Watchband buckle with anti-disassembly function
By designing a watchband buckle with anti-tampering function and utilizing a combination of U-shaped pieces and springs, the problem of easy detachment of smartwatch watchbands has been solved, achieving higher security and convenience, and making it suitable for location monitoring of children or elderly people with dementia.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN SANLUWU WULIAN TECH CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-05-15
AI Technical Summary
The buckle structure of existing smartwatches is simple, which can easily cause the upper and lower sections of the strap to separate, resulting in low security and making them particularly unsuitable for children or elderly people with dementia.
A watch strap buckle with anti-tamper function was designed. The combination structure of U-shaped piece, spring and unlocking component realizes locking and unlocking operation. The compression and reset mechanism of U-shaped piece ensures a stable connection of the watch strap.
It improves the security and convenience of smartwatches, prevents unauthorized unlocking, enhances the stability and lifespan of the watch band, and ensures reliable position monitoring when worn by children or elderly people with dementia.
Smart Images

Figure CN224234853U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of watch strap buckle technology, and in particular to a watch strap buckle with anti-tamper function. Background Technology
[0002] A smartwatch is a wearable smart device worn on the wrist. It not only has the timekeeping function of a traditional watch, but can also connect to a smartphone or operate independently, providing a variety of intelligent services such as health monitoring, communication, entertainment, and payment.
[0003] When children or elderly people with dementia wear smartwatches, the main purpose is to connect the smartwatch to a mobile phone for real-time location tracking, allowing the wearer to monitor the child's or elderly person's location at any time. The watch band on existing smartwatches typically consists of an upper band and a lower band. When wearing the watch, the upper band is usually inserted into the buckle on the lower band. The connection between the upper and lower bands is adjusted to a suitable size, and then the pin on the buckle is inserted into the connection hole on the upper band to complete the connection.
[0004] However, existing smartwatches simply use a buckle pin that plugs into a connection hole, resulting in a simple fixing structure. This makes it easy for the upper and lower sections of the watchband to separate, allowing the smartwatch to be removed. This makes it easy for children to remove the watch, meaning parents cannot guarantee they can know their child's location through the smartwatch, thus compromising the device's safety. Utility Model Content
[0005] To address the shortcomings of existing technologies, the purpose of this application is to provide a watch strap buckle with anti-tampering function, which solves the problem that the watch strap buckle's simple fixing structure for the upper and lower watch straps makes it easy to separate the upper and lower watch straps, resulting in low device security.
[0006] The above-mentioned objective of this application is achieved through the following technical solution: a watch strap buckle with anti-disassembly function, including a watch body, a base frame, a buckle face, and a fixing plate fixedly installed on the watch body, a rotating rod fixedly installed between the two sides of the base frame, the buckle face rotatably connected to the rotating rod, two placement slots symmetrically opened on the top surface of the fixing plate, springs fixedly connected in the two placement slots respectively, U-shaped pieces fixedly connected to the opposite ends of the two springs respectively, the bottom surfaces of the two U-shaped pieces slidably connected to the top surface of the fixing plate respectively, a connecting rod fixedly installed on the bottom surface of the base frame near the U-shaped pieces, a through hole opened on the top surface of the fixing plate, the connecting rod passing through the through hole, the connecting rod being located between the two U-shaped pieces, the sides of the two U-shaped pieces near the connecting rod conforming to the arc surface of the connecting rod, a connecting component for connecting the buckle face fixedly installed on the fixing plate, an insertion hole opened on the top surface of the buckle face and passing through the top surface of the buckle face, an unlocking component for abutting the two U-shaped pieces and compressing the springs on the U-shaped pieces in the insertion hole.
[0007] Furthermore, two fixing plates are fixedly connected to both ends of the connecting rod, and two U-shaped plates are located between the two fixing plates. The inner diameter of the fixing plates is smaller than the inner diameter of the through hole.
