A lace buckle and a lace tying method using the same

By designing a combination of end buckles and middle buckles for shoelaces, the problems of loose shoelaces and inconvenience in putting on and taking off shoes are solved, achieving a secure fixation of shoelaces and improved safety.

CN115553532BActive Publication Date: 2026-05-29JINJIANG DOSEN FASHION ACCESSORIES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JINJIANG DOSEN FASHION ACCESSORIES CO LTD
Filing Date
2022-10-27
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The existing shoelace structure is complicated and inconvenient to put on and take off, and the shoelaces are prone to loosening, posing a safety hazard and affecting the wearer's experience and safety.

Method used

Design a shoelace buckle, including a shoelace end buckle and a shoelace middle buckle. Through the combination structure of clamping groove, hook groove, elastic arm and hook, the movable end of the shoelace is fixed and connected, ensuring that the shoelace is neat and secure on the shoe surface.

Benefits of technology

It simplifies the process of tightening shoelaces, prevents shoelaces from loosening and falling off, improves the safety of wearing and the convenience of operation, and ensures that the shoelaces are fixed firmly on the shoe surface.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a shoelace buckle and a shoelace tying method using the same, which comprises a shoelace end buckle for fixing two shoelace movable ends and a shoelace middle buckle arranged in the middle part of the shoelace, and the shoelace middle buckle is arranged on the middle part of the shoelace; the two shoelace movable ends are respectively interlaced and threaded from top to bottom through the threading holes of the vamp; after the two shoelace movable ends are threaded out of the lowermost threading hole of the vamp, the shoelace movable ends are fixed on the shoelace end buckle; the tightness of the shoelace is adjusted from bottom to top, the excess shoelace is adjusted to the uppermost end, and then the shoelace middle buckle is movably connected to the shoelace end buckle; the shoelace which is threaded out of the threading hole of the vamp can be fixed on the vamp through the shoelace end buckle and the shoelace middle buckle, the vamp is more tidy and safe, and the user is more convenient to operate; the safety hazard that the wearer steps on the shoelace and falls down due to the random scattering of the shoelace on the vamp or the loose shoelace is avoided.
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Description

Technical Field

[0001] This invention relates to the technical field of footwear and apparel accessories, and in particular to a shoelace buckle and a shoelace tying method using the shoelace buckle. Background Technology

[0002] Shoes are tools used to protect feet from injury and facilitate walking. There are many types of shoes available, which can be divided into lace-up shoes and non-lace-up shoes based on their lacing structure. Most athletic shoes or casual shoes are lace-up, requiring the untying and tightening of shoelaces each time they are put on or taken off. Lacing is complicated, and after tightening, the shoelaces are scattered on the shoe surface, making the shoe look messy. In addition, some athletic shoes have cat's eye buckles on the shoelaces. When tightening the shoelaces, the cat's eye buckles help to tighten the shoelaces and thus tighten the shoe upper. However, when using cat's eye buckles to tighten the shoelaces, the two movable ends of the shoelaces extend outwards after passing through the buckle. The movable ends of the shoelaces are in a free state, and the shoelaces outside the shoe upper are relatively long. During exercise, running, or walking, the shoelaces are prone to loosening, and the wearer may trip and fall, posing a certain safety hazard.

[0003] In view of this, the inventor, in order to address the numerous shortcomings and inconveniences caused by the imperfections in the design of the aforementioned shoelace buckles and shoelace tying methods, has deeply conceived, actively researched, and experimented with improvements to develop this invention. Summary of the Invention

[0004] The purpose of this invention is to provide a shoelace buckle and a shoelace tying method using the shoelace buckle, which can fix the shoelaces that protrude from the shoelace holes on the shoe upper to the shoe upper through the shoelace end buckle and the shoelace middle buckle, making the shoe upper neater, safer, and easier for the user to operate; avoiding the safety hazard of the wearer stepping on the shoelaces and falling due to the shoelaces being scattered on the shoe upper or the shoelaces being loose.

[0005] To achieve the above objectives, the solution of the present invention is:

[0006] A shoelace buckle includes a shoelace end buckle for fixing two movable ends of a shoelace and a shoelace middle buckle inserted in the middle of the shoelace. The shoelace end buckle is provided with a clamping part for clamping the two movable ends of the shoelace. The shoelace middle buckle is provided with a shoelace hole for the shoelace to pass through. The shoelace end buckle is provided with a first connecting part, and the shoelace middle buckle is provided with a second connecting part that is movably connected to the first connecting part.

[0007] The first connecting part is a buckle on the end buckle of the shoelace, and the second connecting part is a hook on the middle buckle of the shoelace and hooked onto the buckle.

[0008] The shoelace end buckle has an upper buckle body and a lower buckle body. The upper buckle body is provided with a first clamping groove passing through the left and right ends of the upper buckle body and hook grooves located on the two inner side walls of the first clamping groove. The lower buckle body is provided with a second clamping groove and barbs located on the two outer side walls of the second clamping groove. The left and right ends of the lower buckle body are provided with open through grooves for the shoelace to pass through. When clamping the movable ends of the shoelace, the two movable ends of the shoelace are first inserted into the second clamping groove through the two open through grooves respectively. Then, the upper buckle body is closed on the lower buckle body. The two barbs are respectively hooked into the two hook grooves. The second clamping groove is closed into the first clamping groove to form a clamping part for clamping the movable ends of the shoelace. The two movable ends of the shoelace are clamped and fixed in the shoelace end buckle.

[0009] The bottom wall of the first clamping groove is provided with a plurality of first pointed protrusions, and the bottom wall of the second clamping groove is provided with a plurality of second pointed protrusions; when the upper buckle body is closed to the lower buckle body, the first pointed protrusions and the second pointed protrusions are staggered.

[0010] The bottom wall of the first clamping groove is provided with two rows of first pointed protrusions, with three first pointed protrusions in each row; the bottom wall of the second clamping groove is provided with two rows of second pointed protrusions, with three second pointed protrusions in each row; the bottom wall of the first clamping groove is also provided with two small pointed protrusions, which are located on both sides of the first pointed protrusions in the middle of one row, and the protrusion height of the first pointed protrusions is greater than the protrusion height of the small pointed protrusions; and the two small pointed protrusions and the two second pointed protrusions located in the middle are arranged vertically opposite each other.

[0011] The lower buckle body is symmetrically spaced with two partitions at the middle position of the second clamping groove. The space between the two partitions is a receiving groove for the movable end of the shoelace. Each partition is provided with an opening for the movable end of the shoelace to pass through the second clamping groove into the receiving groove. Two arc-shaped top stops are provided in the receiving groove to press the movable ends of the two shoelaces tightly.

