Watchband connecting structure easy to disassemble and assemble

Abstract

The utility model relates to the technical field of watches, in particular to a watchband connecting structure easy to disassemble and assemble, which comprises a watch body and a watchband, an elastic protruding part is matched with an inclined guide surface, a composite coating is combined to reduce the friction coefficient and reduce the insertion resistance, and the watchband can be disassembled and assembled by rotating with a single hand. A dial wheel linkage elastic sheet structure realizes one-key unlocking, a compression spring is reset to ensure operation coherence, a high-frequency use scene is adapted, elastic attenuation of a spring bar is detected in real time through a micro piezoelectric sensor, a pressure threshold triggers an LED to give an alarm or an APP to push maintenance suggestions, disassembly and assembly times and a fatigue curve are recorded synchronously, and the maintenance accuracy is improved. A rib groove-rib safety mechanism locks the dial wheel when the watchband is bent, mistaken touch is prevented under the impact of external force, the wearing stability is improved, the watchband can be removed through reverse breaking during disassembly, and safety and convenience are both considered.

Description

Technical Field

[0001] The utility model relates to the technical field of watches, specifically an easily disassembled and assembled watch band connection structure. Background Art

[0002] In existing watches, the watch band and the watch body are generally connected by spring bars. The connection is achieved by the cooperation of the protruding connection ears on both sides of the watch body and the concentric holes at the ends of the watch band, which are fixed by spring bars. However, this structure has significant drawbacks: the spring bars need to be completely disassembled to replace the watch band, the operation is cumbersome and small parts are easily lost, resulting in a poor user experience; repeated disassembly and assembly cause wear of the connection ear jacks, leading to loosening and even the risk of the watch band falling off. These problems seriously restrict the durability and maintenance convenience of watches.

[0003] Currently, fast - disassembly technologies generally face the balance problem between "structural complexity" and "durability": simplifying the mechanical design easily leads to insufficient locking force, while strengthening the structure increases the volume and cost. At the same time, existing solutions are not adaptable enough to frequent disassembly and assembly. For example, metal pins are prone to corrosion and elastic elements have a short lifespan, making it difficult to meet the high - strength usage requirements of sports watches or smart wearable devices.

[0004] Therefore, there is an urgent need for a new connection structure that combines fast disassembly and assembly, high reliability, and low cost. By optimizing mechanical transmission and material adaptation, it is necessary to solve the core contradictions coexisting in traditional spring bars and fast - disassembly technologies. In view of this, the utility model proposes an easily disassembled and assembled watch band connection structure to solve the above - mentioned technical problems. Content of the Utility Model

[0005] In order to solve the deficiencies of the existing technology, the utility model provides an easily disassembled and assembled watch band connection structure, thus solving the problem that the current fast - disassembly technologies generally cannot balance "structural complexity" and "durability".

[0006] The technical solution adopted by the utility model to solve its technical problems is an easily disassembled and assembled watch band connection structure, which includes a watch body and a watch band. On both sides of the watch body, connection ears in the shape of a "C" - shaped protrusion are arranged along the radial position. The connection end of the watch band is detachably installed at the position of the connection ears. In addition, it also includes spring bars.

[0007] The spring bars are movably installed at the ends of the watch band, and protruding parts are elastically slidably arranged at both ends of the spring bars. The protruding parts are slidably embedded into the concentric circular holes symmetrically opened on the connection ears and in the middle of the watch band.

[0008] Preferably, a micro - piezoelectric sensor is fixedly installed on the inner side of the connection ears, which directly contacts the elastic protruding parts of the spring bars.

[0009] Preferably, an inclined guiding surface for facilitating the entry of the spring bars is provided on the end face part of the connection ears.

[0010] Preferably, the guiding surface is coated with a composite coating that combines a diamond-like carbon-based coating (hardness ≥ 000HV) with a molybdenum disulfide lubricating layer.

[0011] Preferably, the connecting ear has a paddle groove in the middle, and a spring is movably installed in the paddle groove, with the side wall of the spring contacting the protrusion of the spring bar.

[0012] Preferably, a dial is rotatably mounted in the middle of the connecting ear, and a compression spring for controlling the torsion angle is connected between the dial and the connecting ear, with one end of the spring piece sliding against the side wall of the dial.

