Extension buckle capable of adjusting length of watchband ring and watch

By introducing a sliding adjustment bead and an elastic adjustment element into the extension buckle, the length of the watch strap can be adjusted with one hand, solving the problem of cumbersome operation requiring two hands in the existing technology and improving ease of use.

CN223979516UActive Publication Date: 2026-03-10DONGGUAN ZHENGYUAN INTELLIGENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-24
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

The existing extension buckle structure is cumbersome to operate, requiring both hands to adjust the length of the watch strap loop, making it inconvenient to use.

Method used

An adjustable watch band extension buckle has been designed, comprising a sliding adjustment bead and an elastic adjustment element. By pressing or lifting the elastic adjustment element with one hand, the sliding adjustment bead can be pushed to slide within the case, thereby extending or shortening the watch band length.

Benefits of technology

It enables convenient one-handed adjustment of the watch strap length, simplifying the operation process and improving efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an extension buckle capable of adjusting the length of a watchband ring and a watch, the extension buckle comprises a face shell, a buckle and a sliding adjusting bead, the buckle and the sliding adjusting bead are accommodated in the face shell, and the buckle and the sliding adjusting bead can be respectively connected with a watchband of the watch; the buckle covers the sliding adjusting bead and is rotatably connected with the surface shell; the sliding adjusting bead comprises an elastic adjusting piece, a plurality of adjusting holes are continuously formed in the inner side of the face shell, the elastic adjusting piece is clamped with one of the adjusting holes, presses or lifts and pushes the elastic adjusting piece, and the elastic adjusting piece is separated from the adjusting holes and pushes the whole sliding adjusting bead to slide in the face shell. According to the structure of the utility model, when the watchband ring of the watch is lengthened or shortened, the operation is simplified, and a user can complete the lengthening or shortening operation with one hand.
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Description

TECHNICAL FIELD

[0001] The utility model relates to watch technical field especially, it relates to a kind of lengthening buckle of adjustable watchband ring and watch. BACKGROUND

[0002] Watchband buckle is applied to watch, it is the structure that two watchbands on watch are connected together to form a watchband ring, when watchband buckle opens, the watchband ring surrounded by two watchbands becomes larger so that watch can be taken out from the wrist of user;When watchband buckle is buckled, the watchband ring surrounded by two watchbands becomes smaller so that watch can be firmly worn on the wrist of user to prevent falling off.

[0003] In order to adjust the size of watchband ring and adapt the tightness after different people wear watch, corresponding length adjusting structure is added on watchband buckle in prior art, and this watchband buckle that can adjust the length of watchband ring is also called lengthening buckle.

[0004] The existing lengthening buckle structure is complex, and the operation is cumbersome, for example, the existing lengthening buckle needs to be unlocked by one hand and the watchband needs to be pulled by the other hand to complete the operation of lengthening or shortening, that is, both hands need to be coordinated to complete the operation.

[0005] Therefore, the prior art needs to be improved. UTILITY MODEL CONTENT

[0006] In view of the above shortcomings of prior art, the purpose of the utility model is to provide a lengthening buckle of adjustable watchband ring and watch, to simplify the operation when lengthening or shortening the watchband ring of watch, and the user can complete the operation of lengthening or shortening by one hand.

[0007] To achieve the above purpose, the utility model provides a lengthening buckle of adjustable watchband ring, which comprises a face shell, a buckle and a sliding adjusting bead accommodated in the face shell, and the buckle and the sliding adjusting bead can be connected to the watchband of watch respectively.

[0008] The buckle is rotatably connected to the face shell above the sliding adjusting bead.

[0009] The sliding adjusting bead comprises an elastic adjusting member, and the inner side of the face shell is continuously arranged with a plurality of adjusting holes, the elastic adjusting member is engaged with one of the adjusting holes, the elastic adjusting member is pressed or lifted and pushed, the elastic adjusting member is disengaged from the adjusting hole and pushes the whole sliding adjusting bead to slide in the face shell.

[0010] In some embodiments, the lengthening buckle further comprises a buckle locking part.

[0011] The buckle locking part is accommodated in the face shell, and the buckle locking part is lockably connected or unlockably separated from the buckle.

