Corner buckle

Abstract

The utility model discloses a corner buckle and relates to the technical field of buckles. The corner buckle comprises a base, the base is provided with a bottom face and a side face, the side face is provided with a first edge and a second edge which are opposite, the first edge is connected with the bottom face, at least part of the second edge and the bottom face are arranged in a spaced mode, the side face protrudes towards the side away from the bottom face, and an included angle is formed between the side face and the bottom face. The included angle between the side surface and the bottom surface is gradually increased, so that the surface type of the side surface and the bending part of the flat optical cable have better adaptation degree, and the corner buckle is arranged between the bending part of the flat optical cable and the fixing structure, so that the connection stability of the flat optical cable and the fixing structure can be improved.

Description

Technical Field

[0001] The present application relates to the field of buckle technology, and in particular to a corner buckle. Background Art

[0002] An adhesive backing is provided on one surface of the flat optical cable. When fixing the flat optical cable, the surface of the flat optical cable provided with the adhesive backing is fitted with the fixed structure, so that the positioning and deployment of the flat optical cable can be quickly achieved. However, when the flat optical cable is bent and extended on a fixed plane, due to the characteristics of the shape of the flat optical cable, the portion of the flat optical cable at the bend is prone to warping up and cannot be fitted and bonded to the fixed plane, resulting in poor fixing stability of the bent portion of the flat optical cable. The adhesive backing at the bend cannot fit with the fixed plane, so that the adhesive backing at the bend is exposed to the air, which is easy to absorb impurities and further reduce the connection stability of the flat optical cable at the bend. At the same time, the flat optical cable is lifted up at the bend, making the bent portion more likely to interfere with other structures than other portions, and is easily damaged by impact, thereby affecting the fixing stability and service life of the entire flat optical cable. Utility Model Content

[0003] The present application provides a corner clip, the base of which has a bottom surface and a side surface, and the angle between the side surface and the bottom surface is gradually increased from the two ends of the side surface toward the middle, so that the surface shape of the side surface is similar to the shape of the bent portion of the flat optical cable, thereby ensuring the connection stability of the flat optical cable and the corner clip, and the corner clip is arranged between the bent portion of the flat optical cable and the fixed plane, so that the bent portion of the flat optical cable is indirectly connected to the fixed structure through the corner clip, which can improve the fixing stability and structural strength of the flat optical cable at the bent portion.

[0004] The present application provides a corner buckle, including a base, the base having a bottom surface and a side surface, the side surface having a first edge and a second edge opposite to each other, the first edge being connected to the bottom surface, at least a portion of the second edge being spaced apart from the bottom surface, the side surface protruding toward a side away from the bottom surface, the side surface and the bottom surface having an angle, and the angle between the side surface and the bottom surface gradually increases in the direction from both ends of the second edge to the center area.

[0005] The corner buckle provided in the present application includes a base, which has a bottom surface and a side surface, the bottom surface is used to connect and fix with the fixed structure, and the side surface is used to connect with the curved part of the flat optical cable, so that the curved part of the flat optical cable and the fixed structure can be indirectly connected through the corner buckle, and the curved part of the flat optical cable can be connected and fixed with the fixed structure, and the curved part of the flat optical cable is avoided from being exposed to the air after being lifted up, which is beneficial to improving the stability of the connection between the curved part of the flat optical cable and the fixed structure; at the same time, the corner buckle is arranged between the curved part of the flat optical cable and the fixed structure, which can increase the structural strength of the curved part of the flat optical cable, and is also beneficial to improving the impact resistance of the curved part of the flat optical cable.

[0006] The side surface has a first edge and a second edge relative to each other, the first edge is connected to the bottom surface, at least part of the second edge is spaced from the bottom surface, so that the second edge of the side surface is tilted compared to the bottom surface, the side surface is tilted compared to the bottom surface, the side surface and the bottom surface have an angle, and the angle between the side surface and the bottom surface gradually increases in the direction from both ends of the second edge to the central area, and from the changing trend of the degree of inclination of the side surface compared to the bottom surface, the surface shape of the side surface is similar to the shape of the curved part of the flat optical cable, which is conducive to the curved part of the flat optical cable and the side surface of the base to fit well. At the same time, the side surface protrudes toward the side away from the bottom surface, avoiding the formation of a gap between the side surface and the curved part of the flat optical cable, further allowing the curved part of the flat optical cable and the side surface of the base to fit well, which is conducive to increasing the connection area between the flat optical cable and the side surface, and then improving the stability of the connection between the curved part of the flat optical cable and the base, that is, improving the stability of the connection between the curved part of the flat optical cable and the fixed structure.

[0007] In a possible implementation, the bottom surface is a plane, and in the direction from the two ends of the second edge to the center area, the distance between the second edge and the bottom surface in the first direction gradually increases, and the first direction is perpendicular to the bottom surface. By making the bottom surface a plane, and in the direction from the two ends of the second edge to the center area, the distance between the second edge and the bottom surface in the first direction gradually increases, it is helpful to ensure that in the direction from the two ends of the second edge to the center area, the angle between the side surface and the bottom surface gradually increases, and the arrangement of the bottom surface and the side surface is simplified, thereby simplifying the production of the corner buckle and improving the production yield of the corner buckle.

[0008] In a possible implementation manner, the two ends of the second edge are connected to the bottom surface. By connecting the two ends of the second edge to the bottom surface, the drop between the two ends of the second edge and the fixed structure of the side surface of the base is small, which is conducive to a smooth transition between the flat optical cable and the fixed structure and the base, and avoids too large a drop between the two ends of the second edge and the fixed structure of the base, resulting in the connection between the first section and the second section, and the connection between the second section and the third section being exposed to the air.

[0009] In a possible implementation, the side surface is in an arc shape, the first edge constitutes a curved outer edge of the side surface, and the second edge constitutes a curved inner edge of the side surface. By making the side surface in an arc shape, the first edge constitutes a curved outer edge of the arc-shaped side surface, and the second edge constitutes a curved inner edge of the arc-shaped side surface, so that the side surface forms an arc-shaped curved surface convex toward the side away from the bottom surface, and further makes the surface shape of the side surface similar to the shape of the curved portion of the flat optical cable, which is conducive to increasing the connection area between the flat optical cable and the side surface, and further improving the stability of the connection between the curved portion of the flat optical cable and the base.

[0010] In a possible implementation, the angle between the side surface and the bottom surface is the largest at the center of the curve of the second edge. By making the angle between the side surface and the bottom surface the largest at the center of the curve of the second edge, the surface shape of the side surface is further made similar to the shape of the curved portion of the flat optical cable, which is conducive to increasing the connection area between the flat optical cable and the side surface, and further improving the stability of the connection between the curved portion of the flat optical cable and the base.

[0011] In a possible implementation, the arc radius of the second edge is less than or equal to the arc radius of the first edge. By making the arc radius of the second edge less than or equal to the arc radius of the first edge, it is helpful to simplify the production of the base and ensure that the second edge can be tilted compared to the first edge, thereby ensuring that the side surface shape and the shape of the curved portion of the flat optical cable are closer, so that the base and the curved portion of the flat optical cable have sufficient connection area. At the same time, the first edge has a sufficient length so that the bottom surface has a sufficient size, which is helpful to ensure the connection area between the base and the fixed structure, thereby ensuring the stability of the connection between the corner buckle and the fixed structure.

[0012] In a possible implementation, the bottom surface is in an arc shape, the base further comprises an inner side surface, the inner side surface is connected to the bottom surface, and the inner side surface is close to the curved inner edge of the bottom surface, the side surface is connected to the bottom surface, and the side surface is close to the curved outer edge of the bottom surface, and the corner buckle further comprises a reinforcing portion, the reinforcing portion is connected to the inner side surface. By making the bottom surface in an arc shape and providing the reinforcing portion on the inner side surface connected to the curved inner edge of the bottom surface, it is helpful to reduce the area of the bottom surface, realize the miniaturization of the corner buckle, provide more space for the arrangement of the flat optical cable on the fixed structure, and at the same time ensure the structural strength of the corner buckle, thereby ensuring the stability of the base supporting and connecting the curved part of the flat optical cable.

[0013] In a possible implementation, the reinforcing part is parallel to the bottom surface. By making the reinforcing part parallel to the bottom surface, the pressure exerted by the flat optical cable on the base is more evenly distributed by the reinforcing part, further ensuring the structural strength of the corner buckle; at the same time, it is also beneficial to simplify the setting of the reinforcing part, thereby simplifying the production and manufacturing of the corner buckle and improving the manufacturing yield of the corner buckle.

[0014] In a possible implementation, the inner side surface is perpendicular to the bottom surface. By making the inner side surface perpendicular to the bottom surface, it is beneficial to simplify the structural settings of the base and the reinforcing part, thereby simplifying the production of the corner buckle.

[0015] In a possible implementation, the base includes a first part and a second part that are rotatably connected. The bottom surface includes a first bottom surface located on the first part and a second bottom surface located on the second part. The side surface includes a first side surface located on the first part and a second side surface located on the second part. By making the base include a first part and a second part that are rotatably connected, when the first part and the second part rotate relative to each other, the relative positional relationship between the first bottom surface and the second bottom surface can change, enabling the base to adjust the shape of the bottom surface according to actual needs to improve the applicability of the bottom surface of the base; similarly, the angle between the first side surface and the second side surface can change, causing the surface shape of the side surface to change, and the base can adjust the surface shape of the side surface according to actual needs to be applicable to flat optical cables of different forms.

