Shoelace buckle

Abstract

The utility model relates to a shoelace buckle which comprises a face shell, a bottom plate and a clamping and pressing transmission assembly. An adjusting screw hole, a left hole group and a right hole group are formed in the surface shell; each of the left hole group and the right hole group comprises a first through hole and a second through hole; the bottom plate and the surface shell are assembled to form a sliding cavity; a left through hole and a right through hole are formed in the bottom plate; the left through hole and the right through hole are communicated with the sliding cavity and the outside; the clamping and pressing transmission assembly comprises a left clamping and pressing block, a right clamping and pressing block and a pushing piece. The pushing piece comprises a stud and a pushing head; the stud is connected with the pushing head and is in threaded connection with the adjusting screw hole, and a knob part is arranged at the top end of the stud; the pushing head is located in the sliding cavity; the left clamping and pressing block and the right clamping and pressing block are installed in the sliding cavity in a left-right sliding mode, and pushed faces matched with the pushing head are arranged on the right side face of the left clamping and pressing block and the left side face of the right clamping and pressing block respectively. The shoelace fixing device has the advantages of being simple in structure, reasonable in design, low in production cost, convenient to use, good in shoelace fixing stability and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of shoes, especially a shoelace buckle. BACKGROUND

[0002] The existing shoes are generally worn with shoelaces, and the user adjusts the tightness of the shoes by adjusting the shoelaces. After adjusting the tightness of the shoes, the user knots and fixes the two ends of the shoelaces, and the knot is generally a bowknot. The shoelaces are fixed by knotting, and the knot formed by the shoelaces is easy to loosen after walking for a period of time, so that the user needs to knot and fix the shoelaces again, which is very inconvenient to use and time-consuming and laborious.

[0003] In order to solve the problem of shoelace knotting and fixing, some shoes of the present time are provided with a shoelace device. The existing shoelace device is generally as described in the technical solution of patent application No. 2022213414147, entitled "A shoelace device for adjusting the tightness of shoelaces". When the adjusting buckle is moved upward, the upward movement of the connecting piece is driven, so that the first bevel gear on the outer side of the connecting piece is separated from the connecting sleeve, and the first meshing gear at the lower part of the connecting piece is separated from the second meshing gear on the rope winding device. The adjusting buckle can drive the connecting piece to rotate bidirectionally, and the shoelaces can be loosened at this time. After the adjusting buckle is moved downward, the downward movement of the connecting piece is driven. At this time, the first bevel gear on the outer side of the connecting piece cooperates with the connecting sleeve, and the first meshing gear at the lower part of the connecting piece cooperates with the second meshing gear on the rope winding device. The rotating buckle can only rotate in the direction of tightening the rope of the rope winding device, and the shoelaces can be tightened. The structure of such a shoelace device is very complex, the production cost is high, and it is not convenient to operate. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a shoelace buckle, which has the advantages of simple structure, reasonable design, low production cost, convenient use, good stability of shoelace fixing, etc.

[0005] The technical solution of the utility model is as follows: a shoelace buckle, in particular, comprises a face shell, a bottom plate and a clamping and pressing transmission assembly; wherein:

[0006] The shell opening of the face shell is arranged downward, and an adjusting screw hole, a left hole group and a right hole group are formed on the top surface of the face shell. The adjusting screw hole is at the center of the top surface of the face shell, and the adjusting screw hole is in communication with the shell cavity of the face shell. The left hole group and the right hole group are symmetrically arranged on the left and right sides of the adjusting screw hole. The left hole group and the right hole group each comprise a first through hole and a second through hole in communication with the shell cavity of the face shell.

[0007] The bottom plate is fixed on the opening of the shell of the face shell, and the top surface of the bottom plate is assembled with the shell cavity of the face shell to form a sliding cavity; the length direction of the sliding cavity is arranged in the left and right direction; a left through hole and a right through hole are formed on the bottom plate; the left through hole and the right through hole are symmetrically arranged at the left and right ends of the bottom plate, and both the left through hole and the right through hole are connected to the sliding cavity and the outside.