[0012] When the buckle is connected with the buckle part, the buckle covers the buckle part and the sliding adjusting bead; when the buckle is disconnected with the buckle part, the buckle can rotate relative to the face shell to expose the sliding adjusting bead and the buckle part.

[0013] In some embodiments, the sliding adjusting bead further comprises a seat body, the seat body is provided with a pressing groove;

[0014] The elastic adjusting member comprises a pressing block, an elastic member and a connecting member, the two ends of the pressing block are provided with locking pieces;

[0015] The connecting member movably connects the pressing block in the pressing groove, the two ends of the elastic member abut against the pressing block and the inner wall of the pressing groove respectively, and the locking pieces of the pressing block can be embedded in the adjusting hole after the pressing block is lifted up by the elastic member.

[0016] In some embodiments, the sliding adjusting bead further comprises a guide sliding rod transversely arranged on the seat body;

[0017] The inner wall of the face shell is further provided with a guide groove, and the guide sliding rod slides in the guide groove.

[0018] In some embodiments, the buckle part comprises a pressing box, a first key and a second key arranged in the pressing box and exposed from both sides of the pressing box, and the surface of the pressing box is provided with a lock hole penetrating from top to bottom;

[0019] The buckle is provided with a lock head on the side facing the pressing box, the lock head is inserted into the lock hole and locked with the first key and the second key.

[0020] In some embodiments, the buckle comprises an inner fork plate arranged in the middle, outer fork plates arranged on both sides of the inner fork plate, a first connecting shaft penetrating one end of the two outer fork plates, and a second connecting shaft penetrating the other end of the two outer fork plates and one end of the inner fork plate, the two ends of the first connecting shaft are fixed on the face shell, and the bottom of the inner fork plate is provided with the lock head.

[0021] In some embodiments, the first key and the second key each comprise a key part, a limiting part and a hook part connected in sequence;

[0022] The two side walls of the face shell are each provided with a key hole, and the key part penetrates the side wall of the pressing box and is exposed from the key hole;

[0023] The limiting part is provided with a limiting sliding groove, and a limiting rod is vertically arranged on the pressing box and penetrates the limiting sliding groove;

[0024] The hook portions of the first button and the second button are cross arranged and slidable to engage or disengage with the lock head.

[0025] In some embodiments, the hook portion is L-shaped.

[0026] In some embodiments, two inner side walls of the face shell are respectively provided with detachable toothed plates provided with the adjusting holes.

[0027] The utility model also provides a watch, wherein, contain the length of the extension buckle of adjustable watchband ring of preceding.

[0028] It should be understood that, within the scope of the utility model, the above-mentioned technical features of the utility model and the technical features specifically described in the following (such as embodiments) can be combined with each other, thereby constituting new or preferred technical schemes, and due to the limited length, they will not be listed one by one here.

[0029] The utility model has the advantages of:

[0030] Because the extension buckle of the utility model is provided with a sliding adjusting bead in the face shell, the sliding adjusting bead is provided with an elastic adjusting part, the elastic adjusting part is engaged with the adjusting hole on the face shell under the action of elasticity, so that when the elastic adjusting part is not subjected to external force, the whole sliding adjusting bead is clamped and cannot slide in the face shell; when the length needs to be adjusted, the user presses or lifts the elastic adjusting part so that the elastic adjusting part is disengaged from the adjusting hole, after the elastic adjusting part is disengaged from the adjusting hole, the user's hand continues to press or lift the state of the elastic adjusting part and pushes the elastic adjusting part, at this time, the elastic adjusting part will push the whole sliding adjusting bead to slide in the face shell, because the sliding adjusting bead is connected with the watchband, the sliding of the sliding adjusting bead lengthens or shortens the length of the whole watchband ring. The extension buckle of the utility model can be operated by pressing or lifting and pushing the elastic adjusting part with one hand during the adjustment process after opening the buckle, and the adjustment process is simple and fast compared with the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings from the structures shown in the drawings without creating creative labor.

[0032] Figure 1 It is the structural schematic drawing of the extension buckle of adjustable watchband ring of the utility model embodiment one.

