Assembled watch with snap-on structure
By using a snap-fit locking mechanism and a pre-positioning structure, the problems of cumbersome watch disassembly and assembly and poor sealing performance are solved, achieving convenient disassembly and assembly, stable locking and efficient sealing, thus extending the watch's service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN RUIBO WATCH MANUFACTURING CO LTD
- Filing Date
- 2025-09-19
- Publication Date
- 2026-06-26
AI Technical Summary
Existing watches are cumbersome to disassemble and reassemble, unstable, and have poor sealing performance, which affects their lifespan.
The snap-fit locking mechanism and pre-positioning structure, combined with the beveled sealing ring, enable quick assembly and disassembly, stable locking, and excellent sealing.
It achieves convenient disassembly and assembly, stable locking, and efficient sealing, thus extending the watch's lifespan.
Smart Images

Figure CN224417179U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of watch technology, specifically referring to a modular watch with a snap-fit structure. Background Technology
[0002] Currently, most watches on the market use screws or simple snap-fit connections to assemble their case backs. Screw-mounted watches require special tools for disassembly and assembly, making the process cumbersome. Repeated disassembly and assembly can easily strip the screws and damage the case threads, affecting the watch's lifespan. While snap-fit watches are relatively easy to assemble and disassemble, the locking stability of the snaps is poor. During daily wear, external forces such as shocks and impacts can cause the case back to loosen or even fall off, allowing dust and moisture to enter the case, damaging the movement and affecting the watch's normal use.
[0003] Meanwhile, some existing watches lack an effective positioning structure during the case back assembly process, making it difficult to quickly and accurately locate the mating position between the case back and the watch case, resulting in low assembly efficiency; moreover, the sealing structure design of most watches is not reasonable enough, and the sealing performance is poor, which cannot effectively prevent the intrusion of external dust and moisture, further shortening the service life of the watch. Utility Model Content
[0004] To solve the above problems, this utility model provides a modular watch with a snap-fit structure, which is easy to assemble and disassemble, has stable locking, accurate positioning, and excellent sealing performance.
[0005] To achieve the above functions, the technical solution adopted by this utility model is as follows: A modular watch with a snap-fit structure includes a watch case and a watch movement installed in the watch case. The watch case is equipped with a back cover. The upper and lower opposite sides of the watch case are connected to watch straps. The left and right opposite sides of the watch case are provided with grooves. A snap-fit locking mechanism is provided in the grooves to snap and lock the back cover, which can facilitate disassembly and assembly while ensuring the stability of the back cover assembly. The snap-fit locking mechanism includes a fixing block, a locking rod, a fastening plate, and a spring. The fixing block is fixedly installed in the groove. The locking rod slides through the fixing block and is arranged in multiple parallel groups. The fastening plate is fixedly connected to the side ends of the multiple parallel locking rods. A sleeve block is fixedly installed in the groove. The sleeve block is slidably sleeved with the locking rod. The spring is sleeved on the locking rod and its two ends are respectively connected to the fixing block and the sleeve block.
[0006] As a preferred technical solution of this utility model, locking grooves are provided on the two opposite side walls of the bottom cover. The locking grooves are correspondingly set with locking rods. The locking rods are driven to slide between the fixing block and the sleeve block by the snap-action plate. The spring is deformed due to the sliding of the locking rod. When the locking rod is engaged with the bottom cover, it achieves a snap-fit. After the snap-action plate is released, the spring returns to its original position and drives the locking rod to insert into the locking groove, forming a mechanical engagement, thereby completing the snap-fit locking of the bottom cover. This enables quick disassembly and assembly of the bottom cover, which is convenient for later maintenance or replacement of parts. It also ensures the stability of the bottom cover after assembly through the cooperation of the spring and the locking rod, and avoids loosening during use.
[0007] As a preferred technical solution of this utility model, the watch case is provided with a mounting convex frame, and the four corners of the mounting convex frame are provided with positioning holes. The mounting convex frame is used to mount the bottom cover.
[0008] As a preferred technical solution of this utility model, the bottom cover has a positioning protrusion that matches the positioning hole on the side facing the convex frame. The positioning protrusion of the bottom cover matches the positioning hole of the convex frame. During installation, the positioning protrusion is inserted into the positioning hole to achieve the pre-positioning of the bottom cover. This can quickly find the installation position and improve assembly efficiency. At the same time, the pre-positioning structure also enhances the stability of the bottom cover after installation.
[0009] As a preferred technical solution of this utility model, the convex frame is provided with a beveled sealing ring. After the bottom cover is installed, the beveled sealing ring on the convex frame will be squeezed by the bottom cover and the convex frame, tightly filling the gap between the two, enhancing the sealing performance of the watch, effectively preventing dust, moisture and other substances from entering the watch case, protecting the movement from damage, and extending the service life of the watch.