[0013] Preferably, the spring is an "L"-shaped structure made of tough material, with one end of the spring near the spring bar fixed, and its sidewalls fitting against the inner wall of the ear when the spring is not under force.

[0014] Preferably, the dial wheel has recessed grooves symmetrically formed along its radial direction on its arc-shaped sidewall, and the movable end of the spring slides into the groove when the dial wheel rotates.

[0015] Preferably, the dial has a rib groove on the side facing the watch strap, and the connecting end of the watch strap has a rib protruding outward in the middle to cooperate with the rib groove. When the watch strap is horizontally unfolded, the rib and the rib groove do not contact each other.

[0016] Preferably, the outer circumferential wall of the dial is uniformly provided with damping grooves to enhance the turning friction.

[0017] The beneficial effects of this utility model are:

[0018] 1. Efficient assembly and disassembly with improved durability

[0019] The flexible protrusions and inclined guide surfaces work together, combined with a composite coating to reduce the coefficient of friction and insertion resistance, allowing for easy assembly and disassembly with a single hand rotation. A dial-linked spring mechanism enables one-button unlocking, while a compression spring ensures smooth operation, making it suitable for high-frequency use.

[0020] 2. Intelligent monitoring and security assurance

[0021] A miniature piezoelectric sensor monitors the spring bar elasticity attenuation in real time. Pressure thresholds trigger LED alarms or app-push maintenance suggestions, while simultaneously recording the number of disassembly / reassembly cycles and fatigue curves. The ribbed safety mechanism locks the dial when the strap bends, preventing accidental activation under external impact and improving wearing stability. It can be released by simply bending it in the opposite direction during disassembly, balancing safety and convenience.

[0022] 3. Human-computer interaction and cost optimization

[0023] The damping groove design enhances the feedback of the dial operation and reduces the probability of slippage; the modular spring and spring bar structure allows for independent replacement, reducing maintenance costs. The sensor is powered only when locked, resulting in low standby power consumption and compatibility with low-power smartwatches. The overall cost is lower than traditional quick-release solutions, making it suitable for mass production. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a schematic diagram of the overall connection structure between the watch body and the watch strap in this utility model;

[0026] Figure 2 for Figure 1 Enlarged diagram of point A in the diagram;

[0027] Figure 3 This is a schematic diagram showing the positional relationship between the connecting ear and the watch strap in this utility model;

[0028] Figure 4 for Figure 3 Enlarged diagram of point B in the diagram;

[0029] Figure 5 This is a schematic diagram showing the positional relationship between the dial and the watch body in this utility model;

[0030] Figure 6 for Figure 5 Enlarged diagram of point C in the diagram;

[0031] Figure 7 for Figure 5 Enlarged diagram of point D in the diagram;

[0032] In the picture:

[0033] 1. Watch body; 2. Watch strap; 3. Connecting lug; 4. Spring bar; 41. Protrusion; 31. Miniature piezoelectric sensor; 32. Guide surface; 33. Shifter slot; 34. Spring; 35. Shifter wheel; 36. Compression spring; 37. Gear groove; 38. Rib groove; 21. Rib; 39. Damping groove. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0035] This utility model embodiment provides an easy-to-disassemble watch strap connection structure, solving the problem of the inability to balance "structural complexity" and "durability" that is commonly faced by current quick-release technologies.

[0036] like Figure 1 and Figure 3As shown in the figure, a preferred embodiment of the present utility model proposes an easily disassembled and assembled watchband connection structure, including a watch body 1 and a watchband 2. On both sides of the watch body 1, connecting ears 3 in the shape of a "C" - shaped protrusion are arranged along the radial position thereof. The connecting ends of the watchband 2 are detachably installed at the positions of the connecting ears 3. In addition, there is also a spring bar 4.

[0037] Furthermore, as Figures 1 to 3 shown, the spring bar 4 is movably installed at the end of the watchband 2. Elastic protrusions 41 are slidably arranged at both ends of the spring bar 4, and the protrusions 41 are slidably embedded into concentric circular holes symmetrically opened on the connecting ears 3 and in the middle of the watchband 2.

[0038] A micro - spring is内置 in the spring bar 4, and the end of the protrusion 41 is fixedly connected to the micro - spring. During the installation process, the protrusion 41 can be completely retracted to the inside of the middle tube of the spring bar 4.

