Watch case

Abstract

The watch case comprises a watch case body and further comprises a buckle ring detachably arranged on the watch case body, the watch case body comprises a ring body used for installing a dial plate and watch lugs arranged on the two sides of the ring body, and limiting cavities are formed between the two watch lugs and the outer circumferential wall of the ring body; the buckle ring and the watchcase body can be coaxially assembled together through the two limiting cavities, and the buckle ring is assembled on one side, corresponding to the surface of a dial plate, of the watchcase body; the watch shell is divided into the watch shell body and the buckling ring which are detachably connected, the watch shell body and the buckling ring can be machined through different technologies, the buckling ring can be machined into more different appearances, meanwhile, high machining precision can be kept, the appearance requirement and the function requirement are perfectly combined, the machining difficulty is reduced, and the machining efficiency is improved. Moreover, the processing cost is reduced, and the requirements of the market for high-quality watches are better met.

Description

Technical Field

[0001] The invention relates to the field of watches, and in particular to a watch shell. Background Art

[0002] In the field of watch manufacturing, watch cases are usually made of metal. Due to its high precision requirements, the manufacturing process is extremely difficult. Especially in the processing process involving small-angle turning points, the technical challenges are more significant. The cutting process at these turning points is prone to incomplete cutting or blurred contours, resulting in reduced product quality. In addition, traditional processing technology often cannot achieve sharp edge structures when processing circular, square and other structures, affecting the appearance. When processing the above features, due to the difficulty of processing, it also leads to a significant increase in production costs, which poses a challenge to the market competitiveness of watch manufacturers. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is: to provide a watch case having a case body and a buckle ring that can be detachably connected, and the buckle ring can be designed with different appearance styles according to needs to simultaneously meet the aesthetics of the case and the precision of processing.

[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is: providing a watch case, including a case body, and also including a buckle ring detachably arranged on the case body, the case body includes a ring body for mounting a dial and lugs arranged on both sides of the ring body, and limiting cavities are formed between the two lugs and the outer peripheral wall of the ring body. The buckle ring can be coaxially assembled with the case body through the two limiting cavities, and the buckle ring is assembled on the side of the case body corresponding to the dial surface.

[0005] Furthermore, flanges are respectively provided on both lateral sides of the ring body, and the flanges are formed by the outer peripheral wall of the ring body extending radially outward, and the height of the flanges is smaller than the height of the ring body. The two lugs are respectively arranged on the outer side surfaces of the two flanges and the height of the lugs is greater than the height of the flanges. The inner side surfaces of the lugs, the outer peripheral wall of the ring body and the side of the flange facing the dial surface jointly enclose the limiting cavity, and the size of the buckle ring matches the inner diameter of the limiting cavity so that it can be limited in the limiting cavity.

[0006] Furthermore, the two flanges are distributed along the circumference of the ring body and two gaps along the circumference of the ring body are formed between the two flanges. Two convex portions are protruding from one axial side of the buckle ring. The two convex portions present an arc that matches the buckle ring, and the circumferential size of the convex portions is the same as the circumferential size of the gap. The two convex portions can be respectively clamped in the two gaps to be attached to the outer side of the ring body at the gap.

[0007] Furthermore, the outer wall of the ring body is provided with protruding blocks at the positions corresponding to the two gaps, and the inner walls of the two protrusions are provided with recessed grooves that can engage with the blocks at the positions corresponding to the blocks. When the buckle ring is clamped on the watch case body, the block is clamped in the corresponding groove to limit the buckle ring.

[0008] Furthermore, each of the two protrusions is processed with a first arc chamfer on both circumferential sides, and each of the two flanges is processed with a first arc groove matching the first arc chamfer on both circumferential sides. When the buckle ring is clamped on the watch case body, each of the first arc chamfers is tightly fitted with the groove wall of the corresponding first arc groove.

[0009] Furthermore, a groove is formed on the bottom wall of at least one of the limiting cavities in a direction away from the buckle ring, and a protrusion that can be snap-fitted with the groove is formed on an end surface of the buckle ring extending into the limiting cavity.