[0012] A plug is provided at the middle position of the receiving groove, and the upper buckle is provided with a plug groove for the plug to be inserted.

[0013] The two outer side walls of the lower buckle are provided with push grooves opposite the barbs, and the push grooves are vertically connected to the barbs.

[0014] The shoelace center buckle has a first buckle and a second buckle. The first buckle has an open cavity for locking the second buckle and two shoelace holes on the bottom wall of the open cavity. The movable end of one shoelace passes through one shoelace hole into the open cavity and exits through the other shoelace hole, thus sliding the shoelace center buckle to the middle of the shoelace. The second buckle has two elastic arms spaced apart, and hooks are respectively provided on the outer side walls of the two elastic arms. The left and right side walls of the open cavity are provided with buckle grooves for the hooks to engage.

[0015] The oral cavity has two spring rings at the opening. One side of the spring ring is fixed to the side wall of the oral cavity, and the other side of the spring ring is suspended inside the oral cavity. The second fastener presses the spring ring into the oral cavity and its end is pressed against the shoelace against the bottom wall of the oral cavity.

[0016] Each of the two elastic arms has a slot on its inner side, and a cross-shaped through groove is formed between the two elastic arms.

[0017] The oral cavity is gradually widened from the bottom wall of the oral cavity towards the opening.

[0018] The hook is disposed on the second fastener and located outside the opening; the hook has a horizontal portion extending outward from the second fastener, a vertical plate extending downward from the horizontal portion, and a protrusion disposed on the vertical plate to prevent the hook from falling out of the buckle.

[0019] A method of tying shoelaces using shoelace buckles, comprising the following steps:

[0020] S1. A middle buckle is threaded through the middle of the shoelace, and a hook is provided on the middle buckle.

[0021] S2. The two movable ends of the shoelaces are interwoven from top to bottom and wrapped around the shoe upper eyelet;

[0022] S3. After the two movable ends of the shoelaces pass through the shoelace holes at the bottom of the shoe upper, the movable ends of the shoelaces are fixed to the shoelace end buckle, and the shoelace end buckle is provided with a buckle ring.

[0023] S4. Adjust the tightness of the shoelaces from bottom to top, and pull the shoelaces out from the top eyelet on the shoe.

[0024] S5. The hook of the middle buckle of the shoelace is hooked onto the loop of the shoelace end buckle. The shoelace that extends out of the uppermost shoelace hole is pulled from the uppermost shoelace hole to the lowermost shoelace hole and then fixed to the shoe surface.

[0025] The shoelace buckle has a first buckle and a second buckle. The first buckle has an open cavity for locking the second buckle and two shoelace holes on the bottom wall of the open cavity. The second buckle has two elastic arms spaced apart, and hooks are provided on the outer side walls of the two elastic arms respectively. The left and right side walls of the open cavity are provided with buckle grooves for the hooks to engage.

[0026] The shoelace end buckle has an upper buckle body and a lower buckle body. The upper buckle body is provided with a first clamping groove passing through the left and right ends of the upper buckle body and hook grooves located on the two inner side walls of the first clamping groove. The lower buckle body is provided with a second clamping groove and barbs located on the two outer side walls of the second clamping groove. The left and right ends of the lower buckle body are provided with open through grooves for the shoelace to pass through. When clamping the movable ends of the shoelace, the two movable ends of the shoelace are first inserted into the second clamping groove through the two open through grooves respectively. Then, the upper buckle body is closed on the lower buckle body, and the two barbs are respectively hooked into the two hook grooves. The second clamping groove is closed into the first clamping groove to form a clamping part for clamping the movable ends of the shoelace. The two movable ends of the shoelace are clamped and fixed in the shoelace end buckle. The shoelace end buckle is provided with a buckle ring, and the middle buckle of the shoelace is provided with a hook part that hooks onto the buckle ring.

[0027] First, one movable end of the shoelace passes through one shoelace hole into the opening chamber and exits through another shoelace hole, and the center buckle is slid to the middle of the shoelace. Then, the two elastic arms of the second buckle are inserted into the opening of the opening chamber, and the second buckle presses the spring ring into the opening chamber and presses against the shoelace against the bottom wall of the opening chamber. Next, the two movable ends of the shoelace interweave and wrap around multiple shoelace holes from top to bottom. Next, after the two movable ends of the shoelace pass through the bottom shoelace hole, they are placed in the second clamping groove of the lower buckle body. Then, the upper buckle body is fastened to the lower buckle body, and the movable ends of the shoelace are clamped and fixed in the clamping part. The tightness of the shoelace is adjusted from bottom to top, and the shoelace is pulled out from the top shoelace hole. Finally, the center buckle of the shoelace is hooked onto the buckle ring and connected to the shoelace end buckle.

[0028] The oral cavity has two spring rings at the opening. One side of the spring ring is fixed to the side wall of the oral cavity, and the other side of the spring ring is suspended inside the oral cavity. The second fastener presses the spring ring into the oral cavity and abuts against the bottom wall of the oral cavity, and the hook is located outside the first fastener.

[0029] The bottom wall of the first clamping groove is provided with a plurality of first pointed protrusions, and the bottom wall of the second clamping groove is provided with a plurality of second pointed protrusions; when the upper buckle body is closed to the lower buckle body, the first pointed protrusions and the second pointed protrusions are staggered.

[0030] The bottom wall of the first clamping groove is provided with two rows of first pointed protrusions, with three first pointed protrusions in each row; the bottom wall of the second clamping groove is provided with two rows of second pointed protrusions, with three second pointed protrusions in each row; the bottom wall of the first clamping groove is also provided with two small pointed protrusions, which are located on both sides of the first pointed protrusions in the middle of one row, and the protrusion height of the first pointed protrusions is greater than the protrusion height of the small pointed protrusions; and the two small pointed protrusions and the two second pointed protrusions located in the middle are arranged vertically opposite each other.

[0031] The lower buckle body has two partitions symmetrically spaced at the middle position of the second clamping groove. The space between the two partitions is a receiving groove for the movable end of the shoelace. Each partition has an opening for the movable end of the shoelace to pass through the second clamping groove into the receiving groove. Two arc-shaped top-mounted fasteners are provided within the receiving groove to press against the movable ends of the shoelaces. The arc-shaped top-mounted fasteners are directly opposite the openings and spaced apart from them. The height of the arc-shaped top-mounted fasteners is less than the height of the partitions.

