A watch case that is easy to weld and prevents the bezel from falling off.

Abstract

This utility model discloses a watch case that is easy to weld and prevents the upper bezel from falling off. Belonging to the field of watch case manufacturing technology, it includes a watch case body. An installation mechanism is fixedly connected to the upper surface of the watch case body, and a covering mechanism is attached to the upper surface of the watch case body. Two sets of symmetrical annular limiting steps and two sets of limiting protrusions are provided on the watch case body. Corresponding positioning grooves and limiting grooves are opened on the upper bezel for welding. During installation, the positioning grooves and limiting protrusions precisely match, and the limiting grooves and annular limiting steps slide together. This dual positioning quickly fixes the upper bezel in a preset position, preventing displacement before welding and significantly improving the convenience and efficiency of welding operations. During welding, the annular limiting steps and limiting protrusions continuously support and limit the bezel, preventing displacement during welding, ensuring welding accuracy, laying the foundation for subsequent stable connection, and reducing the rework rate caused by inaccurate positioning.

Description

Technical Field

[0001] This utility model relates to the field of watch case manufacturing technology, specifically a watch case that is easy to weld and can prevent the bezel from falling off. Background Technology

[0002] In the watchmaking industry, the watch case, as a core load-bearing component, directly affects the overall quality and production efficiency of the watch due to its structural stability and ease of assembly.

[0003] Traditional watch cases do not have a dedicated positioning structure. When welding and installing the bezel, workers have to manually align the relative positions of the bezel and the watch case. This is not only cumbersome, but also prone to radial or axial misalignment of the bezel due to manual operation errors. Under this positioning method, workers often need to repeatedly adjust the position of the bezel, which greatly prolongs the preparation time before welding and reduces the overall production efficiency.

[0004] Therefore, this utility model provides a watch case that is easy to weld and can prevent the upper bezel from falling off, in order to solve the above problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a watch case that is easy to weld and prevents the upper bezel from falling off, thus solving the aforementioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a watch case that is easy to weld and prevents the upper bezel from falling off, comprising a watch case body, an installation mechanism fixedly connected to the upper surface of the watch case body, and a covering mechanism attached to the upper surface of the watch case body. The installation mechanism includes an annular limiting step and a limiting protrusion fixedly connected to the upper surface of the watch case body, and a welding upper bezel is attached to the upper surfaces of the annular limiting step and the limiting protrusion. The outer surface of the welding upper bezel is welded to the upper surface of the watch case body. The covering mechanism includes a bezel attached to the upper surface of the watch case body. The lower surface of the upper welding ring is provided with a positioning groove corresponding to the position of the limiting protrusion, and there are two sets of the limiting protrusion. The limiting protrusion is fixedly connected to the upper surface of the watch case body. A limiting groove is provided on the lower inner side of the welding ring, and the outer surface of the limiting groove is slidably connected to the outer surface of the annular limiting step.

[0007] Furthermore, two sets of the annular limiting steps are provided, and the two sets of the annular limiting steps are symmetrically arranged on the upper surface of the watch case body.

[0008] By adopting the above technical solution, two sets of symmetrical annular limiting steps can be welded from both sides to form a balanced support and limit, avoiding the problem of uneven force on the upper ring caused by unilateral limiting.

[0009] Furthermore, a mounting groove is provided on the lower inner side of the bezel, and a gap is left between the mounting groove and the lower outer surface of the welded upper bezel.

[0010] By adopting the above technical solution, a gap is reserved between the installation groove and the welding ring, which facilitates the sealing of the welding joint.

[0011] Furthermore, the lower surface of the bezel is coated with an adhesive layer, and the lower surface of the adhesive layer is adhered to the upper surface of the watch case body.

[0012] By adopting the above technical solution, the bezel can be firmly attached to the watch case body through the adhesive layer, forming a secondary fixing structure. This, together with the welded connection of the upper bezel, provides double protection, further enhancing the overall sealing and stability of the watch case. Beneficial effects

[0013] This invention provides a watch case that is easy to weld and prevents the bezel from falling off. Compared with the prior art, it has the following advantages: 1. This watch case, which facilitates welding and prevents the upper bezel from detaching, features two sets of symmetrical annular limiting steps and two sets of limiting protrusions on the case body. The upper bezel is fitted with corresponding positioning grooves and limiting grooves. During installation, the positioning grooves and limiting protrusions precisely engage, while the limiting grooves and annular limiting steps slide together. This dual positioning quickly fixes the upper bezel in the preset position, preventing displacement before welding and significantly improving the convenience and efficiency of welding operations. During welding, the annular limiting steps and limiting protrusions continuously support and limit the upper bezel, preventing it from shifting during welding, ensuring welding accuracy, laying the foundation for subsequent stable connections, and reducing rework rates caused by inaccurate positioning.