[0010] Compared with the prior art, the present invention achieves the following beneficial effects by adopting the above structure:
[0011] 1. The locking mechanism in the grooves on both sides of the case allows the locking lever to slide by simply pulling the locking plate, enabling quick disassembly and assembly of the case back without the need for special tools. This greatly simplifies the disassembly and assembly process and facilitates future maintenance or replacement of parts for the watch movement. At the same time, the spring reset causes the locking lever to precisely engage with the locking groove on the case back, forming a reliable mechanical lock. This effectively prevents the case back from loosening or falling off due to external forces such as vibration or collision during use, ensuring the stability of the case back assembly.
[0012] 2. The raised bezel inside the case provides a stable support base for the case back. The positioning holes at its four corners are adapted to the positioning protrusions on the case back. During assembly, the positioning protrusions can be inserted into the positioning holes to achieve the pre-positioning of the case back. This helps users quickly find the matching position between the case back and the case, greatly improving assembly efficiency. At the same time, the pre-positioning structure further enhances the overall stability after the case back is installed, avoiding the impact on the integrity of the watch structure due to assembly misalignment.
[0013] 3. The beveled sealing ring on the raised bezel will be squeezed by the case back and the raised bezel after the case back is installed, tightly filling the gap between the two to form an effective sealing structure. This can significantly enhance the watch's sealing performance, effectively preventing external dust and moisture from entering the watch case, avoiding damage to the movement due to dust contamination and moisture corrosion, and extending the watch's service life. Attached Figure Description
[0014] Figure 1 This utility model presents a schematic diagram of the overall structure of an assembled watch with a snap-fit mechanism. Figure 1 ;
[0015] Figure 2 This utility model presents a schematic diagram of the overall structure of an assembled watch with a snap-fit mechanism. Figure 2 ;
[0016] Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle;
[0017] Figure 4 This is a schematic diagram of the structure of a watch case with a snap-fit structure proposed in this utility model.
[0018] Figure 5 for Figure 4 Enlarged view of section B in the middle.
[0019] Among them, 1. watch case, 2. back cover, 201. locking groove, 202. mounting frame, 203. positioning hole, 204. beveled sealing ring, 3. watch strap, 4. groove, 5. locking mechanism, 501. fixing block, 502. locking rod, 503. snap plate, 504. spring, 505. sleeve block. Detailed Implementation
[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.
[0022] like Figures 1-5 As shown, the present invention provides a modular watch with a snap-fit structure, including a watch case 1 and a watch movement installed in the watch case 1. The watch case 1 is equipped with a back cover 2. The upper and lower opposite sides of the watch case 1 are connected to watch straps 3. The left and right opposite sides of the watch case 1 are provided with grooves 4. The grooves 4 are provided with snap-fit locking mechanisms 5, which can snap-fit and lock the back cover 2, so as to facilitate disassembly and assembly while ensuring the stability of the assembly of the back cover 2.
[0023] like Figures 1-3 As shown, the locking mechanism 5 includes a fixing block 501, a locking rod 502, a latching plate 503, and a spring 504. The fixing block 501 is fixedly disposed in the groove 4. Multiple sets of locking rods 502 slide through the fixing block 501 and are arranged parallel to each other. The latching plate 503 is fixedly connected to the side ends of the multiple sets of parallel locking rods 502. A sleeve block 505 is fixedly disposed in the groove 4 and is slidably sleeved with the locking rod 502. The spring 504 is sleeved on the locking rod 502 and its two ends are respectively connected to the fixing block 501 and the sleeve block 505. Locking grooves 201 are provided on the two opposite side walls of the bottom cover 2. Each locking rod 502 is configured to correspond to the locking rod 502. The locking rod 502 is driven by the snap plate 503 to slide between the fixing block 501 and the sleeve block 505. The spring 504 deforms due to the sliding of the locking rod 502. When the locking rod 502 is engaged with the bottom cover 2, it achieves a snap-fit. After the snap plate 503 is released, the spring 504 returns to its original position and drives the locking rod 502 to insert into the locking groove 201, forming a mechanical engagement. This completes the snap-fit locking of the bottom cover 2, enabling quick disassembly and assembly of the bottom cover 2. This facilitates later maintenance or replacement of parts. The cooperation between the spring 504 and the locking rod 502 also ensures the stability of the bottom cover 2 after assembly, preventing loosening during use.