[0016] In a possible implementation, the bottom surface is a plane, and the rotation axes of the first part and the second part are perpendicular to the bottom surface. By making the rotation axes of the first part and the second part perpendicular to the bottom surface, it is beneficial to simplify the process of rotational adjustment of the first part and the second part and avoid affecting the connection between the corner buckle and the fixing structure during the relative rotation process of the first part and the second part.

[0017] In a possible implementation, the corner buckle further includes a limiting part. The limiting part is connected to the base, and at least part of the limiting part is located on the side away from the bottom surface of the side surface and protrudes from the side surface. By making the corner buckle further include a limiting part, the limiting part is connected to the base, and at least part of the limiting part is located on the side away from the bottom surface of the side surface and protrudes from the side surface, enabling the limiting part to limit the flat optical cable on the side surface of the base, which is beneficial to improving the stability of the connection between the flat optical cable and the corner buckle.

[0018] In a possible implementation manner, the bottom surface is a plane. Taking the direction perpendicular to the bottom surface as the first direction, a part of the limiting portion is arranged at an interval from the side surface, and the projection of the part of the limiting portion in the first direction is located on the side surface. By arranging a part of the limiting portion at an interval from the side surface and making the projection of this part of the limiting portion in the first direction be located on the side surface, it is beneficial to realize the limitation of the flat optical cable in the first direction by the limiting portion, avoid the bending part of the flat optical cable connected to the side surface of the base from warping up, and is beneficial to improving the connection stability between the flat optical cable and the corner buckle.

[0019] In a possible implementation manner, the limiting portion includes a connected support section and an extension section. The support section is connected to the first edge, the extension section is arranged at an interval from the side surface, and the projections of the support section and the extension section in the first direction are both located on the side surface. By making the limiting portion include a connected support section and an extension section, the support section is connected to the first edge, the extension section is located on the side away from the side surface of the support section, the extension section is arranged at an interval from the side surface, and the projections of the support section and the extension section in the first direction are both located on the side surface, so that the extension section, the support section and the base jointly enclose a semi-closed channel and realize the limitation of the flat optical cable, and the connection stability between the flat optical cable and the corner buckle is improved.

[0020] In a possible implementation manner, the corner buckle further includes an expansion portion. The expansion portion is connected to the first edge, the expansion portion is located on the side of the first edge away from the second edge, and the limiting portion is connected to the expansion portion. By making the corner buckle include an expansion portion, the expansion portion is connected to the first edge, and the limiting portion is connected to the expansion portion, it is avoided that the setting of the limiting portion occupies the space on the side surface, which is beneficial to ensuring that the side surface of the base and the flat optical cable have sufficient connection area and connection stability.

[0021] In a possible implementation manner, the number of the limiting portions is at least two, and at least two of the limiting portions are arranged at an interval. By making the number of the limiting portions be at least two and at least two of the limiting portions be arranged at an interval, the distribution of the limiting portions is more uniform compared with the flat optical cable, which is beneficial to improving the limiting effect of the limiting portions.

[0022] In a possible implementation, the corner buckle further includes a fixing portion, the fixing portion is connected to the base, the fixing portion is located on at least one side of the base in the extending direction of the first edge, the fixing portion has a through groove, and the opening of the through groove corresponds to the region between the first edge and the second edge. By making the corner buckle include a fixing portion, the fixing portion is connected to the base, and the fixing portion is located on at least one side of the base in the extending direction of the first edge, so that the fixing portion makes full use of the space on both sides of the base in the extending direction of the first edge. The fixing portion has a through groove, so that the through groove can be used to accommodate the flat optical cable, and the inner wall of the through groove realizes the limit of the flat optical cable, avoiding the flat optical cable from tilting compared with the fixing structure, which is beneficial to further improving the connection stability between the flat optical cable and the fixing structure.

[0023] In a possible implementation, the bottom surface is a plane, the extending direction of the through groove is parallel to the bottom surface, the notch and the bottom wall of the through groove are oppositely arranged in the direction perpendicular to the bottom surface, the notch of the through groove is communicated with the opening of the through groove, and the notch of the through groove is located on the side of the bottom wall of the through groove close to the bottom surface. By making the notch and the bottom wall of the through groove oppositely arranged in the first direction, and the notch of the through groove is located on the side of the bottom wall of the through groove close to the bottom surface, when the corner buckle is arranged on the fixing structure, the fixing portion covers the flat optical cable, which is beneficial to avoiding the flat optical cable from tilting; at the same time, the notch of the through groove is communicated with the opening of the through groove, so that the through groove is a semi-open structure, which is beneficial to simplifying the setting process of the fixing portion relative to the flat optical cable.

[0024] In a possible implementation, the number of the fixing portions is two, and the two fixing portions are respectively located on both sides of the base in the extending direction of the first edge. By making the number of the fixing portions be two, and the two fixing portions are respectively located on both sides of the base in the extending direction of the first edge, the first fixing portion and the second fixing portion are evenly distributed in the extending direction of the flat optical cable, ensuring the connection stability between the flat optical cable and the fixing structure in the extending direction of the flat optical cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of the corner buckle provided by the embodiment of the present application;

[0026] Figure 2 is Figure 1 a schematic structural diagram of the corner buckle provided by the shown embodiment arranged between the flat optical cable and the fixing structure;

[0027] Figure 3 is Figure 2 a top view of the corner buckle, the flat optical cable and the fixing structure provided by the shown embodiment;

[0028] Figure 4 isFigure 1 The front view of the corner buckle provided by the illustrated embodiment;

[0029] Figure 5 is Figure 1 The left view of the corner buckle provided by the illustrated embodiment;

[0030] Figure 6 is Figure 1 The top view of the corner buckle provided by the illustrated embodiment;

[0031] Figure 7 The structural schematic diagram of the corner buckle with a limiting part and a strengthening part provided by the embodiment of the present application;

[0032] Figure 8 is Figure 7 The structural schematic diagram of the corner buckle provided by the illustrated embodiment disposed between a flat optical cable and a fixing structure;

[0033] Figure 9 is Figure 7 The front view of the corner buckle provided by the illustrated embodiment;

[0034] Figure 10 is Figure 7 The left view of the corner buckle provided by the illustrated embodiment;

[0035] Figure 11 is Figure 7 The top view of the corner buckle provided by the illustrated embodiment;

[0036] Figure 12 is Figure 7 The top view of two side-by-side arranged corner buckles provided by the illustrated embodiment;

[0037] Figure 13 The left view of the corner buckle with a connecting part provided by the embodiment of the present application;

[0038] Figure 14 is Figure 13 The bottom view of the corner buckle provided by the illustrated embodiment;

[0039] Figure 15 The structural schematic diagram of the corner buckle including a first part and a second part provided by the embodiment of the present application;

[0040] Figure 16 is Figure 15 The structural schematic diagram of the corner buckle after the relative rotation of the first part and the second part in the corner buckle provided by the illustrated embodiment;

[0041] Figure 17 The structural schematic diagram of the corner buckle with an expansion part and a fixing part provided by the embodiment of the present application;

[0042] Figure 18 is Figure 17 The top view of the corner buckle provided by the illustrated embodiment;

[0043] Figure 19 is Figure 17 The front view of the corner buckle provided by the illustrated embodiment;

[0044] Figure 20 is Figure 17 The schematic structural view of the corner buckle provided by the illustrated embodiment disposed between the flat optical cable and the fixed structure. Detailed implementation manners

[0045] The embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

[0046] For ease of understanding, the English abbreviations and related technical terms involved in the embodiments of the present application will be explained and described below.

[0047] It should be clear that the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0048] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms of "a", "the" and "said" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0049] It should be understood that the term " / and / " used herein is only a same field for describing associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0050] Depending on the context, the word "if" used herein may be interpreted as "when" or "while" or "in response to determining" or "in response to detecting". Similarly, depending on the context, the phrase "if determined" or "if detecting (stated condition or event)" may be interpreted as "when determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)".

[0051] It should be understood that the "first", "second", etc. used in this application are only for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying an order.

[0052] In the description of this application, the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation to this application.

[0053] In the description of this application, it should be noted that due to manufacturing errors or assembly errors, there are some angular deviations in the design that should be perpendicular or parallel. For example, the deviation is within 15 degrees, which also belongs to the perpendicular or parallel described in this embodiment.

[0054] The "within... range" used in this application, unless it is separately pointed out that the end values are not included, by default includes the two end values of this range. For example, within the range of 1 to 5, it includes the two values of 1 and 5.

[0055] In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or a contact connection or an integral connection; for those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0056] It should be understood that in this application, "connection" and "coupling" can both refer to a mechanical connection relationship or a physical connection relationship. For example, A is connected to B or A is coupled to B can mean that there are fastening members (such as screws, bolts, rivets, etc.) between A and B, or A and B are in contact with each other and it is difficult to separate A and B.

