A slide rail four-piece snap fastener

Abstract

The present application discloses a sliding rail snap fastener, which includes a female snap fastener and a male snap fastener. The male snap fastener includes: a bottom piece, which is arranged in a strip shape, and is provided with a hexagonal slot sliding rail distributed along its length direction, and the hexagonal slot sliding rail includes a plurality of regular hexagonal grooves, and the plurality of regular hexagonal grooves are connected in series; a button bead assembly, which is slidably arranged on the hexagonal slot sliding rail, and includes a button bead that is fastened with the female snap fastener, and a fixed shaft is arranged at the end of the button bead away from the female snap fastener, and a sliding shaft is arranged at the end of the fixed shaft away from the button bead; wherein both the fixed shaft and the sliding shaft pass through the hexagonal slot sliding rail, and slide axially along the fixed shaft and / or the sliding shaft, and when the fixed shaft slides to the same plane as the hexagonal slot sliding rail, the fixed shaft is engaged with any regular hexagonal groove; when the sliding shaft slides to the same plane as the hexagonal slot sliding rail, the button bead assembly can slide along the hexagonal slot sliding rail. Therefore, the sliding snap fastener arranged in the above manner can realize the function of sliding the fastening point in two directions on the fabric and locking it at a fixed position.

Description

Technical Field

[0001] This application relates to the technical field of buttons, and particularly to a slide rail snap fastener. Background Art

[0002] The snap fastener is a commonly used connecting tool for connecting two lapels, and mainly plays a role in snap connection. As shown in the attached Figure 1 description, the existing snap fastener usually includes a female button 1 and a male button 2. Among them, a middle hole 11 is provided on the female button 1, and two parallel spring pieces are provided in the middle hole 11. A button bead 21 is provided on the male button 2. After the button bead 21 is pressed into the middle hole 11 of the female button 1, it is clamped by the spring pieces, thereby generating an opening and closing force to combine two layers of fabric; it can also be easily pulled out to separate the fabric.

[0003] Again, as shown in the attached Figure 2 description, it is a multi-hole snap fastener. The button bead 21 on the male button can be snapped into different middle holes 11 for adjustment of the closing position.

[0004] For the snap fastener in the attached Figure 1 description, since the male button 2, the female button 1 of the snap fastener are respectively fixed to two layers of fabric, the fabric combination position cannot be adjusted after the overall snap connection. For example, in application scenarios such as tightening the cuffs, there are obstacles in the adjustment form; for the multi-hole snap fastener in the attached Figure 2 description, although there are multiple choices in the adjustment form, when adjusting, the male button 2 needs to be detached from the female button 1 and then snapped again, and the use experience is not good, and it cannot be adjusted quickly and stably.

[0005] Therefore, in view of the above problems, how to design a slide rail snap fastener with convenient use, stable snap connection, and smooth adjustment and fixation of the position is a technical problem that those skilled in the art need to solve. Summary of the Invention

[0006] The purpose of this application is to provide a slide rail snap fastener, which can achieve stable pressing, labor-saving detachment, and at the same time realize the two-way sliding of the snap point on the fabric and the locking function at the fixed position.

[0007] To achieve the above purpose, this application provides a slide rail snap fastener, which includes a female button and a male button that snaps with the female button. The male button includes:

[0008] A bottom piece, fixed to the fabric and arranged in a strip shape. A hexagonal groove slide rail is arranged on the strip-shaped bottom piece along its length direction. The hexagonal groove slide rail includes a plurality of identical regular hexagonal grooves, and the plurality of regular hexagonal grooves are connected in series;

[0009] The button bead assembly is slidably arranged on the hexagonal groove slide rail. It includes a button bead that is buckled with the female buckle. A fixed shaft is arranged at the end of the button bead facing away from the female buckle. An upper limit piece is arranged between the fixed shaft and the button bead. A sliding shaft is arranged at the end of the fixed shaft facing away from the button bead. A lower limit piece is arranged at the end of the sliding shaft facing away from the fixed shaft. And the upper limit piece and the lower limit piece are respectively located on both sides of the hexagonal groove slide rail;

[0010] Wherein, both the fixed shaft and the sliding shaft penetrate through the hexagonal groove slide rail and can slide axially along the fixed shaft and / or the sliding shaft. When the fixed shaft slides to the same plane as the hexagonal groove slide rail, the fixed shaft is clamped with any one of the regular hexagonal grooves; when the sliding shaft slides to the same plane as the hexagonal groove slide rail, the button bead assembly can slide along the length direction of the hexagonal groove slide rail.

