A quick assembly watch with adjustable band length
By using the sliding fit between the main strap and the adjustment strap, and the elastic snap-fit component, the problem of traditional watch strap adjustment requiring tools is solved, enabling tool-free quick adjustment and assembly, thus improving the convenience and flexibility of watch use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUNAN HUAXU TECHNOLOGY CO LTD
- Filing Date
- 2026-04-16
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional watch strap length adjustment requires tools, which is cumbersome and lacks flexibility, making it impossible to quickly adjust and assemble the strap without tools.
The main strap and the adjustment strap slide together, and the strap length can be adjusted in stages through the adjustment head and the fixing parts. The elastic snap-fit components enable quick assembly and disassembly, including the design of the snap-fit components and the positioning pins.
It enables tool-free, quick adjustment and locking of the watch strap length, improving the watch's flexibility and convenience, and simplifying the assembly process.
Smart Images

Figure CN122096535A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of watch technology, specifically to a quick-assembly watch with an adjustable strap length. Background Technology
[0002] Traditional watch strap length adjustment typically relies on two methods: one is by adding or removing the number of strap links, which requires special tools to remove the spring bars, making the process cumbersome and prone to scratching the strap; the other is by using the micro-adjustment holes on the clasp for limited adjustment, but the adjustment range is small. In addition, regardless of the method, the assembly process is equally complicated when the strap needs to be completely removed for cleaning, replacement, or to fit different wearers. There is a lack of a quick, tool-free disassembly and assembly mechanism, which results in a poor user experience and insufficient flexibility when adjusting the strap in daily life according to changes in wrist size, seasonal changes, or matching needs.
[0003] Therefore, there is an urgent need for a watch strap structure that can achieve tool-free, quick length adjustment and support quick assembly and disassembly to solve the problems of inconvenient adjustment and cumbersome assembly and disassembly of existing watch straps. Summary of the Invention
[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a quick-assembly watch with an adjustable strap length, solving the problem that adjusting the strap length of existing watches requires tools and is inconvenient.
[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a quick-assembly watch with an adjustable strap length, comprising a watch face and a strap detachably connected to the watch face, the strap comprising: The main belt body is provided with a sliding cavity and positioning holes distributed along the length direction of the main belt body; An adjusting belt, which is slidably inserted into the sliding cavity; An adjustment head is connected to one end of the adjustment band and is used to drive the adjustment band to slide relative to the main band body to change the overall length of the watch band; A fastener is provided, which, after the adjustment strap has slid to the desired position, passes through the positioning hole on the main strap body to lock the strap length.
[0006] In some embodiments, a snap-fit component is further included, which is disposed at one end of the adjustment band near the dial and is used to elastically snap onto the dial.
[0007] In some embodiments, the snap-fit component includes: A pair of lugs, the pair of lugs being disposed on the dial; A slot is formed on the sidewall of the lug; A sleeve, the sleeve being connected to the adjusting band; A spring, the spring being housed within the sleeve; and A locking tongue, which is housed within the sleeve and connected to the spring, the spring being configured to apply an elastic force toward the locking tongue; When the latch reaches the slot position of the lug, it engages with the slot under the action of the spring.
[0008] In some embodiments, the mating surfaces of the latch and the slot are mutually matching bevels.
[0009] In some embodiments, one end of the adjusting belt is provided with a connecting hole, and the adjusting head is inserted into the connecting hole so that the adjusting head can drive the adjusting belt to move synchronously.
[0010] In some embodiments, the fixing member is a positioning pin, and the adjusting head is provided with a mounting hole for installing the positioning pin.
[0011] In some embodiments, the main belt body has a guide groove along the sliding direction of the adjustment belt, and the adjustment head can slide along the guide groove.
