Transmission structure of mechanical watch

Abstract

The utility model discloses a transmission structure of a mechanical watch, which comprises a dial plate, an hour hand wheel disc, a minute hand wheel disc, a tourbillon and a rotating disc, the dial plate is provided with a hollow cavity, and the hour hand wheel disc, the minute hand wheel disc, the tourbillon and the rotating disc are all arranged in the hollow cavity; the tourbillon comprises a second hand bracket, a hairspring, a flywheel, an escapement fork, an escapement wheel, a driving gear and a base; the second hand support is installed on the base, and the flywheel, the escapement fork, the escapement wheel and the driving gear are all arranged between the second hand support and the base. The base is provided with a middle shaft rod, the hairspring, the flywheel and the escapement wheel are all connected to the middle shaft rod in a penetrating mode, and the escapement wheel is vertically arranged so that the transverse space occupied by the tourbillon can be reduced; the wall part of the hollow cavity is provided with first rotation guiding teeth, and the minute hand wheel disc rotating along the first rotation guiding teeth drives the hour hand wheel disc to rotate together through the rotating disc. The device has the advantages of simple structure, compact matching, reasonable design and the like; therefore, the device is a product with excellent technical and economical performance.

Description

[Technical Field]

[0001] This utility model mainly relates to a mechanical watch transmission structure. [Background Technology]

[0002] Existing mechanical watches include manual-winding and automatic-winding models. Both types are powered by a mainspring within the movement, which stores energy to drive gears and ultimately the hands. The difference lies in the method of power generation. Manual-winding watches rely on manual operation to wind the mainspring, while automatic-winding watches utilize the oscillation of an automatic rotor to generate power and wind the mainspring. The working principle of a mechanical watch is as follows: the mainspring is wound manually or by a rotor; the mainspring drives the mainspring barrel, which meshes with gears in the transmission mechanism, which in turn meshes with gears in the escapement mechanism. The escapement mechanism acts as a speed controller for energy transfer, controlling the main drive system at a specific frequency to slowly release the energy stored in the mainspring; this slow and orderly release of energy is the working process of a mechanical watch. Traditional mechanical watches typically indicate time via a jumping hand, which offers a less engaging and novel experience for consumers. [Utility Model Content]

[0003] To enhance the novelty of the mechanical watch, this utility model proposes a new structural solution. The transmission structure of this mechanical watch adopts the following technical solution:

[0004] A mechanical watch transmission structure includes a dial, an hour wheel, a minute wheel, a tourbillon, and a rotating disc. The dial has a skeletonized cavity, and the hour wheel, minute wheel, tourbillon, and rotating disc are all installed inside the skeletonized cavity.

[0005] The tourbillon includes a second hand carrier, a hairspring, a flywheel, an escape fork, an escape wheel, a drive gear, and a base. The second hand carrier is mounted on the base, and the flywheel, escape fork, escape wheel, and drive gear are all located between the second hand carrier and the base. The base has a central axis, through which the hairspring, flywheel, and escape wheel are all connected. The flywheel, escape fork, and escape wheel are arranged vertically to reduce the lateral space occupied by the tourbillon. The hairspring is connected to the flywheel to drive the flywheel to rotate around the central axis. The minute hand wheel has external and internal teeth. The flywheel is connected to the escape wheel through the escape fork, and the drive gear is connected to both the escape wheel and the internal teeth.

[0006] The wall of the hollow cavity is provided with a first guide tooth. The minute hand wheel is connected to the dial by meshing with the external tooth. The hour hand wheel and the minute hand wheel are respectively installed at both ends of the rotating disk. The minute hand wheel, which rotates along the first guide tooth, drives the hour hand wheel to rotate together through the rotating disk.

[0007] Preferably, the dial has a central core post with a second guide tooth; the rotating disk is connected to the core post so that the rotating disk rotates around the core post as the center of rotation; the hour wheel has an inner ring tooth, which is connected to the second guide tooth, and the inner ring tooth and the second guide tooth rotate to assist the hour wheel in rotating around the hollow cavity.

[0008] Preferably, the escape wheel includes a drive tooth and a ratchet, the flywheel has a protrusion, the escape fork has a latch and an actuating part, the protrusion is connected to the latch, and the actuating part is connected to the ratchet.

[0009] Preferably, the rotating disk is an integral structure, comprising a first disk body and a second disk body. The first disk body has a cavity, and a shaft connection portion extends from the first disk body into the cavity. The shaft connection portion has a connection hole, and a shaft core is inserted into the connection hole to make the rotating disk rotate within the hollow cavity with the shaft core as the center.