[0024] like Figures 4-5As shown, the watch case 1 has a raised bezel 202 inside, and positioning holes 203 are provided at the four corners of the raised bezel 202. The raised bezel 202 is used to mount the back cover 2. The side of the back cover 2 facing the raised bezel 202 has a positioning protrusion that matches the positioning hole 203. The positioning protrusion of the back cover 2 matches the positioning hole 203 of the raised bezel 202. During installation, the positioning protrusion is inserted into the positioning hole 203 to achieve the pre-positioning of the back cover 2, which can quickly find the installation position and improve assembly efficiency. At the same time, the pre-positioning structure also enhances the stability of the back cover 2 after installation. The raised bezel 202 is provided with a beveled sealing ring 204. After the back cover 2 is installed, the beveled sealing ring 204 on the raised bezel 202 will be squeezed by the back cover 2 and the raised bezel 202 to tightly fill the gap between them, enhance the sealing performance of the watch, effectively prevent dust, moisture and other substances from entering the interior of the watch case 1, protect the movement from damage, and extend the service life of the watch.
[0025] In actual use, hold the bottom cover 2 and initially align the positioning protrusion with the positioning hole 203. Use your fingers to press the latching plate 503 in the grooves 4 on both sides of the watch case 1. The latching plate 503 drives multiple sets of parallel locking rods 502 to slide along the fixing block 501 and the sleeve block 505. At this time, the spring 504 sleeved on the locking rod 502 is compressed, and the locking rod 502 retracts into the groove 4, releasing the locking state and making room for the bottom cover 2 to fit against the raised frame 202. Keep the latching plate 503 in the latching state, push the bottom cover 2 into the watch case 1 so that the positioning protrusion is fully inserted into the positioning hole 203. 3. At the same time, the bottom cover 2 is attached to the raised frame 202. Then, the retaining plate 503 is released, the spring 504 returns to its deformation, and pushes the locking rod 502 to slide outward along the fixing block 501 and the sleeve block 505 until the locking rod 502 is inserted into the locking groove 201 on both sides of the bottom cover 2, forming a mechanical engagement, and completing the locking assembly of the bottom cover 2. After the bottom cover 2 is assembled, the inclined sealing ring 204 on the raised frame 202 tightly fills the gap between the bottom cover 2 and the raised frame 202 under the squeezing action of the bottom cover 2 and the raised frame 202, confirming that the sealing ring is not offset or damaged, and ensuring the sealing performance of the watch.
[0026] Use your fingers to press the latching plates 503 in the grooves 4 on both sides of the watch case 1, which will cause the locking lever 502 to slide inward into the groove 4. The spring 504 will be compressed, and the locking lever 502 will disengage from the locking groove 201 of the bottom cover 2, thus releasing the lock on the bottom cover 2. Keep the latching plates 503 in the latched state, and gently pull the bottom cover 2 outward so that the positioning protrusion of the bottom cover 2 can be disengaged from the positioning hole 203 of the mounting frame 202. Then the bottom cover 2 can be removed from the watch case 1 to complete the disassembly, so that the watch movement can be maintained or parts replaced later.
[0027] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A modular watch with snap structure, comprising a watch case (1) and a watch core installed in the watch case (1), the watch case (1) is provided with a bottom cover (2), the upper and lower opposite sides of the watch case (1) are connected with watch bands (3), characterized in that: The watch case (1) has grooves (4) on both the left and right sides. A locking mechanism (5) is provided in the groove (4). The locking mechanism (5) includes a fixing block (501), a locking rod (502), a latching plate (503), and a spring (504). The fixing block (501) is fixed in the groove (4). The locking rod (502) slides through the fixing block (501) and is arranged in multiple parallel groups. The latching plate (503) is fixedly connected to the side end of the multiple parallel locking rods (502). A sleeve block (505) is fixedly provided in the groove (4). The sleeve block (505) is slidably sleeved with the locking rod (502). The spring (504) is sleeved on the locking rod (502) and its two ends are respectively connected to the fixing block (501) and the sleeve block (505).
2. The assembled watch with a snap-fit structure according to claim 1, characterized in that: The bottom cover (2) has locking grooves (201) on its two opposite side walls, and the locking grooves (201) and locking rods (502) are provided in a one-to-one correspondence.
3. A modular watch with a snap-fit structure according to claim 1, characterized in that: The watch case (1) is provided with a mounting frame (202), and the four corners of the mounting frame (202) are provided with positioning holes (203).
4. A modular watch with a snap-fit structure according to claim 3, characterized in that: The bottom cover (2) has a positioning protrusion that matches the positioning hole (203) on the side facing the mounting convex frame (202).
5. A modular watch with a snap-fit structure according to claim 3, characterized in that: A beveled sealing ring (204) is provided on the convex frame (202).