[0008] Furthermore, the top surface of the base frame is provided with an installation groove, and a bending spring is fixedly installed in the installation groove. The top surface of the bending spring is provided with two protrusions, and the tops of the two protrusions respectively abut against the bottom surface of the fixing plate.
[0009] Furthermore, connecting blocks are fixedly installed on the top surfaces of the two U-shaped pieces, and springs are sleeved on the outer periphery of the connecting blocks and fixedly connected.
[0010] Furthermore, the curved surfaces of the two springs respectively abut against the side walls of the two placement slots.
[0011] Furthermore, the unlocking component includes a connecting piece, a plug rod, and a fixing block. The top of the plug rod is fixedly installed on the bottom of the connecting piece. The plug rod is located between two U-shaped pieces and is inserted into the socket. The plug rod is located between two U-shaped pieces. There are two fixing blocks, which are fixedly installed on the arc surface of the plug rod and are symmetrical to each other.
[0012] Furthermore, the side of the fixing block furthest from the plug rod is designed as an arc surface.
[0013] Furthermore, the top surface of the fixing plate is provided with a connecting groove, and the plug rod abuts against the bottom surface of the connecting groove.
[0014] Furthermore, the top surface of the fixing plate has four connecting holes arranged in a rectangular array on the top surface of the fixing plate. The connecting assembly includes connecting cylinders and fixing rods. There are four connecting cylinders and four fixing rods respectively, and the four fixing rods are fixedly connected to the four connecting cylinders. The ends of the four fixing rods away from the connecting cylinders are fixedly connected to the four connecting holes respectively. The four connecting cylinders are fixedly installed on the bottom surface of the buckle and are arranged in a rectangular array.
[0015] In summary, this application includes at least one of the following beneficial technical effects:
[0016] When unlocking is required, the unlocking component is inserted into the socket, positioning it between the two U-shaped pieces. The unlocking component abuts against the side of the two U-shaped pieces closest to it. Rotating the unlocking component compresses the two U-shaped pieces, causing them to compress their springs and move away from the connecting rod. Rotating the buckle surface on the rotating rod disengages the connecting rod from the through hole, thus unlocking the base frame from the buckle surface. When locking is required, the unlocking component is inserted into the through hole, and the buckle surface is closed with the base frame. Rotating the unlocking component compresses the springs in the U-shaped pieces. As the buckle surface and base frame close together, the connecting rod connects to the through hole. Removing the unlocking component causes the two springs to return, sliding the two U-shaped pieces towards their opposite positions on the top surface of the fixed plate. The opposite sides of the two U-shaped pieces abut against the curved surface of the connecting rod, clamping the connecting rod. This locks the buckle surface and base frame together, preventing unauthorized unlocking and improving the device's safety.
[0017] When the device is locked, the bottom surface of the fixing plate abuts against the tops of the two protrusions on the bending spring. Utilizing the elasticity of the bending spring, as the base frame and the buckle surface come together, the bending spring is pressed by the bottom surface of the fixing plate, forming elastic contact and preventing wear. When the device is unlocked, the bending spring springs back, lifting the fixing plate and allowing the device to unlock quickly, improving its convenience. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure in the embodiment;
[0019] Figure 2 This is a structural diagram showing the connection between the base frame and the fixed plate;
[0020] Figure 3 This is a structural diagram of the base frame;
[0021] Figure 4 A schematic diagram of the structure where the unlocking component is inserted into the fixing plate;
[0022] Figure 5 Exploded view of the fastener and fixing plate;
[0023] Figure 6 This is a schematic diagram of the watch body.
[0024] Figure 7 This is a schematic diagram of the watch body structure when unlocked;
[0025] Figure 8 To unlock the main view of the component.