[0032] A plug is provided at the middle position of the receiving groove, and the upper buckle is provided with a plug groove for the plug to be inserted.

[0033] After the middle buckle is threaded onto the shoelaces and before the shoelaces are threaded through the eyelet on the shoe upper, an adjustment buckle is also threaded onto the shoelaces.

[0034] With the above structure, when the shoelace buckle of the present invention is used on the shoe, the middle buckle can be threaded onto the shoelace first, then the shoelace can be wrapped around the lanyard hole on the shoe upper, and then the movable end of the shoelace can be fixed to the end buckle. Then, the wearer can adjust the tightness of the shoelace by adjusting the shoelace towards either the end buckle or the middle buckle, so that the shoelaces protruding from the lanyard hole on the shoe upper are uniformly located on the side of the end buckle or the side of the middle buckle. Finally, the end buckle and the middle buckle are connected together, which can fix the shoelaces protruding from the lanyard hole on the shoe upper through the end buckle and the middle buckle, making the shoe upper neater, safer, and easier for the user to operate. It avoids the safety hazard of the wearer stepping on the shoelaces and falling due to the shoelaces being scattered on the shoe upper or the shoelaces being loose.

[0035] When tying shoelaces using the shoelace buckle of this invention, the middle buckle is first threaded onto the shoelace. Then, the two movable ends of the shoelaces are interlaced from top to bottom and wrapped around the lacing holes on the shoe upper. The movable ends of the shoelaces are then secured to the shoelace end buckle. Next, the wearer adjusts the tightness of the shoelaces from bottom to top, pulling the shoelaces out from the top lacing hole and tightening them at the top lacing hole. Finally, the hook of the middle buckle is pulled to engage with the loop of the shoelace end buckle. The middle buckle can pull the shoelaces from the top lacing hole to the bottom lacing hole, securing them to the shoe upper. This method of tying shoelaces is simpler and more secure. Furthermore, the shoe upper is neater and safer; it avoids the safety hazard of shoelaces being scattered on the shoe upper or loose, which could cause the wearer to step on the shoelaces and fall; moreover, the shoelace end buckle and the shoelace middle buckle are located at the upper and lower ends of the shoe upper's lacing hole, respectively. The shoelaces extending out of the shoe upper's lacing hole cross from the upper end to the lower end of the lacing hole, which can stretch the shoelaces as much as possible to fit against the shoe upper; moreover, the movable end of the shoelace is located at the lowermost lacing hole position. Since the shoelace at the lowermost lacing hole position is relatively fixed and will not be pulled, that is, the movable end of the shoelace will not be pulled when putting on or taking off the shoes, and can be more firmly fixed to the shoelace end buckle. Attached Figure Description

[0036] Figure 1 This is a front structural diagram of the shoelace buckle of the present invention;

[0037] Figure 2 This is a schematic diagram of the back structure of the shoelace buckle of the present invention;

[0038] Figure 3 This is a side view of the shoelace buckle of the present invention;

[0039] Figure 4 This is a top view of the shoelace buckle of the present invention;

[0040] Figure 5 for Figure 4 Cross-sectional view along the AA direction;

[0041] Figure 6 for Figure 4 Cross-sectional view along the middle BB direction;

[0042] Figure 7 This is an exploded view of the shoelace end buckle of the present invention. Figure 1 ;

[0043] Figure 8 This is an exploded view of the shoelace end buckle of the present invention. Figure 2 ;

[0044] Figure 9 This is a side exploded view of the shoelace end buckle of the present invention;

[0045] Figure 10 This is an exploded view of the middle buckle of the shoelaces of the present invention. Figure 1 ;

[0046] Figure 11 This is an exploded view of the middle buckle of the shoelaces of the present invention. Figure 2 ;

[0047] Figure 12 This is an exploded side view of the shoelace center buckle of the present invention;

[0048] Figure 13 This is a front structural diagram of the shoelace buckle of the present invention for threading shoelaces;

[0049] Figure 14 This is a schematic diagram of the back structure of the shoelace buckle of the present invention for threading shoelaces;

[0050] Figure 15 This is a cross-sectional schematic diagram of the shoelace end buckle fixing the movable end of the shoelace according to the present invention;

[0051] Figure 16 This is a schematic diagram of the shoelace buckle of the present invention applied to a shoe.

[0052] Symbol Explanation

[0053] Shoelace 10; Shoelace movable end 100; Shoe upper lace hole 200; Shoelace end buckle 1; Shoelace middle buckle 2; Shoelace through hole 211; Buckle ring 13; Hook 23; Upper buckle body 11; Lower buckle body 12; First clamping groove 111; Hook groove 112; Second clamping groove 121; Back hook 122; Opening through groove 123; First pointed protrusion 1111; Second pointed protrusion 1211; Small pointed protrusion 1112; Partition 124; Receiving groove 125; Opening 1241; Rounded top stop part 1242; Insertion post 126; Insertion groove 114; First fastener 21; Second fastener 22; Opening chamber 212; Elastic arm 221; Hook 222; Buckle groove 213; Spring ring 214; Slot 2211; Horizontal part 231; Vertical plate 232; Protrusion 233. Detailed Implementation

[0054] To further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0055] Please see Figures 1 to 16 This invention discloses a shoelace buckle, comprising a shoelace end buckle 1 for fixing two movable ends 100 of the shoelaces and a shoelace middle buckle 2 inserted in the middle of the shoelaces 10. The shoelace end buckle 1 is provided with a clamping part for movably clamping the two movable ends 100 of the shoelaces. The shoelace middle buckle 2 is provided with a shoelace hole 211 for the shoelaces 10 to pass through. The shoelace end buckle 1 is provided with a first connecting part, and the shoelace middle buckle 2 is provided with a second connecting part movably connected to the first connecting part.

