A watch buckle, watchband and watch with a detachable fine adjustment

Abstract

A watch clasp with a detachable plate for fine-tuning the strap length includes a clasp assembly, a first core assembly, and a second core assembly. The clasp assembly includes a frame and two pressing structures. Each pressing structure includes a press and two limiting members, with the limiting members moving away from the center of the frame when the press is pressed. The first core assembly includes a first core and a faceplate. Both ends of the first core are hinged to the frame and the faceplate and have first insertion holes. A locking bolt is provided on the lower surface of the faceplate. The second core assembly includes a second core and a core fine-tuning component. One end of the second core is hinged to the frame, and the other end of the second core has a second insertion hole and a groove on its lower surface. Multiple limiting grooves are formed in the inner wall of the groove. A guide hole communicating with the groove is provided on the upper surface of the second core. A step-limiting member is provided in the groove. The core fine-tuning component includes a main body and a mounting component disposed in the groove. The main body has a limiting hole for the step-limiting member to pass through and a spring pin that extends and retracts into the limiting groove. A watch strap and a watch including the above-mentioned clasp are also disclosed.

Description

Technical Field

[0001] This utility model relates to the field of watch technology, and in particular to a watch buckle, watch strap and watch with a detachable plate for fine adjustment. Background Technology

[0002] A spring-loaded clasp is a spring-loaded locking component in a folding watch clasp that can be opened by pressing. Its internal spring structure allows the clasp to automatically spring back to the locked position after being pressed and released. The spring-loaded clasp unlocks the folding mechanism of the clasp by pressing, thus extending the overall length of the watch band for wearing on the wrist. Its simple opening and closing allows for quick and easy watch fitting, making it widely used in the clasp structure of steel watch bands. During watch wearing, the spring-loaded clasp generally has two states: open and closed. When the spring-loaded clasp is closed, its length is not adjustable, and the overall length of the watch band is fixed. Since commercially available watch bands and clasps are designed to meet the needs of most users, the dimensions of the band and clasp are fixed once a watch model is selected. If a user purchases a watch band that does not fit their wrist size, the only way to adjust the band length is by removing or adding links. However, when adjusting the length of the watch band by removing and adding links, the smallest unit of change in the length of the watch band is the length of a single link. In actual use, it is difficult for the difference between the size of the user's wrist and the size of the watch band to be exactly an integer multiple of the length of the link. Thus, even by removing and adding links, it is difficult to make the length of the watch band fit the user's wrist size perfectly, resulting in insufficient comfort for the user when wearing the watch. Utility Model Content

[0003] Therefore, it is necessary to address the above-mentioned shortcomings by providing a detachable, fine-tuning buckle, watch strap, and watch that allows for micro-adjustment of the strap length, thereby improving the fit between the strap length and the user's wrist size and the comfort of wearing the watch.

[0004] A clasp for fine-tuning by disassembly, used to connect a first watch band and a second watch band, comprising:

[0005] A buckle assembly includes a frame and two pressing structures disposed on two opposite sides of the frame. Each pressing structure includes a button slidably mounted on the frame and two limiting members spaced apart on the inner side of the button. The limiting members move away from the center of the frame when the button is pressed and retract towards the center of the frame when the pressing pressure is released.

[0006] A first core assembly includes a first core and a faceplate. One end of the first core is hinged to one end of the frame. The lower part of the other end of the first core has a first insertion hole for inserting a limiting member. The upper part of the other end of the first core is hinged to the faceplate. A channel for threading a first watch strap is formed between the faceplate and the first core. The lower surface of the faceplate has a locking bolt for inserting a buckle eyelet into the first watch strap.

[0007] The second core assembly includes a second core and a core fine-tuning component. One end of the second core is hinged to the other end of the frame. The other end of the second core has a second insertion hole for inserting another limiting component. The lower surface of the second core has a groove penetrating the other end of the second core. The inner sidewall of the groove has multiple limiting slots spaced apart along the length of the second core. The upper surface of the second core has a guide hole communicating with the groove and extending along the length of the second core. A level limiting component connected to the inner sidewall of the groove is provided in the groove. The core fine-tuning component includes a main body slidably disposed in the groove and an mounting component fixedly connected to the upper surface of the main body and extending out of the guide hole to connect to the second watch strap. The main body has a limiting hole penetrating two opposite sides of the main body and passing through the level limiting component. The limiting hole extends along the length of the second core. A spring pin is installed on the main body. The head of the spring pin can be retractably inserted into the limiting slot when the main body moves along the length of the second core.