[0026] Reference numerals: 1. Base frame; 11. Rotating rod; 12. Connecting rod; 13. Fixing plate; 14. Mounting slot; 15. Bending spring; 16. Connecting slot; 151. Protrusion; 2. Buckle face; 21. Insertion hole; 3. Fixing plate; 31. Placement slot; 32. Spring; 33. U-shaped piece; 34. Through hole; 35. Connecting block; 36. Connecting hole; 4. Connecting assembly; 41. Connecting cylinder; 42. Fixing rod; 5. Unlocking assembly; 51. Connecting piece; 52. Insertion rod; 53. Fixing block; 6. Watch body. Detailed Implementation
[0027] The present application will be further described in detail below with reference to the accompanying drawings.
[0028] Example, refer to Figures 1-8A watch strap buckle with anti-tampering function includes a watch body 6. A base frame 1, a buckle face 2, and a fixing plate 3 are fixedly mounted on the watch body 6. A rotating rod 11 is fixedly mounted between the two sides of the base frame 1. The buckle face 2 is rotatably connected to the rotating rod 11. Two symmetrical placement slots 31 are formed on the top surface of the fixing plate 3. Springs 32 are fixedly connected to each of the two placement slots 31. U-shaped pieces 33 are fixedly connected to opposite ends of the two springs 32. The bottom surfaces of the two U-shaped pieces 33 are slidably connected to the top surface of the fixing plate 3. The bottom surface of the base frame 1 is close to... A connecting rod 12 is fixedly installed on one side of the U-shaped piece 33. A through hole 34 is opened on the top surface of the fixing plate 3, and the connecting rod 12 passes through the through hole 34. The connecting rod 12 is located between the two U-shaped pieces 33. The two U-shaped pieces 33 are attached to the arc surface of the connecting rod 12 on the side near the connecting rod 12. A connecting component 4 for connecting the buckle face 2 is fixedly installed on the fixing plate 3. An insertion hole 21 is opened on the top surface of the buckle face 2 and passes through the top surface of the buckle face 2. An unlocking component 5 is provided on the insertion hole 21 for abutting the two U-shaped pieces 33 and compressing the spring 32 of the U-shaped pieces 33. The watch body 6 is generally composed of a display, a fixed buckle, an upper section of the watch strap and a lower section of the watch strap. The base frame 1 and the buckle face 2 are fixedly installed on the upper section of the watch strap through the connecting rod 12, and then the lower section of the watch strap is inserted into the base frame 1 and fixed by the buckle face. When the unlocking device is needed, first pull the lower section of the watch strap out of the fixed buckle, exposing the insertion hole 21 on the buckle surface 2. Insert the unlocking component 5 into the insertion hole 21, so that the unlocking component 5 is inserted between the two U-shaped pieces 33, and the unlocking component 5 abuts against the side of the two U-shaped pieces 33 closest to the unlocking component 5. Then, by rotating the unlocking component 5, the unlocking component 5 squeezes the two U-shaped pieces 33, so that the two U-shaped pieces 33 compress the spring 32 respectively, so that the two U-shaped pieces 33 move away from the connecting rod 12. Then, by rotating the buckle surface 2, the buckle surface 2 rotates on the rotating rod 11, so that the connecting rod 12 disengages from the through hole 34, thereby completing the unlocking between the base frame 1 and the buckle surface 2. When the device needs to be locked, the unlocking component 5 is inserted into the through hole 34, and then the buckle surface 2 is closed with the base frame 1. The unlocking component 5 is rotated to compress the spring 32 with the U-shaped piece 33. As the buckle surface 2 and the base frame 1 are closed, the connecting rod 12 is connected to the through hole 34. Then, by removing the unlocking component 5, the two springs 32 rebound, causing the two U-shaped pieces 33 to slide towards their opposite positions on the top surface of the fixing plate 3. Thus, the opposite sides of the two U-shaped pieces 33 abut against the arc surface of the connecting rod 12, thereby clamping the connecting rod 12 with the two U-shaped pieces 33. This completes the closure and locking of the buckle surface 2 and the base frame 1, preventing arbitrary unlocking and improving the safety of the device.
