perpendicular to the width direction; and A connecting portion, comprising: two connecting walls, the two connecting walls are spaced apart from each other and connected between the first annular base and the second annular base along the length direction; and a partition rib, the partition rib being connected between the two connecting walls; wherein the first annular base, the partition rib and the second annular base together form two rope threading channels connecting the first through hole and the second through hole; Wherein, the partition rib comprises two side walls located on opposite sides, and 50% of the inner diameter of the first through hole is greater than the distance from each side wall to the inner side wall of the first annular base along the width direction; and The fixing component is used for allowing the two rope tail sections to pass through the first through hole and respectively pass through the two rope threading channels and partially pass through the second through hole, so as to fix the two rope tail sections.

2. The shoe according to claim 1, characterized in that: The partition rib also includes two ends and two first inclined surfaces, and one first inclined surface is formed between the end adjacent to the first annular base and each of the side walls; the first annular base has two guide surfaces facing each other and arranged at intervals, and the two guide surfaces are respectively arranged in the same plane with the two first inclined surfaces.

3. The shoe according to claim 2, characterized in that: The end away from the first annular base forms two second inclined surfaces with the two side walls, and the two second inclined surfaces are respectively parallel to the two first inclined surfaces.

4. The shoe according to claim 1, characterized in that: The second through hole has an inner diameter along the width direction, and the inner diameter of the first through hole is smaller than or equal to the inner diameter of the second through hole.

5. The shoe according to claim 4, characterized in that: The two rope tail sections each include a tail end, and the tail end is located at the end of the rope tail section. The tail end forms a covering shell, and the inner diameter of the first through hole is smaller than the inner diameter of the second through hole. The two rope tail sections pass through the first through hole and pass through the two rope threading channels respectively, and the tail ends of the two rope tail sections stay in the second through hole.

6. The shoe according to claim 1, characterized in that: The length of the partition rib along the length direction is smaller than the length of the connecting wall along the length direction, and the partition rib can be located at any position between the first annular base and the second annular base.

7. The shoe according to claim 6, characterized in that: The partition rib is spaced apart from the first annular base by a first configuration distance along the length direction, and the partition rib is spaced apart from the second annular base by a second configuration distance along the length direction; wherein the first configuration distance is between 90% and 110% of the second configuration distance.

8. The shoe according to claim 1, characterized in that: The fixing component comprises: a hooking portion, the hooking portion is integrally connected to the second annular base and forms a buckle cord channel together with the connecting portion; wherein an entrance and exit communicating with the buckle cord channel and facing the shoe body is formed between the end of the hooking portion and the connecting portion of the fixing component; and A guiding portion is integrally connected to the end section of the hooking portion and is formed by extending away from the connecting portion along the length direction.

9. The shoe according to claim 1, characterized in that: The fixing component further comprises: a hooking portion, the hooking portion is integrally connected to the second annular base and forms a buckle cord channel together with the connecting portion; wherein an entrance and exit communicating with the buckle cord channel and facing the shoe body is formed between the end of the hooking portion and the connecting portion of the fixing component; and A stopper is integrally connected to the end section of the hooking portion and faces the connecting portion, so that the rope belt is stopped by the stopper when located in the rope buckle channel.

10. A fixing component, characterized in that: The fixing member comprises: A first annular base, wherein an inner side wall of the first annular base surrounds and forms a first through hole, and the first through hole has an inner diameter along a width direction; a second annular base, an inner side wall of the second annular base surrounding a second through hole, the second annular base being spaced apart from the first annular base along a length direction perpendicular to the width direction; and A connecting portion, comprising: two connecting walls, the two connecting walls are spaced apart from each other and connected between the first annular base and the second annular base along the length direction; and a partition rib, the partition rib being connected between the two connecting walls; wherein the first annular base, the partition rib and the second annular base together form two rope threading channels connecting the first through hole and the second through hole; The partition rib includes two side walls located on opposite sides, and 50% of the inner diameter of the first through hole is greater than the distance from each side wall to the inner side wall of the first annular base along the width direction.

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