[0011] Preferably, the fixed shaft is a hexagonal frustum fixed shaft, and the orthographic projection of the hexagonal frustum fixed shaft in the direction of any one of the regular hexagonal grooves is contained within the regular hexagonal groove, so that the hexagonal frustum fixed shaft slides axially and disengages from or extends into the regular hexagonal groove.

[0012] Preferably, the width value of the smallest part of the hexagonal frustum fixed shaft is greater than the side length of the regular hexagonal groove, so that the hexagonal frustum fixed shaft is clamped in the regular hexagonal groove.

[0013] Preferably, the sliding shaft is a conical frustum sliding shaft, and the diameter of the smallest part of the conical frustum sliding shaft is less than the side length of the regular hexagonal groove, so that the sliding shaft slides along the length direction of the hexagonal groove slide rail.

[0014] Preferably, the orthographic projections of the upper limit piece and / or the lower limit piece in the direction of the regular hexagonal groove cover the regular hexagonal groove, and are used to limit at least one of the fixed shaft or the sliding shaft to be located within the hexagonal groove slide rail.

[0015] Preferably, the female buckle includes:

[0016] A buckle body, with a central hole for buckling with the button bead arranged at the center;

[0017] A buckle surface, located on the end face of the buckle body facing away from the button bead, includes a straight flute extending into and clamped with the central hole and a round table connected to the straight flute and abutted against the end face of the buckle body. The round table and the buckle body are jointly used to clamp the fabric.

[0018] Preferably, an anti-slip strip is arranged on the end face of the round table facing away from the buckle body.

[0019] Preferably, the bottom piece is made of TPU soft plastic material, and a table top arched facing the female buckle is provided at the hexagonal groove slide rail to provide space for the fixed shaft, the sliding shaft and the lower limit plate.

[0020] Preferably, the bottom piece is provided with seam edges sewn with the fabric around its periphery.

[0021] Preferably, the inner walls of the hexagonal groove slide rails are all beveled.

[0022] Compared with the above-mentioned background technology, the slide rail four-button buckle of the present application is provided with a hexagonal groove slide rail on the base part, and the hexagonal groove slide rail includes multiple identical regular hexagonal grooves, and the multiple regular hexagonal grooves are arranged in series; at the same time, the button bead assembly is slidably set in the hexagonal groove slide rail, and the button bead in the button bead assembly is buckled with the mother buckle. When the buckling point of the mother buckle needs to be adjusted, the button bead assembly is lifted so that the sliding shaft is in the hexagonal groove slide rail. At this time, the sliding shaft can slide along the length direction of the hexagonal groove slide rail. After the button bead assembly and the mother buckle slide to the appropriate position, press the mother buckle to make the fixed shaft in the button bead assembly extend into the hexagonal groove slide rail, thereby realizing the snap connection between the button bead assembly and the hexagonal groove slide rail.

[0023] Specifically, the bottom piece is fixed on the fabric and is arranged in a strip shape. Of course, the length direction of the strip needs to be consistent with the direction to be adjusted; the button bead assembly includes a button bead, a fixed shaft and a sliding shaft. Both the fixed shaft and the sliding shaft pass through the hexagonal groove slide rail and can slide along its axial direction to facilitate the sliding or fixed adjustment of the button bead assembly. When the fixed shaft slides to the same plane as the hexagonal groove slide rail, the fixed shaft is engaged with any regular hexagonal groove; when the sliding shaft slides to the same plane as the hexagonal groove slide rail, the button bead assembly can slide along the length direction of the hexagonal groove slide rail. Therefore, the sliding four-in-one buckle arranged in the above manner can realize the function of sliding the buckle point in two directions on the fabric and locking it in a fixed position. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0025] Figure 1 It is a schematic diagram of a four-button structure in the prior art;