[0010] Furthermore, the two lugs are detachably connected to the corresponding flanges, and a connecting structure capable of connecting the lug and the flange together is provided between each lug and the corresponding flange.

[0011] Furthermore, the connecting structure includes a boss, a hemisphere arranged on the boss, and an elastic member, the boss is arranged on the side of the lug facing the flange along the height direction of the lug, a first slide groove is provided at the end of the boss, the hemisphere is slidably assembled in the first slide groove and can extend outward from the first slide groove, the elastic member is installed between the bottom wall of the first slide groove and one end of the hemisphere extending into the first slide groove, the flange is provided with a groove for the boss to extend into at the position corresponding to the boss, and an arc groove for the hemisphere to be accommodated therein is provided at the end of the groove.

[0012] Furthermore, a convex edge is provided at the position where the first slide groove passes through the end of the boss, and the convex edge is formed by extending radially inward from the notch of the first slide groove, and the inner diameter of the convex edge matches the outer diameter of the hemisphere, and a sliding plate is provided at the end of the hemisphere extending into the first slide groove, and the outer diameter of the sliding plate matches the inner diameter of the first slide groove and is slidably connected to the first slide groove, and one end of the elastic member is connected to the bottom wall of the first slide groove, and the other end is connected to an end surface of the sliding plate away from the hemisphere.

[0013] Furthermore, the connection structure also includes a limiting component for preventing the hemisphere from being retracted into the first slide groove, the limiting component includes a push rod, a second slide groove is jointly provided in the lug and the boss, the second slide groove is connected to the first slide groove, the push rod slides in the second slide groove and can slide into or out of the first slide groove through the second slide groove, and when the push rod slides into the first slide groove, it can abut against the side of the slide extending into the first slide groove so that the hemisphere cannot be retracted into the first slide groove.

[0014] The watch case of the present invention has at least the following beneficial effects: the watch case is split into a detachably connected case body and a buckle ring, the case body and the buckle ring can be processed by different processes respectively, the buckle ring can be processed into more different appearances, and the processing can also maintain high precision, perfectly combining the requirements of appearance with the requirements of function, reducing the processing difficulty and the processing cost, and further meeting the market demand for high-quality watches. At the same time, the case body can also be split into a ring body and lugs, avoiding the process problem of insufficient processing precision when the ring body and the lugs are connected as one, and further improving the processing precision and the aesthetics of the case body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 It is a structural schematic diagram of Embodiment 1 of a watch housing of the present invention;

[0017] Figure 2 It is a structural explosion diagram of the first embodiment of the watch housing of the present invention;

[0018] Figure 3 A schematic structural diagram of a buckle ring in a first embodiment of a watch housing of the present invention;

[0019] Figure 4 It is a structural explosion diagram of the second embodiment of the watch housing of the present invention;

[0020] Figure 5A partial cross-sectional view of a second embodiment of a watch housing of the present invention;

[0021] Figure 6 It is a partial cross-sectional view of the second embodiment of the watch housing of the present invention.

[0022] The meanings of the symbols in the accompanying drawings are:

[0023] Case body 1, ring body 11, first mounting hole 111, second mounting hole 112, mounting groove 113, flange 114, first arc groove 1141, clamping block 115, lug 12, groove 13, second arc groove 131, buckle ring 2, protrusion 21, second arc chamfer 211, sound hole 22, protrusion 23, clamping groove 231, first arc chamfer 232;

[0024] The connecting structure 3 , the boss 31 , the first sliding groove 311 , the convex edge 312 , the hemisphere 32 , the elastic member 33 , the channel 34 , the arc groove 341 , the sliding piece 35 , the stop rod 36 , the limiting block 361 , the second sliding groove 37 , the limiting groove 371 , and the paddle 38 . DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] Embodiment 1:

[0027] Please refer to Figure 1 , Figure 2 and Figure 3 The watch case of the present invention comprises a case body 1 and a buckle ring 2 detachably arranged on the case body 1. The buckle ring 2 can be processed differently as needed to form different appearances, and can form watch cases with different appearances after being assembled with the case body 1.