[0008] In one embodiment, the cross-section of the limiting groove is semi-circular, and an arc-shaped guide surface is formed between the groove opening side edge and the inner wall of the groove.

[0009] In one embodiment, the inner walls of the groove are provided with a plurality of spaced-apart limiting grooves. The main body has an installation hole that penetrates the two opposite sides of the main body at one end adjacent to the first core. The spring wave pin is inserted into the installation hole and fixedly connected to the inner wall of the installation hole. The head of the spring wave pin extends out of the installation hole and is inserted into the limiting groove.

[0010] In one embodiment, the inner surface of the groove away from the first core is a first arc surface, and the end face of the main body away from the first core is a second arc surface. The radius of the circle containing the first arc surface is greater than the radius of the circle containing the second arc surface.

[0011] In one embodiment, the core-making fine-tuning component further includes a level tube that slides into a limiting hole, the level limiting component being located in a groove and fixedly connected to two opposite sides of the groove, and the level limiting component passing through the level tube.

[0012] In one embodiment, the width of the main body is greater than the width of the guide hole, and a guide boss with a width adapted to the guide hole is formed on the upper surface of the main body, and a limiting platform is formed between the upper surface of the main body and the guide boss; the mounting component includes a lug fixed on the upper surface of the guide boss near one end of the first core, a connecting rod passing through the lug and fixed on the lug, and the connecting rod extending along the width direction of the main body and connecting to the second watch strap.

[0013] In one embodiment, the guide boss has a recessed side adjacent to the first core forming to form a clearance extending along the width of the body.

[0014] In one embodiment, the frame includes two parallel and oppositely arranged arc-shaped strips and a connecting block located between the two arc-shaped strips and fixedly connected to the middle of the inner side surface of each arc-shaped strip. The connecting block divides the area between the two arc-shaped strips to form a first receiving area and a second receiving area that are spaced apart. One side of the connecting block is provided with a first connecting pin located in the first receiving area and fixedly connected to the inner side surface of the two arc-shaped strips, and the other side of the connecting block is provided with a second connecting pin located in the second receiving area and fixedly connected to the inner side surface of the two arc-shaped strips. The first connecting pin passes through the first core and rotates with the first core, and the second connecting pin passes through the second core and rotates with the second core.

[0015] An installation groove is provided on the outer side of the arc-shaped strip at the corresponding connecting block. Two through holes are provided on the bottom surface of the installation groove, which penetrate the inner side of the arc-shaped strip and are located on both sides of the connecting block. A slider is slidably arranged in the installation groove. Two limiting members pass through the two through holes one by one and are fixedly connected to the slider. The button is slidably inserted into the installation groove. Two slots corresponding to the two limiting members are provided on one side of the button in the installation groove, and a first positioning hole and a second positioning hole are located between the two slots. A spring is fixed in each slot. The end of the spring extends out of the slot and elastically abuts against the tail of the limiting member.

[0016] The buckle assembly also includes two push rods extending along the width of the frame and arranged centrally. One end of the push rod is fixed in a first positioning hole of a press, the push rod passes through the connecting block and the two sliders, and its other end is inserted into a second positioning hole of another press. The push rod is provided with a shoulder that abuts against the inner side of the slider at its distal end. When the press is pressed, the push rod pushes the slider at its distal end to move away from the center of the connecting block, so that the head of the limiting member retracts into the through hole.

[0017] This utility model also discloses a watch strap, which includes the aforementioned clasp with disassembly and fine adjustment.

[0018] This utility model also discloses a watch that includes the aforementioned clasp with a disassembly plate for fine adjustment.

[0019] The watch buckle, strap, and watch implementing this utility model with disassembly and fine adjustment feature, by creating grooves, limiting grooves, and guide holes on the second core, and installing spring pins on the core fine adjustment component, allows for fine adjustment of the overall strap length by pulling the core fine adjustment component when the buckle is engaged, causing the spring pins to engage with the limiting grooves. This improves the accuracy and reliability of strap length adjustment, ensuring the strap length matches the user's wrist size and enhancing the user's comfort when wearing the watch. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the buckle in a folded state in one embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the buckle in the first opening stage in one embodiment of the present invention;

[0022] Figure 3 This is a top view of the watch buckle in the first opening stage in one embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the buckle in the second opening stage in one embodiment of the present invention;

[0024] Figure 5 This is a top view of the buckle in the second opening stage in one embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the buckle in the third opening stage in one embodiment of the present invention;