[0014] 2. This watch case, which is easy to weld and prevents the bezel from falling off, forms a first rigid connection by welding the outer surface of the bezel to the watch case body, preventing the bezel from falling off. The lower surface of the bezel is coated with an adhesive layer and pasted to the watch case body, forming a secondary fixation. This double protection enhances the overall connection strength. At the same time, the gap between the bezel mounting groove and the welded bezel facilitates the sealing of the welding joint. The adhesive layer can also further improve the watch case's sealing performance and reduce the intrusion of dust and moisture. Attached Figure Description

[0015] 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 from these drawings without creative effort.

[0016] Figure 1 This is a perspective view of the external structure of this utility model; Figure 2 This is an exploded structural diagram of the present invention; Figure 3 This is a schematic diagram of the exploded cross-section structure of this utility model; Figure 4 This is a side sectional view of the structure of this utility model.

[0017] In the diagram: 1. Watch case body; 2. Covering mechanism; 201. Bezel; 202. Mounting groove; 203. Adhesive layer; 3. Mounting mechanism; 301. Annular limiting step; 302. Welded upper bezel; 303. Limiting protrusion; 304. Limiting groove; 305. Positioning groove. Detailed Implementation

[0018] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," 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 application 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 application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0019] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0020] Reference Figures 1 to 4 This application provides a watch case that is easy to weld and can prevent the upper bezel from falling off. It includes a watch case body 1, an installation mechanism 3 is fixedly connected to the upper surface of the watch case body 1, and a covering mechanism 2 is attached to the upper surface of the watch case body 1. The installation mechanism 3 includes an annular limiting step 301 and a limiting protrusion 303 fixedly connected to the upper surface of the watch case body 1. The upper surface of the annular limiting step 301 and the limiting protrusion 303 is attached to a welding upper bezel 302. The outer surface of the welding upper bezel 302 is welded to the upper surface of the watch case body 1. The lower surface of the welding upper bezel 302 is provided with a positioning groove 305 corresponding to the position of the limiting protrusion 303. The limiting protrusion 303 is provided with two sets of fixed connections to the upper surface of the watch case body 1. The covering mechanism 2 includes a bezel 201 attached to the upper surface of the watch case body 1.

[0021] Furthermore, a limiting groove 304 is provided on the inner side below the upper ring 302. The outer surface of the limiting groove 304 is slidably connected to the outer surface of the annular limiting step 301. Two sets of annular limiting steps 301 are provided, and the two sets of annular limiting steps 301 are symmetrically arranged on the upper surface of the watch case body 1.

[0022] In this embodiment, two sets of symmetrical annular limiting steps 301 and two sets of limiting protrusions 303 are provided on the main body 1 of the watch case. The upper ring 302 is welded with corresponding positioning grooves 305 and limiting grooves 304. During installation, the positioning grooves 305 and limiting protrusions 303 are precisely matched, and the limiting grooves 304 and annular limiting steps 301 are slidably connected. The dual positioning can quickly fix the upper ring 302 in the preset position, avoid displacement before welding, and greatly improve the convenience and efficiency of welding operation. During the welding process, the annular limiting steps 301 and limiting protrusions 303 continuously support and limit, preventing the upper ring from shifting during welding, ensuring welding accuracy, laying the foundation for subsequent stable connection, and reducing the rework rate caused by inaccurate positioning.

[0023] Reference Figures 1 to 4 In one aspect of this embodiment, a mounting groove 202 is provided on the lower inner side of the bezel 201, and a gap is left between the mounting groove 202 and the lower outer surface of the welded upper ring 302.

[0024] Furthermore, the lower surface of the bezel 201 is coated with an adhesive layer 203, and the lower surface of the adhesive layer 203 is adhered to the upper surface of the watch case body 1.