[0028] The watch case body 1 comprises a ring body 11 for mounting a dial and lugs 12 arranged on both sides of the ring body 11. The middle part of the ring body 11 is used to mount the dial of the watch. The ring body 11 is provided with a first mounting hole 111 for mounting a waterproof foam, and the first mounting hole 111 radially penetrates the side wall of the ring body 11; the ring body 11 is also provided with a second mounting hole 112 for making way for the buttons on the side of the dial, and the second mounting hole 112 radially penetrates the side wall of the ring body 11. The inner peripheral wall of the ring body 11 is also provided with a plurality of mounting grooves 113 for the dial to be clamped therein. Flanges 114 for connecting the lugs 12 are respectively provided on both sides of the ring body 11 in the transverse direction. The two flanges 114 are arranged symmetrically with each other, and each flange 114 is formed by the outer peripheral wall of the ring body 11 extending radially outward, and the height of the flange 114 is less than the height of the ring body 11. The two flanges 114 are distributed along the circumference of the ring body 11, and the two flanges 114 are not connected to each other, that is, two gaps along the circumference of the ring body 11 are formed between the two flanges 114. Blocks 115 are protrudingly provided at the positions of the outer circumferential wall of the ring body 11 corresponding to the two gaps, and the blocks 115 are used to cooperate and fix the buckle ring 2. The two lugs 12 are respectively arranged on the outer side surfaces of the two flanges 114, and the height of the lugs 12 is greater than the height of the flanges 114. The inner side surface of the lug 12, the outer circumferential wall of the ring body 11, and the side of the flange 114 facing the dial surface together enclose a limiting cavity for limiting the buckle ring 2. That is, two limiting cavities are formed between the two lugs 12, the ring body 11, and the corresponding flanges 114. A groove 13 is formed on the bottom wall of at least one of the limiting cavities in a direction away from the buckle ring 2. The groove 13 is opened along the circumference of the flange 114. There may be a plurality of grooves 13, which are spaced apart along the circumference of the flange 114. A second arc groove 131 is machined at the circumferential end of each groove 13.

[0029] The buckle ring 2 is detachably arranged on the side of the case body 1 facing the dial surface. The size of the buckle ring 2 matches the inner diameter of the limiting cavity so that it can be limited in the limiting cavity. The end surface of the buckle ring 2 extending into the limiting cavity is convexly provided with a convex block 21 that can be snap-fitted with the groove 13. The convex blocks 21 have a plurality of one-to-one correspondence with the plurality of grooves 13. The circumferential end of each convex block 21 is processed with a second arc chamfer 211 that matches the second arc groove 131. The side wall of the buckle ring 2 is provided with a sound hole 22. When the dial is an electronic dial, the sound hole 22 is used to transmit the sound of the electronic dial. On the axial side of the buckle ring 2, specifically, on the side of the buckle ring 2 facing the flange 114, corresponding to the positions of the two gaps, two convex portions 23 are convexly provided. The two convex portions 23 both present an arc that matches the buckle ring 2 and the inner diameter and outer diameter of the convex portion 23 also match the inner diameter and outer diameter of the buckle ring 2. The size of the two protrusions 23 in the circumferential direction is the same as the size of the gap in the circumferential direction, so that the two protrusions 23 can be respectively clamped in the two gaps to be attached to the outer side of the ring body 11 at the gaps. The inner circumferential walls of the two protrusions 23 are concavely provided with a clamping groove 231 that can be engaged with the clamping block 115 at the position corresponding to the clamping block 115. When the buckle ring 2 is clamped on the watch case body 1, the clamping block 115 is clamped in the corresponding clamping groove 231 to limit the buckle ring 2. Each of the two protrusions 23 is processed with a first circular chamfer 232 on both circumferential sides, and each of the two flanges is processed with a first circular arc groove 1141 on both circumferential sides. The first circular arc chamfer 232 matches the first circular arc groove 1141. When the buckle ring 2 is clamped on the watch case body 1, each of the first circular arc chamfer 232 is tightly fitted with the groove wall of the corresponding first circular arc groove 1141.