[0008] The clamping transmission assembly includes a left clamping block, a right clamping block, and a pushing component. The pushing component includes a stud and a pushing head. The bottom end of the stud is connected to the top surface of the pushing head, and the stud is threadedly connected to the adjusting screw hole. The top end of the stud is outside the sliding cavity, and a knob is provided at the top end of the stud. The pushing head is located inside the sliding cavity and is an inverted frustum. The left and right clamping blocks are slidably installed in the sliding cavity, and are symmetrically arranged on the left and right sides of the pushing head. The right side of the left clamping block and the left side of the right clamping block each have a pushed surface adapted to the pushing head. When the stud rotates relative to the adjusting screw hole, causing the pushing head to move downward, the pushing head can push the left and right clamping blocks to move in opposite directions, so that when in use, the left side of the left clamping block engages with the left cavity wall of the sliding cavity, and the right side of the right clamping block engages with the right cavity wall of the sliding cavity to clamp the shoelaces.

[0009] In this design, the left end of the shoelace first passes through the left through hole and the space between the left clamping block and the left cavity wall of the sliding cavity, then exits through the first through hole of the left hole group. Next, it passes through the second through hole of the left hole group into the space between the left clamping block and the left cavity wall of the sliding cavity, then exits through the left through hole, thus forming a left wing with the left end of the shoelace. Similarly, the right end of the shoelace first passes through the right through hole and the space between the right clamping block and the right cavity wall of the sliding cavity, then exits through the first through hole of the right hole group. Next, it passes through the second through hole of the right hole group into the space between the right clamping block and the right cavity wall of the sliding cavity, then exits through the right through hole, thus forming a right wing with the right end of the shoelace. When tightening the shoelace, simultaneously twist the left side formed by the shoelace. Pulling the end of the wing near the first through hole of the left hole group and the end of the right wing near the first through hole of the right hole group upwards and pushing downwards tightens the shoelaces. Finally, rotating the knob of the pusher causes the stud to rotate relative to the adjusting screw hole, causing the pusher head to move downwards. This pusher head then pushes the left and right clamping blocks to move in opposite directions, so that the left side of the left clamping block engages with the left cavity wall of the sliding cavity, and the right side of the right clamping block engages with the right cavity wall of the sliding cavity, respectively clamping the left and right ends of the shoelaces and fixing them in place. When it is necessary to loosen the shoelaces, simply rotate the knob to move the pusher upwards. This shoelace buckle structure is very simple, has low production costs, is easy to use, and provides good stability for fixing the shoelaces.

[0010] Furthermore, a left inclined surface is formed at the left end of the top surface of the shell; the first through hole of the left hole group is located to the right side of the left inclined surface, and the second through hole of the left hole group is inclined to connect the left inclined surface and the left cavity wall of the sliding cavity; a right inclined surface is formed at the right end of the top surface of the shell; the first through hole of the right hole group is located to the left side of the right inclined surface, and the second through hole of the right hole group is inclined to connect the right inclined surface and the right cavity wall of the sliding cavity.

[0011] Furthermore, the first through hole and the second through hole of each of the left and right hole groups are staggered; the first through hole of the left hole group is located to the right front of its own second through hole; the first through hole of the right hole group is located to the left front of its own second through hole.

[0012] Furthermore, the left side of the left clamping block and the right side of the right clamping block each have a front rough area and a rear smooth area. The front rough area of ​​each of the left and right clamping blocks has tooth textures protruding from the surface. The length direction of the tooth textures in the front rough area of ​​each of the left and right clamping blocks is arranged along the front-back direction.

[0013] Furthermore, both the left and right through holes are elongated holes arranged along the front-to-back direction in terms of length.