[0039] Furthermore, as Figure 7 shown, a micro - piezoelectric sensor 31 is fixedly installed inside the connecting ear 3, directly contacting the elastic protrusion 41 of the spring bar 4.

[0040] The内置 micro - piezoelectric sensor 31 can monitor the extrusion force formed by the protrusion 41 extending outwards, and then judge the fatigue degree of the micro - spring inside the spring bar 4 and the coaxiality between the protrusion 41 and the spring bar 4. When the spring bar 4 undergoes multiple disassembly and assembly operations, its elasticity decreases, and with the pulling effect during the user's wearing process, the spring bar 4 itself will generate fatigue deformation, which will lead to inaccurate positioning and insecure connection of the protrusion 41 during the actual installation process. Therefore, monitoring and displaying the end - face pressure after its installation helps to determine the threshold value for the maintenance and repair period. When the pressure is insufficient, an alarm will be triggered by the LED flashing on the watch dial.

[0041] In addition, a Bluetooth module can be内置 in the watch to synchronize data to the mobile APP, record the number of uses, the elastic attenuation curve, and push maintenance suggestions. The sensor is only powered on during the locking operation, with low power consumption during daily standby, and is adapted to the power system of the smart watch.

[0042] Furthermore, as Figure 2 and Figure 3 shown, an inclined guiding surface 32 for facilitating the entry of the spring bar 4 is opened on the end - face part of the connecting ear 3, and a composite coating combining a diamond - like carbon - based coating with a hardness ≥ 3000HV and a molybdenum disulfide lubricating layer is coated on the position of the guiding surface 32.

[0043] When the spring bar 4 is inserted, it rotates and slides into the guide groove in the guide surface 32, which is converted into axial propulsion force, reducing lateral friction. The end of the guide groove is aligned with the locking position to ensure precise locking. In addition, the design of the guide surface 32 can also disperse the radial impact force during insertion, avoid local stress concentration, reduce insertion resistance, and improve the ease of installation of the watch strap 2.

[0044] Furthermore, such as Figures 5 to 7 As shown, a paddle groove 33 is provided in the middle of the connecting ear 3, and a spring piece 34 is movably installed in the paddle groove 33. The side wall of the spring piece 34 contacts the protrusion 41 of the spring bar 4.

[0045] During daily use, the protrusion 41 is embedded in the built-in hole groove of the connecting ear 3 to achieve locking and fixation. When it is necessary to remove the watch strap 2, the protrusion 41 is gradually retracted and its locking effect is released by moving the spring 34, and then the watch strap 2 can be removed.

[0046] Furthermore, such as Figures 4 to 6 As shown, a dial 35 is rotatably mounted in the middle of the connecting ear 3. A compression spring 36 that controls the torsion angle is connected between the dial 35 and the connecting ear 3. One end of the spring piece 34 slides against the side wall of the dial 35. The spring piece 34 is an "L"-shaped structure made of tough material. The end of the spring piece 34 near the spring bar 4 is fixed. When the spring piece 34 is not under force, its side wall is in contact with the inner side wall of the connecting ear 3. The arc side wall of the dial 35 is symmetrically provided with recessed toothed grooves 37 along its radial direction. When the dial 35 rotates, the movable end of the spring piece 34 slides into the toothed groove 37.

[0047] To further enhance the convenience of removing the watch strap 2, a deflector 35 is introduced. In the initial position, the movable end of the spring 34 contacts the arc-shaped outer wall of the deflector 35. At this time, the spring 34 is tilted near the protrusion 41. When the watch strap 2 needs to be removed, the user turns the deflector 35, which in turn drives the toothed groove 37 to rotate. At this time, the movable end of the spring 34 gradually slides into the toothed groove 37. Under the action of the recovery elasticity accumulated by the spring 34 during its own tough deformation, it produces an adaptive deflection and squeezes the protrusion 41 during the deflection process, causing it to gradually contract until the locking effect between it and the connecting lug 3 is released. Then the watch strap 2 is removed. Afterward, the action of turning the deflector 35 is released, and the deflector 35 resets itself under the action of the compression spring 36. The locking effect between the spring bar 4 and the connecting lug 3 can be released simultaneously by a single turn, which is convenient, quick and easy to operate.