[0026] Figure 7 This is a top view of the buckle in the third opening stage in one embodiment of the present invention;

[0027] Figure 8 This is a structural diagram of the watch buckle in one embodiment of the present invention after the first core-making component has been removed;

[0028] Figure 9 This is a schematic diagram of the structure of the watch buckle in another state after the first core-making component is removed, according to one embodiment of the present invention;

[0029] Figure 10 This is an exploded view of the buckle in one embodiment of the present invention;

[0030] Figure 11 This is a schematic diagram of the second core-making structure in one embodiment of the present invention;

[0031] Figure 12 This is a schematic diagram of the core-making fine-tuning component after the connecting rod has been removed in one embodiment of this utility model. Detailed Implementation

[0032] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0033] Example 1

[0034] Please combine Figure 1-12This utility model discloses a detachable, fine-tuning watch buckle that allows for micro-adjustment of the watch strap length, improving the fit between the strap length and the user's wrist size and enhancing the comfort of wearing the watch. The buckle connects two sections of the watch strap, allowing the strap to encircle and confine the watch to the wearer's wrist for comfortable wear. The watch strap includes a first strap and a second strap; the buckle connects the first and second straps. In this embodiment, the buckle includes a buckle assembly 100, a first core assembly 200, and a second core assembly 300. The buckle assembly 100 includes a frame 110 and two pressing structures located on opposite sides of the frame 110, with the pressing structures situated on the outer edge of the frame 110. The pressing structure includes a button 120 slidably mounted on a frame 110 and two limiting members 130 spaced apart inside the button 120. The limiting members 130 move away from the center of the frame 110 when the button 120 is pressed, and retract towards the center of the frame 110 when the pressure on the button 120 is released. Alternatively, the frame 110, the pressing structure, the first core assembly 200, and the second core assembly 300 together form a spring-loaded buckle structure. An elastic element is provided within the pressing structure. When the button 120 is pressed, causing it to move towards the center of the frame 110, the limiting members 130 move in the opposite direction to the button 120, moving away from the center of the frame 110, thereby releasing the locking of the limiting members 130 to the first core assembly 200 and the second core assembly 300. In this embodiment, the inner side of the button 120 refers to the side of the button 120 located between the two pressing structures. The first core assembly 200 includes a first core 210 and a faceplate 220. One end of the first core 210 is hinged to one end of the frame 110. The lower part of the other end of the first core 210 is provided with a first insertion hole 211 for inserting a limiting member 130. The upper part of the other end of the first core 210 is hinged to the faceplate 220. A channel 230 for threading a first watch strap is formed between the faceplate 220 and the first core 210. The lower surface of the faceplate 220 is provided with a locking bolt 221 for inserting a buckle eye of the first watch strap. The second core-making assembly 300 includes a second core 310 and a core-making fine-tuning component 320. One end of the second core 310 is hinged to the other end of the frame 110. The other end of the second core 310 has a second insertion hole 311 for inserting another limiting component 130. The lower surface of the second core 310 has a groove 312 penetrating the other end of the second core 310. The inner sidewall of the groove 312 has a plurality of limiting grooves 313 spaced apart along the length direction of the second core 310. The upper surface of the second core 310 has a guide hole 314 communicating with the groove 312 and extending along the length direction of the second core 310. The groove 312 has a level limiting component 315 connected to the inner sidewall of the groove 312. In this embodiment, the first insertion hole and the second insertion hole are countersunk holes or countersunk grooves.The core-making fine-tuning component 320 includes a main body 321 slidably disposed in a groove 312, and an mounting component fixedly connected to the upper surface of the main body 321 and extending out through a guide hole 314 to connect to the second watch strap. The main body 321 has a limiting hole 322 that passes through two opposite sides of the main body 321 and passes through a level limiting component 315. The limiting hole 322 extends along the length direction of the second core-making component 310. A spring wave pin 323 is installed on the main body 321. The head of the spring wave pin 323 can be retractably inserted into the limiting groove 313 when the main body 321 moves along the length direction of the second core-making component 310.