[0057] A flat optical cable generally has two opposite planes and two opposite sides. The two planes and the two sides are all parallel to the extending direction of the flat optical cable, and the area of the plane is larger than the area of the side. By providing an adhesive on one of the planes of the flat optical cable, rapid connection and fixation of the flat optical cable to a fixed structure can be achieved. Specifically, when fixing the flat optical cable, the surface of the flat optical cable provided with the adhesive is attached to the fixed structure, and the connection and fixation of the flat optical cable and the fixed structure can be realized, which simplifies the fixing process of the flat optical cable. The positioning of the flat optical cable relative to the fixed structure and the connection of the flat optical cable to the fixed structure are carried out simultaneously, and the positioning and deployment efficiency of the flat optical cable on the fixed structure are also improved.

[0058] However, when the flat optical cable is connected to a fixed plane and bends and extends on the fixed plane, due to the characteristics of the shape of the flat optical cable, the inner side of the bend of the flat optical cable is squeezed, making it easy for the inner side of the bend of the flat optical cable to warp compared to the outer side of the bend. As a result, the surface of the flat optical cable with the adhesive backing cannot be bonded to the fixed plane at the bend, and the fixing stability of the flat optical cable at the bend is poor, further affecting the fixing stability of the entire flat optical cable. At the same time, the flat optical cable warps at the bend, causing the adhesive backing at the bend to be unable to fit the fixed plane, and the adhesive backing at the bend is exposed to the air, making it easy to adsorb impurities in the air, resulting in the loss of adhesiveness of the adhesive backing at this place, and expanding the area where the adhesive backing adsorbs impurities, further reducing the connection stability between the flat optical cable and the fixed structure.

[0059] Cutting the bent part of the flat optical cable to avoid squeezing the inner side of the bend of the flat optical cable can reduce the warping height of the flat optical cable at the bend to a certain extent. However, the cutting process is relatively complex, and it is easy to cut off the flat optical cable by operating mistakes. The thickness of the flat optical cable at the bend is reduced after cutting, reducing the structural strength of the flat optical cable at the bend, and further reducing the impact resistance and service life of the flat optical cable at the bend. At the same time, the bent part of the flat optical cable is more likely to warp than other parts, making the bent part more likely to interfere with other structures than other parts, and the bent part is more likely to be damaged by impact.

[0060] The present application provides a corner buckle 100. Please refer to Figure 1 and Figure 2 , Figure 1 which shows a schematic structural diagram of the corner buckle 100 provided by the embodiment of the present application. Figure 2 shows Figure 1 a schematic structural diagram of the corner buckle 100 provided by the shown embodiment disposed between the flat optical cable 200 and the fixed structure 300. The corner buckle 100 includes a base 10. The base 10 has a bottom surface 11 and a side surface 12. The bottom surface 11 of the base 10 is used to connect to the fixed structure 300, and the side surface 12 of the base 10 is used to connect to the bent part of the flat optical cable 200, so that the corner buckle 100 is disposed between the flat optical cable 200 and the fixed structure 300. The bent part of the flat optical cable 200 and the fixed structure 300 are indirectly connected through the corner buckle 100, enabling the bent part of the flat optical cable 200 to be fixedly connected to the fixed structure 300, and preventing the bent part of the flat optical cable 200 from being exposed to the air after warping, which is beneficial to improving the connection stability between the bent part of the flat optical cable 200 and the fixed structure 300.

[0061] Since the bent portion of the flat optical cable 200 and the fixing structure 300 are indirectly connected through the corner buckle 100, the stability of the connection between the corner buckle 100 and the fixing structure 300 and the stability of the connection between the corner buckle 100 and the bent portion of the flat optical cable 200 will affect the stability of the connection between the bent portion of the flat optical cable 200 and the fixing structure 300. That is, it is necessary to ensure that the bottom surface 11 of the base 10 and the fixing structure 300 can be firmly connected, and the side surface 12 of the base 10 and the bent portion of the flat optical cable 200 can be firmly connected.

[0062] To ensure the stability of the connection between the bottom surface 11 of the base 10 and the fixing structure 300, the bottom surface 11 and the fixing structure 300 need to have a good degree of fit. The surface shape of the bottom surface 11 should be set according to the shape of the fixing structure 300 to increase the connection area between the bottom surface 11 and the fixing structure 300. The surface shape of the bottom surface 11 includes but is not limited to a flat surface, a curved surface, and a folded surface. In one embodiment, please refer to Figure 2 , the fixing structure 300 is used to set the surface of the flat optical cable 200 to be a flat surface. Correspondingly, the bottom surface 11 is a flat surface, so that the bottom surface 11 and the surface of the fixing structure 300 for setting the flat optical cable 200 can be completely fitted, and the connection area between the bottom surface 11 and the fixing structure 300 is large, which is beneficial to ensuring the stability of the connection between the base 10 and the fixing structure 300, and further ensuring the stability of the connection between the corner buckle 100 and the fixing structure 300.

[0063] To ensure the stability of the connection between the side surface 12 of the base 10 and the bent portion of the flat optical cable 200, the side surface 12 and the bent portion of the flat optical cable 200 need to have a good degree of fit. The surface shape of the side surface 12 should be set according to the shape of the bent portion of the flat optical cable 200 to increase the connection area between the side surface 12 and the bent portion of the flat optical cable 200. Please refer to Figure 2 , at the bent portion of the flat optical cable 200, the inner side of the bend of the flat optical cable 200 warps upward compared to the outer side of the bend. Correspondingly, please refer to Figure 1 and Figure 2 , the side surface 12 has opposite first edge 121 and second edge 122. The first edge 121 is connected to the bottom surface 11, and at least part of the second edge 122 is spaced from the bottom surface 11, so that the second edge 122 of the side surface 12 warps upward compared to the first edge 121. The surface shape of the side surface 12 is similar to the shape of the bent portion of the flat optical cable 200, which is beneficial to ensuring that the side surface 12 and the bent portion of the flat optical cable 200 have a good degree of fit, and the connection area between the flat optical cable 200 and the side surface 12 is large, which is beneficial to ensuring the stability of the connection between the base 10 and the bent portion of the flat optical cable 200, and further ensuring the stability of the connection between the corner buckle 100 and the flat optical cable 200.

[0064] Please refer to Figure 2 and Figure 3 ,Figure 3 Shows Figure 2 The illustrated embodiment provides a top view of a corner buckle 100, a flat optical cable 200, and a fixing structure 300. When the flat optical cable 200 and the fixing structure 300 are connected and fixed, the flat optical cable 200 includes a first section 201, a second section 202, and a third section 203 that are sequentially connected, the first section 201 and the third section 203 are directly connected to the fixing structure 300, the first section 201 and the third section 203 are both fitted to the fixing structure 300, and the extension direction of the first section 201 and the extension direction of the third section 203 have an angle, so that the flat optical cable 200 is bent at the second section 202, that is, the second section 202 constitutes the bent portion of the flat optical cable 200, and the second section 202 is used to connect to the corner buckle 100. In one embodiment, please refer to Figure 3 The extension directions of the first section 201 and the third section 203 are perpendicular, so that the second section 202 is bent. Specifically, the length of the first section 201 in its extension direction is L1, the length of the third section 203 in its extension direction is L3, the second section 202 is bent and extended, and the straight-line distance between the two ends of the second section 202 in its bent extension direction is L2. The first section 201 and the third section 203 are directly connected to the fixed structure 300, and the second section 202 is directly connected to the corner buckle 100, so that the second section 202 is connected to the fixed structure 300 at an interval.

[0065] See also Figure 2 The second section 202 is bent and extended, and the inner side of the bend of the second section 202 is tilted compared to the outer side of the bend, so that the inner side of the bend of the second section 202 is tilted compared to the fixed structure 300. Since the two ends of the second section 202 in its extension direction are respectively connected to the first section 201 and the third section 203, the tilting degree of the second section 202 at the two ends in its extension direction compared to the fixed structure 300 is smaller, and the tilting degree of the second section 202 in the central area in its extension direction compared to the fixed structure 300 is larger, that is, in the direction from the two ends of the second section 202 to the central area, the tilting degree of the second section 202 compared to the fixed structure 300 gradually increases.

[0066] For the corresponding Figure 4 and Figure 5 , Figure 4 Shows Figure 1 The front view of the corner buckle 100 provided in the illustrated embodiment, Figure 5 Shows Figure 1The left side view of the corner buckle 100 provided in the illustrated embodiment. The first edge 121 of the side surface 12 of the base 10 is connected to the bottom surface 11, and the second edge 122 of the side surface 12 of the base 10 is tilted compared to the first edge 121, so that the side surface 12 is tilted compared to the bottom surface 11, and there is an angle between the side surface 12 and the bottom surface 11. In the direction from both ends of the second edge 122 to the central area, the angle between the side surface 12 and the bottom surface 11 gradually increases, so that the surface shape of the side surface 12 is similar to the shape of the second section 202, that is, the surface shape of the side surface 12 is further similar to the shape of the curved portion of the flat optical cable 200, which is conducive to ensuring that the side surface 12 and the curved portion of the flat optical cable 200 have a good fit, thereby ensuring the stability of the connection between the corner buckle 100 and the flat optical cable 200.