[0033] Figure 2 It is the structural schematic drawing of the extension buckle of adjustable watchband ring of the utility model embodiment two. Figure 1Structure schematic diagram of the state after the buckle is opened.

[0034] Figure 3 As Figure 2 Structure schematic diagram of the state after the sliding adjusting bead slides to the right.

[0035] Figure 4 As

[0036] Figure 5 As

[0037] Figure 6 As

[0038] Figure 7 As

[0039] Figure 8 As Figure 1 Structure schematic diagram of the cross section.

[0040] Figure 9 As

[0041] Figure 10 As Figure 9 Structure schematic diagram of the cross section.

[0042] Figure 11 As Figure 9 Structure schematic diagram of the cross section.

[0043] Explanation of reference signs:

[0044] 100-Extension buckle, 1-Face case, 11-Storage slot, 12-Adjustment hole, 13-Guide groove, 14-Button hole, 2-Buckling buckle, 201-First strap connecting part, 21-Inner fork plate, 211-Lock head, 212-First strap connecting block, 22-Outer fork plate, 23-First connecting shaft, 24-Second connecting shaft, 3-Sliding adjusting bead, 301-Second strap connecting part, 31-Elastic adjusting element, 311-Pressing block, 3111-Lock piece, 3112-Screw hole, 3113-First spring hole, 312-Elastic element, 313-Connecting element, 3131- 32-Seat, 321-Pressing groove, 3211-Step hole, 3212-Second spring hole, 322-Slide rod hole, 323-Lock plate groove, 324-Second watch strap connecting block, 33-Guide slide rod, 331-Sliding head, 4-Buck locking part, 401-Lock opening, 41-Pressing box, 411-Lock hole, 412-Upper box body, 413-Lower box body, 42-First button, 43-Second button, 44-Button part, 45-Limiting part, 451-Limiting slide groove, 46-Hook part, 47-Spring, 48-Limiting rod, 5-Gear plate, 6-Screw. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0046] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0047] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0048] Example 1, please refer to Figures 1 to 3 This utility model proposes an adjustable watch strap extension buckle 100, including a face shell 1, a buckle 2 and a sliding adjustment bead 3 housed within the face shell 1, wherein the buckle 2 and the sliding adjustment bead 3 can be connected to the watch strap respectively. Figure 1 and Figure 2As shown in the figure, the faceplate 1 of this embodiment is a U-shaped shell with a storage groove 11 for storing and installing the buckle 2 and the sliding adjustment bead 3.

[0049] like Figure 1 As shown in the diagram, in this embodiment, the left end of the buckle 2 is provided with a first strap connecting part 201, and the right end of the sliding adjusting bead 3 is provided with a second strap connecting part 301. The first strap connecting part 201 connects to the first segment of the watch strap (not shown), and the second strap connecting part 301 connects to the second segment of the watch strap (not shown). The two segments of the watch strap, together with the extension buckle 100, form a complete watch strap loop. The buckle 2 on the extension buckle 100 can be folded or unfolded. When the buckle 2 is folded, the watch strap loop becomes smaller and can be securely worn on the wrist to prevent it from falling off. When the buckle 2 is unfolded, the watch strap loop becomes larger and the watch can be removed from the wrist.

[0050] In this embodiment, the buckle 2 covers the sliding adjustment bead 3 and is rotatably connected to the face shell 1. That is, in this embodiment, both the buckle 2 and the sliding adjustment bead 3 are located in the storage groove 11 of the face shell 1, and the buckle 2 is above the sliding adjustment bead 3, so that the buckle 2 will not interfere with the sliding adjustment bead 3 when it is unfolded or retracted on the face shell 1. Figure 1 The middle part is folded and stored on the front cover 1, while... Figure 2 Then the buckle 2 is in an unfolded state when the face shell 1 is rotated.