[0035] In this embodiment, the first core 210 and the second core 310 are disposed opposite to each other at both ends of the frame 110 and are respectively hinged to the frame 110. During the buckle fastening process, the first core 210 and the second core 310 rotate relative to the frame 110, so that the movable ends of the first core 210 and the second core 310 move closer to the middle of the frame 110 until the first insertion hole 211 on the first core 210 and the second insertion hole 311 on the second core 310 respectively correspond to the two limiting members 130 on the button 120 in a concave-convex fit, so as to lock the first core 210 and the second core 310 and complete the buckle fastening (folding). Conversely, when the clasp needs to be opened, pressing the two buttons 120 causes the limiting member 130 to retract and move away from the first insertion hole 211 and the second insertion hole 311, thus releasing the constraint of the limiting member 130 on the first core 210 and the second core 310, allowing the first core 210 and the second core 310 to be pulled up, thereby unfolding the clasp. After the clasp is fastened, the user can pull the second strap to move its end away from the first strap, or push the end of the second strap to move its end closer to the first strap. During this process, the core adjustment member 320 moves within the groove 312 along the length of the second core 310 under the traction of the second strap, achieving adjustment of the entire strap length. The movement of the core-making fine-tuning component 320 is positioned by the cooperation of the spring wave pin 323 and the limiting groove 313 to prevent the core-making fine-tuning component 320 from sliding freely in the groove 312. In this way, the minimum adjustment unit of the watch strap length is limited by the distance between two adjacent limiting grooves 313, and the fine adjustment of the watch strap length can be realized, thereby improving the reliability and accuracy of the watch strap length adjustment.

[0036] The frame 110 serves as the base of the clasp in this embodiment, while the pressing structure is used to lock or unlock the first core 210 and the second core 310 to open or fold the clasp. In this embodiment, the frame 110 includes two parallel and oppositely arranged arc-shaped bars 111 and a connecting block 112 located between the two arc-shaped bars 111 and fixedly connected to the middle of the inner side surface of each arc-shaped bar 111 (i.e., the side of the arc-shaped bar 111 adjacent to the other arc-shaped bar 111). The connecting block 112 separates the area between the two arc-shaped bars 111 to form a first receiving area 113 and a second receiving area 114 that are spaced apart. It can be understood that the entire frame 110 has an H-shaped structure, and the lower surface of the arc-shaped bars 111 is a rounded surface, so that when the watch is worn, the lower surface of the arc-shaped bars 111 of the frame 110 can fit against the user's wrist, improving the user's comfort when wearing the watch. One side of the connecting block 112 is provided with a first connecting pin 115 located in the first receiving area 113 and fixedly connected to the inner surfaces of the two arc-shaped strips 111. The other side of the connecting block 112 is provided with a second connecting pin 116 located in the second receiving area 114 and fixedly connected to the inner surfaces of the two arc-shaped strips 111. The first connecting pin 115 passes through the first core 210 and rotates with the first core 210. The second connecting pin 116 passes through the second core 310 and rotates with the second core 310, thereby realizing the hinge connection between the first core 210 and the frame 110 and the second core 310 and the frame 110. When the clasp is fastened, the first core 210 is completely received in the first receiving area 113, and the second core 310 is completely received in the second receiving area 114, so as to reduce the influence of the first core 210 and the second core 310 on the thickness of the clasp and realize the thin and light design of the clasp.

[0037] An installation groove 117 is provided on the outer side of the arc-shaped strip 111 (the side of the arc-shaped strip 111 facing away from the other arc-shaped strip 111) at the corresponding connecting block 112. Two through holes 118 are provided on the bottom surface of the installation groove 117, which penetrate the inner side of the arc-shaped strip 111 and are located on both sides of the connecting block 112. A slider 119 is slidably arranged in the installation groove 117. Two limiting members 130 pass through the two through holes 118 one by one and are fixedly connected to the slider 119. A pressing device 120 is slidably inserted into the installation groove 117. Two slots 121 corresponding to the two limiting members 130 are provided on one side of the pressing device 120 located in the installation groove 117, and a first positioning hole 122 and a second positioning hole 123 are located between the two slots 121. A spring 124 is fixed in each slot 121. The end of the spring 124 extends out of the slot 121 and elastically abuts against the tail of the limiting member 130. The buckle assembly 100 also includes two push rods 140 extending along the width direction of the frame 110 and arranged centrally. One end of the push rod 140 is fixed in the first positioning hole 122 of a press 120. The push rod 140 passes through the connecting block 112 and the two sliders 119, and its other end is inserted into the second positioning hole 123 of the other press 120. The push rod 140 is provided with a shoulder that abuts against the inner side of the slider 119 at its distal end. When the press 120 is pressed, the push rod 140 pushes the slider 119 at its distal end to move away from the center of the connecting block 112, so that the head of the limiting member 130 retracts into the through hole 118. In this embodiment, the slider 119 at the distal end of the push rod 140 refers to the slider 119 adjacent to the free end of the push rod 140, that is, the slider 119 on the side opposite to the side where the button 120 is fixedly connected to the push rod 140; the inner side of the slider 119 refers to the side of the slider 119 facing away from the groove opening of its mounting groove 117. It can also be understood that each of the two push rods 140 is fixedly connected to a button 120, and the fixed connection parts of the two push rods 140 and the corresponding buttons 120 are located on both sides of the frame 110. In this way, the second positioning hole 123 on one button 120 is used to provide an insertion channel for the end of the push rod 140 on the other button 120. Through the cooperation of the two push rods 140 and the two buttons 120, the two buttons 120 can be positioned to prevent the buttons 120 from falling off the frame 110. The end of the limiting member 130 is wedge-shaped or conical to reduce the difficulty of inserting the limiting member 130 into the first or second socket.