[0010] Preferably, the cavity extends out of the column, and a follower gear is pivotally connected to the top of the column, which rotates freely relative to the column.

[0011] Preferably, the second disc body is provided with a gear set, and the base is provided with a drive gear, which is connected to the gear set.

[0012] Preferably, the hollow cavity is provided with a gear ring and a oscillating weight, the oscillating weight has a mainspring barrel, and the gear ring is connected to the gear set and the mainspring barrel respectively.

[0013] Preferably, an indicator component is sandwiched between the hour wheel and the minute wheel. The indicator component includes a base and an indicator frame. The indicator frame includes a foot, a first frame, and a second frame. The base is provided with a locking position for the foot to enter.

[0014] Preferably, the rotating disk has a recess for the chassis to engage, and the chassis is mounted on the rotating disk so that the chassis and the indicator frame rotate with the rotating disk.

[0015] The beneficial effects of this utility model compared with the prior art are:

[0016] The balance spring, through the interaction of the flywheel, escape fork, and escape wheel, drives the minute wheel to rotate around the dial. As the minute wheel rotates, it also drives the hour wheel, causing the minute and hour wheels to rotate in a planetary fashion, creating a stunning visual effect. Simultaneously, the hands, working in conjunction with the hands to indicate the time, replace traditional hands, resulting in a more aesthetically pleasing and innovative design. It boasts advantages such as simple structure, compact design, and rational configuration; therefore, it is a product with superior technical and economic performance. [Attached Image Description]

[0017] Figure 1 A schematic diagram of the mechanical watch transmission structure in a preferred embodiment of this utility model;

[0018] Figure 2 A schematic diagram of the first exploded state of the mechanical watch transmission structure in a preferred embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the second exploded state of the mechanical watch transmission structure in a preferred embodiment of the present invention.

Detailed Implementation Methods

[0020] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of the present invention, making the technical solution and beneficial effects of the present invention clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0023] The preferred embodiment provided by this utility model is as follows: Figures 1-3 As shown, a mechanical watch transmission structure includes a dial 1, an hour wheel 2, a minute wheel 3, a tourbillon 4, and a rotating disc 5. The dial 1 has a skeletonized cavity, and the hour wheel 2, minute wheel 3, tourbillon 4, and rotating disc 5 are all installed inside the skeletonized cavity. An indicator component 6 is sandwiched between the hour wheel 2 and the minute wheel 3. The indicator component 6 includes a base 61 and an indicator frame 62. The indicator frame 62 includes a foot 63, a first frame portion 64, and a second frame portion 65. The base 61 has a locking position 66 for the foot 63 to engage. The rotating disc 5 has a recess 51 for the base 61 to engage. The base 61 is installed on the rotating disc 5 so that the base 61 and the indicator frame 62 rotate with the rotating disc 5. Both the hour wheel 2 and the minute wheel 3 have time markers. The first frame portion 64 frames the time markers on the hour wheel 2, and the second frame portion 65 frames the time markers on the minute wheel 3, so as to achieve the effect of indicating the time.

[0024] The tourbillon 4 includes a hairspring 11, a second hand support 41, a flywheel 42, an escape fork 43, an escape wheel 44, a drive gear 45, and a base 46. In this structure, the escape fork 43 is changed from a traditional Y-shape to a W-shape. The second hand support 41 is mounted on the base 46, and the flywheel 42, escape fork 43, escape wheel 44, and drive gear 45 are all located between the second hand support 41 and the base 46. The top 411 of the second hand indicator has a pointed tip. When the minute wheel 3 rotates, the pointed tip rotates relative to the minute wheel 3, thus indicating the second hand position. Furthermore, the second hand support 41 includes the top 411 of the second hand indicator and a lever 412. The lever 412 and the top 411 of the second hand indicator are connected. The second hand support 41 is perpendicular to the second hand support 41 and connected to the base 46 via a lever foot. The flywheel 42, escape fork 43, escape wheel 44, and drive gear 45 are all located between the top of the indicator and the base 46. Furthermore, the base 46 is equipped with a support frame 47, which has several support feet 48. The support feet 48 are provided with recesses 481, and the lever foot 412 is connected to the recesses 481. The drive gear 45 is arranged between the support feet 48. The base 46 has a central shaft 49, through which the hairspring 11, flywheel 42, and escape wheel 44 are all connected. The flywheel 42, escape fork 43, and escape wheel 44 are arranged vertically to reduce the lateral space occupied by the tourbillon 4. The hairspring 11 is connected to the flywheel 42, driving the flywheel 42 to rotate around the central shaft 49. The escape wheel 44 includes a drive tooth 421 and a ratchet. The ratchet is located on the edge of the escape wheel, and the drive tooth is located below the escape wheel. The flywheel 42 has a protrusion 422, and the escape fork 43 has a latch 431 and a lever 432. The protrusion 422 is connected to the latch 431, and the lever 432 is connected to the ratchet. The simple harmonic motion of the flywheel 42 and the hairspring 11 controls the slow release of the mainspring power. The minute wheel 3 has external teeth 31 and internal teeth 32. The flywheel 42 is connected to the escape wheel 44 via the escape fork 43, and the drive gear 45 is connected to the escape wheel 44 and the internal teeth 32 respectively.