[0056] When using the shoelace buckle of this invention, the middle buckle 2 is first threaded onto the shoelace 10, then the shoelace 10 is wrapped around the lacing hole 200 on the shoe upper. Next, the movable end 100 of the shoelace is fixed to the shoelace end buckle 1. Then, the wearer adjusts the tightness of the shoelace 10 by adjusting it uniformly towards either the shoelace end buckle 1 or the middle buckle 2, ensuring that the shoelace 10 extending beyond the lacing hole 200 is uniformly positioned on either the side of the shoelace end buckle 1 or the side of the shoelace end buckle 2. Finally, the shoelace end buckle 1 and the middle buckle 2 are connected together, thus fixing the shoelace 10 extending beyond the lacing hole 200 to the shoe upper. This makes the shoe upper neater, safer, and easier for the user to operate. It avoids the safety hazard of the shoelace 10 being scattered on the shoe upper or loose, which could cause the wearer to step on the shoelace 10 and fall. Furthermore, the shoelace end buckle... 1. The middle buckle 2 of the shoelace is located at the upper and lower ends of the shoe upper lacing hole 200. The shoelace 10 extending out of the shoe upper lacing hole 200 crosses from the upper end to the lower end of the shoe upper lacing hole 200. The shoelace 10 should be pulled as flat as possible and placed against the shoe upper. When the shoelace end buckle 1 is located at the lowermost shoe upper lacing hole 200, the tightness of the shoelace 10 can be adjusted from bottom to top. Pull the shoelace 10 out from the uppermost shoe upper lacing hole 200, and the middle buckle 2 can... Pull the shoelace 10 from the uppermost shoe upper eyelet 200 to the lowermost shoe upper eyelet 200 to fix the shoelace 10 to the shoe upper; moreover, the movable end 100 of the shoelace is located at the lowermost shoe upper eyelet 200. Since the shoelace 10 at the lowermost shoe upper eyelet 200 is relatively fixed and will not be pulled, that is, the movable end 100 of the shoelace will not be pulled when putting on or taking off the shoes, and can be more firmly fixed to the shoelace end buckle 1.

[0057] The first connecting part of the present invention is a buckle 13 disposed on the shoelace end buckle 1, and the second connecting part is a hook 23 disposed on the shoelace middle buckle 2 and hooked onto the buckle 13; the shoelace end buckle 1 and the shoelace middle buckle 2 can be movably connected together through the buckle 13 and the hook 23 cooperation structure, which facilitates hooking and unhooking.

[0058] The shoelace end buckle 1 of the present invention has an upper buckle body 11 and a lower buckle body 12. The upper buckle body 11 is provided with a first clamping groove 111 passing through the left and right ends of the upper buckle body 11 and hook grooves 112 located on the two inner side walls of the first clamping groove 111. The lower buckle body 12 is provided with a second clamping groove 121 and barbs 122 provided on the two outer side walls of the second clamping groove 121. The left and right ends of the lower buckle body 12 are provided with openings for the shoelace 10 to pass through. Groove 123; When clamping the movable end 100 of the shoelace, first insert the two movable ends 100 of the shoelace into the second clamping groove 121 through the two open through grooves 123 respectively, then cover the upper buckle body 11 on the lower buckle body 12, and the two barbs 122 are respectively hooked into the two hook grooves 112. The second clamping groove 121 is fastened into the first clamping groove 111 to form the clamping part for clamping the movable end 100 of the shoelace. The two movable ends 100 of the shoelace are clamped and fixed in the shoelace end buckle 1.

[0059] The bottom wall of the first clamping groove 111 of the present invention is provided with a plurality of first pointed protrusions 1111; the bottom wall of the second clamping groove 121 is provided with a plurality of second pointed protrusions 1211; when the upper buckle 11 covers the lower buckle 12, the first pointed protrusions 1111 and the second pointed protrusions 1211 are staggered; when the upper buckle 11 and the lower buckle 12 are fastened, the tips of the first pointed protrusions 1111 and the second pointed protrusions 1211 can press tightly against each other on the movable end 100 of the shoelace, so as to clamp the movable end 100 of the shoelace more firmly on the clamping part and prevent the movable end 100 of the shoelace from coming off the shoelace end buckle 1.

[0060] The bottom wall of the first clamping groove 111 of the present invention is provided with two rows of first pointed protrusions 1111, with three protrusions 1111 in each row; the bottom wall of the second clamping groove 121 is provided with two rows of second pointed protrusions 1211, with three protrusions 1211 in each row; the bottom wall of the first clamping groove 111 is also provided with two small pointed protrusions 1112, which are located on both sides of the first pointed protrusions 1111 in the middle of one row. The protrusion height of 11 is the same as that of the second pointed protrusion 1211. The protrusion height of the first pointed protrusion 1111 is greater than that of the small pointed protrusion 1112. The two small pointed protrusions 1112 and the two second pointed protrusions 1211 located in the middle are arranged vertically opposite each other. The structure of the small pointed protrusions 1112 and the second pointed protrusion 1211 can tightly abut against each other on the movable end 100 of the shoelace, and clamp the movable end 100 of the shoelace more firmly on the clamping part to prevent the movable end 100 of the shoelace from coming off the shoelace end buckle 1.

[0061] The lower buckle body 12 of the present invention is provided with two partitions 124 symmetrically spaced at the middle position of the second clamping groove 121. The space between the two partitions 124 is a receiving groove 125 for the movable end of the shoelace. Each partition 124 is provided with an opening 1241 for the movable end of the shoelace 100 to pass through the second clamping groove 121 into the receiving groove 125. Two arc-shaped top fasteners 1242 are provided in the receiving groove 125 to press the two movable ends of the shoelace 100 tightly. When the movable end of the shoelace 100 passes through the opening 1241 from the second clamping groove 121 into the receiving groove 125, and is pressed on the movable end of the shoelace 100 by the arc-shaped top fasteners 1242, the movable end of the shoelace 100 can be firmly fixed in the receiving groove 125, further reinforcing and fixing the movable end of the shoelace 100 and preventing the movable end of the shoelace 100 from coming off the shoelace end buckle 1.

[0062] The arc-shaped top stop 1242 of the present invention is positioned opposite to and spaced apart from the opening 1241. The height of the arc-shaped top stop 1242 is less than the height of the partition 124. The first pointed protrusion 1111, the second pointed protrusion 1211 and the arc-shaped top stop 1242 can double-press the movable end 100 of the shoelace, making the movable end 100 of the shoelace more firmly fixed to the shoelace end buckle 1. Furthermore, the arc-shaped top side of the arc-shaped top stop 1242 will not damage the movable end 100 of the shoelace when pressing it.

[0063] A plug post 126 is provided at the middle position of the receiving groove 125 of the present invention, and the upper buckle body 11 is provided with a plug groove 114 for the plug post 126 to be inserted; the plug post 126 is a cylindrical structure, and the plug groove 114 is a cylindrical groove; the plug-in mating structure of the plug post 126 and the plug groove 114 can make the upper buckle body 11 and the lower buckle body 12 more securely fastened, thereby making the movable end 100 of the shoelace more securely fixed to the shoelace end buckle 1.