[0014] Furthermore, the pushed surfaces of both the left and right clamping blocks are curved surfaces; when the right side of the left clamping block is in contact with the left side of the right clamping block, the pushed surfaces of the left and right clamping blocks are joined to form an inverted frustum-shaped hole, which encloses the circumferential surface of the push head.

[0015] Furthermore, the pusher also includes a guide post; the guide post has a circular cross-section, and the top end of the guide post is connected to the bottom surface of the pusher head; a guide groove is formed on the top surface of the base plate, the guide groove has a circular cross-section, and the bottom end of the guide post is inserted into the guide groove.

[0016] Furthermore, the clamping transmission assembly also includes a front reset elastic element and a rear reset elastic element; each of the front and rear reset elastic elements includes an elastic strip and two locking blocks, which are connected by the elastic strip; the left and right clamping blocks each have a front locking groove and a rear locking groove; the front and rear locking grooves of the left clamping block are respectively connected to its top surface and right side surface, and the front and rear locking grooves of the right clamping block are respectively connected to its top surface and left side surface, and the left and right clamping blocks are respectively pushed... The face is located between its front and rear clamping slots; the front clamping slots of the left clamping block and the right clamping block are directly opposite each other, and the rear clamping slots of the left clamping block and the right clamping block are directly opposite each other; one of the clamping blocks of the front reset elastic member is embedded in the front clamping slot of the left clamping block, and the other clamping block of the front reset elastic member is embedded in the front clamping slot of the right clamping block; one of the clamping blocks of the rear reset elastic member is embedded in the rear clamping slot of the left clamping block, and the other clamping block of the rear reset elastic member is embedded in the rear clamping slot of the right clamping block.

[0017] The advantages of this utility model are: simple structure, reasonable design, low production cost, convenient use and good stability in fixing shoelaces. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of an embodiment.

[0019] Figure 2 This is a top view of the structure of an embodiment.

[0020] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure along the AA direction.

[0021] Figure 4 This is a schematic diagram of the disassembly and assembly structure for an embodiment.

[0022] Figure 5 This is a schematic diagram of the structure after the shoelaces are put on during the application of the example.

[0023] Explanation of reference numerals in the attached drawings: 1-face shell; 11-adjusting screw hole; 12-left hole group; 13-right hole group; 14-first through hole; 15-second through hole; 16-left inclined surface; 17-right inclined surface; 2-base plate; 21-left through hole; 22-right through hole; 23-guide groove; 3-clamping transmission assembly; 4-left clamping block; 5-right clamping block; 51-push surface; 52-front rough area; 53-rear smooth area; 54-front locking groove; 55-rear locking groove; 6-push component; 61-stud; 62-push head; 63-knob part; 64-guide post; 7-front reset elastic component; 8-rear reset elastic component; 81-elastic strip; 82-clamping block; 9-sliding cavity; 10-left wing; 20-right wing. Detailed Implementation

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a shoelace buckle of this embodiment includes a faceplate 1, a base plate 2, and a clamping transmission assembly 3; wherein:

[0025] The shell opening of the faceplate 1 is facing downwards, and an adjustment screw hole 11, a left hole group 12, and a right hole group 13 are formed on the top surface of the faceplate 1. The adjustment screw hole 11 is located at the center of the top surface of the faceplate 1 and communicates with the shell cavity of the faceplate 1. The left hole group 12 and the right hole group 13 are symmetrically arranged on the left and right sides of the adjustment screw hole 11. The left hole group 12 and the right hole group 13 each include a first through hole 14 and a second through hole 15 that communicate with the shell cavity of the faceplate 1.

[0026] The base plate 2 is fixed on the opening of the shell 1, and the top surface of the base plate 2 is assembled with the shell cavity of the shell 1 to form a sliding cavity 9; the sliding cavity 9 is arranged along the left and right direction in the length direction; a left through hole 21 and a right through hole 22 are formed on the base plate 2; the left through hole 21 and the right through hole 22 are symmetrically arranged at the left and right ends of the base plate 2, and both the left through hole 21 and the right through hole 22 are connected to the sliding cavity 9 and the outside.

