Outer pile structure, speed regulating mechanism and mechanical watch
By introducing adjustable first and second adjustment axes into the outer pile structure of a mechanical watch and adjusting the hairspring length, the problem of unadjustable hairspring stiffness is solved, achieving a wider range of period adjustment and higher timekeeping accuracy.
Patent Information
- Application Number
- CN202422971657.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-12-02
AI Technical Summary
In existing mechanical watch speed regulating mechanisms, the hairspring length is fixed, resulting in the inability to adjust the stiffness, limiting the adjustable range of the period and making it difficult to meet the requirements of high-precision timekeeping.
The first and second adjustment shafts in the outer pile structure are used to adjust the hairspring length by rotating the first and second abutment wheels, and the adjustment accuracy and stability are ensured through gear engagement and snap connection.
The periodic adjustment range of the speed regulating mechanism has been significantly expanded, the travel accuracy and stability of mechanical watches have been improved, and a wider range of periodic adjustment has been achieved.
Smart Images
Figure CN223347214U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of mechanical watches, and in particular to an outer pile structure, a speed regulating mechanism and a mechanical watch. Background Art
[0002] The speed regulating mechanism of a mechanical watch consists of a balance wheel, a hairspring, a speed hand and a movable outer ring.
[0003] Frequency, beat, and period are all parameters that characterize the timekeeping characteristics of a mechanical watch. Of these, period is the most commonly used fundamental parameter when studying the operating characteristics of the speed regulating mechanism. It is primarily determined by the balance wheel's moment of inertia and the stiffness of the hairspring. Hairspring stiffness refers to the torque generated by a hairspring when twisted one arc. It is determined by the hairspring's length, material, and cross-sectional dimensions. Since the hairspring's material and end dimensions are fixed, the period can only be varied or adjusted by adjusting the hairspring's length.
[0004] Currently, the balance's inertia is varied by adjusting the position of a screw on the balance wheel, thereby matching the balance's inertia with the hairspring's stiffness to ensure accurate timekeeping. Once the hairspring's length is determined, its end is fixed to the stud via welding, gluing, or screws, resulting in a fixed effective length and unadjustable stiffness. Furthermore, the range of adjustment for the balance's inertia via screws is limited, typically corresponding to a period adjustment range of 100 to 300 seconds.
[0005] Therefore, although the above method of adjusting the period by adjusting the inertia of the balance wheel can meet the needs of daily use to a certain extent, it is inadequate when higher precision is required. Utility Model Content
[0006] In order to increase the adjustable range of the cycle, thereby helping to improve the travel accuracy of a mechanical watch, the present application provides an external pile structure, a speed regulating mechanism, and a mechanical watch.
[0007] In a first aspect, the present application provides an external pile structure, which adopts the following technical solution:
[0008] An outer pile structure includes an outer pile ring, a first adjustment shaft and a second adjustment shaft; the first adjustment shaft and the second adjustment shaft are both rotatably connected to the outer pile ring;
[0009] A first abutment wheel is provided on the first adjusting shaft, and a second abutment wheel is provided on the second adjusting shaft; an end of the hairspring is provided between the first abutment wheel and the second abutment wheel, and the first abutment wheel and the second abutment wheel abut against both sides of the hairspring respectively.
[0010] By adopting the above technical solution, the first adjustment shaft and the second adjustment shaft are rotated to make the first abutment wheel and the second abutment wheel rotate relative to each other, so that the length of the hairspring can be flexibly adjusted, thereby effectively improving the adjustment range of the speed regulation mechanism cycle, which helps to improve the travel accuracy.
[0011] Preferably, both the first adjusting shaft and the second adjusting shaft are provided with gears, and the two gears are meshed with each other.
[0012] By adopting the above technical solution, the rotation accuracy of the first adjustment shaft and the second adjustment shaft can be effectively improved through gear meshing, thereby improving the adjustment accuracy.
[0013] Preferably, an adjusting head is provided on the first adjusting shaft or the second adjusting shaft.