[0064] The two outer side walls of the lower buckle body 12 of the present invention are provided with push grooves 1221 opposite to the barbs 122. The push grooves 1221 are vertically connected to the barbs 122. When the shoelace end buckle 1 is unbuckled, a rod is inserted into each push groove 1221. The push rod pushes the barbs 122 out of the hook groove 112, and the upper buckle body 11 and the lower buckle body 12 are unbuckled, which is convenient for unbuckled. The two outer side walls of the lower buckle body 12 are respectively provided with two barbs 122 and two push grooves 1221. At the same time, four barbs 122 are pushed to facilitate unbuckled.

[0065] The shoelace center buckle 2 of the present invention has a first buckle 21 and a second buckle 22. The first buckle 21 is provided with an open cavity 212 for engaging the second buckle 22 and two shoelace through holes 211 provided on the bottom wall of the open cavity 212. The second buckle 22 has two elastic arms 221 spaced apart, and hooks 222 are respectively provided on the outer side walls of the two elastic arms 221. The left and right side walls of the open cavity 212 are provided with buckle grooves 213 for the hooks 222 to engage. When the shoelace center buckle 2 is threaded onto the shoelace, firstly, the two... The movable ends 100 of the shoelaces pass through the two shoelace holes 211 of the first buckle 21, and the two elastic arms 221 of the second buckle 22 are inserted into the opening chamber 212. The two hooks 222 are respectively hooked into the buckle groove 213. The end of the second buckle 22 abuts against the bottom wall of the opening chamber 212, which facilitates the assembly of the middle buckle 2 of the shoelaces onto the shoelaces 10. When unhooking the middle buckle 2 of the shoelaces, the two hooks 222 can be pressed. After the hooks 222 are disengaged from the buckle groove 213, the second buckle 22 can be pulled out from the opening chamber 212, which makes unhooking convenient.

[0066] When the shoelace 10 of the present invention is threaded through the shoelace hole 211 of the first buckle 21, one of the movable ends 100 of the shoelace can be threaded into the opening chamber 212 through one shoelace hole 211 and out of the opening chamber 212 through the other shoelace hole 211, and the middle buckle 2 of the shoelace can be slid to the middle of the shoelace 10; or the shoelace can be folded in half first, and then the two movable ends of the shoelace can be threaded out of the opening side of the opening chamber into the two shoelace holes respectively, with the two movable ends of the shoelace located outside the middle buckle of the shoelace, and the middle buckle 2 of the shoelace can be slid to the middle of the shoelace 10.

[0067] The oral cavity 212 of the present invention is provided with two spring coils 214 at the opening. One side of the spring coil 214 is fixed to the side wall of the oral cavity 212, and the other side of the spring coil 214 is suspended inside the oral cavity 212. The second fastener 22 presses the spring coil 214 into the oral cavity 212 and its end abuts against the shoelace 10 against the bottom wall of the oral cavity 212. When the second fastener 22 is fastened in the first fastener 21, the suspended side of the spring coil 214 is pressed between the inner wall of the oral cavity 212 and the outer wall of the second fastener 22. The elastic restoring force of the spring coil 214 presses against the second fastener 22 and firmly fastens it into the oral cavity 212. The second fastener 22 is more firmly assembled in the first fastener 21.

[0068] The inner sides of the two elastic arms 221 of the present invention are respectively provided with a slot 2211, and a cross-shaped through slot is formed between the two elastic arms 221; the elasticity of the elastic arms 221 is better.

[0069] The oral cavity 212 of the present invention is gradually widened from the bottom wall of the oral cavity 212 toward the opening direction; this facilitates the insertion of the second fastener 22 into the oral cavity 212.

[0070] The second connecting part of the present invention is disposed on the first fastener 21 or the second fastener 22.

[0071] The hook portion 23 of the present invention is disposed on the second buckle 22 and located outside the opening chamber 212; the hook portion 23 has a horizontal portion 231 extending outward from the second buckle 22, a vertical plate 232 extending downward from the horizontal portion 231, and a protrusion 233 disposed on the vertical plate 232 to prevent the hook portion 23 from falling out of the buckle ring 13; when the hook portion 23 is hooked onto the buckle ring 13, the vertical plate 232 is inserted into the buckle ring 13, and the protrusion 233 prevents the vertical plate 232 from falling out of the buckle ring 13 without external force, the shoelace end buckle 1 and the shoelace middle buckle 2 are more firmly connected, and are easy to unfasten and separate, making them more convenient to use.

[0072] Please see Figures 1 to 16 The present invention also discloses a shoelace tying method using shoelace buckles, comprising the following steps:

[0073] S1. A shoelace buckle 2 is threaded through the middle of the shoelace 10, and a hook 23 is provided on the shoelace buckle 2.

[0074] S2, the two movable ends 100 of the shoelaces 10 interweave from top to bottom and wrap around the rope hole 200 on the shoe upper;

[0075] S3. After the two movable ends 100 of the shoelaces pass through the shoelace hole 200 at the bottom of the shoe upper, the movable ends 100 of the shoelaces are fixed to the shoelace end buckle 1, and the shoelace end buckle 1 is provided with a buckle 13.

[0076] S4. Adjust the tightness of the shoelaces 10 from bottom to top, and pull the shoelaces 10 out from the topmost eyelet 200 on the shoe surface;

[0077] S5. The hook 23 of the middle buckle 2 of the shoelace is hooked onto the loop 13 of the end buckle 1 of the shoelace. The shoelace 10 extending out of the uppermost shoelace hole 200 is pulled from the uppermost shoelace hole 200 to the lowermost shoelace hole 200 and then fixed to the shoe surface.

[0078] When using the shoelace buckle to tie shoelaces, the middle buckle 2 of this invention can be threaded onto the shoelace 10 first. Then, the two movable ends 100 of the shoelaces are interlaced from top to bottom and wrapped around the shoelace loop 200 on the shoe upper. After that, the movable ends 100 of the shoelaces are fixed to the shoelace end buckle 1. Then, the wearer adjusts the tightness of the shoelace 10 from bottom to top, pulls the shoelace 10 out from the uppermost shoelace loop 200, and tightens the shoelace at the uppermost shoelace loop 200 position. Finally, the hook of the middle buckle 2 is pulled to hook onto the loop of the shoelace end buckle 1. The middle buckle 2 can pull the shoelace 10 from the uppermost shoelace loop 200 position to the lowermost shoelace loop 200 position, fixing the shoelace 10 to the shoe upper. The shoelace tying method is simpler and more secure. Furthermore, the shoe upper is neater and safer; it avoids the safety hazard of the wearer stepping on the shoe laces 10 and falling due to the shoe laces 10 being scattered randomly on the shoe upper or the shoe laces 10 being loose; moreover, the shoe lace end buckle 1 and the shoe lace middle buckle 2 are located at the lower end and the upper end of the shoe upper lacing hole 200, respectively. The shoe laces 10 extending out of the shoe upper lacing hole 200 cross from the upper end to the lower end of the shoe upper lacing hole 200, so that the shoe laces 10 can be stretched as flat as possible and close to the shoe upper; moreover, the shoe lace movable end 100 is located at the lowermost shoe upper lacing hole 200 position. Since the shoe laces 10 at the lowermost shoe upper lacing hole 200 position are relatively fixed and will not be pulled, that is, the shoe lace movable end 100 will not be pulled when putting on or taking off the shoes, and can be more firmly fixed to the shoe lace end buckle 1.