[0027] The clamping transmission assembly 3 includes a left clamping block 4, a right clamping block 5, and a pushing component 6; the pushing component 6 includes a stud 61 and a pushing head 62; the bottom end of the stud 61 is connected to the top surface of the pushing head 62, the stud 61 is threadedly connected to the adjusting screw hole 11, the top end of the stud 61 is outside the sliding cavity 9, and a knob part 63 is provided at the top end of the stud 61; the stud 61 of the pushing component 6 is integrally formed with the pushing head 62, while the stud 61 and the knob part 63 are separately formed and then fixedly connected; the pushing head 62 is located inside the sliding cavity 9, and the pushing head 62 is an inverted frustum, the outer contour radius of the top surface of the pushing head 62 is larger than the hole radius of the adjusting screw hole 11, so as to avoid the stud 61 being relative to the adjusting screw hole 11. When the push head 62 moves upward due to rotation, the entire pusher 6 disengages from the sliding cavity 9. The left clamping block 4 and the right clamping block 5 are slidably installed in the sliding cavity 9. The left clamping block 4 and the right clamping block 5 are symmetrically arranged on the left and right sides of the push head 62. The right side of the left clamping block 4 and the left side of the right clamping block 5 are each provided with a push surface 51 that is adapted to the push head 62. When the stud 61 rotates relative to the adjusting screw hole 11 and the push head 62 moves downward, the push head 62 can push the left clamping block 4 and the right clamping block 5 to move in opposite directions. As a result, when in use, the left side of the left clamping block 4 engages with the left cavity wall of the sliding cavity 9, and the right side of the right clamping block 5 engages with the right cavity wall of the sliding cavity 9 to clamp the shoelaces.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, when this shoelace buckle is used, the left end of the shoelace first passes through the left through hole 21 and the space between the left clamping block 4 and the left cavity wall of the sliding cavity 9, and then exits through the first through hole 14 of the left hole group 12. Then, it passes through the second through hole 15 of the left hole group 12 into the space between the left clamping block 4 and the left cavity wall of the sliding cavity 9, and then exits through the left through hole 21, so that the left end of the shoelace is wrapped to form a left wing 10. Similarly, the right end of the shoelace first passes through the right through hole 22 and the space between the right clamping block 5 and the right cavity wall of the sliding cavity 9, and then exits through the first through hole 14 of the right hole group 13. Then, it passes through the second through hole 15 of the right hole group 13 into the space between the right clamping block 5 and the right cavity wall of the sliding cavity 9, and then exits through the right through hole 22, so that the right end of the shoelace is wrapped to form a right wing 20. When it is necessary to tighten the shoelace, the shoelace is simultaneously twisted to form a right wing 20. Pulling the left wing 10 near the first through hole 14 of the left hole group 12 and the right wing 20 near the first through hole 14 of the right hole group 13 upwards and pushing the shoelace buckle downwards tightens the shoelace. Finally, rotating the knob 63 of the pusher 6 causes the stud 61 to rotate relative to the adjusting screw hole 11, which causes the pusher head 62 to move downwards. This causes the pusher head 62 to push the left clamping block 4 and the right clamping block 5 to move in opposite directions, so that the left side of the left clamping block 4 engages with the left cavity wall of the sliding cavity 9, and the right side of the right clamping block 5 engages with the right cavity wall of the sliding cavity 9 to clamp the left and right ends of the shoelace respectively, thus fixing the shoelace. When it is necessary to loosen the shoelace, simply rotate the knob 63 to move the pusher 6 upwards. This shoelace buckle structure is very simple, has low production cost, is easy to use, and has good stability in fixing the shoelace.