[0029] Reference Figure 3 as well as Figure 4The connecting rod 12 has two fixed pieces 13 at its ends, and two U-shaped pieces 33 are located between the two fixed pieces 13. The inner diameter of the fixed pieces 13 is smaller than the inner diameter of the through hole 34. When the device is locked, when the buckle surface 2 and the base frame 1 are closed, the connecting rod 12 is inserted into the through hole 34, the fixed pieces 13 are located outside the through hole 34, and the U-shaped pieces 33 slide inward under the action of the spring 32, clamping the connecting rod 12. At the same time, the fixed pieces 13 restrict the axial movement of the connecting rod 12, ensuring a stable lock. When the device is unlocked, because the inner diameter of the fixed pieces 13 is smaller than the inner diameter of the through hole 34, the connecting rod 12 and the fixed pieces 13 disengage from the through hole 34, improving the stability of the device.
[0030] Reference Figure 2 as well as Figure 3 The top surface of the base frame 1 has a mounting groove 14, in which a bending spring piece 15 is fixedly installed. The top surface of the bending spring piece 15 has two protrusions 151, the tops of which abut against the bottom surface of the fixing plate 3. When the device is locked, the bottom surface of the fixing plate 3 abuts against the tops of the two protrusions 151 on the bending spring piece 15. Utilizing the elasticity of the bending spring piece 15, as the base frame 1 and the fastening surface 2 merge, the bending spring piece 15 is compressed by the bottom surface of the fixing plate 3, forming an elastic contact and preventing wear. When the device is unlocked, the bending spring piece 15 springs back, lifting the fixing plate 3, allowing the device to unlock quickly and improving its convenience.
[0031] Reference Figure 2 Two U-shaped pieces 33 have connecting blocks 35 fixedly installed on their top surfaces, and springs 32 are sleeved on the outer periphery of the connecting blocks 35 and fixedly connected. When the device is unlocked or locked, the U-shaped pieces 33 compress the springs 32, or the springs 32 rebound to reset the U-shaped pieces 33. The connecting blocks 35 serve as the mounting base for the springs 32, ensuring that the extension and contraction direction of the springs 32 is always consistent with the sliding direction of the U-shaped pieces 33, preventing skewing and improving the stability of the device. The springs 32 directly apply their elastic force to the U-shaped pieces 33 through the connecting blocks 35, reducing energy loss, improving the response speed of locking or unlocking, and increasing the working efficiency of the device.
[0032] Reference Figure 2 The curved surfaces of the two springs 32 respectively abut against the side walls inside the two placement slots 31. When the device is unlocked or locked, the two springs 32 are compressed by the U-shaped piece 33, or the two springs 32 return to their original position. The side walls of the placement slots 31 radially limit the curved surfaces of the springs 32, ensuring that the springs 32 move in a straight line when compressed or extended, avoiding jamming of the U-shaped piece 33 due to lateral force, and improving the locking reliability of the device.
[0033] Reference Figure 1 as well as Figure 4The unlocking component 5 includes a connecting piece 51, a plug-in rod 52, and a fixing block 53. The top end of the plug-in rod 52 is fixedly installed on the bottom of the connecting piece 51. The plug-in rod 52 is located between two U-shaped pieces 33 and is inserted into the socket 21. Two fixing blocks 53 are provided, and the two fixing blocks 53 are fixedly installed on the arc surface of the plug-in rod 52 respectively and are symmetrical to each other. When the unlocking component 5 is inserted into the through hole 34, the plug-in rod 52 is inserted into the socket 21, so that the plug-in rod 52 is located between the two U-shaped pieces 33. The user can rotate the connecting piece 51 to make the plug-in rod 52 rotate in the socket 21. As the plug-in rod 52 rotates, one side of the two fixing blocks 53 on the plug-in rod 52 abuts against one side of the two U-shaped pieces 33 respectively, so that the two U-shaped pieces 33 compress the spring 32 respectively, thereby moving the two U-shaped pieces 33 away from the connecting rod 12, improving the safety of the device.
