Watch with watchcase easy to replace
By incorporating components such as a locking lever and crown into the watch, the problems of complex disassembly and damage to the watch movement in existing technologies are solved, enabling quick replacement and stable fixation of the watch case and strap.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU SANYI ELECTRONICS CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-28
AI Technical Summary
When the movement of a current watch malfunctions, the entire watch case needs to be disassembled, which can easily damage the watch strap or case. Furthermore, changing the color of the watch case and watch strap is a complicated process and cannot meet the personalized needs of users.
Replaceable components, including levers and crowns, are installed between the movement and the case, allowing for quick disassembly and reassembly via grooves and spring posts, simplifying the replacement process.
It enables quick disassembly and replacement of the watch movement and case, eliminating the need for tools, improving the convenience and stability of replacement, and protecting the safety of the watch movement.
Smart Images

Figure CN224176893U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of watch technology, specifically to a watch with an easily replaceable case. Background Technology
[0002] A watch is a small, portable timekeeping device worn on the wrist, primarily used to display time. It is typically driven by a mechanical movement, a quartz oscillator, or a smart electronic system.
[0003] In existing watches, the movement is often fixed inside the watch case. When the movement malfunctions, the entire watch case needs to be disassembled, which can easily damage the strap or the watch case. There is also a risk of losing parts during the repair process. If you want to change the color of the watch case and strap, you need to use tools to remove the spring bar between the strap and the watch case before you can change the strap color. The operation is complicated and cannot meet the personalized needs of users. Utility Model Content
[0004] The purpose of this invention is to provide a watch with an easily replaceable case, thereby solving the problems mentioned in the background section.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A watch with an easily interchangeable case, comprising:
[0007] The watch case has a watch strap rotatably connected to both ends by spring bars. The end of the watch strap is fixedly connected to a buckle. The interior of the watch case is hollowed out to accommodate the watch movement. The upper surface of the watch movement is fixedly connected to the dial. When the dial is inserted into the watch case, the upper surface of the dial is parallel to the upper surface of the watch case. A replacement assembly is provided between the watch movement and the watch case for quick replacement of the watch case and the watch strap.
[0008] Preferably, the replacement component includes a lever and a crown, the end of the lever is fixedly connected to a connecting block, the connecting block is fixedly inserted into the watch movement, and a mating groove is provided between the connecting block and the top of the lever.
[0009] Preferably, the replacement component further includes a second slot, which has four slots respectively located on both sides of the watch case. The positions of the second slots correspond to the 2 o'clock, 4 o'clock, 8 o'clock and 10 o'clock positions on the dial. The replacement lever has three levers, which correspond to the 4 o'clock, 8 o'clock and 10 o'clock positions on the dial.
[0010] Preferably, mating blocks are fixedly connected to both sides of the second slot, and the mating blocks and the mating slots of the lever are interference-fitted to fix the watch movement inside the dial.
[0011] Preferably, a connecting block is fixedly connected to the end of the crown, and a mating groove is provided between the connecting block and the top of the crown. The connecting block is fixedly inserted into the inside of the watch movement and connected to the internal mechanical structure of the watch movement for adjusting the dial time. The mating block and the mating groove of the crown are interference-fitted to fix the watch movement inside the dial.
[0012] Preferably, the watch movement has a first slot on both sides, and the inner wall of the watch case has a telescopic slot on both sides. A compression spring is fixedly connected to the bottom of the telescopic slot, and a spring post is fixedly connected to the top of the compression spring. The first slot and the spring post cooperate to assist the second slot and the locking rod in fixing the watch movement and the dial.
[0013] Preferably, a foolproof block is fixedly connected to the top of the curved edge of the watch movement, and the position of the foolproof block corresponds to the 12 o'clock position on the dial.
[0014] Preferably, the bottom of the inner wall of the watch case is provided with a foolproof notch, which cooperates with the foolproof block to ensure that the watch movement is installed in the correct direction, and the position of the foolproof notch corresponds to the 12 o'clock position on the dial.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This invention, by setting a replacement component between the watch movement and the watch case and strap, allows for quick disassembly and replacement of the watch case and strap. Compared to existing technologies, no tools are required; users can manually remove the fixing between the watch movement and the watch case and strap, thereby quickly changing the color of the watch case and strap or facilitating the repair of the removed watch movement, making it convenient and fast.