[0030] Replacing the originally sharp edges with curved edges such as the first arc chamfer 232 and the first arc groove 1141 and the second arc chamfer 211 and the second arc groove 131 can bring many benefits, including but not limited to: the curved edges (i.e., rounded edges) can better disperse stress and reduce stress concentration, while sharp corners are very likely to cause stress concentration when subjected to force; sharp edges are more likely to have burrs and unevenness during processing, while rounded edges will not have this problem; sharp edges may be difficult to align and insert during assembly, especially for more delicate components such as watch cases, while rounded edges have smooth transitions and are easier to achieve precise insertion.

[0031] The working method of the embodiment 1 of the watch case of the present invention is as follows: when processing the watch case of the present invention, the case body 1 and the buckle ring 2 should be processed separately, and then the two should be combined. When combining, the case body 1 is first fixed on the workbench, and then the bottom wall of the limiting cavity is coated with glue, and then the buckle ring 2 is buckled into the limiting cavity. When the buckle ring 2 is buckled into the limiting cavity, the lower end surface of the buckle ring 2 (taking the attached figure as an example) fits with the bottom wall of the limiting cavity, the protrusion 21 extends into the groove 13, and the two protrusions 23 are respectively clamped in the two gaps, and the clamping block 115 is clamped in the corresponding clamping groove 231. It should be emphasized that the design of the groove 13 and the protrusion 21 can increase the contact area between the buckle ring 2 and the case body 1, making the connection between the two more stable. Finally, the buckle ring 2 and the case body 1 that are clamped together are fixed by hot pressing.

[0032] Based on the above-mentioned embodiments, the watch case of the present invention has the following beneficial effects: compared with the prior art, the watch case is split into a detachably connected case body and a buckle ring, the case body and the buckle ring can be processed respectively using different processes, the buckle ring can be processed into more different appearances, and the processing can also maintain a very high precision, perfectly combining the appearance requirements with the functional requirements, reducing the processing difficulty, reducing the processing cost, and better meeting the market demand for high-quality watches.

[0033] Embodiment 2:

[0034] This embodiment is based on the above embodiment 1, so that the two lugs 12 are detachably connected to the corresponding flanges 114. Please refer to Figure 4 , Figure 5 and Figure 6 A connection structure 3 is provided between each lug 12 and the corresponding flange 114, which can connect the lug 12 and the flange 114. Each connection structure 3 includes a boss 31, a hemisphere 32 provided on the boss 31, and an elastic member 33. The boss 31 is semi-cylindrical, and is provided on the side of the lug 12 facing the flange 114 along the height direction of the lug 12. The flange 114 is provided with a groove 34 at a position corresponding to the boss 31, into which the boss 31 extends.

[0035] Both ends of the protruding column 31 are provided with a first slide groove 311, which is formed by the end of the protruding column 31 being recessed toward the other end. A convex edge 312 is provided at the position where the first slide groove 311 passes through the corresponding end of the protruding column 31, and the convex edge 312 is formed by the notch of the first slide groove 311 extending radially inward. The hemisphere 32 is slidably arranged in the first slide groove 311 through a slide plate 35. The hemisphere 32 is fixedly arranged on an axial side surface of the slide plate 35 and is coaxial with the slide plate 35, and the hemisphere 32 protrudes in an arc shape in a direction away from the slide plate 35. The outer diameter of the slide plate 35 matches the inner diameter of the first slide groove 311, and the outer diameter of the hemisphere 32 is smaller than the outer diameter of the slide plate 35. Specifically, the outer diameter of the hemisphere 32 matches the inner diameter of the convex edge 312. When the slide 35 and the hemisphere 32 are installed in the first slide groove 311, the slide 35 is slidably connected with the first slide groove 311, and the hemisphere 32 can extend out of the first slide groove 311 through the middle space of the convex edge 312. One end of the elastic member 33 is connected to the bottom wall of the first slide groove 311, and the other end is connected to an end surface of the slide 35 away from the hemisphere 32. In the embodiment shown, the elastic member 33 is a coil spring, and the function of the elastic member 33 is: when the slide 35 and the hemisphere 32 are squeezed into the first slide groove 311, the slide 35 and the hemisphere 32 are driven to reset. Therefore, in other embodiments, the elastic member 33 can also be a spring sheet or other elastic element, as long as it can drive the slide 35 and the hemisphere 32 to reset. An arc groove 341 is opened at the end of the channel 34, and the size of the arc groove 341 matches the hemisphere 32 so that the hemisphere 32 can be accommodated therein.