[0029] To make it easier for the shoelaces to pass through the second through hole 15 of the left hole group 12 and the second through hole 15 of the right hole group 13 into the sliding cavity 9 when using this shoelace buckle, and to make the left wing 10 and right wing 20 formed by the shoelaces more aesthetically pleasing when applied, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a left inclined surface 16 is formed at the left end of the top surface of the shell 1; the first through hole 14 of the left hole group 12 is located to the right of the left inclined surface 16, and the second through hole 15 of the left hole group 12 is inclined to connect the left inclined surface 16 and the left cavity wall of the sliding cavity 9; a right inclined surface 17 is formed at the right end of the top surface of the shell 1; the first through hole 14 of the right hole group 13 is located to the left of the right inclined surface 17, and the second through hole 15 of the right hole group 13 is inclined to connect the right inclined surface 17 and the right cavity wall of the sliding cavity 9.

[0030] To prevent the two shoelace segments between the left clamping block 4 and the left cavity wall of the sliding cavity 9, and between the right clamping block 5 and the right cavity wall of the sliding cavity 9, from overlapping during application, and to improve the clamping effect of the shoelace buckle, such as... Figure 1 , Figure 2 , Figure 4As shown, the first through hole 14 and the second through hole 15 of the left hole group 12 and the right hole group 13 are staggered; the first through hole 14 of the left hole group 12 is located to the right front of its own second through hole 15; the first through hole 14 of the right hole group 13 is located to the left front of its own second through hole 15.

[0031] To make this shoelace buckle clamp the shoelaces more tightly when used, such as Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the left side of the left clamping block 4 and the right side of the right clamping block 5 each have a front rough area 52 and a rear smooth area 53. The front rough areas 52 of both the left and right clamping blocks 4 and 5 have protruding tooth-like textures. The length direction of these tooth-like textures in the front rough areas 52 of both the left and right clamping blocks 4 and 5 is along the front-to-back direction. In application, this structure allows the front rough area 52 of the left clamping block 4 to engage with the left cavity wall of the sliding cavity 9 to clamp and fix the portion of the shoelace between the first through hole 14 and the left through hole 21 of the left hole group 12. Similarly, the front rough area 52 of the right clamping block 5 to engage with the right cavity wall of the sliding cavity 9 to clamp and fix the portion of the shoelace between the first through hole 14 and the right through hole 22 of the right hole group 13. This ensures that the tightness of the shoe is maintained after adjustment. During application, the smooth rear area 53 of the left clamping block 4 cooperates with the left cavity wall of the sliding cavity 9 to clamp the part of the shoelace between the second through hole 15 and the left through hole 21 of the left hole group 12, and the smooth rear area 53 of the right clamping block 5 cooperates with the right cavity wall of the sliding cavity 9 to clamp the part of the shoelace between the second through hole 15 and the right through hole 22 of the right hole group 13. Thus, if it is found that the length of the shoelace extending from the left through hole 21 after passing through the second through hole 15 of the left hole group 12 is too long, the end of the left wing 10 near the second through hole 15 of the left hole group 12 can be forcefully pulled up to... The left wing 10 becomes larger, thereby shortening the length of the shoelace after passing through the second through hole 15 of the left eyelet group 12 and exiting through the left through hole 21, thus preventing the left end of the shoelace from rubbing against the ground and getting damaged. Similarly, if it is found that the length of the shoelace after passing through the second through hole 15 of the right eyelet group 13 and exiting through the right through hole 22 is too long, the end of the right wing 20 near the second through hole 15 of the right eyelet group 13 can be pulled up forcefully, making the right wing 20 larger, thereby shortening the length of the shoelace after passing through the second through hole 15 of the right eyelet group 13 and exiting through the right through hole 22, thus preventing the right end of the shoelace from rubbing against the ground and getting damaged.

[0032] To make the structure of this shoelace buckle more reasonable, such as Figure 2 , Figure 3 , Figure 4 As shown, both the left through hole 21 and the right through hole 22 are elongated holes arranged along the front-back direction in the length direction.