[0038] During the pressing of button 120, button 120 moves towards the center of frame 110. At this time, push rod 140 connected to button 120 moves synchronously and pushes slider 119 through shoulder, causing slider 119 to drive limiting member 130 to move away from the center of frame 110. During this process, spring 124 is compressed and deformed, and the end of limiting member 130 retracts into through hole 118 to disengage from first insertion hole 211 and second insertion hole 311, thereby releasing the constraint on first core 210 and second core 310. Conversely, when button 120 is released, spring 124 restores its elastic deformation and simultaneously pushes button 120 and limiting member 130, causing button 120 to reset. At the same time, limiting member 130 drives slider 119 to reset, and the end of limiting member 130 extends out of through hole 118 again.

[0039] When fastening the clasp, simply rotate the first core 210 and press it into the first receiving area 113, and rotate the second core 310 and press it into the second receiving area 114. When the side of the first core 210 or the second core 310 contacts the limiting member 130, as the first core 210 or the second core 310 is pressed down, the limiting member 130 is retracted into the through hole 118 under pressure, and the spring 124 is compressed. When the first core 210 or the second core 310 is pressed down until the limiting member 130 is aligned with the first insertion hole 211 or the second insertion hole 311, the constraint of the first core 210 or the second core 310 on the limiting member 130 is released, and the limiting member 130 is reset under the push of the spring 124 to be inserted into the first insertion hole 211 or the second insertion hole 311, thereby locking the first core 210 or the second core 310.

[0040] It should be noted that this embodiment only illustrates one structure of the buckle assembly 100. In another embodiment, the frame 110 may also consist of a single arc-shaped plate and a connecting block 112 fixed to the middle of the upper surface of the arc-shaped plate. The first core 210 is located on one side of the arc-shaped plate and is hinged to one end of the upper surface of the arc-shaped plate. The second core 310 is located on the other side of the arc-shaped plate and is hinged to the other end of the upper surface of the arc-shaped plate. The pressing structure and the push rod 140 are still the same as in the above embodiment. The only difference is that in the above embodiment, the connecting block 112 is a strip structure, while in this embodiment, the connecting block 112 is an I-shaped structure, and the mounting groove 117 is opened on the two opposite outer sides of the connecting block 112. Its specific structure and operation process will not be described in detail here. Of course, the buckle assembly 100 in this solution can also be any commercially available slingshot buckle frame 110 and pressing structure, as long as it can be ensured that the limiting member 130 can retract to unlock the buckle when the pressing 120 is pressed, which will not be elaborated here.

[0041] The faceplate 220 includes a front panel 222 and two ear plates 223 fixed to the lower surface of the front panel 222 and arranged opposite each other. A third insertion hole is provided on the first core 210 above the first insertion hole 211. When the faceplate 220 and the first core 210 are assembled, the two ear plates 223 of the faceplate 220 are located on both sides of the first core. The faceplate 220 is rotatably engaged with the first core 210 by a third connecting pin that passes through the two ear plates 223 and is inserted into the third insertion hole. By providing the two ear plates 223, a connection portion is provided between the faceplate 220 and the first core 210. Furthermore, the distance between the lower surface of the front panel 222 and the upper surface of the first core 210 is extended, thereby forming a channel 230 between the first core 210 and the front panel 222 for the first watch strap to pass through. The locking bolt 221 is fixed on the lower surface of the panel 222, away from the second core 310. In this embodiment, the bottom end of the locking bolt 221 has an enlarged portion. This allows the enlarged portion to abut against the lower edge of the buckle after the locking bolt 221 is inserted into the buckle eye of the first watch strap, preventing the locking bolt 221 from disengaging itself and ensuring the reliability of the locking bolt 221 in limiting the first watch strap. Furthermore, in actual production, perforations can be made on the panel 222 to form corresponding patterns or logos, or icons can be set on the upper surface of the panel 222, according to consumer preferences or design requirements.