[0048] Furthermore, such as Figure 3 and Figure 4 As shown, Figures 1 to 6As shown in the preferred embodiment of the present invention, the dial 35 has a rib groove 38 on the side facing the watch strap 2, and the connecting end of the watch strap 2 has a rib 21 that protrudes outward from the middle and cooperates with the rib groove 38. When the watch strap 2 is horizontally unfolded, the rib 21 does not contact the rib groove 38.

[0049] To prevent the watch strap 2 from coming loose due to accidental external force or a drop during daily use, a combination of rib groove 38 and rib 21 with safety measures is provided. When worn, the watch strap 2 is in an arc-shaped bent position. At this time, the rib 21 is embedded in the rib groove 38, and its embedding depth increases or decreases with the curvature of the watch strap 2 itself. When the two are engaged, the dial 35 cannot rotate, thus preventing the watch from accidentally coming loose and falling while the user is wearing it, improving safety and stability. When it is necessary to remove the watch strap 2, simply bend the watch strap 2 in the opposite direction to release the engagement between the rib 21 and the rib groove 38, and then proceed with the next disassembly operation, which is simple and convenient.

[0050] Furthermore, such as Figure 4 As shown, Figures 1 to 6 As shown in the preferred embodiment of this utility model, the outer circumferential wall of the dial 35 is uniformly provided with damping grooves 39 for enhancing the friction of the dial and improving the synchronization when the user dials the dial 35.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A detachable watch strap connection structure, comprising a watch body (1) and a watch strap (2), characterized in that, On both sides of the said watch body (1), connecting ears (3) in the shape of a "C"-shaped protrusion are arranged along the radial position thereof. The connecting ends of the watch band (2) are detachably installed at the positions of the connecting ears (3). In addition, there is also a spring bar (4). The spring bar (4) is movably installed at the end of the watch band (2). Elastic protrusions (41) are slidably arranged at both ends of the spring bar (4). The protrusions (41) are slidably embedded into concentric circular holes symmetrically opened in the middle of the watch band (2) on the connecting ears (3).

2. The easy-to-disassemble watch strap connection structure according to claim 1, characterized in that: A micro piezoelectric sensor (31) is fixedly installed inside the connecting ear (3) and directly contacts the elastic protrusion (41) of the spring bar (4).

3. The easy-to-disassemble watch strap connection structure according to claim 1, characterized in that: An inclined guiding surface (32) for facilitating the entry of the spring bar (4) is opened at the end face part of the connecting ear (3).

4. The easy-to-disassemble watch strap connection structure according to claim 3, characterized in that: A composite coating combining a diamond-like carbon-based coating and a molybdenum disulfide lubricating layer is coated at the position of the guiding surface (32).

5. The easy-to-disassemble watch strap connection structure according to claim 1, characterized in that: A dial groove (33) is opened in the middle of the connecting ear (3). A spring piece (34) is movably installed in the dial groove (33). The side wall of the spring piece (34) contacts the protrusion (41) of the spring bar (4).

6. The easy-to-disassemble watch strap connection structure according to claim 1, characterized in that: A dial wheel (35) is rotatably installed in the middle of the connecting ear (3). A compression spring (36) for controlling the torsion angle is connected between the dial wheel (35) and the connecting ear (3). One end of the spring piece (34) slidably abuts against the side wall of the dial wheel (35).

7. The easy-to-disassemble watch strap connection structure according to claim 6, characterized in that: The spring piece (34) is an "L"-shaped structure made of a ductile material. The end of the spring piece (34) close to the spring bar (4) is fixed. When the spring piece (34) is not stressed, its side wall fits against the inner wall side surface of the connecting ear (3).

8. The easy-to-disassemble watch strap connection structure according to claim 7, characterized in that: Depressed tooth grooves (37) are symmetrically opened along the radial direction at the arc side wall position of the dial wheel (35). When the dial wheel (35) rotates, the movable end of the spring piece (34) slides into the tooth grooves (37).

9. The easy-to-disassemble watch strap connection structure according to claim 6, characterized in that: A rib groove (38) is opened on the side of the dial wheel (35) facing the watch band (2). A rib (21) matched with the rib groove (38) is arranged in a convex manner in the middle of the connecting end of the watch band (2). When the watch band (2) is horizontally unfolded, the rib (21) does not contact the rib groove (38).

10. The easy-to-disassemble watch strap connection structure according to claim 6, characterized in that: Damping grooves (39) for enhancing the turning friction are evenly opened on the circumferential outer wall of the dial wheel (35).

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