[0033] To make the structure of this shoelace buckle more reasonable, such as Figure 2 , Figure 3, Figure 4 As shown, the pushed surfaces 51 of the left clamping block 4 and the right clamping block 5 are both curved surfaces; when the right side of the left clamping block 4 is in contact with the left side of the right clamping block 5, the pushed surfaces 51 of the left clamping block 4 and the right clamping block 5 are joined to form an inverted frustum-shaped hole, which is set to cover the circumferential surface of the push head 62.

[0034] To improve the structural strength of this shoelace buckle, such as Figure 2 , Figure 3 , Figure 4 As shown, the pusher 6 also includes a guide post 64; the guide post 64 has a circular cross-section, and the top end of the guide post 64 is connected to the bottom surface of the pusher head 62; a guide groove 23 is formed on the top surface of the base plate 2, the guide groove 23 has a circular cross-section, and the bottom end of the guide post 64 is inserted into the guide groove 23.

[0035] In order to allow the left clamping block 4 and the right clamping block 5 to move in opposite directions and quickly release the clamping of the shoelace when the stud 61 rotates relative to the adjusting screw hole 11 and the pushing head 62 moves upward, such as during application, Figure 4 As shown, the clamping transmission assembly 3 also includes a front reset elastic element 7 and a rear reset elastic element 8; each of the front reset elastic element 7 and the rear reset elastic element 8 includes an elastic strip 81 and two locking blocks 82, which are connected by the elastic strip 81; the left clamping block 4 and the right clamping block 5 each have a front locking groove 54 and a rear locking groove 55; the front locking groove 54 and the rear locking groove 55 of the left clamping block 4 are respectively connected to its top surface and right side surface, and the front locking groove 54 and the rear locking groove 55 of the right clamping block 5 are respectively connected to its top surface and left side surface, and the pushed surface 51 of each of the left clamping block 4 and the right clamping block 5 is in a self- Between the front locking groove 54 and the rear locking groove 55 of the body; the front locking groove 54 of the left clamping block 4 is directly opposite to the front locking groove 54 of the right clamping block 5, and the rear locking groove 55 of the left clamping block 4 is directly opposite to the rear locking groove 55 of the right clamping block 5; one of the locking blocks 82 of the front reset elastic member 7 is embedded in the front locking groove 54 of the left clamping block 4, and the other locking block 82 of the front reset elastic member 7 is embedded in the front locking groove 54 of the right clamping block 5; one of the locking blocks 82 of the rear reset elastic member 8 is embedded in the rear locking groove 55 of the left clamping block 4, and the other locking block 82 of the rear reset elastic member 8 is embedded in the rear locking groove 55 of the right clamping block 5.

Claims

1. A shoelace buckle, characterized in that: Includes a faceplate, a base plate, and a clamping transmission assembly; wherein: The shell opening is set downwards, and an adjustment screw hole, a left hole group, and a right hole group are formed on the top surface of the shell; the adjustment screw hole is located at the center of the top surface of the shell and communicates with the shell cavity of the shell; the left hole group and the right hole group are symmetrically arranged on the left and right sides of the adjustment screw hole, and each of the left hole group and the right hole group includes a first through hole and a second through hole communicating with the shell cavity of the shell; The bottom plate is fixed on the opening of the shell of the face shell, and the top surface of the bottom plate is assembled with the shell cavity of the face shell to form a sliding cavity; the length direction of the sliding cavity is arranged in the left and right direction; a left through hole and a right through hole are formed on the bottom plate; the left through hole and the right through hole are symmetrically arranged at the left and right ends of the bottom plate, and both the left through hole and the right through hole are connected to the sliding cavity and the outside. The clamping transmission assembly includes a left clamping block, a right clamping block, and a pushing component. The pushing component includes a stud and a pushing head. The bottom end of the stud is connected to the top surface of the pushing head, and the stud is threadedly connected to the adjusting screw hole. The top end of the stud is outside the sliding cavity, and a knob is provided at the top end of the stud. The pushing head is located inside the sliding cavity and is an inverted frustum. The left and right clamping blocks are slidably installed in the sliding cavity, and are symmetrically arranged on the left and right sides of the pushing head. The right side of the left clamping block and the left side of the right clamping block each have a pushed surface adapted to the pushing head. When the stud rotates relative to the adjusting screw hole, causing the pushing head to move downward, the pushing head can push the left and right clamping blocks to move in opposite directions, so that when in use, the left side of the left clamping block engages with the left cavity wall of the sliding cavity, and the right side of the right clamping block engages with the right cavity wall of the sliding cavity to clamp the shoelaces.