[0051] like Figure 2 and Figure 3 As shown, the sliding adjustment bead 3 in this embodiment includes an elastic adjustment member 31. Multiple adjustment holes 12 are continuously arranged on the inner side of the face shell 1. In this embodiment, multiple adjustment holes 12 are arranged on both inner sides of the receiving groove 11 of the face shell 1, such as... Figure 3 As shown, multiple adjustment holes 12 are arranged continuously along the length direction of the case 1, with each adjustment hole 12 corresponding to the adjustment length of one watchband loop. The elastic adjustment member 31 engages with one of the adjustment holes 12, as shown. Figure 2 As shown, in the initial state, when the elastic adjusting member 31 is not subjected to external force, the elastic adjusting member 31 is engaged with a certain adjusting hole 12. At this time, the entire sliding adjusting bead 3 cannot extend along the length direction of the face shell 1 within the face shell 1. Figure 2 It slides left and right. The elastic adjustment element 31 engages with the adjustment hole 12 on the faceplate 1 by elastic force.

[0052] When the elastic adjusting member 31 is pressed, lifted, or pushed, the adjusting hole 12 of the elastic adjusting member 31 disengages, pushing the entire sliding adjusting bead 3 to slide within the housing 1. When the elastic adjusting member 31 is pressed or lifted, it disengages from the adjusting hole 12 by external force overcoming the elastic force acting on the elastic adjusting member 31 itself. After disengagement, the elastic adjusting member 31 can move left and right, pushing the sliding adjusting bead 3 to slide left and right within the receiving groove 11 of the housing 1. As an embodiment, such as... Figure 3 As shown in the diagram, in this embodiment, pressing down on the elastic adjusting member 31 disengages it from the adjusting hole 12 of the faceplate 1. Then, while maintaining the pressure on the elastic adjusting member 31, push it to the right, causing the entire sliding adjusting bead 3 to slide to the right within the faceplate 1. After sliding to the appropriate position, release the pressure on the elastic adjusting member 31. The elastic adjusting member 31, under its own elastic force, springs upward and engages with a new adjusting hole 12, thus securing it. Figure 3 As shown, the second strap connection part 301 at the right end of the sliding adjustment bead 3 is relative to... Figure 2 The greater distance from the left end of the case 1 allows for adjustments to lengthen or enlarge the watch band. Conversely, to shrink the watch band, press the elastic adjustment element 31 and then push the entire sliding adjustment bead 3 to the left, allowing it to slide within the case 1.

[0053] Before adjusting the length of the watch strap loop, the extension buckle 100 of this embodiment needs to open the buckle 2 first. After opening the buckle 2, the buckle 2 can be closed. Then, the sliding adjustment can be completed by pressing and pushing the elastic adjustment member 31 with one hand. The adjustment operation is convenient and quick, unlike the prior art where two hands are needed to operate after opening the buckle to complete the length adjustment.

[0054] Preferably, such as Figure 4 As shown, in this embodiment, the two inner sidewalls of the faceplate 1 are respectively provided with detachable toothed plates 5, and the toothed plates 5 are provided with the adjustment holes 12. The two toothed plates 5 are respectively fixed to the inner sidewalls of the two sides of the faceplate 1 by screws 6. In this way, if the adjustment holes 12 are worn during long-term use, only the toothed plates 5 need to be replaced, without replacing the entire faceplate 1.

[0055] Furthermore, such as Figure 2 and Figure 3 As shown, the extension buckle 100 in this embodiment also includes a buckle locking part 4. The buckle locking part 4 is housed within the faceplate 1, and the buckle locking part 4 can be locked to the buckle 2 or unlocked. Figure 1 As shown, when the buckle locking part 4 is locked with the buckle 2, the buckle 2 covers the buckle locking part 4 and the sliding adjusting bead 3; as Figure 2 and Figure 3As shown, when the buckle locking part 4 is unlocked and disengaged from the buckle 2, the buckle 2 can rotate relative to the face shell 1 to expose the sliding adjustment bead 3 and the buckle locking part 4.

[0056] In this embodiment, the extension buckle 100 is also specially provided with a buckle locking part 4 inside the face shell 1 for locking or unlocking the buckle 2. Only when the buckle 2 is unlocked and disengaged from the buckle locking part 4 can the buckle 2 rotate relative to the face shell 1. This strengthens the firmness and stability of the buckle 2 after it is folded and stored inside the face shell 1.