[0017] This invention uses spring posts, locking rods, etc., to fix the watch movement and dial, thereby making the fixation between the watch movement and the watch case more stable, effectively preventing the watch movement from accidentally falling off and avoiding damage to the watch movement. Attached Figure Description
[0018] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a three-dimensional schematic diagram of the watch case of this utility model;
[0020] Figure 3 This is a three-dimensional schematic diagram of the slot and spring post of this utility model;
[0021] Figure 4 This is a three-dimensional schematic diagram of the movement and dial structure of this utility model;
[0022] Figure 5 This is a three-dimensional schematic diagram of the connection between the watch case and the watch movement of this utility model;
[0023] Figure 6 This is a schematic diagram of the spring column of this utility model.
[0024] In the diagram: 1-Dial; 2-Movement; 201-Anti-foolproof block; 202-First slot; 3-Case; 301-Second slot; 302-Matching block; 303-Anti-foolproof opening; 304-Telescopic groove; 4-Strap; 5-Clasp; 6-Lever; 601-Connecting block; 602-Matching groove; 7-Crown; 8-Spring pillar; 801-Compression spring. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Example 1:
[0027] Please see Figures 1 to 6 This utility model provides a technical solution:
[0028] A watch with an easily interchangeable case, comprising:
[0029] The watch case 3 has a watch strap 4 rotatably connected to both ends of the watch case 3 via spring bars. The end of the watch strap 4 is fixedly connected to a buckle 5. The interior of the watch case 3 is hollowed out to accommodate the watch movement 2. The upper surface of the watch movement 2 is fixedly connected to the dial 1. When the dial 1 is inserted into the watch case 3, the upper surface of the dial 1 is parallel to the upper surface of the watch case 3. A replacement assembly is provided between the watch movement 2 and the watch case 3 for quick replacement of the watch case 3 and the watch strap 4.
[0030] In this embodiment, the watch case 3 and the movement 2 can be disassembled and replaced at any time. Three locking levers 6 and one crown 7 are provided on the curved side surface of the movement 2. The locking levers 6 are inserted into the movement 2 for fixation via end connecting blocks 601. The crown 7 is connected to the mainspring barrel, escapement mechanism, etc. in the movement 2 through mechanical structures such as gear transmission to realize operations such as winding and adjusting the time. Both the locking levers 6 and the crown 7 are provided with mating grooves 602, and the positions of the locking levers 6 and the crown 7 correspond to the positions of the second locking groove 301 on the watch case 3. Pressing the lower end face of the movement 2 causes the movement 2 and the dial 1 to be inserted into the lower opening of the watch case 3. Both the locking levers 6 and the crown 7 are inserted into the second locking groove 301. The second locking groove 301 is fixedly connected with a mating block 302. The mating block 302 is interference-fitted with the mating grooves 602 of the locking levers 6 and the crown 7 to fix the movement 2 and the dial 1 and prevent the movement 2 from falling out of the watch case 3.
[0031] Specifically, the replacement component includes a lever 6 and a crown 7. A connecting block 601 is fixedly connected to the end of the lever 6. The connecting block 601 is fixedly inserted into the watch movement 2. A mating groove 602 is provided between the connecting block 601 and the top of the lever 6.
[0032] Specifically, the replacement component also includes a second slot 301, which has four slots respectively located on both sides of the watch case 3. The positions of the second slots 301 correspond to the 12 o'clock, 4 o'clock, 8 o'clock and 10 o'clock positions on the dial. The latch 6 has three latches, which correspond to the 14 o'clock, 8 o'clock and 10 o'clock positions on the dial.
[0033] Specifically, mating blocks 302 are fixedly connected to both sides of the second slot 301, and the mating blocks 302 and the mating slots 602 of the lever 6 are interference-fitted to fix the watch core 2 in the dial 1.
[0034] Specifically, a connecting block 601 is fixedly connected to the end of the crown 7, and a mating groove 602 is provided between the connecting block 601 and the top of the crown 7. The connecting block 601 is fixedly inserted into the inside of the movement 2 and connected to the internal mechanical structure of the movement 2 for adjusting the time on the dial 1. The mating block 302 and the mating groove 602 of the crown 7 are interference-fitted to fix the movement 2 in the dial 1.