2. A shoelace buckle according to claim 1, characterized in that: A left inclined surface is formed at the left end of the top surface of the shell; the first through hole of the left hole group is located to the right side of the left inclined surface, and the second through hole of the left hole group is inclined to connect the left inclined surface and the left cavity wall of the sliding cavity; a right inclined surface is formed at the right end of the top surface of the shell; the first through hole of the right hole group is located to the left side of the right inclined surface, and the second through hole of the right hole group is inclined to connect the right inclined surface and the right cavity wall of the sliding cavity.

3. A shoelace buckle according to claim 1 or 2, characterized in that: The first and second through holes of the left and right hole groups are staggered; the first through hole of the left hole group is located to the right front of its own second through hole; the first through hole of the right hole group is located to the left front of its own second through hole.

4. A shoelace buckle according to claim 3, characterized in that: The left side of the left clamping block and the right side of the right clamping block each have a front rough area and a rear smooth area. The front rough area of ​​the left and right clamping blocks each has tooth textures protruding from the surface. The length direction of the tooth textures in the front rough area of ​​the left and right clamping blocks is arranged along the front-back direction.

5. A shoelace buckle according to claim 1, characterized in that: Both the left and right through holes are elongated holes arranged along the front-to-back direction.

6. A shoelace buckle according to claim 1, characterized in that: The pushed surfaces of both the left and right clamping blocks are curved. When the right side of the left clamping block is in contact with the left side of the right clamping block, the pushed surfaces of the left and right clamping blocks are joined to form an inverted frustum-shaped hole, which encloses the circumferential surface of the push head.

7. A shoelace buckle according to claim 1, characterized in that: The pusher also includes a guide post; the guide post has a circular cross-section, and the top of the guide post is connected to the bottom surface of the pusher head; a guide groove is formed on the top surface of the base plate, the guide groove has a circular cross-section, and the bottom end of the guide post is inserted into the guide groove.

8. A shoelace buckle according to claim 1, characterized in that: The clamping transmission assembly also includes a front reset elastic element and a rear reset elastic element; each of the front and rear reset elastic elements includes an elastic strip and two locking blocks, which are connected by the elastic strip; the left and right clamping blocks each have a front locking groove and a rear locking groove; the front and rear locking grooves of the left clamping block are respectively connected to its top surface and right side surface, and the front and rear locking grooves of the right clamping block are respectively connected to its top surface and left side surface, and the pushed surfaces of the left and right clamping blocks are respectively... Between its own front and rear clamping slots; the front clamping slot of the left clamping block is directly opposite the front clamping slot of the right clamping block, and the rear clamping slot of the left clamping block is directly opposite the rear clamping slot of the right clamping block; one of the clamping blocks of the front reset elastic member is embedded in the front clamping slot of the left clamping block, and the other clamping block of the front reset elastic member is embedded in the front clamping slot of the right clamping block; one of the clamping blocks of the rear reset elastic member is embedded in the rear clamping slot of the left clamping block, and the other clamping block of the rear reset elastic member is embedded in the rear clamping slot of the right clamping block.

Images