[0067] For further information, see Figure 2 At the curved portion of the flat optical cable 200, the flat optical cable 200 protrudes from the inner side of the curve toward the outer side of the curve, corresponding to which, see Figure 4 and Figure 5 The side surface 12 protrudes toward the side away from the bottom surface 11, so that the surface shape of the side surface 12 is similar to the shape of the curved portion of the flat optical cable 200, which is conducive to ensuring that the side surface 12 and the curved portion of the flat optical cable 200 have a good fit, thereby ensuring the stability of the connection between the corner buckle 100 and the flat optical cable 200, and avoiding the problem that when the side surface 12 of the base 10 is recessed toward the bottom surface 11, there is a gap between the curved portion of the flat optical cable 200 and the side surface 12 of the base 10, resulting in a reduction in the fitting area between the curved portion of the flat optical cable 200 and the side surface 12 of the base 10.

[0068] It can be seen from the shape settings of the bottom surface 11 and the side surface 12 of the above-mentioned base 10 that the corner buckle 100 is set between the fixed structure 300 and the curved part of the flat optical cable 200, and the connection area between the base 10 of the corner buckle 100 and the fixed structure 300 and the curved part of the flat optical cable 200 is increased, which can increase the connection stability between the flat optical cable 200 and the fixed structure 300. In addition, when the corner buckle 100 is set between the fixed structure 300 and the curved part of the flat optical cable 200, the corner buckle 100 can also support the curved part of the flat optical cable 200, so that the curved part of the flat optical cable 200 has better structural strength, and it is also beneficial to improve the impact resistance of the curved part of the flat optical cable 200.

[0069] The present application provides a corner buckle 100, which includes a base 10. The base 10 has a bottom surface 11 and a side surface 12. The bottom surface 11 is used for connecting and fixing with a fixing structure 300, and the side surface 12 is used for connecting with the bent portion of the flat optical cable 200, so that the bent portion of the flat optical cable 200 and the fixing structure 300 can be indirectly connected through the corner buckle 100. The bent portion of the flat optical cable 200 can be connected and fixed with the fixing structure 300, and the situation that the bent portion of the flat optical cable 200 is warped and exposed to the air is avoided, which is beneficial to improving the connection stability between the bent portion of the flat optical cable 200 and the fixing structure 300. At the same time, the corner buckle 100 is arranged between the bent portion of the flat optical cable 200 and the fixing structure 300, which can increase the structural strength of the bent portion of the flat optical cable 200 and is also beneficial to improving the impact resistance of the bent portion of the flat optical cable 200.

[0070] The side surface 12 of the base 10 has opposite first edge 121 and second edge 122. The first edge 121 is connected to the bottom surface 11, and at least part of the second edge 122 is spaced from the bottom surface 11, so that the second edge 122 of the side surface 12 is warped relative to the bottom surface 11, and the side surface 12 is inclined relative to the bottom surface 11. When the corner buckle 100 and the flat optical cable 200 are both arranged on the fixing structure 300, both the side surface 12 and the bent portion of the flat optical cable 200 are warped relative to the fixing structure 300. From the inclined shape, the surface shape of the side surface 12 is similar to the shape of the bent portion of the flat optical cable 200, so that the bent portion of the flat optical cable 200 and the side surface 12 of the base 10 can be better fitted. There is an included angle between the side surface 12 and the bottom surface 11. In the direction from both ends to the central region of the second edge 122, the included angle between the side surface 12 and the bottom surface 11 gradually increases. In the direction from both ends to the central region of the bent portion of the flat optical cable 200, the warping degree of the bent portion of the flat optical cable 200 relative to the fixing structure 300 gradually increases. From the changing trend of the inclined degree, the surface shape of the side surface 12 is similar to the shape of the bent portion of the flat optical cable 200, so that the bent portion of the flat optical cable 200 and the side surface 12 of the base 10 can be better fitted. At the same time, the side surface 12 protrudes toward the side away from the bottom surface 11, avoiding the generation of a gap between the side surface 12 and the bent portion of the flat optical cable 200, so that the bent portion of the flat optical cable 200 and the side surface 12 of the base 10 can be better fitted, which is beneficial to increasing the connection area between the flat optical cable 200 and the side surface 12, and further improving the connection stability between the bent portion of the flat optical cable 200 and the base 10, that is, improving the connection stability between the bent portion of the flat optical cable 200 and the fixing structure 300.

[0071] In a possible implementation manner, please refer to Figure 2 and Figure 3, the fixing structure 300 has a plane for arranging the flat optical cable 200, and the flat optical cable 200 bends and extends on this plane. Correspondingly, the bottom surface 11 of the base 10 is a plane, so that the base 10 and the plane of the fixing structure 300 for arranging the flat optical cable 200 can be completely attached. The connection area between the bottom surface 11 and the fixing structure 300 is large, which is beneficial to ensuring the stability of the connection between the base 10 and the fixing structure 300, and further ensuring the stability of the connection between the corner buckle 100 and the fixing structure 300.

[0072] When the bottom surface 11 of the base 10 is a plane, please refer to Figure 4 and Figure 5 , the side surface 12 of the base 10 is inclined with respect to the plane where the bottom surface 11 is located. Taking the direction perpendicular to the bottom surface 11 as the first direction (such as Figure 4 and Figure 5 the Z direction in), the first edge 121 of the side surface 12 is located on the plane where the bottom surface 11 is located, and at least part of the second edge 122 of the side surface 12 and the bottom surface 11 are spaced apart in the first direction. In the direction from both ends of the second edge 122 to the central region, the distance between the second edge 122 and the bottom surface 11 in the first direction gradually increases, ensuring that in the direction from both ends of the second edge 122 to the central region, the included angle between the side surface 12 and the bottom surface 11 gradually increases, which is beneficial to simplifying the setting of the bottom surface 11 and the side surface 12, and further simplifying the manufacture of the corner buckle 100 and improving the manufacturing yield of the corner buckle 100.

[0073] In one embodiment, please refer to Figure 4 and Figure 5 , at both ends of the second edge 122, the distance between the second edge 122 and the bottom surface 11 in the first direction is H1, and at the center point in the extending direction of the second edge 122, the distance between the second edge 122 and the bottom surface 11 in the first direction is H2. The second edge 122 and the bottom surface 11 satisfy the relationship: H2 > H1, so that in the direction from both ends of the second edge 122 to the central region, the distance between the second edge 122 and the bottom surface 11 in the first direction gradually increases, which is beneficial to ensuring that in the direction from both ends of the second edge 122 to the central region, the included angle between the side surface 12 and the bottom surface 11 gradually increases.

[0074] The flat optical cable 200 includes a first section 201, a second section 202, and a third section 203 that are connected in sequence. Both the first section 201 and the third section 203 are attached to the fixing structure 300, and the second section 202 is connected to the side surface 12 of the base 10. In one embodiment, at both ends of the second edge 122, the distance between the second edge 122 and the bottom surface 11 in the first direction is 0, that is, both ends of the second edge 122 are connected to the bottom surface 11, so that the drop between the side surface 12 of the base 10 and the fixing structure 300 at both ends of the second edge 122 is small, which is conducive to the smooth transition at the connection of the flat optical cable 200 with the fixing structure 300 and the base 10, and avoids too large a drop between the base 10 and the fixing structure 300 at both ends of the second edge 122, resulting in the exposure of the connection between the first section 201 and the second section 202 and the connection between the second section 202 and the third section 203 to the air, which is conducive to improving the stability of the connection between the bent portion of the flat optical cable 200 and the fixing structure 300.

[0075] In a possible implementation, please refer to Figure 4 , Figure 5 and Figure 6 , Figure 6 which shows Figure 1 a top view of the corner buckle 100 provided by the shown implementation. The shape of the side surface 12 is arc-shaped, and both the first edge 121 and the second edge 122 extend along the arc extension direction of the side surface 12. The first edge 121 constitutes the curved outer edge of the arc-shaped side surface 12, and the second edge 122 constitutes the curved inner edge of the arc-shaped side surface 12. Since the side surface 12 protrudes towards the side away from the bottom surface 11, the side surface 12 constitutes an arc-shaped curved surface protruding towards the side away from the bottom surface 11. The surface shape of the side surface 12 is similar to the shape of the bent portion of the flat optical cable 200, and the bent portion of the flat optical cable 200 can be well attached to the side surface 12 of the base 10, which is conducive to increasing the connection area between the bent portion of the flat optical cable 200 and the side surface 12, and further improving the stability of the connection between the bent portion of the flat optical cable 200 and the base 10, that is, improving the stability of the connection between the bent portion of the flat optical cable 200 and the fixing structure 300. On the contrary, when the shape of the side surface 12 is zigzag, the side surface 12 is a folded surface, and there is easily a gap between the bent portion of the flat optical cable 200 and the side surface 12, resulting in a reduction in the connection area between the bent portion of the flat optical cable 200 and the side surface 12, and the bent portion of the flat optical cable 200 is exposed to the air at the gap, which is not conducive to ensuring the stability of the connection between the bent portion of the flat optical cable 200 and the base 10.