[0042] In this embodiment, the limiting groove 313 constitutes a position adjustment setting for the main body 321 within the groove 312, that is, a setting for adjusting the watch strap length. The cross-section of the limiting groove 313 has a semi-circular arc structure, and an arc-shaped guide surface is formed between the groove opening side edge of the limiting groove 313 and the inner wall of the groove 312. In this way, the difficulty of the spring wave pin 323 sliding along the inner wall of the groove 312 and entering or leaving the limiting groove 313 can be reduced, ensuring the structural stability of the watch strap after length adjustment while reducing the difficulty of adjusting the watch strap length. In this embodiment, by increasing the number of limiting grooves 313 along the length direction of the second core 310 on the inner surface of the groove 312 and reducing the distance between adjacent limiting grooves 313, the minimum adjustment distance of the core fine-tuning component 320 when adjusting the watch strap length can be shortened, further improving the adjustment accuracy of the watch strap length. Furthermore, in this embodiment, the two opposite inner sidewalls of the groove 312 are provided with a plurality of spaced-apart limiting grooves 313. The main body 321 has a mounting hole 324 extending through the two opposite sides of the main body 321 at one end adjacent to the first core 210. The spring pin 323 passes through the mounting hole 324 and is fixedly connected to the inner wall of the mounting hole 324. The head of the spring pin 323 extends out of the mounting hole 324 and inserts into the limiting groove 313. Thus, the heads at both ends of the spring pin 323 respectively engage with the limiting grooves 313 on both sides of the main body 321, increasing the contact area between the spring pin 323 and the second core 310. This ensures that the main body 321 experiences uniform force during sliding within the groove 312, preventing the main body 321 from shaking and ensuring reliable adjustment of the watch strap length.

[0043] In one embodiment, the inner surface of the groove 312 away from the first core 210 is a first arc surface, and the end face of the main body 321 away from the first core 210 is a second arc surface. The radius of the circle containing the first arc surface is larger than the radius of the circle containing the second arc surface. By designing the inner surface of the groove 312 away from the first core 210 as an arc surface and the end face of the main body 321 away from the first core 210 as an arc surface, the impact on the second core 310 when the main body 321 slides in the groove 312 can be reduced. In addition, the design of the first arc surface is actually based on the fact that the inner surface of the groove 312 away from the first core 210 is a vertical plane, and a wedge-shaped block with an arc surface is set at that location. In this way, the material thickness of the part of the second core 310 connected to the frame 110 is larger, which can improve the structural strength of the second core 310.

[0044] In this embodiment, the limiting hole 322 has a racetrack-shaped or waist-shaped structure. The dimension of the limiting hole 322 along the length direction of the second core 310 defines the maximum sliding range of the main body 321 within the groove 312, that is, it defines the range of adjustment of the watch strap length by the core fine-tuning component 320. The core fine-tuning component 320 also includes a level tube 325 that slides into the limiting hole 322. The level limiting component 315 is located within the groove 312 and is fixedly connected to the two opposite sides of the groove 312, and the level limiting component 315 passes through the level tube 325. The level limiting component 315 has a rod-shaped structure. The level limiting component 315 and the level tube 325 cooperate with each other, and the sliding cooperation between the level tube 325 and the inner wall of the limiting hole 322 guides the sliding of the main body 321. At the same time, the mutual constraint between the level tube 325 and the limiting hole 322 limits the sliding range of the main body 321 within the groove 312.