[0036] Each of the connection structures 3 further includes a limiting assembly for preventing the hemisphere 32 from being retracted into the first slide groove 311. The limiting assembly includes a push rod 36. A second slide groove 37 is provided in both the lug 12 and the boss 31, and the second slide groove 37 is connected to both of the first slide grooves 311 in the boss 31. The push rod 36 slides in the second slide groove 37 and can slide into or out of the two first slide grooves 311 through the second slide groove 37. When the push rod 36 slides into the first slide groove 311, it can abut against one side of the two slide sheets 35 extending into the first slide groove 311 so that the two hemispheres 32 cannot be retracted into the first slide groove 311. One end of the push rod 36 away from the slide 35 extends out of the second slide slot 37 and is exposed on the outer side wall of the lug 12. One end of the push rod 36 extending out of the second slide slot 37 is provided with a paddle 38. The width and height of the paddle 38 are both greater than the push rod 36, so that the user can move the push rod 36 by paddle 38. A side wall of the second slide slot 37 is provided with a limiting groove 371 along the sliding direction of the push rod 36. A limiting block 361 is convexly provided at the position of the push rod 36 corresponding to the limiting groove 371. The limiting block 361 is slidably connected to the limiting groove 371. The limiting block 361 cooperates with the limiting groove 371 to prevent the push rod 36 from slipping out of the second slide slot 37. Further, in order to make the connection between the lug 12 and the flange 114 more stable, multiple groups of the connection structures 3 can be provided between each lug 12 and the corresponding flange 114.

[0037] The working method of the second embodiment of the watch case of the present invention is as follows: In this embodiment, the lug 12 is detachable relative to the ring body 11, which enables the lug 12 to be processed into a more diverse appearance by more complex processes. At the same time, the detachable connection of the lug 12 also facilitates the user to disassemble the case body 1 for separate maintenance or cleaning. When we want to install the lug 12 on the ring body 11, the operation steps are as follows: Use the paddle 38 to poke the push rod 36 to the end of the second slide groove 37 away from the first slide groove 311, at which time the two slides 35 can move freely along their own stroke. The lug 12 is moved close to the ring body 11 with the boss 31 aligned with the groove 34 until the boss 31 extends into the groove 34, and the two hemispheres 32 are retracted into the first slide groove 311 under the pressure of the end wall of the groove 34, and the elastic member 33 is compressed. When the first slide groove 311 is aligned with the arc groove 341, the hemisphere 32 pops out of the first slide groove 311 under the rebound force of the elastic member 33 and is stuck in the arc groove 341. Finally, the paddle 38 is moved to move the stopper 36 between the two slides 35. At this time, the slide 35 cannot slide in the first slide groove 311, and the hemisphere 32 is fixed in the arc groove 341.

[0038] To remove the watch lug 12 , just follow the above steps in reverse order.

[0039] Based on the above embodiments, the watch case of the present invention has the following beneficial effects: on the basis of Example 1, this embodiment further realizes a detachable connection between the lugs and the ring body, avoiding the process difficulty of insufficient processing accuracy when the ring body and the lugs are connected as one, improving the processing accuracy, and the lugs can be replaced with different colors and styles as needed, thereby improving the aesthetics of the case body, and the disassembly and assembly process is simple and convenient.

Claims

1. A watch case, comprising a case body, characterized in that: It also includes a buckle ring detachably arranged on the case body, the case body includes a ring body for mounting a dial and lugs arranged on both sides of the ring body, and limiting cavities are formed between the two lugs and the outer peripheral wall of the ring body. The buckle ring can be coaxially assembled with the case body through the two limiting cavities, and the buckle ring is assembled on the side of the case body corresponding to the dial surface.