[0025] The wall of the hollow cavity is provided with a first guide tooth 12. The hollow cavity is circular. The first guide tooth 12 is arranged along the hollow cavity. The outer tooth 31 meshes with the first guide tooth 12 to connect the minute hand wheel 3 to the dial 1. The hour hand wheel 2 and the minute hand wheel 3 are respectively installed at both ends of the rotating disk 5. The minute hand wheel 3, which rotates along the first guide tooth 12, drives the hour hand wheel 2 to rotate together through the rotating disk 5.

[0026] The center of the dial 1 is provided with a core post 13, and the top of the core post 13 is provided with a second guide tooth 14; the rotating disk 5 is connected to the core post 13 so that the rotating disk 5 rotates with the core post 13 as the rotation center; the hour wheel 2 is provided with an inner ring tooth 21, which is connected to the second guide tooth 14. The inner ring tooth 21 and the second guide tooth 14 rotate and mesh to assist the hour wheel 2 in rotating around the hollow cavity.

[0027] The rotating disk 5 is an integral structure, comprising a first disk body 52 and a second disk body 53. The area of ​​the first disk body 52 is larger than the area of ​​the second disk body 53. The hour hand wheel 2 is disposed in the first disk body 52, and the minute hand wheel 3 is disposed in the second disk body 53. The first disk body 52 has a cavity, and a shaft connection portion 54 extends from the first disk body 52 into the cavity. The shaft connection portion 54 has a connection hole 55, which penetrates the shaft connection portion 54. The shaft core 13 passes through the connection hole 55 so that the rotating disk 5 rotates in the hollow cavity with the shaft core 13 as the center.

[0028] A column 56 extends vertically from the cavity, and a follower gear 57 is pivotally connected to the top of the column 56, allowing it to rotate freely relative to the column 56. The clock face 2 has an inner ring tooth 21, which connects to the guide tooth and the follower gear 57. The second disc body 53 has a circular frame 58, which is hollow and used to house a gear set 59. The gear set 59 is composed of several meshing gears, using conventional gear parts; the gear structure will not be described in detail here. The gears in the gear set 59 are arranged in different positions for easy connection to components in different locations. A drive gear 45 is located at the bottom of the base 46 and connects to the gear set 59. The hollow cavity is equipped with a gear ring 15 and a oscillating weight 16. The oscillating weight 16 has a mainspring barrel 17. The oscillating weight is connected to the mainspring in the mainspring barrel through a ratchet. The mainspring barrel is fixed on the oscillating weight. The gear ring 15 is connected to the gear set 59 and the mainspring barrel 17 respectively. Both the inner and outer rings of the gear ring 15 are provided with teeth 18. The gear set 59 is connected to the teeth of the outer ring. The mainspring barrel 17 is connected to the teeth of the inner ring through several small gears.

[0029] The traditional tourbillon 4 has all its components arranged on a single plane, which occupies a relatively large area and takes up a lot of internal watch space, making it inconvenient to install. In this design, the tourbillon 4 uses a vertically arranged structure, with some components rotating around the central axis 49. This reduces the space occupied by the tourbillon 4 and allows the flywheel 42 to be made larger within a limited area, thus improving accuracy compared to the traditional structure.

