A watch turnover shaft structure and a watch
By introducing an oil reservoir and a carbon steel shaft into the watch's flip hinge structure, combined with a non-circular design and sealing plates, the problem of easy wear and tear on the watch's flip structure is solved, resulting in a longer lifespan and a smoother flipping effect, making it suitable for high-frequency smartwatches.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LONGDA PRECISION PARTS (DONGGUAN) CO LTD
- Filing Date
- 2025-08-26
- Publication Date
- 2026-06-02
AI Technical Summary
The flip mechanism of existing smartwatches is prone to wear and failure after repeated use, resulting in a shortened lifespan and unsmooth flipping.
It adopts a flip-rotating shaft structure with an oil reservoir on the outer wall of the shaft, combined with a carbon steel shaft and a non-circular design to reduce friction and wear, and uses a sealing plate to prevent dust and moisture from entering, thus improving waterproof performance.
It extends the service life of the shaft and hollow roll, improves the smoothness of the flipping, and is especially suitable for high-frequency flipping scenarios such as camera switching in children's smartwatches, reducing production complexity and improving assembly efficiency.
Smart Images

Figure CN224315359U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of watch technology, and in particular to a watch flipping hinge structure and a watch. Background Technology
[0002] A watch is an instrument worn on the wrist for telling time. Watches typically use materials such as leather, rubber, nylon, or stainless steel to make the strap, which secures the watch face to the wrist. With technological advancements, the types of watches have increased significantly, such as smart video calling watches. These watches were invented to allow parents to know their children's location anytime, anywhere, thus improving children's safety when they are away from their parents. To facilitate communication between parents and children, smart watches have a flip function. However, due to an unreasonable structural design, the flip mechanism is prone to wear and failure after repeated flips. Therefore, it is necessary to propose a new solution to address this problem. Utility Model Content
[0003] In view of the above, this utility model addresses the deficiencies of the prior art, and its main purpose is to provide a watch flipping hinge structure and a watch, which solves the aforementioned problems.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] In a first aspect, a watch flip pivot structure includes a housing, a winding fixing cylinder, a hollow winding, and a pivot. The winding fixing cylinder is fixed in the housing, the hollow winding is fixed in the winding fixing cylinder, and the pivot is rotatably interference-fitted in the hollow winding. Furthermore, both ends of the pivot extend through the two end faces of the housing, and an oil storage groove is recessed on the outer side wall of the pivot.
[0006] As a preferred embodiment, the shaft is made of carbon steel.
[0007] As a preferred embodiment, there are two hollow rolls, which are respectively fixed at both ends of the roll fixing cylinder.
[0008] As a preferred embodiment, each of the hollow rolls has a lug, and correspondingly, the side walls at both ends of the roll fixing cylinder are provided with slots. The two hollow rolls are respectively inserted into the roll fixing cylinder from both ends, and the lugs of the two hollow rolls are respectively engaged in the corresponding slots.
[0009] As a preferred embodiment, sealing plates are provided at both ends of the housing.
[0010] As a preferred embodiment, the cross-section of the outer wall of the roll fixing cylinder is non-circular, and correspondingly, the inner wall of the outer shell is non-circular.
[0011] As a preferred embodiment, the outer shell is manufactured using a stretching process.
[0012] Secondly, a watch includes a watch flipping hinge structure as described in the first aspect.
[0013] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, its main features are:
[0014] The oil reservoir on the outer wall of the shaft can store lubricating oil, reducing friction and wear between the shaft and the hollow winding blade, maintaining the shaft and the hollow winding blade, and improving the lifespan and smoothness of the shaft's rotation. It is especially suitable for high-frequency rotation scenarios (such as the switching between the front and rear cameras of children's smartwatches).
[0015] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0017] Figure 2 This is an exploded view of an embodiment of the present utility model;
[0018] Figure 3 This is a partial structural schematic diagram of an embodiment of the present utility model;
[0019] Figure 4 This is a partial exploded view of an embodiment of the present utility model;
[0020] Figure 5 This is another structural schematic diagram of an embodiment of the present utility model;
[0021] Figure 6 This is a partial structural schematic diagram of an embodiment of the present utility model;
[0022] Figure 7 This is a schematic diagram of the roll fixing cylinder structure according to an embodiment of the present utility model;
[0023] Figure 8 This is a schematic diagram of the hollow roll structure according to an embodiment of the present invention.
[0024] Explanation of reference numerals in the attached figures:
[0025] 10. Outer shell; 11. Sealing plate; 20. Roller fixing cylinder; 21. Slot; 30. Hollow roll; 31. Lug; 40. Shaft; 41. Oil reservoir; Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.