[0045] In one embodiment, the width of the main body 321 is greater than the width of the guide hole 314. A guide boss 326 with a width adapted to the guide hole 314 is formed on the upper surface of the main body 321. A limiting platform 327 is formed between the upper surface of the main body 321 and the guide boss 326. Thus, the main body 321 is limited by the cooperation between the edge of the guide hole 314 and the limiting platform 327, and the main body 321 is restricted in the groove 312 to prevent the main body 321 from flipping upward under the pull of the second watch strap. At the same time, the secondary guidance of the core-making fine adjustment component 320 can be realized by the sliding cooperation between the guide boss 326 and the inner wall of the guide hole 314, so as to improve the sliding stability of the core-making fine adjustment component 320 and the reliability of the watch strap length adjustment. The mounting component includes a lug 328 fixed to the upper surface of the guide boss 326 near one end of the first core 210, and a connecting rod 329 passing through and fixed to the lug 328. The connecting rod 329 extends along the width direction of the main body 321 and connects to the second watch strap. Specifically, the lug 328 has a through hole 3281. The connecting rod 329 includes a first rod body 3291 and a second rod body 3292. The outer diameter of the first rod body 3291 is larger than the inner diameter of the through hole 3281, and the first rod body 3291 has a threaded hole. The second rod body 3292 includes a large-diameter portion with an outer diameter larger than that of the through hole 3281 and a small-diameter portion connected to the large-diameter portion. The diameter of the small-diameter portion is smaller than the inner diameter of the through hole 3281, and the small-diameter portion has an external thread. Thus, through... By passing the small-diameter portion of the second rod 3292 through the through hole 3281 and inserting it into the threaded hole of the first rod 3291, the first rod 3291 and the second rod 3292 can be fixed on the lug 328. Since the transition part between the large-diameter portion and the small-diameter portion and the end face of the first rod 3291 are in contact with the edge of the through hole 3281, the first rod 3291 and the second rod 3292 can be prevented from falling off the lug 328, thus improving the stability of the connecting rod 329 installation.

[0046] In addition, in this embodiment, the guide boss 326 has a recess on one side adjacent to the first core 210 to form a clearance 3261 extending along the width direction of the main body 321. Since the upper surface of the second core 310 has a guide hole 314, a crossbar is formed on the edge of the guide hole 314 adjacent to the first core 210. By setting the clearance 3261, the impact of the crossbar on the core fine-tuning part 320 during sliding can be avoided, thus preventing the crossbar from breaking and extending the service life of the watch buckle.

[0047] Example 2

[0048] This utility model also discloses a watch strap, which includes the aforementioned adjustable buckle with a disassembly plate. The strap also includes a first strap for passing through the channel 230 between the first core 210 and the faceplate 220, and a second strap for connecting to the mounting part of the buckle. The first strap has a buckle eye for inserting the locking bolt 221 on the faceplate 220. The structure of the adjustable buckle with a disassembly plate is exactly the same as that of the adjustable buckle with a disassembly plate in Embodiment 1, and will not be described again here.

[0049] Example 3

[0050] This utility model also discloses a watch, which includes the aforementioned clasp with adjustable plate, a first strap for passing through the channel 230 between the first core 210 and the faceplate 220, a second strap connected to the clasp's mounting component, and a watch head connected to the first and second straps. The first strap has a clasp eye for inserting a locking bolt 221 from the faceplate 220. The watch head can be any watch head available on the market, including mechanical, quartz, and smartwatch heads, which will not be described further here. The structure of the clasp with adjustable plate is exactly the same as that of the clasp with adjustable plate in Embodiment 1, and will not be described further here.

[0051] The watch buckle, strap, and watch implementing this utility model with disassembly and fine adjustment feature, by creating a groove 312, a limiting groove 313, and a guide hole 314 on the second core 310, and installing a spring wave pin 323 on the core fine adjustment component 320, can achieve fine adjustment of the overall length of the watch strap by pulling the core fine adjustment component 320 and positioning the spring wave pin 323 in the limiting groove 313 when the buckle is fastened. This allows for adjustment of the position of the core fine adjustment component 320 within the groove 312, enabling fine adjustment of the overall length of the watch strap. This improves the accuracy and reliability of the watch strap length adjustment by adjusting the position of the core fine adjustment component 320 individually or simultaneously while disassembling and assembling the watch links, ensuring the watch strap length matches the user's wrist size and thus enhancing the user's comfort when wearing the watch.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A watch buckle with a detachable plate for fine adjustment, used to connect a first watch strap and a second watch strap, characterized in that, include: A buckle assembly includes a frame and two pressing structures disposed on two opposite sides of the frame. Each pressing structure includes a button slidably mounted on the frame and two limiting members spaced apart on the inner side of the button. The limiting members move away from the center of the frame when the button is pressed and retract towards the center of the frame when the pressing pressure is released. The first core assembly includes a first core and a faceplate. One end of the first core is hinged to one end of the frame. The lower part of the other end of the first core has a first insertion hole for inserting a limiting member. The upper part of the other end of the first core is hinged to the faceplate. A channel for threading a first watch strap is formed between the faceplate and the first core. The lower surface of the faceplate has a locking bolt for inserting a buckle eye of the first watch strap. as well as The second core assembly includes a second core and a core fine-tuning component. One end of the second core is hinged to the other end of the frame. The other end of the second core has a second insertion hole for inserting another limiting component. The lower surface of the second core has a groove penetrating the other end of the second core. The inner sidewall of the groove has multiple limiting slots spaced apart along the length of the second core. The upper surface of the second core has a guide hole communicating with the groove and extending along the length of the second core. A level limiting component connected to the inner sidewall of the groove is provided in the groove. The core fine-tuning component includes a main body slidably disposed in the groove and an mounting component fixedly connected to the upper surface of the main body and extending out of the guide hole to connect to the second watch strap. The main body has a limiting hole penetrating two opposite sides of the main body and passing through the level limiting component. The limiting hole extends along the length of the second core. A spring pin is installed on the main body. The head of the spring pin can be retractably inserted into the limiting slot when the main body moves along the length of the second core.

