A watch frame

By designing multiple grooves in the watch frame, the problem of debris adhesion after ultrasonic welding was solved, enabling effective removal of debris and reducing the defect rate.

CN224519161UActive Publication Date: 2026-07-17SHISHI XINJIA ELECTRONIC CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHISHI XINJIA ELECTRONIC CO LTD
Filing Date
2025-07-22
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, the display screen of electronic watches is prone to adhering with debris during ultrasonic welding, resulting in a high defect rate and making it impossible to effectively remove the debris.

Method used

Design a watch frame containing multiple first grooves for blowing out debris from the grooves after ultrasonic welding, thus preventing debris from adhering to the display surface.

Benefits of technology

This effectively reduced the defect rate, ensured the cleanliness of the display screen surface, and improved the welding quality.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224519161U_ABST
    Figure CN224519161U_ABST
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Abstract

This utility model relates to the field of watch frame technology, specifically to a watch frame, including a frame body. A first square countersunk hole is formed in the center of the upward-facing side of the frame body. A second square countersunk hole is formed at the bottom of the first square countersunk hole, and a third square countersunk hole is formed at the bottom of the second square countersunk hole. At least two first grooves are formed on the inner wall of the third square countersunk hole, each first groove extending upwards through the frame body. The depth of each first groove is greater than the distance between the inner walls of the second square countersunk hole and the third square countersunk hole. By providing at least two first grooves, if debris is found after ultrasonic welding of the watch cover and frame body, air can be blown into one of the first grooves to expel the debris from the other first grooves. This ensures that debris can still be discharged after ultrasonic welding of the watch cover and frame body, preventing debris from falling and adhering to the surface of the display components, resulting in a lower defect rate.
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Description

Technical Field

[0001] This utility model relates to the field of watch frame technology, specifically to a watch frame. Background Technology

[0002] Watches, as both timekeeping tools and decorative items, have always been popular. With the continuous development of electronic technology, the use of electronic watches is becoming increasingly widespread.

[0003] In existing technology, the display screen of the electronic watch is first manually fixed and assembled to the watch frame, and then the watch cover and the watch frame are ultrasonically welded. During the ultrasonic welding process, the welding point between the watch cover and the watch frame generates severe molecular friction due to high-frequency vibration and produces debris. This may cause the debris to adhere to the surface of the electronic watch display screen. After ultrasonic welding, the watch cover and the watch frame form a sealed fit, making it impossible to remove the debris adhering to the surface of the electronic watch display screen, resulting in a high defect rate.

[0004] In view of this, the applicant has conducted in-depth research on the above-mentioned issues, which led to this case. Utility Model Content

[0005] The purpose of this invention is to provide a watch frame that can still discharge debris after ultrasonic welding of the watch cover and the watch frame.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A watch frame includes a frame body. A first square countersunk hole is formed in the middle of the upward-facing side of the frame body. A second square countersunk hole is formed at the bottom of the first square countersunk hole and arranged coaxially with it. A third square countersunk hole is formed at the bottom of the second square countersunk hole and arranged coaxially with it. The third square countersunk hole penetrates the frame body. At least two first grooves are formed on the inner sidewall of the third square countersunk hole. Each first groove penetrates the frame body upward. The depth direction of each first groove is the direction of the axis of the third square countersunk hole. The depth of each first groove is greater than the distance between the inner sidewalls of the second square countersunk hole and the third square countersunk hole.

[0008] As an improvement of this utility model, the middle frame body includes a first border, a second border, a third border, and a fourth border. The first border and the third border are arranged in parallel, as are the second border and the fourth border. The first border is disposed between the first end of the second border and the first end of the fourth border, and the third border is disposed between the second end of the second border and the second end of the fourth border. The first border, the second border, the third border, and the fourth border together form the square frame. The sides of the first border and the third border that are far apart from each other are respectively provided with connecting portions. Each connecting portion is provided with a sliding groove arranged along the length direction of the first border. The cross-sectional profile of each sliding groove is arc-shaped, and the opening of each sliding groove faces the same direction.