[0012] (III) Beneficial Effects The beneficial effects of this invention are as follows: The adjustable watchband of this invention, through the sliding cooperation between the main strap and the adjustment strap, achieves graded adjustment of the watchband length. Users can easily change the watchband length simply by sliding the adjustment head, without any tools, making operation simple. After adjustment, the watchband is securely locked by inserting the fixing piece into the positioning hole, preventing accidental slippage during use. In addition, the elastic snap-fit component enables quick assembly and disassembly between the watchband and the watch face. Locking or releasing can be completed simply by pressing, improving the flexibility and convenience of using the watch. The overall structural design is ingenious, integrating quick adjustment and quick assembly functions, effectively solving the problem of inconvenient adjustment and disassembly of traditional watchbands. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of the present invention.
[0014] Figure 2 This is a side view of the structure of the present invention.
[0015] Figure 3 This is a schematic diagram of the installation structure of the main belt and the adjustment belt of the present invention.
[0016] Figure 4 This is a schematic diagram of the installation structure of the fastener of the present invention.
[0017] Figure 5 This is a schematic diagram illustrating the disassembly process of the watch strap of the present invention.
[0018] Figure 6 This is a schematic diagram of the snap-fit assembly of the present invention.
[0019] In the diagram: 1. Main strap; 2. Adjusting strap; 3. Adjusting head; 4. Fixing component; 5. Locking tongue; 6. Spring; 7. Sleeve; 8. Dial; 9. Lug; 10. Slot. Detailed Implementation
[0020] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0021] The quick-assembly watch with adjustable strap length proposed in this embodiment of the invention uses a length adjustment mechanism consisting of a sliding adjustable strap and a main strap body with positioning holes, and is equipped with an elastic snap-fit component. This design aims to enable users to quickly and intuitively adjust the strap length and complete the strap assembly without tools.
[0022] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.
[0023] Please see Figure 1-3 The present invention provides a technical solution: a quick-assembly watch with adjustable strap length, including a dial 8 and a detachable strap.
[0024] The watch strap includes the main strap body 1, the adjustment strap 2, the adjustment head 3, and the fastener 4.
[0025] The main belt 1 is a long strip structure with a hollow sliding cavity inside along its length. Multiple positioning holes are spaced apart on the side wall or top surface of the main belt 1 along its length.
[0026] The adjusting belt 2 is a strip-shaped component that is slidably inserted into the sliding cavity of the main belt body 1.
[0027] The adjustment head 3 is connected to one end of the adjustment belt 2 that extends into the main belt body 1.
[0028] The fastener 4 is a separate part used to insert into the positioning hole to achieve positioning.
[0029] This invention provides a quick-assembly watch with an adjustable strap length. During operation, when the strap length needs to be adjusted to fit different wrist sizes, the user simply moves or pushes the adjustment head 3. The adjustment head 3 causes the adjustment strap 2 to slide within the sliding cavity of the main strap body 1, thereby changing the length of the adjustment strap 2 extending beyond the main strap body 1, and thus altering the effective circumference of the entire strap. Once the strap reaches a comfortable position, the fixing member 4 is inserted into the currently aligned positioning hole on the main strap body 1. The fixing member 4 passes through the positioning hole, preventing the adjustment strap 2 from sliding further and locking the strap length. This adjustment process requires no tools and is intuitive and quick.
[0030] In some embodiments, a snap-fit component is also included, which is disposed at one end of the adjustment band 2 near the dial 8.
[0031] The snap-fit assembly enables quick connection and disconnection between the watch strap and the dial 8, replacing the traditional spring bar structure.
[0032] In some embodiments, the snap-fit assembly includes a pair of lugs 9, a slot 10, a sleeve 7, a spring 6, and a locking tongue 5.
[0033] A pair of lugs 9 are fixedly connected to both sides of the dial 8, and are protruding lugs extending to the side.
[0034] The slot 10 is a notch formed on the inner wall of the lug 9.
[0035] The sleeve 7 is a tubular shell that is fixedly connected to the end of the adjusting belt 2.
[0036] Both the spring 6 and the locking tongue 5 are housed in the internal cavity of the sleeve 7.
[0037] The latch 5 is connected to the spring 6, which provides a spring force to the latch 5 that always points outward from the sleeve 7. The direction of this spring force is toward the slot 10 on the lug 9.