[0076] Both the first edge 121 and the second edge 122 extend along the arc extension direction of the side surface 12, so that both the first edge 121 and the second edge 122 extend along an arc. In the direction from both ends of the second edge 122 to the central region, the included angle between the side surface 12 and the bottom surface 11 gradually increases. In one embodiment, please refer to Figure 1 ,Figure 4 and Figure 5 , at the center of the curve of the second edge 122, the angle between the side surface 12 and the bottom surface 11 is the largest, the first edge 121 constitutes the curved outer edge of the arc-shaped side surface 12, and the second edge 122 constitutes the curved inner edge of the arc-shaped side surface 12, that is, at the arc center point of the second edge 122, the second edge 122 is tilted the most compared to the first edge 121. Figure 2 At the arc center point of the curved portion of the flat optical cable 200, the tilting height of the curved inner edge of the flat optical cable 200 is the largest compared to the curved outer edge, so that when the angle between the side surface 12 and the bottom surface 11 is the largest at the center of the curve of the second edge 122, the surface shape of the side surface 12 is similar to the shape of the curved portion of the flat optical cable 200, which is beneficial to further increase the connection area between the flat optical cable 200 and the side surface 12, thereby improving the stability of the connection between the curved portion of the flat optical cable 200 and the base 10.

[0077] Exemplarily, at the center of the curve of the second edge 122, the angle between the side surface 12 and the bottom surface 11 is the largest, and the angle between the side surface 12 and the bottom surface 11 is 90 degrees, and at the two ends of the second edge 122, the angle between the side surface 12 and the bottom surface 11 is 0, so that the height difference in the first direction from the center point of the curve of the second edge 122 and the two ends of the second edge 122 is equal, so that the height change trend from the center point of the curve of the second edge 122 to the two ends of the second edge 122 is similar, which is conducive to simplifying the production of the base 10 and improving the production yield of the corner buckle 100.

[0078] In one embodiment, see Figure 1 and Figure 6 , the first edge 121 and the second edge 122 both extend along an arc, the first edge 121 constitutes the curved outer edge of the curved side surface 12, the second edge 122 constitutes the curved inner edge of the curved side surface 12, and the arc radius of the second edge 122 is less than or equal to the arc radius of the first edge 121, which is conducive to simplifying the production of the base 10 and ensuring that the second edge 122 can be tilted compared to the first edge 121, thereby ensuring that the surface shape of the side surface 12 is closer to the shape of the curved portion of the flat optical cable 200, so that the base 10 and the curved portion of the flat optical cable 200 have sufficient connection area. At the same time, the first edge 121 has a sufficient length, so that the bottom surface 11 has a sufficient size, which is conducive to ensuring the connection area between the base 10 and the fixed structure 300, thereby ensuring the stability of the connection between the corner buckle 100 and the fixed structure 300.

[0079] For a possible implementation, see Figure 1 and Figure 6, the shape of the bottom surface 11 is arc-shaped, such that the area of the bottom surface 11 is smaller, which is conducive to miniaturizing the base 10 and further miniaturizing the corner buckle 100. At the same time, the bottom surface 11 of the base 10 is used to connect with the fixing structure 300. When the area of the bottom surface 11 is smaller, the occupied area of the base 10 on the surface of the fixing structure 300 for arranging the flat optical cable 200 is smaller, which is conducive to providing more space for arranging the flat optical cable 200 on the fixing structure 300.

[0080] Please refer to Figure 6 , when the shape of the bottom surface 11 is arc-shaped, the bottom surface 11 has opposite curved outer edges and curved inner edges. The first edge 121 of the side surface 12 is close to the curved outer edge of the bottom surface 11, and the second edge 122 of the side surface 12 is close to the curved inner edge of the bottom surface 11, making the structure of the base 10 more reasonable and conducive to simplifying the manufacture of the base 10. The length of the curved outer edge of the bottom surface 11 can be greater than the length of the curved inner edge of the bottom surface 11, such that the first edge 121 of the side surface 12 has sufficient length, which is conducive to ensuring that the side surface 12 has sufficient area. The side surface 12 of the base 10 has sufficient area to support and connect the curved part of the flat optical cable 200, thereby ensuring the stability of the support and connection of the base 10 to the curved part of the flat optical cable 200.

[0081] Please refer to Figure 1 and Figure 4 , the base 10 further has an inner side surface 13. The inner side surface 13 is connected to one side of the bottom surface 11 close to its curved inner edge, and the side surface 12 is connected to one side of the bottom surface 11 close to its curved outer edge. Please refer to Figure 2 , when the flat optical cable 200 is connected to the base 10, the flat optical cable 200 generates a pressure on the base 10 in the direction from the side surface 12 towards the inner side surface 13. In one embodiment, please refer to Figure 7 and Figure 8 , Figure 7 shows a schematic structural diagram of the corner buckle 100 with a limiting portion 40 and a strengthening portion 20 provided by the embodiment of the present application, Figure 8 shows Figure 7 a schematic structural diagram of the corner buckle 100 provided by the shown embodiment arranged between the flat optical cable 200 and the fixing structure 300. The corner buckle 100 further includes a strengthening portion 20. The strengthening portion 20 is connected to the inner side surface 13, such that the strengthening portion 20 is located inside the curvature of the base 10. The pressure generated by the flat optical cable 200 on the base 10 can be dispersed to the strengthening portion 20, which is conducive to improving the structural strength of the corner buckle 100 and further ensuring the support stability of the corner buckle 100 to the flat optical cable 200.

[0082] The reinforcing portion 20 and the base 10 can be an integral structure, or the reinforcing portion 20 and the base 10 can be two separate components connected to each other. The shape of the reinforcing portion 20 can be set according to actual requirements to achieve appropriate expansion of the structure of the base 10, ensure miniaturization of the corner buckle 100, and enhance the structural strength of the corner buckle 100. It should be avoided that the reinforcing portion 20 is too large, resulting in too large an occupied space of the corner buckle 100, thereby affecting the arrangement of the flat optical cable 200 on the fixing structure 300. In one embodiment, please refer to Figure 11 , Figure 11 shows Figure 7 a top view of the corner buckle 100 provided by the shown embodiment. In a plane perpendicular to the first direction (such as the plane where the X direction and the Y direction are located in Figure 11 ), the shape of the orthographic projection of the reinforcing portion 20 is arc-shaped. The curved outer edge of the reinforcing portion 20 is close to the inner side surface 13 of the base 10, and the curved outer edge of the reinforcing portion 20 is far from the inner side surface 13 of the base 10, which is beneficial for the shape of the reinforcing portion 20 to correspond to the shape of the base 10, improving the structural strength of the corner buckle 100, and making the occupied space of the reinforcing portion 20 smaller, ensuring miniaturization of the corner buckle 100. The curved outer edge of the reinforcing portion 20 is completely attached to and connected with the inner side surface 13, making the connection area between the reinforcing portion 20 and the base 10 larger, which is beneficial for further improving the structural strength of the corner buckle 100.

[0083] Exemplarily, please refer to Figure 12 , Figure 12 shows Figure 7 top views of two side-by-side arranged corner buckles 100 provided by the shown embodiment. When the shape of the orthographic projection of the reinforcing portion 20 is arc-shaped, the arc radius of the curved inner edge of the reinforcing portion 20 is the same as the arc radius of the curved outer edge of the bottom surface 11 of the base 10, so that when two corner buckles 100 are arranged side by side on the fixing structure 300, one side of one corner buckle 100 close to the curved outer edge of the bottom surface 11 can contact the side of the other corner buckle 100 close to the curved inner edge of the reinforcing portion 20, enabling the two corner buckles 100 to be arranged side by side on the fixing structure 300. The two side-by-side arranged corner buckles 100 can be respectively used to support two flat optical cables 200, enabling the two flat optical cables 200 to be arranged side by side on the fixing structure 300, which is beneficial for making full use of the space on the fixing structure 300, enabling more flat optical cables 200 to be arranged on the fixing structure 300, and improving the regularity of the position distribution of multiple flat optical cables 200 when multiple flat optical cables 200 are arranged on the fixing structure 300 at the same time.

[0084] In one embodiment, please refer to Figure 8 and Figure 9 , Figure 9 shows Figure 7The front view of the corner buckle 100 provided by the illustrated embodiment. The reinforcing portion 20 is parallel to the bottom surface 11, so that the pressure of the flat optical cable 200 on the base 10 is more evenly distributed by the reinforcing portion 20, further ensuring the structural strength of the corner buckle 100; at the same time, it is also beneficial to simplify the setting of the reinforcing portion 20, thereby simplifying the production and manufacturing of the corner buckle 100 and improving the manufacturing yield of the corner buckle 100. Exemplarily, please refer to Figure 9 , the surface of the reinforcing portion 20 close to the bottom surface 11 is flush with the bottom surface 11, so that the surface of the reinforcing portion 20 close to the bottom surface 11 and the bottom surface 11 are located on the same plane, the surface of the reinforcing portion 20 close to the bottom surface 11 is in contact with the bottom surface 11, and they together form the connection surface between the corner buckle 100 and the fixing structure 300, so that the connection area between the corner buckle 100 and the fixing structure 300 is increased, which is beneficial to improving the connection stability between the corner buckle 100 and the fixing structure 300.

[0085] In one embodiment, please refer to Figure 4 and Figure 9 , the inner side surface 13 is perpendicular to the bottom surface 11, which is beneficial to simplifying the structural setting of the base 10 and can also simplify the setting of the reinforcing portion 20. When the reinforcing portion 20 is parallel to the bottom surface 11, the reinforcing portion 20 is perpendicular to the inner side surface 13, which is beneficial to ensuring the improvement effect of the reinforcing portion 20 on the structural strength of the corner buckle 100.