[0009] As an improvement of this utility model, a first assembly part is provided on the inner wall of the third-sided countersunk hole at a position corresponding to the middle position of the second frame, and a second assembly part is provided on the inner wall of the third-sided countersunk hole at a position corresponding to the middle position of the fourth frame. A vertically arranged first positioning post is integrally connected to the lower end of the first assembly part, and a vertically arranged first threaded hole is provided on the first assembly part. The arrangement direction of the first positioning post and the first threaded hole is parallel to the length direction of the second frame. A vertically arranged second positioning post is integrally connected to the lower end of the second assembly part, and a vertically arranged second threaded hole is provided on the second assembly part. The arrangement direction of the second positioning post and the second threaded hole is parallel to the length direction of the fourth frame. The line connecting the first positioning post and the second threaded hole is parallel to the first frame, and the line connecting the second positioning post and the first threaded hole is parallel to the first frame.

[0010] As an improvement of this utility model, the inner wall of the third-dimensional countersunk hole is provided with two first button through holes at the position corresponding to the second frame, and the first assembly part is located between the two first button through holes. The inner wall of the third-dimensional countersunk hole is provided with a second button through hole at the position corresponding to the fourth frame, and the second assembly part is located between the two second button holes.

[0011] As an improvement of this utility model, the inner wall of the third-sided countersunk hole is provided with a first locking part at a position corresponding to the first frame, and the inner wall of the third-sided countersunk hole is provided with a second locking part at a position corresponding to the third frame. Both the first locking part and the second locking part are provided with a third threaded hole.

[0012] As an improvement of this utility model, the lower end of the middle frame body is provided with a plurality of fourth threaded holes.

[0013] As an improvement of this utility model, a second groove is provided at the lower end of the middle frame body.

[0014] As an improvement of this utility model, the middle frame body is a plastic middle frame body.

[0015] By adopting the above technical solution, this utility model has the following beneficial effects:

[0016] By setting at least two first grooves, when debris is found after ultrasonic welding of the watch cover and the middle frame, air is blown into one of the first grooves to discharge the debris from the other first grooves. This allows debris to be discharged even after ultrasonic welding of the watch cover and the middle frame, preventing debris from falling and sticking to the surface of the display components, resulting in a lower defect rate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a watch frame according to the present invention;

[0018] Figure 2 This is a structural schematic diagram of the watch frame from another angle according to this utility model.

[0019] The corresponding markings in the diagram are as follows:

[0020] 10 - First border; 20 - Second border

[0021] 21 - Third border; 22 - Fourth border;

[0022] 23-Second square countersunk hole; 24-Third square countersunk hole;

[0023] 27 - First groove; 28 - Connecting part;

[0024] 29-Groove; 30-First assembly section;

[0025] 31-Second assembly section; 32-First positioning post;

[0026] 33 - First threaded hole; 34 - Second locating pin;

[0027] 35 - Second threaded hole; 36 - Second key through hole;

[0028] 37-First locking part; 38-Second locking part;

[0029] 39 - Fourth threaded hole; 40 - Third threaded hole;

[0030] 41 - Second groove. Detailed Implementation

[0031] The utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and drawings of this utility model are used to distinguish different objects, rather than to describe a specific order.

[0033] like Figures 1-2 As shown, this embodiment provides a watch frame, including a frame body. In this embodiment, the square frame is a plastic square frame, which effectively reduces the weight of the square frame. In the description of this utility model, it should be noted that the terms "upper," "lower," "bottom," "top," etc., indicate the orientation or positional relationship based on... Figure 1 As shown in the orientation or positional relationship, a first square countersunk hole is provided in the middle of the side of the middle frame body facing upward. A second square countersunk hole 23 is provided at the bottom of the first square countersunk hole and arranged coaxially with the first square countersunk hole. A third square countersunk hole 24 is provided at the bottom of the second square countersunk hole 23 and arranged coaxially with the second square countersunk hole 23. The third square countersunk hole 24 penetrates the middle frame body. At least two first grooves 27 are provided on the inner sidewall of the third square countersunk hole 24. Each first groove 27 penetrates the middle frame body upward. The depth direction is the direction of the axis of each first groove 27 toward the third square countersunk hole 24. The depth of each first groove 27 is greater than the distance between the inner sidewalls of the second square countersunk hole 23 and the third square countersunk hole 24.