[0014] By adopting the above technical solution, the relative rotation of the first adjustment shaft and the second adjustment shaft can be achieved by operating the adjustment head, which is convenient for operation.
[0015] Preferably, a plane is provided on the first abutment wheel and / or the second abutment wheel, and the distance between the first abutment wheel and the second abutment wheel at the plane is greater than the thickness of the hairspring.
[0016] By adopting the above technical solution, when the hairspring is located at the plane, it will not be squeezed by the first abutment wheel and the second abutment wheel, and the plane position provides operating space for the installation of the hairspring, which is convenient for the staff to assemble.
[0017] Preferably, an annular groove is provided on the first abutment wheel or the second abutment wheel, and the hairspring is embedded in the annular groove.
[0018] By adopting the above technical solution, the setting of the annular groove can limit the hairspring, so that the hairspring has higher stability when adjusting the length of the hairspring, thereby ensuring the adjustment accuracy.
[0019] Preferably, it further includes a buckle, which has a first connecting portion that is clamped to the first adjustment shaft and a second connecting portion that is clamped to the second adjustment shaft, and the first adjustment shaft and the second adjustment shaft are both rotatably connected to the buckle.
[0020] By adopting the above technical solution, the buckle is connected to the first adjustment shaft and the second adjustment shaft, thereby ensuring the stability of the relative positions of the first adjustment shaft and the second adjustment shaft, so as to ensure that the first abutment wheel and the second abutment wheel can apply a stable abutment force to the hairspring, thereby ensuring the stability of the hairspring.
[0021] Preferably, lubrication grooves are provided at positions where the first adjustment shaft and the second adjustment shaft contact the buckle.
[0022] By adopting the above technical solution, lubricating oil can be set inside the lubrication groove, which makes it easier for the staff to rotate the first adjustment shaft and the second adjustment shaft smoothly when adjusting the length of the hairspring. At the same time, the buckle and the first adjustment shaft and the second adjustment shaft are rotationally connected through sliding abutment, which also makes the first adjustment shaft and the second adjustment shaft not easy to rotate, thereby improving the stability of the hairspring.
[0023] In a second aspect, the present application provides a speed regulating mechanism, which adopts the following technical solution:
[0024] A speed regulating mechanism comprises a balance wheel and the above-mentioned outer pile structure.
[0025] By adopting the above technical solution, the periodic adjustment range of the speed regulating mechanism can be effectively improved, which helps to improve the timekeeping accuracy.
[0026] In a third aspect, the present application provides a mechanical watch, which adopts the following technical solution:
[0027] A mechanical watch comprises the speed regulating mechanism mentioned above.
[0028] By adopting the above technical solution, the mechanical watch has a larger speed regulation range, which helps to improve the timekeeping accuracy.
[0029] In summary, this application includes at least one of the following beneficial technical effects:
[0030] 1. The relative rotation of the first and second adjustment shafts allows for flexible adjustment of the hairspring length, significantly expanding the adjustment range of the speed regulating mechanism cycle and contributing to improved timekeeping accuracy of mechanical watches.
[0031] 2. The gears on the first and second adjustment shafts are meshed, which improves the accuracy of the adjustment process and ensures the stability and reliability of the speed regulation mechanism;
[0032] 3. The setting of the buckle ensures the stability of the relative position of the first adjustment shaft and the second adjustment shaft, so that the first abutment wheel and the second abutment wheel can exert a stable abutment force on the hairspring, thereby improving the stability of the hairspring and ensuring the adjustment accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] Figure 1 Schematic diagram of the connection between the outer pile structure and the hairspring in the embodiment of the present application;
[0034] Figure 2 It is the specific structural composition of the outer pile structure in the embodiment of the present application;
[0035] Figure 3 It is used to show the coordination relationship between the first abutment wheel, the second abutment wheel and the hairspring;
[0036] Figure 4 It is a structural diagram of the speed regulating mechanism in the embodiment of the present application.