[0057] Specifically, such as Figure 5 As shown, the buckle 2 in this embodiment includes an inner fork plate 21 disposed in the middle, outer fork plates 22 disposed on both sides of the inner fork plate 21, a first connecting shaft 23 through which one end of the two outer fork plates 22 passes, and a second connecting shaft 24 through which the other end of the two outer fork plates 22 and one end of the inner fork plate 21 pass. The two ends of the first connecting shaft 23 are fixed to the face shell 1, and the lock head 211 is disposed at the bottom of the inner fork plate 21. In this embodiment, the lock head 211 is disposed on the side of the inner fork plate 21 near the first connecting shaft 23. At the same time, a first strap connecting block 212 is disposed at the left end of the inner fork plate 21, and a first strap connecting part 201 is disposed on the first strap connecting block 212. In this embodiment, the first strap connecting part 201 is a through hole that passes through the first strap connecting block 212. In this embodiment, the lock head 211 is used to engage and fix with the lock hole 411 on the buckle locking part 4. The two ends of the first connecting shaft 23 are fixed on the face shell 1 so that the entire buckle 2 can rotate relative to the face shell 1, while the second connecting shaft 24 allows the inner fork plate 21 to rotate relative to the two outer fork plates 22.

[0058] like Figures 6 to 8 As shown, the locking part 4 in this embodiment includes a locking box 41, a first button 42 and a second button 43 disposed inside the locking box 41 and exposed from both sides of the locking box 41, and a locking hole 411 extending vertically through the surface of the locking box 41. Figure 7 As shown, a portion of the first button 42 and the second button 43 are located inside the button box 41, while the other portion protrudes from the side of the button box 41. The first button 42 and the second button 43 are slidable within the button box 41 to lock or unlock the locking head 211 on the latch 2.

[0059] In this embodiment, a locking hole 411 extends vertically through the surface of the pressing box 41 for inserting the lock head 211. The pressing box 41 includes an upper box body 412 and a lower box body 413 that are closed together. The locking hole 411 extends vertically through the upper box body 412 and the lower box body 413. The openings on both sides of the pressing box 41 are used to insert the first button 42 and the second button 43. The first button 42 and the second button 43 form a locking opening 401 with an adjustable size inside the pressing box 41. When the first button 42 and the second button 43 are pressed into the pressing box 41, the locking opening 401 enlarges, and when the first button 42 and the second button 43 move outward away from the pressing box 41, the locking opening 401 shrinks.

[0060] like Figure 8 As shown, the locking head 211 on the buckle 2 is inserted into the lock hole 411 and locked with the first button 42 and the second button 43. At this time, after the locking head 211 is inserted into the lock hole 411 of the button box 41, it is clamped by the locking opening 401 formed by the first button 42 and the second button 43, thus locking the entire buckle. When the first button 42 and the second button 43 are pressed into the button box 41, the locking opening 401 widens, and the locking head 211 can be unlocked through the locking opening 401.

[0061] Specifically, such as Figure 7 As shown, both the first button 42 and the second button 43 include a button portion 44, a limiting portion 45, and a hook portion 46 connected in sequence. Figure 4 As shown, button holes 14 are provided on both sides of the faceplate 1. The button part 44 passes through the side wall of the button box 41 and protrudes from the button hole 14. The button part 44 protrudes from the side of the faceplate 1, which facilitates the unlocking of the buckle 2 on the one hand, and avoids the button structure from interfering with the buckle 2 on the other hand.

[0062] In this embodiment, the limiting part 45 is provided with a limiting groove 451, and the button box 41 is vertically provided with a limiting rod 48, which passes through the limiting groove 451. The cooperation between the limiting rod 48 and the limiting groove 451 restricts the sliding of the button in both left and right directions within the button box 41, while preventing the button from falling out of the button box 41. In this embodiment, the lower box body 413 is provided with a mounting hole 4131 for mounting and fixing the limiting rod 48.

[0063] like Figure 6 As shown, the hooks 46 of the first button 42 and the second button 43 are cross-shaped and slidable to engage with or disengage from the lock head 211. That is, the hooks 46 of the first button 42 and the second button 43 are as follows: Figure 6 When the two buttons are placed in a crisscross pattern, they form a lock opening 401. When the first button 42 and the second button 43 are moved, the size of the lock opening 401 changes, thus locking or releasing the lock head 211.