[0034] The middle frame body includes a first frame 10, a second frame 20, a third frame 21, and a fourth frame 22. The first frame 10 and the third frame 21 are arranged in parallel, and the second frame 20 and the fourth frame 22 are arranged in parallel. The first frame 10 is located between the first end of the second frame 20 and the first end of the fourth frame 22, and the third frame 21 is located between the first end of the second frame 20 and the second end of the fourth frame 22. The first frame 10, the second frame 20, the third frame 21, and the fourth frame 22 together form a square frame. In this embodiment, the connection positions of the second frame 20 and the first frame 10, the fourth frame 22 and the first frame, the second frame 20 and the third frame 21, and the second frame 22 and the third frame 21 are all rounded. The sides of the first frame 10 and the third frame 21 that are far apart from each other are respectively formed with connecting portions 28. Each connecting portion 28 is provided with a groove 29 arranged along the length direction of the first frame 10. The cross-sectional profile of each groove 29 is arc-shaped, and the opening of each groove 29 faces the same direction.

[0035] The inner wall of the third square countersunk hole 24 is provided with a first assembly part 30 at a position corresponding to the middle position of the second frame 20. The inner wall of the third square countersunk hole 24 is provided with a second assembly part 31 at a position corresponding to the middle position of the fourth frame 22. The lower end of the first assembly part 30 is integrally connected with a vertically arranged first positioning post 32. The first assembly part 30 has a vertically arranged first threaded hole 33. The arrangement direction of the first positioning post 32 and the first threaded hole 33 is parallel to the length direction of the second frame 20. The lower end of the second assembly part 31 is integrally connected with a vertically arranged second positioning post 34. The second assembly part 31 has a vertically arranged second threaded hole 35. The arrangement direction of the second positioning post 34 and the second threaded hole 35 is parallel to the length direction of the fourth frame 22. The line connecting the first positioning post 32 and the second threaded hole 35 is parallel to the first frame 10. The line connecting the second positioning post 34 and the first threaded hole 33 is parallel to the first frame 10.

[0036] The inner wall of the third square countersunk hole 24 is provided with two first button through holes at the position corresponding to the second frame 20. The first assembly part 30 is located between the two first button through holes. The inner wall of the third square countersunk hole 24 is provided with a second button through hole 36 at the position corresponding to the fourth frame.

[0037] The inner wall of the third square countersunk hole 24 is provided with a first locking part 37 at a position corresponding to the first frame 10, and the inner wall of the third square countersunk hole 24 is provided with a second locking part 38 at a position corresponding to the third frame 21. Both the first locking part 37 and the second locking part 38 are provided with a third threaded hole 40.

[0038] The lower end of the middle frame body has multiple fourth threaded holes 39.

[0039] A second groove 41 is provided at the lower end of the middle frame body.

[0040] During assembly, the display screen assembly is first fixedly installed in the second square countersunk hole 23. Then, the transparent watch cover is ultrasonically welded to the top of the middle frame body. After assembling the display screen assembly and watch cover, the battery is then installed. The battery is secured by the battery clips engaging with the first assembly part 30 and the second assembly part 31. After installing the battery, the buttons can be installed. Then, the waterproof bezel is installed in the second groove 41. Finally, the watch case back is fixed to the bottom of the middle frame body using the fourth threaded hole 39 and screws. After installing the watch case back, the watch strap is installed. This completes the assembly of the electronic waterproof watch. Note that... Yes, the display assembly, watch cover, battery, button, waterproof bezel, watch case back, and watch strap are not part of the watch frame provided in this embodiment and need to be configured separately during use. When debris is found after ultrasonic welding of the watch cover and the frame body, an air blowing device (which is not part of this embodiment and needs to be configured separately during use) is used to blow air into one of the first grooves 27 to discharge the debris from the other first grooves 27. By providing at least two first grooves, debris can still be discharged after ultrasonic welding of the watch cover and the frame body, preventing debris from falling and sticking to the surface of the display assembly, resulting in a low defect rate.

