A smart watch multifunctional crown adjusting device

By using an interference fit between the inner shaft and the crown body, and a multi-point fixed connection with the protective case, the problems of unstable connection and cumbersome disassembly of traditional crown devices are solved, resulting in a highly reliable and long-life smartwatch adjustment device.

CN224501160UActive Publication Date: 2026-07-14深圳市海睿创科技有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
深圳市海睿创科技有限公司
Filing Date
2025-09-25
Publication Date
2026-07-14

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Abstract

The utility model relates to the technical field of crown adjusting device, concretely relates to a kind of multifunctional crown adjusting device of intelligent watch including shell, debugging hole and mounting hole are set in the side of shell, the outside of mounting hole is fixed with protective housing, the middle part of protective housing is fixed with crown structure, crown structure includes crown body, the connecting pipe fixed in the inboard of crown body and the inner shaft of the sleeve set in the outside of connecting pipe, inner shaft is set in the clearance between connecting pipe and crown body with interference, inner shaft and the structure in the inside of intelligent watch are connected with sleeve set, after interference contact with the ring of setting, the fixed setting of crown body and inner shaft can be realized, and the fine end of inner shaft and the structure in the inside of intelligent watch are fixedly set, so it can be realized to control effect inside by this interference setting mode, the protective housing structure of outside can be fixedly connected with the mounting hole in shell by multiple groups of connecting bolt structure, and the protective housing structure of outside can protect crown structure.
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Description

Technical Field

[0001] This utility model relates to the technical field of crown adjustment devices, specifically to a multi-functional crown adjustment device for smartwatches. Background Technology

[0002] The watch crown, also known as the "tips" or "crown," is a very important component of a watch. It is located on the side of the watch case and is mainly used to wind the mainspring of a manual-winding mechanical watch, as well as to adjust the time, date, and other complications, such as chronographs or world time. The proper use and maintenance of the crown is crucial for the long-term operation of the watch.

[0003] Traditional crown adjustment mechanisms have complex assembly structures, insufficient stability in the connection between the inner shaft and the crown body, and are mostly rigid contacts. This makes them prone to wear during adjustment, reducing accuracy and potentially causing component failure. Furthermore, the existing protective shell is not securely fixed to the main body, and may shift over time, further affecting the crown's function and failing to meet users' demands for high reliability and long lifespan in smartwatches.

[0004] Moreover, in actual use, due to the complex internal structure of watches, removing the crown for inspection or replacement is cumbersome and can easily damage the crown or movement due to improper operation. Utility Model Content

[0005] Technical problems to be solved

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a multi-functional crown adjustment device for smartwatches, which can effectively solve the problems in the existing technology.

[0007] Technical solution

[0008] This utility model provides a multi-functional crown adjustment device for a smartwatch, including a housing. One side of the housing has an adjustment hole and a mounting hole. A protective shell is fixed to the outside of the mounting hole. A crown structure is fixed to the middle of the protective shell. The crown structure includes a crown body, a connecting tube fixed to the inside of the crown body, and an inner shaft sleeved on the outside of the connecting tube. The inner shaft is interference-fitted into the gap between the connecting tube and the crown body, and is sleeved and connected to the internal structure of the smartwatch.

[0009] Furthermore, the outer side of the protective shell is provided with a threaded hole structure, and a connecting bolt is engaged and fixed in the threaded hole and the mounting hole. The middle part of the protective shell is provided with a groove structure with an inner diameter larger than the outer diameter of the crown body.

[0010] Furthermore, the inner shaft has a structure that is thinner on one side and thicker on the other side, and two retaining rings are fixed on the inner side of the crown body. The retaining rings are made of soft plastic, and the inner side of the retaining rings is in interference contact with the outer side of the inner shaft.

[0011] Furthermore, the connecting tube has a threaded hole in the middle, and the connecting tube and the crown body are an integral structure.

[0012] Furthermore, the connecting bolts are located at the four outer corners of the protective shell.

[0013] Beneficial effects

[0014] This invention features a crown body structure with an integrated fixed connecting tube. This structure, equipped with a locking ring, can be interference-fitted with the inner shaft. Since the inner shaft is thinner at the front and thicker at the rear, the interference fit with the locking ring secures the crown body to the inner shaft. The thinner end of the inner shaft is also fixed to the internal structure of the smartwatch. This interference fit allows for internal control. The outer protective shell structure is fixedly connected to the mounting holes in the casing via multiple sets of connecting bolts, thus protecting the crown structure.

[0015] In this device, the inner shaft is interference-fitted into the gap between the connecting tube and the crown body, and the two soft plastic retaining rings on the inner side of the crown body are interference-fitted with the outer side of the inner shaft. This double interference fit structure greatly improves the connection between the crown body and the inner shaft, effectively avoiding loosening and jamming after long-term use, and ensuring the smoothness and accuracy of adjustment operation. A protective shell is fixed at the mounting hole on the outer side of the housing. The inner diameter of the groove structure in the middle of the protective shell is larger than the outer diameter of the crown body. This provides circumferential protection for the crown body, reducing the impact of external force on the internal components, without affecting the normal adjustment operation of the crown. At the same time, the protective shell is fixed by the connecting bolts at the four corners on the outer side engaging with the mounting holes and threaded holes. The connection method is stable and reliable, further enhancing the impact resistance of the overall structure. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2This is a front view of the structure of this utility model;

[0019] Figure 3 This is an exploded view of the structure of this utility model;

[0020] Figure 4 This is a cross-sectional exploded view of the present invention;

[0021] Figure 5 This is a structural exploded view of the crown structure in this utility model.