[0079] The shoelace center buckle 2 of the present invention has a first buckle 21 and a second buckle 22. The first buckle 21 is provided with an open cavity 212 for engaging the second buckle 22 and two shoelace through holes 211 provided on the bottom wall of the open cavity 212. The second buckle 22 has two elastic arms 221 spaced apart, and hooks 222 are respectively provided on the outer side walls of the two elastic arms 221. The left and right side walls of the open cavity 212 are provided with buckle grooves 213 for the hooks 222 to engage. When the shoelace center buckle 2 is threaded onto the shoelace, firstly, the two... The movable ends 100 of the shoelaces pass through the two shoelace holes 211 of the first buckle 21, and the two elastic arms 221 of the second buckle 22 are inserted into the opening chamber 212. The two hooks 222 are respectively hooked into the buckle grooves 213. The end of the second buckle 22 abuts against the bottom wall of the opening chamber 212, which facilitates the assembly of the middle buckle 2 of the shoelaces onto the shoelaces 10. When unhooking the middle buckle 2 of the shoelaces, the two hooks 222 can be pressed. After the hooks 222 are disengaged from the buckle grooves 213, the second buckle 22 can be pulled out from the opening chamber 212, which makes unhooking convenient.

[0080] The shoelace end buckle 1 has an upper buckle body 11 and a lower buckle body 12. The upper buckle body 11 is provided with a first clamping groove 111 passing through the left and right ends of the upper buckle body 11 and hook grooves 112 located on the two inner side walls of the first clamping groove 111. The lower buckle body 12 is provided with a second clamping groove 121 and barbs 122 provided on the two outer side walls of the second clamping groove 121. The left and right ends of the lower buckle body 12 are provided with open through grooves 1 for the shoelace 10 to pass through. 23; When clamping the movable ends 100 of the shoelaces, first insert the two movable ends 100 of the shoelaces into the second clamping groove 121 through the two open through grooves 123 respectively, then cover the upper buckle body 11 onto the lower buckle body 12, and the two barbs 122 are respectively hooked into the two hook grooves 112. The second clamping groove 121 is fastened into the first clamping groove 111 to form the clamping part for clamping the movable ends 100 of the shoelaces. The two movable ends 100 of the shoelaces are clamped and fixed in the shoelace end buckle 1.

[0081] First, one movable end 100 of the shoelace passes through one shoelace hole 200 into the opening chamber 212 and exits through another shoelace hole 200 outside the opening chamber 212, and the middle buckle 2 of the shoelace is slid to the middle of the shoelace 10; then, the two elastic arms 221 of the second buckle 22 are inserted into the opening of the opening chamber 212, and the second buckle 22 presses the spring ring 214 into the opening chamber 212 and presses against the bottom wall of the opening chamber 212; then, the two movable ends 100 of the shoelace interweave and wrap around multiple shoe upper lacing holes 200 from top to bottom; next, the two movable ends 100 of the shoelace pass through the bottommost shoe upper lacing hole 20. After that, place the two movable ends 100 of the shoelaces into the second clamping groove 121 of the lower buckle body 12; then fasten the upper buckle body 11 onto the lower buckle body 12, and clamp and fix the movable ends 100 of the shoelaces in the clamping part; adjust the tightness of the shoelaces 10 from bottom to top, and pull the shoelaces 10 out from the uppermost shoe upper lace hole 200; finally, the middle buckle 2 of the shoelaces hooks onto the buckle ring 13 through the hook part 23 and connects it with the shoelace end buckle 1, fixing the shoelaces 10 to the shoe upper, making the shoe upper neater, safer, and more convenient for the user to operate; avoiding the safety hazard of the shoelaces 10 being scattered on the shoe upper or the shoelaces 10 being loose, which could cause the wearer to step on the shoelaces 10 and fall.

[0082] The oral cavity 212 of the present invention is provided with two spring coils 214 at the opening. One side of the spring coil 214 is fixed to the side wall of the oral cavity 212, and the other side of the spring coil 214 is suspended inside the oral cavity 212. The second fastener 22 presses the spring coil 214 into the oral cavity 212 and its end abuts against the bottom wall of the oral cavity 212 with the shoelace 10. The hook 23 is located outside the first fastener 21. When the second fastener 22 is fastened inside the first fastener 21, the suspended side of the spring coil 214 is pressed between the inner wall of the oral cavity 212 and the outer wall of the second fastener 22. The elastic restoring force of the spring coil 214 presses against the second fastener 22 and firmly fastens it into the oral cavity 212. The second fastener 22 is more firmly assembled into the first fastener 21.

[0083] The inner sides of the two elastic arms 221 of the present invention are respectively provided with a slot 2211, and a cross-shaped through slot is formed between the two elastic arms 221; the elasticity of the elastic arms 221 is better.

[0084] The oral cavity 212 of the present invention is gradually widened from the bottom wall of the oral cavity 212 toward the opening direction; this facilitates the insertion of the second fastener 22 into the oral cavity 212.

[0085] The second connecting part of the present invention is disposed on the first fastener 21 or the second fastener 22.

[0086] The hook portion 23 of the present invention is disposed on the second buckle 22 and located outside the opening chamber 212; the hook portion 23 has a horizontal portion 231 extending outward from the second buckle 22, a vertical plate 232 extending downward from the horizontal portion 231, and a protrusion 233 disposed on the vertical plate 232 to prevent the hook portion 23 from falling out of the buckle ring 13; when the hook portion 23 is hooked onto the buckle ring 13, the vertical plate 232 is inserted into the buckle ring 13, and the protrusion 233 prevents the vertical plate 232 from falling out of the buckle ring 13 without external force, the shoelace end buckle 1 and the shoelace middle buckle 2 are more firmly connected, and are easy to unfasten and separate, making them more convenient to use.