[0037] Markings in the accompanying drawings: 1. outer pile ring; 2. first adjusting shaft; 3. second adjusting shaft; 4. first abutment wheel; 41. plane; 5. second abutment wheel; 51. ring groove; 6. gear; 7. adjusting head; 8. buckle; 81. first connecting part; 82. second connecting part; 9. lubrication groove; 10. balance wheel; 11. hairspring. DETAILED DESCRIPTION
[0038] The following is combined with Figure 1-4 This application is described in further detail.
[0039] The embodiments of the present application provide an external pile structure, a speed regulating mechanism, and a mechanical watch. Firstly, the present application discloses an external pile structure, secondly, a speed regulating mechanism adopts the external pile structure, and thirdly, the speed regulating mechanism is applied to a mechanical watch.
[0040] Reference Figure 1 and Figure 2 Specifically, the outer pile structure includes an outer pile ring 1, a first adjusting shaft 2 and a second adjusting shaft 3; the first adjusting shaft 2 and the second adjusting shaft 3 are both rotatably connected to the outer pile ring 1; a first abutting wheel 4 is provided on the first adjusting shaft 2, and a second abutting wheel 5 is provided on the second adjusting shaft 3; the end of the hairspring 11 is provided between the first abutting wheel 4 and the second abutting wheel 5, and the first abutting wheel 4 and the second abutting wheel 5 are respectively abutted against the two sides of the hairspring 11, so as to achieve the effect of flexibly adjusting the length of the hairspring 11 and improving the periodic adjustment range of the speed regulating mechanism, thereby helping to improve the travel accuracy of the mechanical watch.
[0041] The end of the hairspring 11 is arranged between the first abutment wheel 4 and the second abutment wheel 5, and the first abutment wheel 4 and the second abutment wheel 5 are respectively abutted against the two sides of the hairspring 11. By rotating the first adjustment shaft 2 and the second adjustment shaft 3, the first abutment wheel 4 and the second abutment wheel 5 can be rotated, and the first abutment wheel 4 and the second abutment wheel 5 drive the hairspring 11 to move through friction, thereby adjusting the length of the hairspring 11.
[0042] Reference Figure 2 and Figure 3 The first abutment wheel 4 is provided with a flat surface 41 on its wheel surface. When the flat surface 41 faces the second abutment wheel 5, the gap between the first abutment wheel 4 and the second abutment wheel 5 is greater than the thickness of the hairspring 11, facilitating the installation of the hairspring 11. Furthermore, the first abutment wheel 4 is provided with an annular groove 51, into which the hairspring 11 is embedded. The provision of the annular groove 51 can limit the position of the hairspring 11, ensuring that the hairspring 11 maintains high stability when adjusting its length, thereby ensuring adjustment accuracy.
[0043] To further improve adjustment accuracy, gears 6 are provided on both the first adjustment shaft 2 and the second adjustment shaft 3, and the two gears 6 mesh with each other. The meshing of the gears 6 effectively transmits power, making the rotation of the first adjustment shaft 2 and the second adjustment shaft 3 more precise, thereby improving adjustment accuracy. In addition, an adjustment head 7 can be provided on the first adjustment shaft 2 or the second adjustment shaft 3. In this application, the adjustment head 7 is specifically provided on the first adjustment shaft 2. By operating the adjustment head 7, the first adjustment shaft 2 and the second adjustment shaft 3 can be easily rotated synchronously, simplifying the adjustment process.
[0044] To ensure a stable relative position between the first and second adjusting shafts 2 and 3, a buckle 8 is further included. The buckle 8 has a first connecting portion 81 that engages with the first adjusting shaft 2 and a second connecting portion 82 that engages with the second adjusting shaft 3. Both the first and second adjusting shafts 2 and 3 are rotatably connected to the buckle 8. The buckle 8, by being connected to the first and second adjusting shafts 2 and 3, ensures a stable relative position between the two, thereby ensuring that the first and second abutment wheels 4 and 5 can exert a stable abutment force on the hairspring 11, thereby ensuring the stability of the hairspring 11.