[0022] The labels in the diagram represent: 1. Housing; 11. Adjustment hole; 12. Mounting hole; 2. Protective shell; 21. Connecting bolt; 3. Crown structure; 31. Crown body; 32. Inner shaft; 33. Connecting tube; 34. Locking ring. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

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

[0025] Example: A multi-functional crown adjustment device for a smartwatch, as shown in the attached document. Figure 1 -Appendix Figure 5 The housing 1 has an adjustment hole 11 and a mounting hole 12 on one side. A protective shell 2 is fixed to the outside of the mounting hole 12. A crown structure 3 is fixed to the middle of the protective shell 2. The crown structure 3 includes a crown body 31, a connecting tube 33 fixed to the inside of the crown body 31, and an inner shaft 32 sleeved on the outside of the connecting tube 33. The inner shaft 32 is interference-fitted into the gap between the connecting tube 33 and the crown body 31. The inner shaft 32 is sleeved and connected to the structure inside the smartwatch.

[0026] The outer side of the protective shell 2 has a threaded hole structure, and the threaded hole and the mounting hole 12 are engaged and fixed with a connecting bolt 21. The middle part of the protective shell 2 has a groove structure with an inner diameter larger than the outer diameter of the crown body 31. The crown body 31 structure, which is connected by an integral fixed connecting tube 33, can be interference-fitted with the inner shaft 32 through the structure with a locking ring 34. Since the inner shaft 32 has a structure that is thin at the front end and thick at the rear end, after interference contact with the locking ring 34, the crown body 31 and the inner shaft 32 can be fixedly locked. The thin end of the inner shaft 32 is fixedly locked with the structure inside the smartwatch. Therefore, the internal control effect can be achieved through this interference-fitting method. The outer protective shell 2 structure can be fixedly connected to the mounting hole 12 in the shell 1 through multiple sets of connecting bolts 21. The outer protective shell 2 structure can protect the crown structure 3.

[0027] The inner shaft 32 has a structure that is thinner on one side and thicker on the other. Two retaining rings 34, made of soft plastic, are fixed to the inner side of the crown body 31. The inner side of the retaining rings 34 is in interference contact with the outer side of the inner shaft 32. A threaded hole is provided in the middle of the connecting tube 33, and the connecting tube 33 and the crown body 31 are an integral structure. The inner shaft 32 is interference-fitted in the gap between the connecting tube 33 and the crown body 31, and the two soft plastic retaining rings 34 on the inner side of the crown body 31 are in interference contact with the outer side of the inner shaft 32. This double interference fit structure significantly improves the fit between the crown body 31 and the inner shaft 32. The robust connection of the housing 2 effectively avoids loosening and jamming after long-term use, ensuring smooth and accurate adjustment operations. A protective shell 2 is fixed at the mounting hole 12 on the outside of the housing 1. The inner diameter of the groove structure in the middle of the protective shell 2 is larger than the outer diameter of the crown body 31. This provides circumferential protection for the crown body 31, reducing the impact of external forces on the internal components, without affecting the normal adjustment operation of the crown. At the same time, the protective shell 2 is fixed to the mounting hole 12 and the threaded hole by the connecting bolts 21 at the four corners on the outside. The connection method is stable and reliable, further enhancing the impact resistance of the overall structure.

[0028] Connecting bolts 21 are located at the four outer corners of the protective shell 2; the connecting tube 33 and the crown body 31 adopt an integrated structural design, which not only simplifies the assembly process but also improves the connection strength between the two, reducing the risk of damage caused by weak connections between components; the inner shaft 32 adopts a structure that is thin on one side and thick on the other side, which is adapted to the internal connection requirements of the smartwatch. While ensuring connection stability, it optimizes the force transmission path and reduces component wear during the adjustment process; the protective shell 2 and the shell 1 are fixed by bolt engagement, and the interference fit structure between the inner shaft 32 and the crown body 31 does not require complex assembly tools. The overall assembly process is simple and efficient, which helps to improve production efficiency and reduce manufacturing costs.

[0029] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A multi-functional crown adjustment device for a smartwatch, characterized in that, The watch includes a housing (1), on one side of which are an adjustment hole (11) and a mounting hole (12). A protective shell (2) is fixed to the outside of the mounting hole (12). A crown structure (3) is fixed to the middle of the protective shell (2). The crown structure (3) includes a crown body (31), a connecting tube (33) fixed to the inside of the crown body (31), and an inner shaft (32) sleeved on the outside of the connecting tube (33). The inner shaft (32) is interference-fitted into the gap between the connecting tube (33) and the crown body (31). The inner shaft (32) is sleeved and connected to the structure inside the smartwatch.

2. The multi-functional crown adjustment device for a smartwatch according to claim 1, characterized in that, The outer side of the protective shell (2) is provided with a threaded hole structure, and the threaded hole and the mounting hole (12) are engaged and fixed with a connecting bolt (21), and the middle part of the protective shell (2) is provided with a groove structure with an inner diameter larger than the outer diameter of the crown body (31).

3. The multi-functional crown adjustment device for a smartwatch according to claim 1, characterized in that, The inner shaft (32) has a structure that is thin on one side and thick on the other side, and two retaining rings (34) are fixed on the inner side of the crown body (31). The retaining rings (34) are made of soft plastic material, and the inner side of the retaining rings (34) is in interference contact with the outer side of the inner shaft (32).

4. The multi-functional crown adjustment device for a smartwatch according to claim 1, characterized in that, The connecting tube (33) has a threaded hole structure in the middle, and the connecting tube (33) and the crown body (31) are an integral structure.

5. The multi-functional crown adjustment device for a smartwatch according to claim 2, characterized in that, The connecting bolts (21) are located at the four outer corners of the protective shell (2).