[0038] like Figure 5 , Figure 6 As shown, when the watch strap needs to be installed, the sleeve 7 at the end of the adjusting strap 2 is aligned with the gap between the lugs 9 and pushed in. When the locking tongue 5 contacts the edge of the lug 9, it will be pressed into the sleeve 7. When it is pushed further in until the locking tongue 5 is aligned with the slot 10 on the lug 9, the elastic force of the spring 6 will pop out the locking tongue 5 and lock it into the slot 10, thus completing the quick installation of the watch strap. When disassembling, simply push the locking tongue 5 upward to retract it and disengage it from the slot 10, and the watch strap can be pulled out from the lug 9. This structure realizes tool-free quick installation and disassembly.
[0039] In some embodiments, the mating surfaces of the locking tongue 5 and the slot 10 are mutually matching bevels.
[0040] Specifically, the end of the latch 5 is made into a bevel, and the upper edge of the slot 10 is also made into a corresponding guide bevel.
[0041] In some embodiments, one end of the adjustment belt 2 is provided with a connection hole.
[0042] The adjusting head 3 is provided with a plug part that matches the shape of the connecting hole. The plug part is inserted into the connecting hole and the two are fixedly connected by interference fit, adhesive or pin.
[0043] This plug-in structure allows the adjusting head 3 to be firmly connected to the adjusting belt 2, ensuring that the adjusting belt 2 can be reliably driven to move synchronously when the adjusting head 3 is pulled.
[0044] like Figure 4 As shown, in some embodiments, the fixing element 4 is a positioning pin.
[0045] The adjusting head 3 is provided with a mounting hole perpendicular to the sliding direction.
[0046] When the adjusting belt 2 slides to the desired position, the positioning pin on the adjusting belt 2 will align with a positioning hole on the main belt body 1.
[0047] At this point, the positioning pin is passed through the positioning hole of the main belt 1 to achieve locking, fix the position of the adjusting belt 2, prevent it from moving, and ensure reliable locking.
[0048] In some embodiments, the main belt 1 has an elongated guide groove along its length.
[0049] The insertion part of the adjusting head 3 is nested in the guide groove and can slide along the guide groove.
[0050] The guide groove provides precise guidance for the movement of the adjustment head 3, preventing it from swaying; it also limits the vertical displacement of the adjustment head 3, making the connection between the adjustment head 3 and the main belt 1 more stable and the appearance smoother.
[0051] In some embodiments, the main strap 1 can be made of a soft material to automatically adapt to the shape of the wrist, or it can be made of a hard material molded to fit the shape of the wrist, and then a soft pad is glued to the inner ring to increase comfort.
[0052] In some embodiments, the adjustment band 2 can be made of either a soft material or a sheet of rigid material, utilizing the elasticity of the sheet to adapt to the shape of the wrist.
[0053] In some embodiments, the adjusting head 3 and the fixing member 4 are determined according to the material properties of the main belt 1 and the adjusting belt 2: if the main belt 1 and the adjusting belt 2 are made of rigid materials, the adjusting head 3 and the fixing member 4 can be made of soft materials so as to play a fixing role through the positioning hole; if the main belt 1 and the adjusting belt 2 are made of soft materials, the adjusting head 3 and the fixing member 4 can be made of rigid materials so as to play a fixing role through the positioning hole.
[0054] In some embodiments, when the main strap 1 is made of iron, the fastener 4 can be removed, and a strong magnet can be embedded in the adjustment head 3 to fix the main strap 1 and the adjustment strap 2 by relying on magnetic force, thereby fixing the strap length.
[0055] The working process of this device is as follows: when a user receives a new watch or needs to have it worn by someone else, the watch strap is first installed.
[0056] Align the sleeves 7 at both ends of the watch strap with the lugs 9 on both sides of the dial 8 and push them inward. The locking tongue 5 inside the sleeve 7 is compressed back under the action of the inclined surface. When the locking tongue 5 moves to align with the slot 10 on the lug 9, it quickly pops out and locks into the slot 10 under the action of the internal spring 6, and the watch strap is installed.
[0057] Then adjust the length.