[0045] In addition, a lubrication groove 9 can be opened at the position where the first adjusting shaft 2 and the second adjusting shaft 3 contact the buckle 8. Lubricating oil can be set inside the lubrication groove 9 to facilitate the staff to smoothly rotate the first adjusting shaft 2 and the second adjusting shaft 3 when adjusting the length of the hairspring 11. At the same time, the buckle 8 and the first adjusting shaft 2 and the second adjusting shaft 3 are rotationally connected through sliding abutment, which can also prevent the first adjusting shaft 2 and the second adjusting shaft 3 from rotating easily, thereby improving the stability of the fixation of the hairspring 11.
[0046] Reference Figure 4 The speed regulating mechanism also includes a balance wheel 10, and an outer pile ring 1 is provided on the balance wheel 10. The length of the hairspring 11 is adjusted by the outer pile, so that the stiffness of the hairspring 11 matches the inertia of the balance wheel 10, so as to realize the periodic adjustment of the speed regulating mechanism.
[0047] The operating principle of this embodiment is as follows: by rotating the first adjustment shaft 2 and the second adjustment shaft 3, the first abutment wheel 4 and the second abutment wheel 5 rotate relative to each other, thereby flexibly adjusting the length of the hairspring 11. Since the stiffness of the hairspring 11 is related to its length, adjusting the length of the hairspring 11 can change its stiffness, thereby affecting the period of the speed regulating mechanism. Compared with the traditional method of changing the inertia of the balance wheel 10 by adjusting the position of the screws on the balance wheel 10, this embodiment can achieve a wider range of period adjustment by adjusting the length of the hairspring 11, thereby improving the timekeeping accuracy of the mechanical watch. In addition, the design of the meshing of the gear 6 and the buckle 8 can further improve the adjustment accuracy and stability, ensuring the reliability and durability of the speed regulating mechanism.
[0048] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. An external pile structure, characterized in that: It comprises an outer pile ring (1), a first adjustment shaft (2) and a second adjustment shaft (3); the first adjustment shaft (2) and the second adjustment shaft (3) are both rotatably connected to the outer pile ring (1); A first abutment wheel (4) is provided on the first adjustment shaft (2), and a second abutment wheel (5) is provided on the second adjustment shaft (3); an end portion of the hairspring (11) is provided between the first abutment wheel (4) and the second abutment wheel (5), and the first abutment wheel (4) and the second abutment wheel (5) respectively abut against two sides of the hairspring (11).
2. The outer pile structure according to claim 1, characterized in that: Gears (6) are provided on both the first adjustment shaft (2) and the second adjustment shaft (3), and the two gears (6) are meshed with each other.
3. The outer pile structure according to claim 1, characterized in that: An adjustment head (7) is provided on the first adjustment shaft (2) or the second adjustment shaft (3).
4. The outer pile structure according to claim 1, characterized in that: A plane (41) is provided on the first abutment wheel (4) and / or the second abutment wheel (5), and the distance between the first abutment wheel (4) and the second abutment wheel (5) at the plane (41) is greater than the thickness of the hairspring (11).
5. The outer pile structure according to claim 1, characterized in that: An annular groove (51) is provided on the first abutting wheel (4) or the second abutting wheel (5), and the hairspring (11) is embedded in the annular groove (51).
6. The outer pile structure according to claim 1, characterized in that: It also includes a buckle (8), the buckle (8) having a first connection portion (81) that is clamped to the first adjustment shaft (2) and a second connection portion (82) that is clamped to the second adjustment shaft (3), and the first adjustment shaft (2) and the second adjustment shaft (3) are both rotatably connected to the buckle (8).
7. The outer pile structure according to claim 6, characterized in that: Lubrication grooves (9) are provided at positions where the first adjustment shaft (2) and the second adjustment shaft (3) contact the buckle (8).
8. A speed regulating mechanism, characterized in that: It comprises a balance wheel (10) and an external pile structure as claimed in any one of claims 1 to 7.
9. A mechanical watch, characterized in that: The invention comprises the speed regulating mechanism described in claim 8.