[0030] The balance spring 11, escape fork 43, and escape wheel 44 work together to control the slow release of the mainspring power through simple harmonic motion. A drive gear 45 connects the escape wheel 44 and the internal gear 32. The escape wheel 44 drives the minute wheel 3 along the first guide gear 12 of the hollow cavity. The tourbillon 4 is located inside the minute wheel 3. Since the minute wheel 3 and the hour wheel 2 are mounted on the rotating disk 5, when the minute wheel 3 rotates, it will drive the hour wheel 2 to rotate synchronously. When the hour wheel 2 rotates, the second guide gear 14 of the spindle 13 meshes with the inner ring gear 21. The spindle 13 is fixed and guides the rotation of the hour wheel 2. Simultaneously, the follower gear 57 of the rotating disk 5 meshes with the inner ring gear 21 to assist the rotation of the hour wheel 2. The triangular shape formed by the spindle 13 and the follower gear 57 makes the rotation of the hour wheel 2 more stable. The rotor 16 is an eccentric wheel structure. With the daily swing of the arm, the rotor 16 rotates under the influence of gravity to input energy. The mainspring barrel 17, gear ring 15, and gear set 59 work together to input and store power into the tourbillon 4, and then output power to the entire mechanical structure of the watch.

[0031] In the description of this specification, references to terms such as "an embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. Illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] Based on the above description of the structure and principle, those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. Improvements and substitutions based on this utility model using techniques known in the art all fall within the protection scope of this utility model and should be defined by the claims.

Claims

1. A mechanical watch transmission structure, characterized in that: It includes a dial, an hour wheel, a minute wheel, a tourbillon, and a rotating disc. The dial has a skeletonized cavity, and the hour wheel, minute wheel, tourbillon, and rotating disc are all installed inside the skeletonized cavity. The tourbillon includes a second hand carrier, a hairspring, a flywheel, an escape fork, an escape wheel, a drive gear, and a base. The second hand carrier is mounted on the base, and the flywheel, escape fork, escape wheel, and drive gear are all located between the second hand carrier and the base. The base has a central axis, through which the hairspring, flywheel, and escape wheel are all connected. The flywheel, escape fork, and escape wheel are arranged vertically to reduce the lateral space occupied by the tourbillon. The hairspring is connected to the flywheel to drive the flywheel to rotate around the central axis. The minute hand wheel has external and internal teeth. The flywheel is connected to the escape wheel through the escape fork, and the drive gear is connected to both the escape wheel and the internal teeth. The wall of the hollow cavity is provided with a first guide tooth. The minute hand wheel is connected to the dial by meshing with the external tooth. The hour hand wheel and the minute hand wheel are respectively installed at both ends of the rotating disk. The minute hand wheel, which rotates along the first guide tooth, drives the hour hand wheel to rotate together through the rotating disk.

2. The mechanical watch transmission structure according to claim 1, characterized in that: The dial has a central pivot with a second guide tooth. A rotating disk is connected to the pivot so that it rotates around the pivot. The hour wheel has an inner ring tooth that is connected to the second guide tooth. The inner ring tooth and the second guide tooth rotate and mesh to assist the hour wheel in rotating around the hollow cavity.

3. The mechanical watch transmission structure according to claim 1, characterized in that: The escape wheel includes a drive tooth and a ratchet tooth. The flywheel has a protrusion, and the escape fork has a latch and an actuating part. The protrusion is connected to the latch, and the actuating part is connected to the ratchet tooth.

4. The mechanical watch transmission structure according to claim 1, characterized in that: The rotating disk is an integral structure, comprising a first disk body and a second disk body. The first disk body has a cavity, and a shaft connection extends from the first disk body into the cavity. The shaft connection has a connection hole, and a shaft core passes through the connection hole to make the rotating disk rotate within the hollow cavity with the shaft core as the center.

5. The mechanical watch transmission structure according to claim 4, characterized in that: A cylinder extends from the cavity, and a follower gear is pivotally connected to the top of the cylinder. The follower gear rotates freely relative to the cylinder.

6. The mechanical watch transmission structure according to claim 4, characterized in that: The second disc body is provided with a gear set, and the base is provided with a drive gear, which is connected to the gear set.

7. A mechanical watch transmission structure according to claim 6, characterized in that: The hollow cavity contains a gear ring and a oscillating weight. The oscillating weight has a mainspring barrel, and the gear ring is connected to the gear set and the mainspring barrel respectively.

8. The mechanical watch transmission structure according to claim 1, characterized in that: An indicator component is sandwiched between the hour and minute hands. The indicator component includes a base and an indicator frame. The indicator frame includes a foot, a first frame, and a second frame. The base has a locking position for the foot to enter.

9. A mechanical watch transmission structure according to claim 8, characterized in that: The rotating disk has a recess for the chassis to engage, and the chassis is mounted on the rotating disk so that the chassis and the indicator frame rotate with the rotating disk.

10. A mechanical watch transmission structure according to claim 1, characterized in that: The escapement fork is W-shaped.

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