[0035] In this embodiment, the curved side surface of the watch core 2 is also provided with a first slot 202. The position of the first slot 202 corresponds to the position of the spring post 8 provided on the inner side of the watch case 3. The spring post 8 is slidably connected in the telescopic groove 304 through the compression spring 801. When the watch core 2 is installed, the outer wall of the watch core 2 squeezes the spring post 8, causing the spring post 8 to slide into the telescopic groove 304 and squeeze the compression spring 801. When the spring post 8 moves to the corresponding position of the first slot 202, the spring post 8 pops out and is locked into the first slot 202 under the restoring force of the compression spring 801. This assists the second slot 301 and the locking rod 6 in fixing the watch core 2 and the dial 1, thereby making the fixation between the watch core 2 and the watch case 3 more stable and effectively preventing the watch core 2 from accidentally falling off, thus avoiding damage to the watch core 2.
[0036] When the watch case 3 and strap 4 need to be replaced, or when the watch movement 2 needs to be repaired, pick up the watch case 3, press the dial 1 downwards on one side of the upper end of the watch case 3, so that the spring column 8 is forced to move into the telescopic groove 304, squeezing and compressing the spring 801. The interference fit between the mating block 302 and the mating groove 602 is also released under the action of downward force. The user can manually release the fixation between the watch movement 2 and the watch case 3 and strap 4 without tools, so as to quickly change the color of the watch case 3 and strap 4 or facilitate the repair of the removed watch movement 2.
[0037] Specifically, the watch core 2 has a first slot 202 on both sides, and the inner wall of the watch case 3 has a telescopic slot 304 on both sides. A compression spring 801 is fixedly connected to the bottom of the telescopic slot 304, and a spring post 8 is fixedly connected to the top of the compression spring 801. The first slot 202 and the spring post 8 cooperate to assist the second slot 301 and the locking rod 6 in fixing the watch core 2 and the watch dial 1.
[0038] Specifically, after the watch movement 2 is removed separately, users can combine it with other parts as needed. For example, the watch movement can be attached with a lanyard (not shown in the picture) as a women's pendant, or users can choose to use it as other decorations according to their needs.
[0039] Example 2:
[0040] Specifically, a foolproof block 201 is fixedly connected to the top of the curved edge of the watch core 2, and the position of the foolproof block 201 corresponds to the 112 o'clock position on the dial.
[0041] Specifically, a foolproof notch 303 is provided at the bottom of the inner wall of the watch case 3. The foolproof notch 303 cooperates with the foolproof block 201 to ensure that the watch movement 2 is installed in the correct direction. The position of the foolproof notch 303 corresponds to the 112 o'clock position on the dial 1.
[0042] In this embodiment, a foolproof block 201 is fixedly connected to the top of the curved side surface of the watch movement 2. The position of the foolproof block 201 corresponds to the position of the foolproof opening 303 opened on the inner wall of the lower end face of the watch case 3. When installing the watch movement 2, aligning the position of the foolproof block 201 with the foolproof opening 303 can prevent the watch movement 2 from being installed in the wrong position. This allows the user to quickly complete the replacement without having to judge the correct installation direction of the dial 1 based on the length of the watch strap 4 and the position of the buckle 5.
[0043] In use, the watch case 3 and the movement 2 can be disassembled and replaced at any time. Three retaining rods 6 and one crown 7 are provided on the curved side surface of the movement 2. The retaining rods 6 are inserted into the movement 2 and fixed by an end connecting block 601. The crown 7 is connected to the mainspring barrel, escapement mechanism, etc., inside the movement 2 through a mechanical structure such as gear transmission to achieve operations such as winding and adjusting the time. Both the retaining rods 6 and the crown 7 are provided with mating grooves 602, and the positions of the retaining rods 6 and the crown 7 correspond to the positions of the second retaining groove 301 on the watch case 3. Pressing the lower end face of the movement 2 causes the movement 2 and the dial 1 to engage from the lower opening of the watch case 3. Both the retaining rods 6 and the crown 7 are engaged inside the second retaining groove 301. A mating block 302 is fixedly connected inside the second retaining groove 301. The mating block 302 is interference-fitted with the mating grooves 602 of the retaining rods 6 and the crown 7 to fix the movement 2 and the dial 1, preventing the movement 2 from falling out of the watch case 3.