[0086] In one embodiment, please refer to Figure 1 , Figure 4 and Figure 6 , the base 10 further has a top surface 14, the top surface 14 and the bottom surface 11 are arranged opposite to each other in the first direction (such as Figure 1 and Figure 4 shown in the Z direction), the side surface 12 and the inner side surface 13 are both located between the top surface 14 and the bottom surface 11, the two opposite edges of the top surface 14 are respectively connected to the second edge 122 of the side surface 12 and the inner side surface 13, and the inner side surface 13 and the side surface 12 are arranged opposite to each other in the direction perpendicular to the first direction, so that the structural setting of the base 10 is more reasonable, and the inclination angle of the side surface 12 relative to the bottom surface 11 is not restricted by the inner side surface 13, which is beneficial to ensuring that the included angle between the side surface 12 and the bottom surface 11 has a large variation range, and further ensuring the fitting degree between the side surface 12 and the flat optical cable 200. Exemplarily, please refer to Figure 4 and Figure 6 , the inner side surface 13 is perpendicular to the bottom surface 11, and in the plane perpendicular to the first direction, the orthographic projections of the side surface 12 and the top surface 14 are within the orthographic projection range of the bottom surface 11, which is beneficial to ensuring the miniaturization of the base 10 and providing more space for the setting of the flat optical cable 200 on the fixing structure 300.

[0087] In a possible embodiment, please refer to Figure 13 and Figure 14 ,Figure 13 1 shows a left side view of a corner buckle 100 with a connecting portion 60 provided in an embodiment of the present application. Figure 14 Shows Figure 13 The illustrated embodiment provides a bottom view of the corner buckle 100. The corner buckle 100 further includes a connecting portion 60, which is connected to the bottom surface 11 of the base 10 and is used to connect and fix the base 10 and the fixing structure 300.

[0088] In one embodiment, see Figure 13 and Figure 14 The corner buckle 100 includes a reinforcing portion 20, and the surface of the reinforcing portion 20 close to the bottom surface 11 is flush with the bottom surface 11, so that the surface of the reinforcing portion 20 close to the bottom surface 11 and the bottom surface 11 are located on the same plane, and the surface of the reinforcing portion 20 close to the bottom surface 11 is connected to the bottom surface 11, and the connecting portion 60 is connected to the bottom surface 11 of the base 10 and the surface of the reinforcing portion 20 close to the bottom surface 11, which is beneficial to increase the connection area between the corner buckle 100 and the fixed structure 300, and improve the stability of the connection between the corner buckle 100 and the fixed structure 300.

[0089] The connecting portion 60 may include a backing adhesive and a dustproof film, wherein the backing adhesive is disposed in a first direction (eg Figure 13 The two surfaces facing each other in the first direction (Z direction) are both adhesive, one of the surfaces of the adhesive in the first direction is connected to the base 10 and the reinforcing part 20, and the other surface of the adhesive in the first direction is connected to the dustproof film. When the corner buckle 100 is connected to the fixed structure 300, the dustproof film is uncovered to connect the other surface of the adhesive in the first direction to the fixed structure 300, which is conducive to simplifying the arrangement of the corner buckle 100 on the fixed structure 300. It can be understood that on the plane perpendicular to the first direction, the projection of the adhesive should be within the projection range of the dustproof film, so that the dustproof film can fully protect the adhesive and prevent the adhesive from losing its adhesiveness before being connected to the fixed structure 300.

[0090] For a possible implementation, see Figure 15 and Figure 16 , Figure 15 The structure diagram of the corner buckle 100 including the first part 15 and the second part 16 provided in the embodiment of the present application is shown. Figure 16 Shows Figure 15Schematic diagram of the structure after the first part 15 and the second part 16 of the corner buckle 100 provided by the shown embodiment rotate relative to each other. The base 10 includes a first part 15 and a second part 16 that are rotatably connected. The first part 15 has a first side surface 152 and a first bottom surface 151, and the second part 16 has a second side surface 162 and a second bottom surface 161. The bottom surface 11 of the base 10 includes the first bottom surface 151 of the first part 15 and the second bottom surface 161 of the second part 16, so that the first bottom surface 151 of the first part 15 and the second bottom surface 161 of the second part 16 can be jointly used to connect with the fixed structure 300. Since the first part 15 and the second part 16 are rotatably connected, when the first part 15 rotates relative to the second part 16, the relative positional relationship between the first bottom surface 151 and the second bottom surface 161 can be changed, so that the base 10 can adjust the shape of the bottom surface 11 according to actual needs to improve the applicability of the bottom surface 11 of the base 10. Similarly, the side surface 12 of the base 10 includes the first side surface 152 of the first part 15 and the second side surface 162 of the second part 16, so that the first side surface 152 of the first part 15 and the second side surface 162 of the second part 16 can be jointly used to connect with the flat optical cable 200. Since the first part 15 and the second part 16 are rotatably connected, when the first part 15 rotates relative to the second part 16, the included angle between the first side surface 152 and the second side surface 162 can be changed, so that the surface shape of the side surface 12 is changed, and the base 10 can adjust the surface shape of the side surface 12 according to actual needs to be applicable to flat optical cables 200 of different forms.

[0091] In one embodiment, please refer to Figure 16 , the bottom surface 11 is a plane, and the rotation axes of the first part 15 and the second part 16 are perpendicular to the bottom surface 11, so that the first part 15 and the second part 16 can rotate in a direction perpendicular to the first direction (such as Figure 16 the Z direction shown), which is beneficial to simplifying the rotation adjustment process of the first part 15 and the second part 16 and avoiding the influence of the relative rotation process of the first part 15 and the second part 16 on the connection between the corner buckle 100 and the fixed structure 300. Exemplarily, the shapes of both the bottom surface 11 and the side surface 12 are arc-shaped, and the rotation axes of the first part 15 and the second part 16 are located in the central region of the base 10 in the arc extension direction. When the first part 15 rotates clockwise relative to the second part 16, the arc radius of the first edge 121 of the side surface 12 increases, and the side surface 12 becomes smoother, so that the side surface 12 of the corner buckle 100 is applicable to the connection and support of flat optical cables 200 with a smaller bending amplitude; when the first part 15 rotates counterclockwise relative to the second part 16, the arc radius of the first edge 121 of the side surface 12 decreases, and the bending amplitude of the side surface 12 increases, so that the side surface 12 of the corner buckle 100 is applicable to the connection and support of flat optical cables 200 with a larger bending amplitude.

[0092] In a possible embodiment, please refer to Figure 7, the corner buckle 100 further includes a limiting portion 40. The limiting portion 40 is connected to the base 10. At least a part of the limiting portion 40 is located on the side of the side surface 12 away from the bottom surface 11, and at least a part of the limiting portion 40 protrudes relative to the side surface 12. When the bent portion of the flat optical cable 200 is connected to the side surface 12 of the base 10, the limiting portion 40 can limit the flat optical cable 200 on the side surface 12 of the base 10, which is beneficial to improving the connection stability between the flat optical cable 200 and the corner buckle 100. It can be understood that the limiting portion 40 is not located on the side of the bottom surface 11 away from the side surface 12, so that the limiting portion 40 does not protrude from the bottom surface 11, which is beneficial to ensuring the contact area between the bottom surface 11 and the fixing structure 300, and further improving the connection stability between the corner buckle 100 and the fixing structure 300.

[0093] The limiting portion 40 can be located on one side of the base 10 close to the first edge 121, or the limiting portion 40 can be located on one side of the base 10 close to the second edge 122, or the limiting portion 40 can be provided on both sides of the base 10 close to the first edge 121 and the second edge 122 to achieve the limiting effect on the flat optical cable 200 according to actual needs.

[0094] In one embodiment, please refer to Figure 7 , the number of the limiting portions 40 is at least two, and at least two limiting portions 40 are arranged at intervals to achieve multiple limitings on the flat optical cable 200 in the extending direction of the flat optical cable 200, improve the limiting effect of the limiting portion 40 on the flat optical cable 200. At least two limiting portions 40 arranged at intervals can be located on the same side of the base 10 close to the first edge 121, or at least two limiting portions 40 can be provided on both sides of the base 10 close to the first edge 121 and the second edge 122. Exemplarily, please refer to Figure 7 , the limiting portion 40 includes a first limiting portion 41 and a second limiting portion 42. Both the first limiting portion 41 and the second limiting portion 42 are connected to the first edge 121 of the side surface 12, and the first limiting portion 41 and the second limiting portion 42 are arranged at intervals in the extending direction of the first edge 121. Since the height of the first edge 121 relative to the bottom surface 11 in the first direction (such as Figure 7 the Z direction shown) is less than or equal to the height of the second edge 122 relative to the bottom surface 11 in the first direction, arranging the first limiting portion 41 and the second limiting portion 42 at the first edge 121 is beneficial to making full use of the space of the first edge 121 in the first direction and avoiding the problem that the height of the corner buckle 100 in the first direction is too high when the first limiting portion 41 and the second limiting portion 42 are arranged at the second edge 122, which is likely to interfere with other structures.

[0095] The limiting portion 40 can be connected to the side surface 12 to ensure the limiting effect of the limiting portion 40 on the flat optical cable 200 on the side surface 12. The limiting portion 40 can also be connected to other positions of the base 10 to avoid the limiting portion 40 occupying the space on the side surface 12 and ensure the connection area between the side surface 12 and the flat optical cable 200.