2. The watch case according to claim 1, characterized in that: Flanges are respectively provided on the two lateral sides of the ring body, and the flanges are formed by the outer peripheral wall of the ring body extending radially outwardly, and the height of the flanges is smaller than the height of the ring body. The two lugs are respectively arranged on the outer side surfaces of the two flanges and the height of the lugs is greater than the height of the flanges. The inner side surfaces of the lugs, the outer peripheral wall of the ring body and the side of the flange facing the dial surface together enclose the limiting cavity, and the size of the buckle ring matches the inner diameter of the limiting cavity so that it can be limited in the limiting cavity.

3. The watch case according to claim 2, characterized in that: The two flanges are distributed along the circumference of the ring body and two gaps along the circumference of the ring body are formed between the two flanges. Two convex portions are protruding from one axial side of the buckle ring. The two convex portions present an arc that matches the buckle ring, and the circumferential size of the convex portions is the same as the circumferential size of the gaps. The two convex portions can be respectively clamped in the two gaps to be attached to the outer side of the ring body at the gaps.

4. The watch case according to claim 3, characterized in that: The outer wall of the ring body is provided with blocks at positions corresponding to the two gaps, and the inner walls of the two protrusions are provided with grooves that can engage with the blocks at positions corresponding to the blocks. When the buckle ring is clamped on the watch case body, the block is clamped in the corresponding groove to limit the buckle ring.

5. The watch case according to claim 3, characterized in that: Each of the two protrusions is processed with a first arc chamfer on both sides of the circumference, and each of the two flanges is processed with a first arc groove matching the first arc chamfer on both sides of the circumference. When the buckle ring is clamped on the watch case body, each of the first arc chamfers is tightly fitted with the groove wall of the corresponding first arc groove.

6. The watch case according to claim 2, characterized in that: A groove is formed on the bottom wall of at least one of the limiting cavities in a direction away from the buckle ring, and a protrusion that can be snap-fitted with the groove is formed on one end surface of the buckle ring extending into the limiting cavity.

7. The watch case according to claim 2, characterized in that: The two lugs are detachably connected to the corresponding flanges, and a connecting structure capable of connecting the lug and the flange is provided between each lug and the corresponding flange.

8. The watch case according to claim 7, characterized in that: The connecting structure includes a boss, a hemisphere arranged on the boss, and an elastic member. The boss is arranged on the side of the lug facing the flange along the height direction of the lug. A first slide groove is provided at the end of the boss. The hemisphere is slidably assembled in the first slide groove and can extend outward from the first slide groove. The elastic member is installed between the bottom wall of the first slide groove and one end of the hemisphere extending into the first slide groove. A groove for the boss to extend into is provided at the position of the flange corresponding to the boss, and an arc groove for the hemisphere to be accommodated therein is provided at the end of the groove.

9. The watch case according to claim 8, characterized in that: A convex edge is provided at the position where the first slide groove passes through the end of the boss, and the convex edge is formed by extending radially inward from the notch of the first slide groove, and the inner diameter of the convex edge matches the outer diameter of the hemisphere, and a sliding plate is provided at the end of the hemisphere extending into the first slide groove, and the outer diameter of the sliding plate matches the inner diameter of the first slide groove and is slidably connected to the first slide groove, and one end of the elastic member is connected to the bottom wall of the first slide groove, and the other end is connected to an end surface of the sliding plate away from the hemisphere.

10. The watch case according to claim 8, characterized in that: The connection structure also includes a limiting component for preventing the hemisphere from being retracted into the first slide groove, the limiting component includes a push rod, a second slide groove is jointly provided in the lug and the boss, the second slide groove is connected to the first slide groove, the push rod slides in the second slide groove and can slide into or out of the first slide groove through the second slide groove, and when the push rod slides into the first slide groove, it can abut against the side of the slide sheet extending into the first slide groove so that the hemisphere cannot be retracted into the first slide groove.

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