2. The panel removal fine adjustment watch buckle according to claim 1, characterized in that, The cross-section of the limiting groove is semi-circular, and an arc-shaped guide surface is formed between the groove opening side edge and the inner wall of the groove.

3. The debonding and fine-adjustment watch buckle according to claim 2, characterized in that, The inner walls of the groove are provided with a plurality of spaced-apart limiting grooves. The main body has an installation hole that penetrates the two opposite sides of the main body at one end adjacent to the first core. The spring wave pin is inserted into the installation hole and fixedly connected to the inner wall of the installation hole. The head of the spring wave pin extends out of the installation hole and is inserted into the limiting groove.

4. The panel removal micrometer watch buckle according to claim 1, wherein, The inner surface of the groove away from the first core is a first arc surface, and the end face of the main body away from the first core is a second arc surface. The radius of the circle containing the first arc surface is greater than the radius of the circle containing the second arc surface.

5. The panel removal micrometer watch buckle according to claim 1, wherein, The core-making fine-tuning component also includes a level tube that slides into the limiting hole. The level limiting component is located in the groove and is fixedly connected to the two opposite sides of the groove, and the level limiting component passes through the level tube.

6. The panel removal micrometer watch buckle of claim 1, wherein, The width of the main body is greater than the width of the guide hole. A guide boss with a width adapted to the guide hole is formed on the upper surface of the main body. A limiting platform is formed between the upper surface of the main body and the guide boss. The mounting component includes a lug fixed on the upper surface of the guide boss near one end of the first core, a connecting rod passing through the lug and fixed on the lug, and the connecting rod extending along the width direction of the main body and connecting to the second watch strap.

7. The panel removal micrometer watch buckle according to claim 6, wherein, The guide boss has a recess on one side adjacent to the first core forming to form a clearance space extending along the width of the main body.

8. The panel removal micrometer watch buckle of claim 1, wherein, The frame includes two parallel and oppositely arranged arc-shaped strips, and a connecting block located between the two arc-shaped strips and fixedly connected to the middle of the inner side of each arc-shaped strip. The connecting block divides the area between the two arc-shaped strips to form a first receiving area and a second receiving area that are spaced apart. One side of the connecting block is provided with a first connecting pin located in the first receiving area and fixedly connected to the inner side of the two arc-shaped strips, and the other side of the connecting block is provided with a second connecting pin located in the second receiving area and fixedly connected to the inner side of the two arc-shaped strips. The first connecting pin passes through the first core and rotates with the first core, and the second connecting pin passes through the second core and rotates with the second core. An installation groove is provided on the outer side of the arc-shaped strip at the corresponding connecting block. Two through holes are provided on the bottom surface of the installation groove, which penetrate the inner side of the arc-shaped strip and are located on both sides of the connecting block. A slider is slidably arranged in the installation groove. Two limiting members pass through the two through holes one by one and are fixedly connected to the slider. The button is slidably inserted into the installation groove. Two slots corresponding to the two limiting members are provided on one side of the button in the installation groove, and a first positioning hole and a second positioning hole are located between the two slots. A spring is fixed in each slot. The end of the spring extends out of the slot and elastically abuts against the tail of the limiting member. The buckle assembly also includes two push rods extending along the width of the frame and arranged centrally. One end of the push rod is fixed in a first positioning hole of a press, the push rod passes through the connecting block and the two sliders, and its other end is inserted into a second positioning hole of another press. The push rod is provided with a shoulder that abuts against the inner side of the slider at its distal end. When the press is pressed, the push rod pushes the slider at its distal end to move away from the center of the connecting block, so that the head of the limiting member retracts into the through hole.

9. A watchband, characterized by Includes the watch buckle with disassembly and fine adjustment as described in any one of claims 1-8.

10. A watch characterized by Includes the watch buckle with disassembly and fine adjustment as described in any one of claims 1-8.

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