[0026] Figure 2 It is a schematic diagram of another multi-hole snap-on structure in the prior art;

[0027] Figure 3Schematic diagram of the overall structure of the sliding rail four-piece buckle provided by the embodiment of the present application;

[0028] Figure 4 Schematic diagram of the button bead assembly structure of the sliding rail four-piece buckle provided by the embodiment of the present application;

[0029] Figure 5 Schematic diagram of the bottom piece setting structure of the sliding rail four-piece buckle provided by the embodiment of the present application;

[0030] Figure 6 Schematic diagram of the structure of the button bead assembly of the sliding rail four-piece buckle when it is in a sliding state;

[0031] Figure 7 Schematic diagram of the structure of the button bead assembly of the sliding rail four-piece buckle when it is in a fixed state;

[0032] Figure 8 Schematic diagram of the female buckle setting structure of the sliding rail four-piece buckle provided by the embodiment of the present application.

[0033] In the figure: 1. Female buckle 2. Male buckle 11. Intermediate hole 12. Buckle body 13. Round platform 14. Central hole 15. Straight flute 16. Anti-slip strip 21. Button bead 22. Bottom piece 23. Hexagonal groove sliding rail 24. Upper limit piece 25. Fixed shaft 26. Sliding shaft 27. Lower limit piece 28. Sewing edge. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0035] In order to enable those skilled in the art of this technology to better understand the solution of the present application, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0036] As shown in the specification appendix Figures 3 to 8As shown, in this embodiment, a slide rail four-piece snap is provided. The four-piece snap includes a female snap 1 and a male snap 2. Similar to the prior art, the male snap 2 of this application needs to be snapped with the female snap 1 to ensure the snap connection function of the four-piece snap. Of course, the male snap 2 and the female snap 1 are respectively arranged on two different fabrics, so as to realize the stable connection of the two fabrics. Among them, the male snap 2 includes a bottom piece 22 and a button bead assembly. The bottom piece 22 is fixed on a group of fabrics and is arranged in a long strip shape. Here, the long strip shape has a certain width, and a hexagonal groove slide rail 23 is arranged on the strip-shaped bottom piece 22 along its length direction. It should be noted that the length direction of the bottom piece 22 refers to the direction in which the snap point of the female snap 1 needs to be adjusted. According to different application scenarios, the length direction here can be set according to the actual situation, as long as the setting direction of the hexagonal groove slide rail 23 is consistent with the length direction of the bottom piece 22.

[0037] Furthermore, for the above-mentioned hexagonal groove slide rail 23, it includes a plurality of identical regular hexagonal grooves, and each adjacent regular hexagonal groove is connected in series. It should be noted that the regular hexagonal structure here is only one case given in this embodiment, and it can also be set as a pentagonal structure or other structures with more than five sides.

[0038] For the above-mentioned button bead assembly, it is slidably arranged on the hexagonal groove slide rail 23. It includes a button bead 21 that snaps with the above-mentioned female snap 1. And a fixing shaft 25 is arranged at the end of the button bead 21 facing away from the female snap 1. An upper limiting piece 24 is arranged between the fixing shaft 25 and the button bead 21. A sliding shaft 26 is arranged at the end of the fixing shaft 25 facing away from the button bead 21. A lower limiting piece 27 is arranged at the end of the sliding shaft 26 facing away from the fixing shaft 25. And the upper limiting piece 24 and the lower limiting piece 27 are respectively located on both sides of the hexagonal groove slide rail 23, and are used to limit the fixing shaft 25 or the limiting shaft in the hexagonal groove slide rail 23.

[0039] It should be noted that both the fixing shaft 25 and the sliding shaft 26 penetrate through the hexagonal groove slide rail 23 and can slide axially along the fixing shaft 25 and / or the sliding shaft 26. When the fixing shaft 25 slides to the same plane as the hexagonal groove slide rail 23, the fixing shaft 25 is clamped with any regular hexagonal groove. When the sliding shaft 26 slides to the same plane as the hexagonal groove slide rail 23, the button bead assembly can slide along the length direction of the hexagonal groove slide rail 23. When it is said that the fixing shaft 25 slides to the same plane as the hexagonal groove slide rail 23, it means that when the button bead assembly is in a fixed state, as Figure 7 shown, at this time, the fixing shaft 25 can be clamped with the regular hexagonal groove in the hexagonal groove slide rail 23, playing a role in fixing the button bead assembly, and thus playing a role in fixing the female snap 1.