[0034] Reference Figure 4 The side of the fixing block 53 away from the plug rod 52 is designed as an arc surface. When the plug rod 52 is rotated, the arc surfaces of the two fixing blocks 53 respectively abut against one side of the two U-shaped pieces 33, compressing the U-shaped pieces 33. Through the arc surface, the wear of the fixing blocks 53 when abutting against the U-shaped pieces 33 is reduced, thereby increasing the service life of the device.
[0035] Reference Figure 2 as well as Figure 4 The top surface of the fixing plate 3 is provided with a connecting groove 16, and the plug rod 52 abuts against the bottom surface of the connecting groove 16. The plug rod 52 is inserted into the insertion hole 21, and the bottom end of the plug rod 52 is connected to the connecting groove 16 and abuts against the bottom surface of the connecting groove 16, forming an axial limit, which ensures that the insertion depth of the plug rod 52 is consistent each time, prevents over-insertion or shaking, and improves the service life of the device.
[0036] Reference Figure 5 The top surface of the fixing plate 3 has four connecting holes 36 arranged in a rectangular array. The connecting assembly 4 includes connecting cylinders 41 and fixing rods 42. Four connecting cylinders 41 and four fixing rods 42 are provided, and the four fixing rods 42 are fixedly connected to the four connecting cylinders 41. The ends of the four fixing rods 42 away from the connecting cylinders 41 are fixedly connected to the four connecting holes 36. The four connecting cylinders 41 are fixedly installed on the bottom surface of the buckle surface 2 in a rectangular array. When assembling the fixing plate 3 and the buckle surface 2, the four fixing rods 42 are aligned with the four connecting holes 36. When the fixing plate 3 and the buckle surface 2 are joined together, the four fixing rods 42 are inserted into the connecting holes 36 and fixed by injection molding, improving the convenience of the device.
[0037] Working principle:
[0038] 1. When the device needs to be locked, insert the plug rod 52 into the plug hole 21, rotate the rotating rod 11, and make the buckle surface 2 rotate with the rotating rod 11. Then the fixing plate 3 rotates, and the buckle surface 2 closes with the base frame 1. The fixing plate 3 then abuts against the protrusion 151 of the bent spring piece 15, compressing it. Rotate the plug rod 52, and make the two fixing blocks 53 on the plug rod 52 abut against the two U-shaped pieces 33 respectively. Then the two U-shaped pieces 33 compress the two springs 32 respectively. As the buckle surface 2 and the base frame 1 merge, the connecting rod 12 connects into the through hole 34. Then, by removing the plug rod 52, the two springs 32 rebound, and the two U-shaped pieces 33 slide towards the opposite position on the top surface of the fixing plate 3. Thus, the opposite side of the two U-shaped pieces 33 abuts against the arc surface of the connecting rod 12, realizing that the two U-shaped pieces 33 clamp the connecting rod 12, thereby completing the merging and locking of the buckle surface 2 and the base frame 1, preventing arbitrary unlocking and improving the safety of the device.
[0039] 2. When the device needs to be unlocked, the plug rod 52 is inserted into the socket 21, so that the plug rod 52 is inserted between the two U-shaped pieces 33. By rotating the plug rod 52, the two fixing blocks 53 on the plug rod 52 press the two U-shaped pieces 33 respectively. Then, the two U-shaped pieces 33 compress the spring 32 respectively, so that the two U-shaped pieces 33 move away from the connecting rod 12. Then, by rotating the buckle surface 2, the buckle surface 2 rotates on the rotating rod 11, so that the connecting rod 12 disengages from the through hole 34, thereby unlocking the base frame 1 from the buckle surface 2, which improves the convenience of the device.