[0096] When the limiting portion 40 is located on a side of the base 10 close to the first edge 121, the limiting portion 40 can be connected to the side surface 12, and the limiting portion 40 limits the flat optical cable 200 to prevent the flat optical cable 200 from moving from the second edge 122 toward the first edge 121; when the limiting portion 40 is located on a side of the base 10 close to the second edge 122, the limiting portion 40 can be connected to the inner side surface 13 or the reinforcing portion 20, and part of the limiting portion 40 protrudes from the side surface 12 in the first direction, and the limiting portion 40 limits the flat optical cable 200 to prevent the flat optical cable 200 from moving from the first edge 121 toward the second edge 122.

[0097] In one embodiment, see Figure 7 and Figure 11 The bottom surface 11 is a plane, the first direction is perpendicular to the bottom surface 11, and the projection of part of the limiting portion 40 in the first direction is located on the side surface 12, so that the setting position of part of the limiting portion 40 is opposite to the side surface 12, which is conducive to ensuring the limiting effect of the limiting portion 40 on the flat optical cable 200 on the side surface 12 in the first direction. At the same time, the part of the limiting portion 40 whose projection in the first direction is located on the side surface 12 is arranged at an interval from the side surface 12, so that the part of the limiting portion 40 fully utilizes the space of the base 10 in the first direction, and realizes the limiting of the flat optical cable 200 by the limiting portion 40 in the first direction, avoiding the bending part of the flat optical cable 200 connected to the side surface 12 of the base 10 from tilting, which is conducive to improving the stability of the connection between the flat optical cable 200 and the corner buckle 100.

[0098] For example, see Figure 9 and Figure 10 The limiting portion 40 includes a supporting section 43 and an extending section 44 connected to each other. The supporting section 43 is connected to the first edge 121 of the side surface 12. The extending section 44 is located on the side of the supporting section 43 away from the side surface 12. The extending section 44 and the side surface 12 are spaced apart, and the supporting section 43 and the extending section 44 are spaced apart from each other in a first direction (such as Figure 9 and Figure 10The projections in the opposite direction of the Z direction (as shown) are all located on the side surface 12, so that the extension section 44, the support section 43, and the base 10 jointly enclose a semi-closed channel for accommodating the flat optical cable 200 and realizing the limitation of the flat optical cable 200, improving the connection stability between the flat optical cable 200 and the corner buckle 100. At the same time, the support section 43 and the side surface 12 are arranged at intervals, so that there is a gap between the support section 43 and the side surface 12, which is beneficial to simplifying the arrangement of the flat optical cable 200 on the side surface 12. The support section 43 can extend along the first direction to limit the flat optical cable 200 in the direction perpendicular to the first direction. The extension direction of the extension section 44 can form an angle with the extension direction of the support section 43 to limit the flat optical cable 200 in the first direction.

[0099] In a possible implementation manner, please refer to Figure 17 , Figure 17 which shows a schematic structural diagram of the corner buckle 100 with the expansion part 50 and the fixing part 30 provided by the embodiment of the present application. The corner buckle 100 further includes an expansion part 50. The expansion part 50 is connected to the first edge 121 of the base 10. The expansion part 50 is located on the side of the first edge 121 away from the second edge 122. The expansion part 50 is used to widen the base 10 on the side of the first edge 121 away from the second edge 122, providing space for the arrangement of other structures, avoiding the need for other structures to occupy the space of the side surface 12, and ensuring that there is sufficient connection area and connection stability between the side surface 12 of the base 10 and the flat optical cable 200.

[0100] The expansion part 50 and the base 10 can be an integral structure, or the expansion part 50 and the base 10 are two independent components connected to each other. The shape of the expansion part 50 can be set according to actual needs to appropriately expand the structure of the base 10 and ensure the miniaturization of the corner buckle 100. It should be avoided that the expansion part 50 is too large, resulting in too much occupied space of the corner buckle 100, which in turn affects the arrangement of the flat optical cable 200 on the fixing structure 300.

[0101] In one embodiment, please refer to Figure 18 , Figure 18 which shows Figure 17 a top view of the corner buckle 100 provided by the embodiment shown. The corner buckle 100 includes a base 10, a strengthening part 20, and an expansion part 50. The base 10, the strengthening part 20, and the expansion part 50 are in a plane perpendicular to the first direction (such as Figure 18The shapes of the orthographic projections on the plane where the X direction and the Y direction are located (in the figure) are both arc-shaped. The inner side surface 13 of the base 10 is connected to the curved outer edge of the reinforcing portion 20, and the first edge 121 of the base 10 is connected to the curved inner edge of the extension portion 50, so that the corner buckle 100 as a whole remains arc-shaped. By respectively arranging the reinforcing portion 20 and the extension portion 50 on both sides of the base 10, the overall volume of the corner buckle 100 is appropriately expanded, ensuring the structural strength of the corner buckle 100 and at the same time ensuring the miniaturization of the corner buckle 100. Exemplarily, the arc radius of the curved outer edge of the extension portion 50 is the same as the arc radius of the curved inner edge of the reinforcing portion 20. When two corner buckles 100 are arranged on the fixing structure 300 at the same time, one side of one corner buckle 100 close to the curved outer edge of the extension portion 50 can contact the side of the other corner buckle 100 close to the curved inner edge of the reinforcing portion 20, so that the two corner buckles 100 are arranged side by side on the fixing structure 300, which is beneficial to reducing the occupied space of the corner buckle 100 on the fixing structure 300 and providing more space for the arrangement of the flat optical cable 200 on the fixing structure 300.

[0102] In one embodiment, please refer to Figure 17 and Figure 19 , Figure 19 shows Figure 17 the front view of the corner buckle 100 provided by the embodiment shown. The extension portion 50 is parallel to the bottom surface 11. The surface of the extension portion 50 close to the bottom surface 11 in the first direction (such as Figure 17 and Figure 19 the Z direction shown) is flush with the bottom surface 11, so that the surface of the extension portion 50 close to the bottom surface 11 and the bottom surface 11 are located on the same plane. The surface of the extension portion 50 close to the bottom surface 11 is connected to the bottom surface 11 and together form the connection surface between the corner buckle 100 and the fixing structure 300, increasing the connection area between the corner buckle 100 and the fixing structure 300, which is beneficial to improving the connection stability between the corner buckle 100 and the fixing structure 300.

[0103] The limiting portion 40 can be connected to the extension portion 50. In one embodiment, please refer to Figure 17, the surface of the limiting portion 40 and the extending portion 50 away from the bottom surface 11 are connected, which is beneficial to ensuring the flatness of the corner buckle 100 on the side with the bottom surface 11, and further ensuring the connection stability between the corner buckle 100 and the fixing structure 300; at the same time, the connection between the limiting portion 40 and the extending portion 50 avoids the space occupied by the limiting portion 40 on the side surface 12, which is beneficial to ensuring that there is sufficient connection area and connection stability between the side surface 12 of the base 10 and the flat optical cable 200. The extending portion 50 can be connected to at least two limiting portions 40, and the at least two limiting portions 40 are spaced apart on the extending portion 50, and the at least two limiting portions 40 are sequentially spaced in the direction from the base 10 to the extending portion 50, which is beneficial to improving the limiting effect of the limiting portion 40 on the flat optical cable 200 at the side surface 12 of the base 10.

[0104] In a possible implementation manner, please refer to Figure 17 , the corner buckle 100 further includes a fixing portion 30, the fixing portion 30 is connected to the base 10, and the fixing portion 30 is located on at least one side of the base 10 in the extending direction of the first edge 121, so that the fixing portion 30 makes full use of the space on both sides of the base 10 in the extending direction of the first edge 121, avoiding the fixing portion 30 being arranged on the side surface 12 of the base 10, and the problem that the space occupied by the fixing portion 30 on the side surface 12 reduces the support and connection area of the side surface 12 for the flat optical cable 200.

[0105] The fixing portion 30 has a through groove 33, the through groove 33 is used to accommodate the flat optical cable 200, and the inner wall of the through groove 33 realizes the limiting of the flat optical cable 200, avoiding the flat optical cable 200 from tilting compared with the fixing structure 300, which is beneficial to further improving the connection stability between the flat optical cable 200 and the fixing structure 300. In one embodiment, please refer to Figure 12 , the corner buckle 100 includes a first fixing portion 31 and a second fixing portion 32, the first fixing portion 31 and the second fixing portion 32 are respectively located on both sides of the base 10 in the extending direction of the first edge 121, both the first fixing portion 31 and the second fixing portion 32 are used to realize the limiting of the flat optical cable 200, and the first fixing portion 31 and the second fixing portion 32 are spaced apart, so that the first fixing portion 31 and the second fixing portion 32 are evenly distributed in the extending direction of the flat optical cable 200, and the connection stability between the flat optical cable 200 and the fixing structure 300 is ensured in the extending direction of the flat optical cable 200.