[0040] When the sliding shaft 26 slides to the same plane as the hexagonal groove slide rail 23, the button bead assembly can slide along the length direction of the hexagonal groove slide rail 23. That is to say, the above-mentioned button bead assembly has two states. One is the fixed state, that is, the fixed shaft 25 is clamped with the hexagonal groove slide rail 23; the other is the sliding state, that is, the sliding shaft 26 is located in the hexagonal groove slide rail 23, so as to ensure that the female buckle 1 can adjust the buckling point without separating from the male buckle 2.

[0041] Combining the above embodiments, the sliding four-in-one buckle of the present application is provided with a hexagonal groove slide rail 23 on the bottom piece 22. The hexagonal groove slide rail 23 includes a plurality of identical regular hexagonal grooves, and the plurality of regular hexagonal grooves are arranged in series; at the same time, the button bead assembly is slidably arranged in the hexagonal groove slide rail 23, and the button bead 21 in the button bead assembly is buckled with the female buckle 1. When it is necessary to adjust the buckling point of the female buckle 1, the button bead assembly is lifted so that the sliding shaft 26 is located in the hexagonal groove slide rail 23. At this time, the sliding shaft 26 can slide along the length direction of the hexagonal groove slide rail 23. After the button bead assembly and the female buckle 1 slide to the appropriate positions, the female buckle 1 is pressed so that the fixed shaft 25 in the button bead assembly extends into the hexagonal groove slide rail 23, thereby realizing the clamping of the button bead assembly and the hexagonal groove slide rail 23.

[0042] Further, the above-mentioned bottom piece 22 is fixed on the fabric and is arranged in a strip shape. Of course, the length direction of the strip needs to be consistent with the direction to be adjusted; the button bead assembly includes a button bead 21, a fixed shaft 25 and a sliding shaft 26. Both the fixed shaft 25 and the sliding shaft 26 penetrate through the hexagonal groove slide rail 23 and can slide along its axial direction, so as to facilitate the adjustment of the sliding or fixing of the button bead assembly. When the fixed shaft 25 slides to the same plane as the hexagonal groove slide rail 23, the fixed shaft 25 is clamped with any regular hexagonal groove; when the sliding shaft 26 slides to the same plane as the hexagonal groove slide rail 23, the button bead assembly can slide along the length direction of the hexagonal groove slide rail 23. Therefore, the sliding four-in-one buckle arranged in the above manner can realize the function of sliding in two directions and locking at a fixed position of the buckling point on the fabric.

[0043] In this embodiment, in order to use the above-mentioned regular hexagonal groove, the fixed shaft 25 is set as a hexagonal prism fixed shaft here, specifically a regular hexagonal prism fixed shaft, and the orthographic projection of the hexagonal prism fixed shaft in any direction of the regular hexagonal groove is included in the regular hexagonal groove to ensure that the hexagonal prism fixed shaft can slide along its axial direction, and at the same time of sliding, it can ensure that the hexagonal prism fixed shaft can disengage from or extend into the regular hexagonal groove; of course, as mentioned above, the regular hexagonal groove can be other setting methods different from the hexagonal structure, but it is necessary to ensure that the number of edges of the regular hexagonal groove and the hexagonal prism fixed shaft corresponds, and their structures also correspond.

[0044] In addition, on the basis of the above embodiments, the fixed shaft 25 can also be set to a triangular or quadrilateral structure. However, for a triangular or quadrilateral structure, in order to ensure the clamping effect between the button bead assembly and the base member 22, the hexagonal groove slide rail 23 also needs to be adjusted to a triangular or quadrilateral slide rail. However, the triangular slide rail or the quadrilateral slide rail cannot be grooved along its entire side length to avoid the situation where the fixed shaft 25 cannot be clamped with the triangular slide rail or the quadrilateral slide rail. That is to say, the grooving width of the triangular or quadrilateral slide rail needs to be less than the side length of the triangular or quadrilateral, leaving a certain clamping part. For the specific setting method, it will not be elaborated here, as long as it is ensured that the fixed shaft 25 can be clamped with the base member 22.