[0040] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A watch strap buckle with anti-tamper function, comprising a watch body (6), characterized in that: The watch body (6) is fixedly mounted with a base frame (1), a buckle face (2), and a fixing plate (3). A rotating rod (11) is fixedly mounted between the two sides of the base frame (1). The buckle face (2) is rotatably connected to the rotating rod (11). The top surface of the fixing plate (3) has two placement slots (31) that are symmetrical to each other. Springs (32) are fixedly connected in the two placement slots (31). U-shaped pieces (33) are fixedly connected to the opposite ends of the two springs (32). The bottom surfaces of the two U-shaped pieces (33) are slidably connected to the top surface of the fixing plate (3). A connecting plate is fixedly mounted on the bottom surface of the base frame (1) near the U-shaped pieces (33). The rod (12) has a through hole (34) on the top surface of the fixing plate (3). The connecting rod (12) passes through the through hole (34). The connecting rod (12) is located between the two U-shaped pieces (33). The two U-shaped pieces (33) are attached to the arc surface of the connecting rod (12) on the side close to the connecting rod (12). A connecting component (4) for connecting the buckle surface (2) is fixedly installed on the fixing plate (3). A socket (21) is opened on the top surface of the buckle surface (2) and passes through the top surface of the buckle surface (2). An unlocking component (5) is provided on the socket (21) for abutting the two U-shaped pieces (33) and allowing the U-shaped pieces (33) to compress the spring (32).
2. A watch strap buckle with anti-tamper function according to claim 1, characterized in that: The two ends of the connecting rod (12) are respectively fixedly connected to the fixing pieces (13), and the two U-shaped pieces (33) are located between the two fixing pieces (13). The inner diameter of the fixing piece (13) is smaller than the inner diameter of the through hole (34).
3. A watch strap buckle with anti-tamper function according to claim 1, characterized in that: The top surface of the base frame (1) is provided with an installation groove (14), and a bending spring (15) is fixedly installed in the installation groove (14). The top surface of the bending spring (15) is provided with two protrusions (151), and the top ends of the two protrusions (151) respectively abut against the bottom surface of the fixing plate (3).
4. A watch strap buckle with anti-tamper function according to claim 1, characterized in that: Connecting blocks (35) are fixedly installed on the top surfaces of the two U-shaped pieces (33), and the spring (32) is sleeved on the outer periphery of the connecting block (35) and fixedly connected.
5. A watch strap buckle with anti-tamper function according to claim 1, characterized in that: The arc surfaces of the two springs (32) respectively abut against the side walls inside the two placement slots (31).
6. A watch strap buckle with anti-tamper function according to claim 1, characterized in that: The unlocking component (5) includes a connecting piece (51), a plug rod (52), and a fixing block (53). The top end of the plug rod (52) is fixedly installed on the bottom of the connecting piece (51). The plug rod (52) is located between the two U-shaped pieces (33). The plug rod (52) is inserted into the socket (21). The plug rod (52) is located between the two U-shaped pieces (33). There are two fixing blocks (53). The two fixing blocks (53) are respectively fixedly installed on the arc surface of the plug rod (52) and are symmetrical to each other.
7. A watch strap buckle with anti-tamper function according to claim 6, characterized in that: The side of the fixing block (53) away from the plug rod (52) is designed as an arc surface.
8. A watch strap buckle with anti-tamper function according to claim 6, characterized in that: The top surface of the fixing plate (3) is provided with a connecting groove (16), and the plug rod (52) abuts against the bottom surface of the connecting groove (16).
9. A watch strap buckle with anti-tamper function according to claim 1, characterized in that: The top surface of the fixing plate (3) has four connecting holes (36) arranged in a rectangular array on the top surface of the fixing plate (3). The connecting component (4) includes a connecting cylinder (41) and a fixing rod (42). There are four connecting cylinders (41) and four fixing rods (42). The four fixing rods (42) are fixedly connected to the four connecting cylinders (41). The ends of the four fixing rods (42) away from the connecting cylinders (41) are fixedly connected to the four connecting holes (36). The four connecting cylinders (41) are fixedly installed on the bottom surface of the buckle surface (2) and are arranged in a rectangular array.