[0087] The bottom wall of the first clamping groove 111 of the present invention is provided with a plurality of first pointed protrusions 1111; the bottom wall of the second clamping groove 121 is provided with a plurality of second pointed protrusions 1211; when the upper buckle 11 covers the lower buckle 12, the first pointed protrusions 1111 and the second pointed protrusions 1211 are staggered; when the upper buckle 11 and the lower buckle 12 are fastened, the tips of the first pointed protrusions 1111 and the second pointed protrusions 1211 can press tightly against each other on the movable end 100 of the shoelace, so as to clamp the movable end 100 of the shoelace more firmly on the clamping part and prevent the movable end 100 of the shoelace from coming off the shoelace end buckle 1.

[0088] The bottom wall of the first clamping groove 111 of the present invention is provided with two rows of first pointed protrusions 1111, with three first pointed protrusions 1111 in each row; the bottom wall of the second clamping groove 121 is provided with two rows of second pointed protrusions 1211, with three second pointed protrusions 1211 in each row; the bottom wall of the first clamping groove 111 is also provided with two small pointed protrusions 1112, which are located in the middle of one row of first pointed protrusions. On both sides of 1111, the first pointed protrusion 1111 protrudes at a greater height than the small pointed protrusion 1112; and the two small pointed protrusions 1112 and the two second pointed protrusions 1211 located in the middle are arranged vertically opposite each other; the small pointed protrusions 1112 and the second pointed protrusions 1211 cooperate to press tightly against the movable end 100 of the shoelace, clamping the movable end 100 of the shoelace more firmly on the clamping part, preventing the movable end 100 of the shoelace from coming off the shoelace end buckle 1.

[0089] The lower buckle body 12 of the present invention is provided with two partitions 124 symmetrically spaced at the middle position of the second clamping groove 121. The space between the two partitions 124 is a receiving groove 125 for the movable end of the shoelace. Each partition 124 is provided with an opening 1241 for the movable end of the shoelace 100 to pass through the second clamping groove 121 into the receiving groove 125. Two arc-shaped top fasteners 1242 are provided in the receiving groove 125 to press the two movable ends of the shoelace 100 tightly. When the movable end of the shoelace 100 passes through the opening 1241 from the second clamping groove 121 into the receiving groove 125, and is pressed on the movable end of the shoelace 100 by the arc-shaped top fasteners 1242, the movable end of the shoelace 100 can be firmly fixed in the receiving groove 125, further reinforcing and fixing the movable end of the shoelace 100 and preventing the movable end of the shoelace 100 from coming off the shoelace end buckle 1.

[0090] The arc-shaped top stop 1242 of the present invention is positioned opposite to and spaced apart from the opening 1241. The height of the arc-shaped top stop 1242 is less than the height of the partition 124. The first pointed protrusion 1111, the second pointed protrusion 1211 and the arc-shaped top stop 1242 can double-press the movable end 100 of the shoelace, making the movable end 100 of the shoelace more firmly fixed to the shoelace end buckle 1. Furthermore, the arc-shaped top side of the arc-shaped top stop 1242 will not damage the movable end 100 of the shoelace when pressing it.

[0091] A plug post 126 is provided at the middle position of the receiving groove 125 of the present invention, and the upper buckle body 11 is provided with a plug groove 114 for the plug post 126 to be inserted; the plug-in mating structure of the plug post 126 and the plug groove 114 can make the upper buckle body 11 and the lower buckle body 12 more securely fastened, thereby making the movable end 100 of the shoelace more securely fixed to the shoelace end buckle 1.

[0092] The two outer side walls of the lower buckle body 12 of the present invention are provided with push grooves 1221 opposite to the barbs 122. The push grooves 1221 are vertically connected to the barbs 122. When the shoelace end buckle 1 is unbuckled, a rod is inserted into each push groove 1221. The push rod pushes the barbs 122 out of the hook groove 112, and the upper buckle body 11 and the lower buckle body 12 are unbuckled, which is convenient for unbuckled. The two outer side walls of the lower buckle body 12 are respectively provided with two barbs 122 and two push grooves 1221. At the same time, four barbs 122 are pushed to facilitate unbuckled.

[0093] In this invention, after the middle buckle 2 is threaded onto the shoelace 10 and before the shoelace 10 is threaded around the shoe upper through the rope hole 200, a tension adjustment buckle 3 is also threaded onto the shoelace 10; the tension adjustment buckle 3 is used to tighten the shoelace 10 at the uppermost shoe upper through the rope hole 200 position, making it convenient to tighten the shoelace 10.

[0094] The above embodiments and accompanying drawings are not intended to limit the product form and style of the present invention. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of the present invention.

Claims

1. A shoelace buckle, characterized in that: The shoelace includes a shoelace end buckle that secures the two movable ends of the shoelaces and a shoelace middle buckle that passes through the middle of the shoelaces. The shoelace end buckle has a clamping part that movably clamps the two movable ends of the shoelaces. The shoelace middle buckle has a shoelace hole for the shoelaces to pass through. The shoelace end buckle has a first connecting part, and the shoelace middle buckle has a second connecting part that is movably connected to the first connecting part. The first connecting part is a buckle ring on the shoelace end buckle, and the second connecting part is a hook on the shoelace middle buckle that hooks onto the buckle ring. The shoelace end buckle has an upper buckle body and a lower buckle body, and the upper buckle body has a through-hole. The buckle body has a first clamping groove at both ends and a hook groove on the two inner sidewalls of the first clamping groove. The lower buckle body is provided with a second clamping groove and barbs on the two outer sidewalls of the second clamping groove. The left and right ends of the lower buckle body are provided with open through grooves for shoelaces to pass through. When clamping the movable ends of the shoelaces, the two movable ends of the shoelaces are first inserted into the second clamping grooves through the two open through grooves respectively. Then, the upper buckle body is covered on the lower buckle body, and the two barbs are respectively hooked into the two hook grooves. The second clamping groove is fastened into the first clamping groove to form a clamping part for clamping the movable ends of the shoelaces. The two movable ends of the shoelaces are clamped and fixed in the shoelace end buckle.

2. The shoelace buckle as described in claim 1, characterized in that: The bottom wall of the first clamping groove is provided with a plurality of first pointed protrusions, and the bottom wall of the second clamping groove is provided with a plurality of second pointed protrusions; when the upper buckle body is closed to the lower buckle body, the first pointed protrusions and the second pointed protrusions are staggered.