[0025] In this embodiment, the outer surface of the upper bezel 302 is welded to the watch case body 1 to form a first rigid connection, preventing the upper bezel from falling off. The lower surface of the bezel 201 is coated with an adhesive layer 203 and pasted onto the watch case body 1 to form a secondary fixation. This double protection enhances the overall connection strength. At the same time, the mounting groove 202 of the bezel 201 and the upper bezel 302 are reserved with a gap to facilitate the sealing of the welding interface. The adhesive layer 203 can also further improve the sealing performance of the watch case and reduce the intrusion of dust and moisture.

[0026] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0027] Working principle: First, two sets of symmetrical annular limiting steps 301 and two sets of symmetrical limiting protrusions 303 are fixed on the upper surface of the watch case body 1, forming the core positioning component of the mounting mechanism 3. When installing the welding ring 302, the positioning groove 305 on the lower surface of the welding ring 302 is aligned and fitted with the two sets of limiting protrusions 303. At the same time, the limiting groove 304 on the inner side of the lower part of the welding ring 302 slides and engages with the two sets of annular limiting steps 301. Through the dual positioning effect of the positioning groove 305 and the limiting protrusions 303, and the limiting groove 304 and the annular limiting steps 301, the welding ring 302 is quickly and accurately fixed in the preset position of the watch case body 1. At this time, the upper surface of the welding ring 302 and the upper surface of the watch case body 1 form a stable welding reference surface. Then, the outer surface of the welding ring 302 is welded to the upper surface of the watch case body 1. The welding process is used to achieve a rigid connection between the two, forming the first layer of anti-detachment. To ensure stability, the annular limiting step 301 and the limiting protrusion 303 continuously support and limit the welding upper ring 302, preventing displacement during welding. Subsequently, an adhesive layer 203 is applied to the lower surface of the bezel 201, and the bezel 201 is aligned with the upper surface of the watch case body 1, maintaining a preset gap between the mounting groove 202 on the inner side of the lower bezel 201 and the outer surface of the lower welding upper ring 302. The bezel 201 is then glued to the watch case body 1 using the adhesive layer 203. After the adhesive layer 203 cures, it forms a second layer of fixation, which not only enhances the connection between the bezel 201 and the watch case body 1 but also improves the overall sealing of the watch case. During subsequent use, the annular limiting step 301 and the limiting protrusion 303 continuously restrict the radial and axial movement of the welding upper ring 302. The welding structure ensures a rigid connection between the welding upper ring 302 and the watch case body 1, while the adhesive layer 203 ensures a stable fit between the bezel 201 and the watch case body 1.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A watch case which is convenient to weld and can prevent the upper ring from falling off, comprising a watch case body (1), characterized in that: The upper surface of the watch case body (1) is fixedly connected to the mounting mechanism (3), and the upper surface of the watch case body (1) is attached to the covering mechanism (2). The mounting mechanism (3) includes an annular limiting step (301) and a limiting protrusion (303) fixedly connected to the upper surface of the watch case body (1). The upper surfaces of the annular limiting step (301) and the limiting protrusion (303) are attached to a welding upper ring (302). The outer surface of the welding upper ring (302) is welded to the upper surface of the watch case body (1). The covering mechanism (2) includes a bezel (201) attached to the upper surface of the watch case body (1). The lower surface of the welding ring (302) is provided with a positioning groove (305) corresponding to the position of the limiting protrusion (303), and the limiting protrusion (303) is provided in two sets. The limiting protrusion (303) is fixedly connected to the upper surface of the watch case body (1). A limiting groove (304) is provided on the lower inner side of the welding ring (302), and the outer surface of the limiting groove (304) is slidably connected to the outer surface of the annular limiting step (301).

2. The watch case according to claim 1, wherein: Two sets of the annular limiting steps (301) are provided, and the two sets of the annular limiting steps (301) are symmetrically arranged on the upper surface of the watch case body (1).

3. The watch case according to claim 1, wherein: The inner side of the bezel (201) is provided with a mounting groove (202), and there is a gap between the mounting groove (202) and the outer surface of the welded upper ring (302).

4. The watch case according to claim 3, wherein: The lower surface of the bezel (201) is coated with an adhesive layer (203), and the lower surface of the adhesive layer (203) is attached to the upper surface of the watch case body (1).

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