[0045] In this embodiment, only the hexagonal groove slide rail 23 being a regular hexagonal groove structure is described in detail. For the setting methods of other structural forms, they will not be elaborated here. Among them, the width value of the smallest part of the above hexagonal prism fixed shaft needs to be greater than the side length of the regular hexagonal groove to ensure that the hexagonal prism fixed shaft can be clamped in the regular hexagonal groove.

[0046] It should be noted that for the above hexagonal prism fixed shaft, in order to ensure its stable effect within the hexagonal groove slide rail 23, the fixed shaft 25 can also be set as a hexagonal prism fixed shaft; the hexagonal structures at each cross-section of the hexagonal prism fixed shaft can be clamped with the above regular hexagonal groove, and can be set close to the side length of the regular hexagonal groove to reduce the gap between the fixed shaft 25 and the regular hexagonal groove and improve the clamping stability between the two. Similarly, the hexagonal prism or the regular hexagonal groove can also be set as other polygon structures, but it is necessary to ensure that the two can be stably clamped and can be separated from each other.

[0047] In addition, for the above sliding shaft 26, in this embodiment, the sliding shaft 26 is set as a frustum sliding shaft, and the diameter of the smallest part of the frustum sliding shaft is less than the side length of the regular hexagonal groove, so as to facilitate the sliding of the sliding shaft 26 along the length direction of the hexagonal groove slide rail 23. It should be noted that the sliding shaft 26 here includes but is not limited to the sliding shaft 26 of the above frustum shape, and can also be a sliding shaft 26 of other structural forms, but it is necessary to ensure that the sliding shaft 26 can slide along the length direction of the hexagonal groove slide rail 23.

[0048] On the basis of the above embodiments, in order to further improve the stability of the button bead assembly within the hexagonal groove slide rail 23, the positive projections of the above upper limit piece 24 and / or the lower limit piece 27 in the direction of the regular hexagonal groove cover the regular hexagonal groove, thereby playing a role in limiting the button bead assembly and ensuring that at least one of the fixed shaft 25 or the sliding shaft 26 is within the hexagonal groove slide rail 23 to prevent the button bead assembly from detaching from the base member 22.

[0049] Of course, for the above-described setting method of the female buckle 1, which includes a buckle body 12 and a buckle surface. Similar to the prior art, a central hole 14 for engaging with the button bead 21 is provided at the center of the buckle body 12, a straight flute 15 is provided on the buckle surface, and the straight flute 15 passes through a fabric different from the bottom piece 22 and then is inserted into the central hole 14 and fixed thereto through the notch on the buckle body 12. There can be various specific fixing methods for the straight flute 15 and the buckle body 12, which will not be elaborated here one by one. For details, please refer to the prior art. Different from the prior art, the straight flute 15 is connected with a frustum 13, and both the frustum 13 and the buckle body 12 are used to clamp the above-mentioned fabric. The frustum 13 adopts an elastic paint process, and an anti-slip strip 16 is provided on the end face of the frustum 13 facing away from the buckle body 12, which is convenient for pressing or pushing the female buckle 1.

[0050] In addition, the above-mentioned bottom piece 22 is preferably made of TPU soft plastic material, and a table surface arched towards the female buckle 1 is provided at the hexagonal groove slide rail 23 for providing space for the fixed shaft 25, the sliding shaft 26 and the lower limit piece 27. As Figure 6 shown in Figure 6 or 7, the middle part of the bottom piece 22 is in a convex state, and a certain space is left inside for the above three to slide.

[0051] Of course, in order to ensure that the bottom piece 22 can be connected to the fabric, a sewing edge 28 can be provided around the bottom piece 22. The specific setting method of the sewing edge 28 will not be elaborated here. For details, please refer to the prior art.