3. The shoelace buckle as described in claim 2, characterized in that: The bottom wall of the first clamping groove is provided with two rows of first pointed protrusions, with three first pointed protrusions in each row; the bottom wall of the second clamping groove is provided with two rows of second pointed protrusions, with three second pointed protrusions in each row; the bottom wall of the first clamping groove is also provided with two small pointed protrusions, which are located on both sides of the first pointed protrusions in the middle of one row, and the two small pointed protrusions and the two second pointed protrusions in the middle are arranged vertically opposite each other.

4. The shoelace buckle as described in claim 1, characterized in that: The lower buckle body is symmetrically spaced with two partitions at the middle position of the second clamping groove. The space between the two partitions is a receiving groove for the movable end of the shoelace. Each partition is provided with an opening for the movable end of the shoelace to pass through the second clamping groove into the receiving groove. Two arc-shaped top stops are provided in the receiving groove to press the movable ends of the two shoelaces tightly.

5. A shoelace buckle as described in claim 4, characterized in that: A plug is provided at the middle position of the receiving groove, and the upper buckle is provided with a plug groove for the plug to be inserted.

6. The shoelace buckle as described in claim 1, characterized in that: The shoelace center buckle has a first buckle and a second buckle. The first buckle has an open cavity for locking the second buckle and two shoelace holes on the bottom wall of the open cavity. The movable end of one shoelace passes through one shoelace hole into the open cavity and exits through the other shoelace hole, thus sliding the shoelace center buckle to the middle of the shoelace. The second buckle has two elastic arms spaced apart, and hooks are respectively provided on the outer side walls of the two elastic arms. The left and right side walls of the open cavity are provided with buckle grooves for the hooks to engage.

7. A shoelace buckle as described in claim 6, characterized in that: The oral cavity has two spring rings at the opening. One side of the spring ring is fixed to the side wall of the oral cavity, and the other side of the spring ring is suspended inside the oral cavity. The second fastener presses the spring ring into the oral cavity and its end is pressed against the shoelace against the bottom wall of the oral cavity.

8. A method of tying shoelaces using a shoelace buckle as described in any one of claims 1-7, characterized in that, It has the following steps: S1. A middle buckle is threaded through the middle of the shoelace, and a hook is provided on the middle buckle. S2. The two movable ends of the shoelaces are interwoven from top to bottom and wrapped around the shoe upper eyelet; S3. After the two movable ends of the shoelaces pass through the shoelace holes at the bottom of the shoe upper, the movable ends of the shoelaces are fixed to the shoelace end buckle, and the shoelace end buckle is provided with a buckle ring. S4. Adjust the tightness of the shoelaces from bottom to top, and pull the shoelaces out from the top eyelet on the shoe. S5. The hook of the middle buckle of the shoelace is hooked onto the loop of the shoelace end buckle. The shoelace that extends out of the uppermost shoelace hole is pulled from the uppermost shoelace hole to the lowermost shoelace hole and then fixed to the shoe surface.

9. A shoelace tying method using shoelace buckles as described in claim 8, characterized in that: The shoelace buckle has a first buckle and a second buckle. The first buckle has an open cavity for locking the second buckle and two shoelace holes on the bottom wall of the open cavity. The second buckle has two elastic arms spaced apart, and hooks are provided on the outer side walls of the two elastic arms respectively. The left and right side walls of the open cavity are provided with buckle grooves for the hooks to engage. The shoelace end buckle has an upper buckle body and a lower buckle body. The upper buckle body is provided with a first clamping groove passing through the left and right ends of the upper buckle body and hook grooves located on the two inner side walls of the first clamping groove. The lower buckle body is provided with a second clamping groove and barbs located on the two outer side walls of the second clamping groove. The left and right ends of the lower buckle body are provided with open through grooves for the shoelace to pass through. When clamping the movable ends of the shoelace, the two movable ends of the shoelace are first inserted into the second clamping groove through the two open through grooves respectively. Then, the upper buckle body is closed on the lower buckle body. The two barbs are respectively hooked into the two hook grooves. The second clamping groove is closed into the first clamping groove to form a clamping part for clamping the movable ends of the shoelace. The two movable ends of the shoelace are clamped and fixed in the shoelace end buckle.

10. A shoelace tying method using shoelace buckles as described in claim 9, characterized in that: The oral cavity has two spring rings at the opening. One side of the spring ring is fixed to the side wall of the oral cavity, and the other side of the spring ring is suspended inside the oral cavity. The second fastener presses the spring ring into the oral cavity and abuts against the bottom wall of the oral cavity, and the hook is located outside the first fastener.

11. The shoelace tying method using shoelace buckles as described in claim 9, characterized in that: The bottom wall of the first clamping groove is provided with a plurality of first pointed protrusions, and the bottom wall of the second clamping groove is provided with a plurality of second pointed protrusions; when the upper buckle body is closed to the lower buckle body, the first pointed protrusions and the second pointed protrusions are staggered.

12. The shoelace tying method using shoelace buckles as described in claim 11, characterized in that: The bottom wall of the first clamping groove is provided with two rows of first pointed protrusions, with three first pointed protrusions in each row; the bottom wall of the second clamping groove is provided with two rows of second pointed protrusions, with three second pointed protrusions in each row; the bottom wall of the first clamping groove is also provided with two small pointed protrusions, which are located on both sides of the first pointed protrusions in the middle of one row, and the two small pointed protrusions and the two second pointed protrusions in the middle are arranged vertically opposite each other.

13. The shoelace tying method using shoelace buckles as described in claim 9, characterized in that: The lower buckle body has two partitions symmetrically spaced at the middle position of the second clamping groove. The space between the two partitions is a receiving groove for the movable end of the shoelace. Each partition has an opening for the movable end of the shoelace to pass through the second clamping groove into the receiving groove. Two arc-shaped top stops are provided in the receiving groove to press against the movable ends of the two shoelaces. The arc-shaped top stops are directly opposite the openings and spaced apart from the openings. The height of the arc-shaped top stops is less than the height of the partitions.

14. The shoelace tying method using shoelace buckles as described in claim 13, characterized in that: A plug is provided at the middle position of the receiving groove, and the upper buckle is provided with a plug groove for the plug to be inserted.

15. A shoelace tying method using shoelace buckles as described in claim 8, characterized in that: After the middle buckle is threaded onto the shoelaces and before the shoelaces are threaded through the eyelet on the shoe upper, an adjustment buckle is also threaded onto the shoelaces.