[0027] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0028] Please see Figures 1 to 8 This utility model embodiment provides a watch flip pivot structure, including a housing 10, a winding fixing cylinder 20, a hollow winding 30, and a pivot 40. The winding fixing cylinder 20 is fixed in the housing 10, the hollow winding 30 is fixed in the winding fixing cylinder 20, and the pivot 40 is rotatably interference-fitted in the hollow winding 30. Furthermore, both ends of the pivot 40 extend through the two end faces of the housing 10, and an oil storage groove 41 is recessed on the outer side wall of the pivot 40.
[0029] Lubricating oil can be stored in the oil reservoir 41 on the outer wall of the shaft 40, which reduces friction and wear between the shaft 40 and the hollow winding blade 30, maintains the shaft 40 and the hollow winding blade 30, and improves the service life and flipping smoothness of the shaft 40. It is especially suitable for high-frequency flipping scenarios (such as the front and rear camera switching of children's smartwatches).
[0030] Furthermore, the shaft 40 is made of carbon steel. Carbon steel has extremely high hardness and resistance to deformation, which can reduce wear, increase service life, withstand the mechanical stress of repeated turning, and prevent the shaft from deforming or jamming due to long-term use.
[0031] Furthermore, there are two hollow coils 30, which are respectively fixed at both ends of the coil fixing cylinder 20. The coil fixing cylinder 20 can ensure that the coils are coaxial and concentric, improve assembly accuracy, ensure rotation effect, reduce wear, and achieve a high standard of durability of 100,000 cycles.
[0032] Furthermore, each of the hollow coils 30 has a lug 31, and correspondingly, the side walls at both ends of the coil fixing cylinder 20 are provided with slots 21. The two hollow coils 30 are respectively inserted into the coil fixing cylinder 20 from both ends, and the lugs 31 of the two hollow coils 30 are respectively engaged in the corresponding slots 21. The lugs 31 of the hollow coils 30 and the slots 21 of the coil fixing cylinder 20 fit together, enabling rapid and precise assembly, reducing the use of additional fasteners (such as screws), reducing production complexity and improving assembly efficiency.
[0033] Furthermore, sealing plates 11 are provided at both ends of the outer casing 10. This prevents dust, sweat, or moisture from entering the shaft (such as in scenarios where children wash their hands or it is used in rainy weather), ensuring effective lubrication and improving waterproof performance.
[0034] Furthermore, the outer wall of the wafer-winding fixing cylinder 20 has a non-circular cross-section, and correspondingly, the inner wall of the outer casing 10 is also non-circular. The non-circular contact surfaces of the wafer-winding fixing cylinder 20 and the outer casing 10 prevent relative rotation, ensuring that the torque is fully transmitted to the axis 40 during rotation, thus avoiding positioning inaccuracies caused by slippage (such as failure of the multi-angle hovering function). In this embodiment, the outer wall of the wafer-winding fixing cylinder 20 has a polygonal cross-section.
[0035] Furthermore, the outer shell 10 is manufactured using a stretching process, which reduces the manufacturing cost of the outer shell 10, improves mass production consistency, and maintains high structural strength.
[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A watch flip hinge structure, characterized in that, The device includes a housing (10), a roll fixing cylinder (20), a hollow roll (30), and a shaft (40). The roll fixing cylinder (20) is fixed in the housing (10), the hollow roll (30) is fixed in the roll fixing cylinder (20), and the shaft (40) is rotatably interference-fitted in the hollow roll (30). Both ends of the shaft (40) extend through the two end faces of the housing (10), and an oil storage groove (41) is recessed on the outer side wall of the shaft (40).
2. The watch flip hinge structure according to claim 1, characterized in that, The shaft (40) is made of carbon steel.
3. The watch flip hinge structure according to claim 1, characterized in that, There are two hollow rolls (30), and the two hollow rolls (30) are respectively fixed at both ends of the roll fixing cylinder (20).
4. The watch flip hinge structure according to claim 3, characterized in that, Each hollow roll (30) has a lug (31), and correspondingly, the side walls at both ends of the roll fixing cylinder (20) are provided with slots (21). The two hollow rolls (30) are respectively inserted into the roll fixing cylinder (20) from both ends, and the lugs (31) of the two hollow rolls (30) are respectively inserted into the corresponding slots (21).
5. A watch flip hinge structure according to any one of claims 1-4, characterized in that, Sealing plates (11) are provided at both ends of the outer casing (10).
6. A watch flip hinge structure according to any one of claims 1-4, characterized in that, The cross-section of the outer wall of the roll fixing cylinder (20) is non-circular, and correspondingly, the inner wall of the outer shell (10) is non-circular.
7. The watch flip hinge structure according to claim 6, characterized in that, The outer shell (10) is manufactured using a stretching process.
8. A watch, characterized in that, It includes a watch flip hinge structure as described in any one of claims 1-7.