[0052] In order to further improve the engagement locking and sliding effect between the fixed shaft 25 and the hexagonal groove slide rail 23, the hexagonal groove slide rail 23 and the fixed shaft 25 can be chamfered to ensure the stability of their sliding and clamping.

[0053] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0054] Specific examples are used in this article to elaborate on the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of this application, several improvements and modifications can be made to this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A slide rail four-piece buckle, which comprises a female buckle and a male buckle that engages with the female buckle, characterized in that, The male buckle includes: A base member, fixed to the fabric and arranged in a strip shape. A hexagonal groove slide rail is arranged on the strip-shaped base member and distributed along its length direction. The hexagonal groove slide rail includes a plurality of identical regular hexagonal grooves, and the plurality of regular hexagonal grooves are connected in series; A button bead assembly, slidably arranged on the hexagonal groove slide rail. It includes a button bead that engages with the female buckle. A fixed shaft is arranged at the end of the button bead facing away from the female buckle. An upper limit piece is arranged between the fixed shaft and the button bead. A sliding shaft is arranged at the end of the fixed shaft facing away from the button bead. A lower limit piece is arranged at the end of the sliding shaft facing away from the fixed shaft. And the upper limit piece and the lower limit piece are respectively located on both sides of the hexagonal groove slide rail; Wherein, both the fixed shaft and the sliding shaft penetrate through the hexagonal groove slide rail, and the fixed shaft and the sliding shaft can slide axially along the axial directions of the fixed shaft and the sliding shaft, so that the button bead assembly is slidably arranged on the hexagonal groove slide rail along the axial directions of the fixed shaft and the sliding shaft. When the fixed shaft slides to the same plane as the hexagonal groove slide rail, the fixed shaft is clamped with any one of the regular hexagonal grooves; when the sliding shaft slides to the same plane as the hexagonal groove slide rail, the button bead assembly can slide along the length direction of the hexagonal groove slide rail.

2. The slide rail four-piece buckle according to claim 1, characterized in that, The fixed shaft is a hexagonal prism fixed shaft, and the orthographic projection of the hexagonal prism fixed shaft in any direction of the regular hexagonal groove is included in the regular hexagonal groove, so that the hexagonal prism fixed shaft slides axially and disengages from or extends into the regular hexagonal groove.

3. The slide rail four-piece buckle according to claim 2, wherein, The width value of the smallest part of the hexagonal prism fixed shaft is greater than the side length of the regular hexagonal groove, so that the hexagonal prism fixed shaft is clamped in the regular hexagonal groove.

4. The slide rail four-piece buckle according to claim 3, characterized in that, The sliding shaft is a frustum sliding shaft, and the diameter of the smallest part of the frustum sliding shaft is less than the side length of the regular hexagonal groove, so that the sliding shaft slides along the length direction of the hexagonal groove slide rail.

5. The sliding rail four-piece buckle according to claim 4, characterized in that, The orthographic projections of the upper limit piece and the lower limit piece in the direction of the regular hexagonal groove cover the regular hexagonal groove, and are used to limit the fixed shaft or the sliding shaft in the hexagonal groove slide rail.

6. The sliding rail four-piece buckle according to any one of claims 1-5, characterized in that, The female buckle includes: A buckle body, with a central hole for engaging with the button bead arranged at the center; A buckle surface, located on the end face of the buckle body facing away from the button bead, includes a straight flute extending into and clamped with the central hole and a frustum connected to the straight flute and abutting against the end face of the buckle body. The frustum and the buckle body are jointly used to clamp the fabric.

7. The sliding rail four-piece buckle according to claim 6, wherein, The end face of the frustum facing away from the buckle body is provided with anti-slip stripes.

8. The sliding rail four-piece buckle according to claim 6, wherein, The base member is made of TPU soft plastic material, and a table surface arched towards the female buckle is arranged at the hexagonal groove slide rail, which is used to provide space for the fixed shaft, the sliding shaft and the lower limit piece.

9. The slide rail four-piece buckle according to claim 8, characterized in that, Sewing edges for sewing with the fabric are arranged around the base member.

10. The slide rail four-piece buckle according to claim 6, wherein, The inner walls of the hexagonal groove slide rail are all processed with chamfers.

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