[0064] Preferably, in this embodiment, both the first button 42 and the second button 43 also include a spring 47. The spring 47 is disposed in the limiting groove 451. One end of the spring 47 passes to the limiting rod 48, and the other end abuts against the inner wall of the limiting groove 451. The arrangement of the spring 47 enables the lock 401 in the initial state to lock the lock head 211, and enables the first button 42 and the second button 43 to automatically reset after being pressed and released.

[0065] Preferably, the hooks 46 of the first button 42 and the second button 43 in this embodiment are L-shaped, which makes it easy for the hooks 46 of the two buttons to be placed crosswise. At the same time, the hooks 46 are provided with guide slopes, which makes it easy for the lock head 211 to be inserted into the lock hole 401.

[0066] like Figures 9 to 11 As shown, the sliding adjustment bead 3 in this embodiment also includes a base 32, on which a pressing groove 321 is provided. A second strap connecting block 324 is provided at the right end of the base 32 in this embodiment, and a second strap connecting portion 301 is provided on the second strap connecting block 324. In this embodiment, the second strap connecting portion 301 is a through hole that passes through the second strap connecting block 324.

[0067] like Figure 10 As shown, the elastic adjusting member 31 includes a pressing block 311, an elastic member 312, and a connecting member 313. Locking pieces 3111 protrude from both ends of the pressing block 311. The connecting member 313 movably connects the pressing block 311 to the pressing groove 321. Figure 11 As shown, the two ends of the elastic member 312 abut against the inner wall of the pressing block 311 and the pressing groove 321 respectively. After the elastic member 313 lifts up the pressing block 311, the locking piece 3111 of the pressing block 311 can be embedded in the adjusting hole 12.

[0068] like Figure 10 and Figure 11 As shown, the top of the connector 313 is threaded, the middle is a rod 3131, and the bottom is a cap. The outer diameter of the cap is larger than that of the rod 3131. The bottom surface of the pressing block 311 has a screw hole 3112, and the bottom wall of the pressing groove 321 has a stepped hole 3211. After the connector 313 passes through the stepped hole 3211, its top extends into the pressing groove 321 and is threadedly connected to the screw hole 3112 of the pressing block 311. The rod 3131 of the connector 313 and the stepped hole 3211 are clearance fit, so the connector 313 can still move up and down in the stepped hole 3211 after it is connected to the pressing block 311.

[0069] Meanwhile, a first spring hole 3113 is provided on the bottom surface of the pressing block 311, and a second spring hole 3212 is provided on the bottom wall of the pressing groove 321. In this example, the elastic element 312 is a spring, and its two ends are located in the first spring hole 3113 and the second spring hole 3212, respectively. This allows the elastic element 312 to lift the pressing block 311 in its natural state, creating a gap between the bottom surface of the pressing block 311 and the bottom wall of the pressing groove 321. At the same time, the locking pieces 3111 at both ends of the pressed block 311 in the lifted state are respectively embedded into the adjustment holes 12 corresponding to the toothed plates 5 on both sides of the face shell 1, so that the entire sliding adjustment bead 3 is locked and fixed in the storage groove 11 of the face shell 1. In this embodiment, the seat 32 has locking piece grooves 323 on both sides of the pressing groove 321 for accommodating the locking pieces 3111.

[0070] Preferably, in this embodiment, two sets of connecting members 313 and elastic members 312 are provided separately in the pressing groove 321, so that the bottom surface of the pressing block 311 is subjected to balanced force, which makes it easy to press.

[0071] Preferably, the sliding adjusting bead 3 in this embodiment further includes a guide slide rod 33 that extends laterally through the seat 32; as shown Figure 4 As shown, the inner wall of the faceplate 1 is also provided with a guide groove 13, and the guide slide rod 33 slides within the guide groove 13. In this embodiment, a slide rod hole 322 is transversely provided on the base 32, and sliding heads 331 are provided at both ends of the guide slide rod 33. After the guide slide rod 33 passes through the slide rod hole 322 into the base 32, the sliding heads 331 are exposed at both ends. The sliding heads 331 extend into the guide groove 13 of the faceplate 1. In this way, when the entire sliding adjustment bead 3 slides within the faceplate 1, it can slide smoothly with the cooperation of the sliding heads 331 and the guide groove 13.