[0041] The present invention has been described in detail above with reference to the accompanying drawings. However, the embodiments of the present invention are not limited to the above embodiments. Those skilled in the art can make various modifications to the present invention based on the prior art, and these modifications all fall within the protection scope of the present invention.

Claims

1. A watch middle frame, characterized by, The device includes a mid-frame body. A first square countersunk hole is formed in the middle of the upward-facing side of the mid-frame body. A second square countersunk hole is formed at the bottom of the first square countersunk hole and is coaxially arranged with the first square countersunk hole. A third square countersunk hole is formed at the bottom of the second square countersunk hole and is coaxially arranged with the second square countersunk hole. The third square countersunk hole penetrates the mid-frame body. At least two first grooves are formed on the inner sidewall of the third square countersunk hole. Each first groove penetrates the mid-frame body upward. The depth direction of each first groove is the direction of the axis of the third square countersunk hole. The depth of each first groove is greater than the distance between the inner sidewalls of the second square countersunk hole and the third square countersunk hole.

2. The watch middle frame according to claim 1, wherein, The middle frame body includes a first border, a second border, a third border, and a fourth border. The first border and the third border are arranged in parallel, as are the second border and the fourth border. The first border is located between the first end of the second border and the first end of the fourth border, and the third border is located between the second end of the second border and the second end of the fourth border. The first border, the second border, the third border, and the fourth border together form the middle frame body. The sides of the first border and the third border that are far apart from each other are respectively provided with connecting portions. Each connecting portion is provided with a groove arranged along the length direction of the first border. The cross-sectional profile of each groove is arc-shaped, and the openings of each groove face the same direction.

3. The watch middle frame according to claim 2, characterized in that, The inner wall of the third-sided countersunk hole is provided with a first assembly part at a position corresponding to the middle position of the second frame. The inner wall of the third-sided countersunk hole is provided with a second assembly part at a position corresponding to the middle position of the fourth frame. The lower end of the first assembly part is integrally connected with a vertically arranged first positioning post. The first assembly part has a vertically arranged first threaded hole. The arrangement direction of the first positioning post and the first threaded hole is parallel to the length direction of the second frame. The lower end of the second assembly part is integrally connected with a vertically arranged second positioning post. The second assembly part has a vertically arranged second threaded hole. The arrangement direction of the second positioning post and the second threaded hole is parallel to the length direction of the fourth frame. The line connecting the first positioning post and the second threaded hole is parallel to the first frame.

4. The watch middle frame according to claim 3, characterized in that, The inner wall of the third-party countersunk hole has two first button through holes at a position corresponding to the second frame, and the first assembly part is located between the two first button through holes. The inner wall of the third-party countersunk hole has a second button through hole at a position corresponding to the fourth frame, and the second assembly part is located between the two second button through holes.

5. The watch middle frame of claim 2, wherein, The inner wall of the third-sided countersunk hole is provided with a first locking part at a position corresponding to the first frame, and the inner wall of the third-sided countersunk hole is provided with a second locking part at a position corresponding to the third frame. Both the first locking part and the second locking part are provided with a third threaded hole.

6. The watch middle frame of claim 1, wherein, The lower end of the middle frame body is provided with multiple fourth threaded holes.

7. The watch middle frame of claim 1, wherein, A second groove is provided at the lower end of the middle frame body.

8. The watch middle frame of claim 1, wherein, The middle frame body is a plastic middle frame body.