[0058] According to the user's wrist size, pull the positioning pin to separate it from the positioning hole, and then slide the adjustment head 3 exposed outside the main belt body 1 by hand.
[0059] The adjusting head 3 drives the adjusting belt 2 to slide within the sliding cavity of the main belt body 1 through the insertion part.
[0060] Pulling the adjustment head 3 outwards lengthens the extended portion of the adjustment band 2, increasing the total circumference of the watch band; pushing the adjustment head 3 inwards retracts the adjustment band 2, decreasing its circumference.
[0061] Users can try on and slide the device repeatedly until they find the most comfortable position.
[0062] After determining the length, keep the adjusting head 3 stationary and observe which positioning hole on the main belt body 1 the mounting hole on the adjusting head 3 aligns with.
[0063] Press the positioning pin and insert it into the positioning hole on the main belt 1 until it is fully inserted.
[0064] At this time, the length of the adjusting belt 2, the main belt body 1 and the adjusting head 3 is fixed by interlocking through the positioning pin.
[0065] If you need to make a slight adjustment to the length during wearing, simply pull the positioning pin outward, slide the adjustment head 3 back to the new position, and then press the positioning pin until it is aligned with the new positioning hole.
[0066] To completely remove the watch strap for cleaning or replacement, simply push the adjustment strap 2 upwards while the strap is in the installed state. The locking tongue 5 inside the sleeves 7 on both sides will retract inwards due to the inclined surface, and the spring 6 will be compressed, eventually disengaging it from the slot 10 on the lug 9, allowing the entire watch strap to be removed from the dial 8.
[0067] The entire adjustment and assembly process of this watch requires no special tools, and is fast, intuitive, reliable, and easy to use.
[0068] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.
[0069] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0070] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," or "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0071] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0072] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A quick-assembly watch with an adjustable strap length, characterized in that, Includes a dial (8) and a watch strap detachably connected to the dial (8), the watch strap comprising: The main belt (1) is provided with a sliding cavity and positioning holes distributed along the length direction of the main belt (1); Adjustment belt (2), which is slidably inserted into the sliding cavity; Adjustment head (3), the adjustment head (3) is connected to one end of the adjustment band (2), and is used to drive the adjustment band (2) to slide relative to the main band body (1) to change the overall length of the watch band; The fastener (4) is used to pass through the positioning hole on the main strap body (1) after the adjustment strap (2) is slid to the desired position, so as to lock the strap length.
2. The quick-assembly watch with adjustable strap length according to claim 1, characterized in that, It also includes a snap-fit component, which is disposed at one end of the adjustment band (2) near the dial (8) for elastic snap-fit with the dial (8).
3. The quick-assembly watch with adjustable strap length according to claim 2, characterized in that, The snap-fit assembly includes: A pair of lugs (9) are provided on the dial (8); A slot (10) is formed on the side wall of the lug (9); Sleeve (7), the sleeve (7) being connected to the adjusting band (2); Spring (6), said spring (6) being housed within said sleeve (7); and A locking tongue (5), which is housed within the sleeve (7) and connected to the spring (6), which is configured to apply an elastic force toward the slot (10) to the locking tongue (5); When the latch (5) reaches the slot (10) of the lug (9), it is engaged in the slot (10) under the action of the spring (6).
4. The quick-assembly watch with adjustable strap length according to claim 3, characterized in that, The mating surfaces of the latch (5) and the slot (10) are mutually matching inclined surfaces.
5. The quick-assembly watch with adjustable strap length according to claim 1, characterized in that, One end of the adjustment belt (2) is provided with a connecting hole, and the adjustment head (3) is inserted into the connecting hole so that the adjustment head (3) can drive the adjustment belt (2) to move synchronously.
6. The quick-assembly watch with adjustable strap length according to claim 1, characterized in that, The fixing component (4) is a positioning pin, and the adjusting head (3) is provided with a mounting hole for installing the positioning pin.
7. The quick-assembly watch with adjustable strap length according to claim 1, characterized in that, The main belt (1) has a guide groove along the sliding direction of the adjusting belt (2), and the adjusting head (3) can slide along the guide groove.