[0072] This embodiment also proposes a watch (not shown) that includes the aforementioned adjustable strap loop length extension buckle 100. Since the watch has the aforementioned extension buckle 100 structure, it has the aforementioned beneficial effects of the extension buckle 100, which will not be described in detail here.

[0073] The above description is merely an example to clearly illustrate the present utility model and is not intended to limit the patent scope of the present utility model. It is impossible to exhaustively list all the embodiments here. All equivalent structural transformations made using the content of the technical solution of the present utility model under the concept of the present utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An extender for adjustable watchband length, characterized in that, The watch includes a face shell, a buckle and a sliding adjustment bead accommodated in the face shell, the buckle and the sliding adjustment bead are respectively connected with a watchband; The buckle covers the sliding adjustment bead and is rotatably connected with the face shell; The sliding adjustment bead includes an elastic adjustment member, the inner side of the face shell is continuously provided with a plurality of adjustment holes, the elastic adjustment member is clamped with one of the adjustment holes, the elastic adjustment member is pressed or lifted and pushed, the elastic adjustment member is separated from the adjustment hole and pushes the whole sliding adjustment bead to slide in the face shell.

2. The adjustable bracelet length extender of claim 1, wherein, The extension buckle further includes a buckle locking part; The buckle locking part is accommodated in the face shell, the buckle locking part is lockably connected with the buckle or is unlocked and separated from the buckle; When the buckle locking part is lockably connected with the buckle, the buckle covers the buckle locking part and the sliding adjustment bead; When the buckle locking part is unlocked and separated from the buckle, the buckle can be rotated relative to the face shell to expose the sliding adjustment bead and the buckle locking part.

3. The adjustable bracelet length extender of claim 1, wherein, The sliding adjustment bead further includes a seat body, the seat body is provided with a pressing groove; The elastic adjustment member includes a pressing block, an elastic member and a connecting member, the both ends of the pressing block are provided with locking pieces; The connecting member movably connects the pressing block in the pressing groove, the both ends of the elastic member abut against the pressing block and the inner wall of the pressing groove respectively, the locking pieces of the pressing block can be embedded in the adjustment hole after the elastic member lifts the pressing block.

4. The adjustable bracelet length extender of claim 3, wherein, The sliding adjustment bead further includes a guide sliding rod transversely arranged on the seat body; The inner wall of the face shell is further provided with a guide groove, the guide sliding rod slides in the guide groove.

5. The adjustable bracelet length extender of claim 2, wherein, The buckle locking part includes a pressing box, a first key and a second key arranged in the pressing box and exposed from both sides of the pressing box, the surface of the pressing box is vertically provided with a lock hole; The side of the buckle facing the pressing box is provided with a lock head, the lock head is inserted into the lock hole and is locked with the first key and the second key.

6. The adjustable bracelet length extender of claim 5, wherein, The buckle includes an inner fork plate arranged in the middle, outer fork plates arranged on both sides of the inner fork plate, a first connecting shaft penetrating one end of the two outer fork plates, a second connecting shaft penetrating the other end of the two outer fork plates and one end of the inner fork plate, the both ends of the first connecting shaft are fixed on the face shell, and the bottom of the inner fork plate is provided with the lock head.

7. The adjustable bracelet length extender of claim 5, wherein, The first key and the second key each include a key part, a limiting part and a hook part connected in sequence; Both side walls of the face shell are provided with key holes, the key part penetrates the side wall of the pressing box and is exposed from the key hole; The limiting part is provided with a limiting sliding groove, and a limiting rod is vertically arranged on the pressing box and penetrates the limiting sliding groove; The hook parts of the first key and the second key are cross arranged and are slidable to be locked with the lock head or to be separated from the lock head.

8. The adjustable bracelet length extender of claim 7, wherein, The hook part is L-shaped.

9. The adjustable bracelet length extender of claim 1, wherein, Both inner side walls of the face shell are respectively provided with detachable tooth plates, and the tooth plates are provided with the adjustment holes.

10. A watch characterized in that, The extension buckle for adjusting the length of the watchband ring includes the buckle as claimed in any one of claims 1-9.