[0044] The side curved surface of the watch movement 2 is also provided with a first slot 202. The position of the first slot 202 corresponds to the position of the spring post 8 provided on the inner side of the watch case 3. The spring post 8 is slidably connected in the telescopic groove 304 through the compression spring 801. When the watch movement 2 is installed, the outer wall of the watch movement 2 squeezes the spring post 8, causing the spring post 8 to slide into the telescopic groove 304 and squeeze the compression spring 801. When the spring post 8 moves to the corresponding position of the first slot 202, the spring post 8 pops out and is locked into the first slot 202 under the restoring force of the compression spring 801. This assists the second slot 301 and the locking rod 6 in fixing the watch movement 2 and the dial 1, thereby making the fixation between the watch movement 2 and the watch case 3 more stable and effectively preventing the watch movement 2 from accidentally falling off and avoiding damage to the watch movement 2.
[0045] When the watch case 3 and strap 4 need to be replaced, or when the watch movement 2 needs to be repaired, pick up the watch case 3, press the dial 1 downwards on one side of the upper end of the watch case 3, so that the spring column 8 is forced to move into the telescopic groove 304, squeezing and compressing the spring 801. The interference fit between the mating block 302 and the mating groove 602 is also released under the action of downward force. The user can manually release the fixation between the watch movement 2 and the watch case 3 and strap 4 without tools, so as to quickly change the color of the watch case 3 and strap 4 or facilitate the repair of the removed watch movement 2.
[0046] All other parts of this utility model not described herein are the same as existing technologies, or are known technologies, or can be implemented using existing technologies, and will not be described in detail here.
[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A watch with an easily replaceable case, characterized in that, include: The watch case (3) has a watch strap (4) rotatably connected to both ends of the watch case (3) via spring bars. The end of the watch strap (4) is fixedly connected to a buckle (5). The interior of the watch case (3) is hollowed out to accommodate the watch movement (2). The upper end of the watch movement (2) is fixedly connected to a dial (1). When the dial (1) is inserted into the watch case (3), the upper surface of the dial (1) is parallel to the upper surface of the watch case (3). A replacement component is provided between the watch movement (2) and the watch case (3) for quick replacement of the watch case (3) and the watch strap (4).
2. A watch with an easily replaceable case according to claim 1, characterized in that: The replacement component includes a lever (6) and a crown (7). The end of the lever (6) is fixedly connected to a connecting block (601). The connecting block (601) is fixedly inserted into the watch movement (2). A mating groove (602) is provided between the connecting block (601) and the top of the lever (6).
3. A watch with an easily replaceable case according to claim 2, characterized in that: The replacement component also includes a second slot (301), which has four slots, respectively located on both sides of the watch case (3). The positions of the second slots (301) correspond to the 2 o'clock, 4 o'clock, 8 o'clock and 10 o'clock positions of the dial (1). The locking lever (6) has three locking levers, which correspond to the 4 o'clock, 8 o'clock and 10 o'clock positions of the dial (1).
4. A watch with an easily replaceable case according to claim 3, characterized in that: The second slot (301) is fixedly connected to two sides by mating blocks (302), and the mating blocks (302) and the mating groove (602) of the lever (6) are interference-fitted to fix the watch core (2) in the dial (1).
5. A watch with an easily replaceable case according to claim 4, characterized in that: The end of the crown (7) is fixedly connected to a connecting block (601). A mating groove (602) is provided between the connecting block (601) and the top of the crown (7). The connecting block (601) is fixedly inserted into the inside of the movement (2) and connected to the internal mechanical structure of the movement (2) for adjusting the time on the dial (1). The mating block (302) and the mating groove (602) of the crown (7) are interference-fitted to fix the movement (2) in the dial (1).
6. A watch with an easily replaceable case according to claim 2, characterized in that: The watch core (2) has a first slot (202) on both sides, and the inner wall of the watch case (3) has a telescopic slot (304) on both sides. A compression spring (801) is fixedly connected to the bottom of the telescopic slot (304), and a spring post (8) is fixedly connected to the top of the compression spring (801). The first slot (202) and the spring post (8) cooperate to assist the second slot (301) and the locking rod (6) in fixing the watch core (2) and the dial (1).
7. A watch with an easily replaceable case according to claim 1, characterized in that: The top edge of the curved side of the watch core (2) is fixedly connected to a foolproof block (201), and the position of the foolproof block (201) corresponds to the 12 o'clock position of the dial (1).
8. A watch with an easily replaceable case according to claim 1, characterized in that: The bottom of the inner wall of the watch case (3) is provided with a foolproof opening (303). The foolproof opening (303) cooperates with the foolproof block (201) to ensure that the watch movement (2) is installed in the correct direction. The position of the foolproof opening (303) corresponds to the 12 o'clock position of the dial (1).