[0106] The through slot 33 includes two opposite openings in its extending direction, and the openings of the through slot 33 correspond to the area between the first edge 121 and the second edge 122, ensuring that the bent portion of the flat optical cable 200 can be connected to the base 10, and the part of the flat optical cable 200 connected to both ends of the bent portion of the flat optical cable 200 can enter the through slot 33 through one of the openings of the through slot 33 and extend out of the through slot 33 through the other opening of the through slot 33. The flat optical cable 200 can pass through the through slot 33, avoiding the interference of the setting of the fixing portion 30 with the normal extension arrangement of the flat optical cable 200.

[0107] In one embodiment, please refer to Figure 17 and Figure 20 , Figure 20 which shows Figure 17 a schematic structural view of the corner buckle 100 provided by the shown embodiment disposed between the flat optical cable 200 and the fixing structure 300. The flat optical cable 200 includes a first section 201, a second section 202, and a third section 203 connected in sequence. The second section 202 is connected to the base 10, and the first section 201 and the third section 203 are connected to the fixing structure 300. The base 10 is respectively provided with a first fixing portion 31 and a second fixing portion 32 on opposite sides of the extending direction of the first edge 121. The first section 201 passes through the through slot 33 of the first fixing portion 31, and the third section 203 passes through the through slot 33 of the second fixing portion 32, so that the first fixing portion 31 and the second fixing portion 32 respectively limit the first section 201 and the third section 203, further ensuring the stability of the connection between the flat optical cable 200 and the fixing structure 300. Exemplarily, the first section 201 extends along the second direction (such as Figure 17 and Figure 20 the Y direction shown), the second direction is perpendicular to the first direction (such as Figure 17 and Figure 20 the Z direction shown), the third section 203 extends along the third direction (such as Figure 17 and Figure 20 the X direction shown), the third direction is perpendicular to both the first direction and the second direction, so that the through slots 33 of the two fixing portions 30 on both sides of the base 10 extend along the second direction and the third direction respectively, to realize the limitation of the flat optical cable 200 by the fixing portion 30 and avoid the interference of the fixing portion 30 with the normal extension arrangement of the flat optical cable 200.

[0108] In one embodiment, please refer to Figure 17 and Figure 19 , the extending direction of the through slot 33 is perpendicular to the first direction, and the through slot 33 includes two opposite openings in its extending direction, so that the flat optical cable 200 can pass through the through slot 33 from the two openings. The through slot 33 also has a slot opening and a bottom wall. The slot opening of the through slot 33 and the bottom wall of the through slot 33 are oppositely arranged in the first direction, and the slot opening of the through slot 33 is located on the side of the bottom wall of the through slot 33 close to the bottom surface 11. Please refer toFigure 20 When the corner buckle 100 is arranged on the fixing structure 300, the notch of the through groove 33 faces the fixing structure 300, and the fixing part 30 covers the flat optical cable 200, so that the bottom wall of the through groove 33 can limit the flat optical cable 200 in the first direction and prevent the flat optical cable 200 from warping. At the same time, the notch of the through groove 33 is communicated with the opening of the through groove 33, so that the through groove 33 is a semi-open structure. The fixing part 30 only needs to cover the flat optical cable 200 to limit the flat optical cable 200, without passing the flat optical cable 200 through the two openings of the through groove 33 to the fixing part 30, which is beneficial to simplifying the setting process of the fixing part 30 relative to the flat optical cable 200.

[0109] In one embodiment, please refer to Figure 17 , the fixing part 30 can be connected to the extension part 50. The shape of the extension part 50 is arc-shaped. The curved inner edge of the extension part 50 is connected to the first edge 121 of the base 10. The curved outer edge of the extension part 50 is located on the side of the extension part 50 away from the base 10. The corner buckle 100 includes two fixing parts 30, and the two fixing parts 30 are respectively located at both ends of the extension part 50 in the arc extension direction, and the two fixing parts 30 are respectively connected to the curved outer edge of the extension part 50, avoiding the fixing part 30 occupying the space on the side surface 12, which is beneficial to ensuring that there is enough connection area and connection stability between the side surface 12 of the base 10 and the flat optical cable 200. Part of the fixing part 30 can be arranged at intervals with the extension part 50 in the curved extension direction of the extension part 50, avoiding the extension part 50 interfering with the arrangement of the flat optical cable 200 at the fixing part 30, which is beneficial to simplifying the process of the flat optical cable 200 passing through the channel of the fixing part 30.

[0110] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A corner buckle (100), characterized in that It includes a base (10), the base (10) has a bottom surface (11) and a side surface (12), the side surface (12) has opposite first edge (121) and second edge (122), the first edge (121) is connected to the bottom surface (11), at least part of the second edge (122) is spaced from the bottom surface (11), the side surface (12) bulges towards the side away from the bottom surface (11), the side surface (12) and the bottom surface (11) have an included angle, and in the direction from both ends of the second edge (122) to the central region, the included angle between the side surface (12) and the bottom surface (11) gradually increases.

2. The corner buckle (100) according to claim 1, characterized in that, The bottom surface (11) is a plane, and in the direction from both ends of the second edge (122) to the central region, the distance between the second edge (122) and the bottom surface (11) in the first direction gradually increases, and the first direction is perpendicular to the bottom surface (11).

3. The corner buckle (100) according to claim 1, characterized in that, Both ends of the second edge (122) are connected to the bottom surface (11).

4. The corner buckle (100) according to claim 2, characterized in that, The shape of the side surface (12) is arc-shaped, the first edge (121) forms the curved outer edge of the side surface, and the second edge (122) forms the curved inner edge of the side surface.

5. The corner buckle (100) according to claim 4, characterized in that, At the curve center of the second edge (122), the included angle between the side surface (12) and the bottom surface (11) is the largest.

6. The corner buckle (100) according to claim 4, wherein The arc radius of the second edge (122) is less than or equal to the arc radius of the first edge (121).

7. The corner buckle (100) according to any one of claims 4 to 6, characterized in that, The shape of the bottom surface (11) is arc-shaped, the base (10) further has an inner side surface (12), the inner side surface (12) is connected to the side of the bottom surface (11) close to its curved inner edge, the side surface (12) is connected to the side of the bottom surface (11) close to its curved outer edge, and the corner buckle (100) further includes a reinforcing part (20), and the reinforcing part (20) is connected to the inner side surface (12).

8. The corner buckle (100) according to claim 7, characterized in that, The reinforcing part (20) is parallel to the bottom surface (11).

9. The corner buckle (100) according to claim 7, characterized in that, The inner side surface (12) is perpendicular to the bottom surface (11).

10. The corner buckle (100) according to any one of claims 1 to 6, 8, and 9, characterized in that, The base (10) includes a first part (15) and a second part (16) that are rotatably connected, the bottom surface (11) includes a first bottom surface (11) located on the first part (15) and a second bottom surface (11) located on the second part (16), and the side surface (12) includes a first side surface (12) located on the first part (15) and a second side surface (12) located on the second part (16).

11. The corner buckle (100) according to claim 10, characterized in that, The rotation axis of the first part (15) and the second part (16) is perpendicular to the bottom surface (11).

12. The corner buckle (100) according to claim 1, characterized in that, The corner buckle (100) further includes a limiting part (40), the limiting part (40) is connected to the base (10), and at least part of the limiting part (40) is located on the side of the side surface (12) away from the bottom surface (11) and protrudes from the side surface (12).

13. The corner buckle (100) according to claim 12, characterized in that, The bottom surface (11) is a plane. Taking the direction perpendicular to the bottom surface (11) as the first direction, part of the limiting portion (40) is arranged at an interval from the side surface (12), and the projection of part of the limiting portion (40) in the first direction is located on the side surface (12).

14. The corner buckle (100) according to claim 13, characterized in that, The limiting portion (40) includes a connected support section (43) and an extension section (44). The support section (43) is connected to the first edge (121), the extension section (44) is arranged at an interval from the side surface (12), and the projections of the support section (43) and the extension section (44) in the first direction are both located on the side surface (12).

15. The corner buckle (100) according to any one of claims 12 to 14, characterized in that, The corner buckle (100) further includes an extension portion (50). The extension portion (50) is connected to the first edge (121). The extension portion (50) is located on the side of the first edge (121) away from the second edge (122), and the limiting portion (40) is connected to the extension portion (50).

16. The corner buckle (100) according to any one of claims 12 to 14, characterized in that, The number of the limiting portions (40) is at least two, and at least two of the limiting portions (40) are arranged at intervals.

17. The corner buckle (100) according to any one of claims 1 to 6, 8, 9, 11 to 14, characterized in that, The corner buckle (100) further includes a fixing portion (30). The fixing portion (30) is connected to the base (10). The fixing portion (30) is located on at least one side of the base (10) in the extending direction of the first edge (121). The fixing portion (30) has a through groove (33), and the opening of the through groove (33) corresponds to the area between the first edge (121) and the second edge (122).

18. The corner buckle (100) according to claim 17, characterized in that, The extending direction of the through groove (33) is parallel to the bottom surface (11). The notch and the bottom wall of the through groove (33) are oppositely arranged in the direction perpendicular to the bottom surface (11). The notch of the through groove (33) is communicated with the opening of the through groove (33), and the notch of the through groove (33) is located on the side of the bottom wall of the through groove (33) close to the bottom surface (11).

19. The corner buckle (100) according to claim 17, characterized in that, The number of the fixing portions (30) is two, and the two fixing portions (30) are respectively located on both sides of the base (10) in the extending direction of the first edge (121).

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