Precise time indication mechanism

Abstract

The present invention relates to the field of watches, and in particular to a precise time indicating mechanism. A precise time indicating mechanism includes a fixing mechanism, a gear transmission mechanism, a time indicating mechanism, and a positioning mechanism; the movement outputs power to the gear transmission mechanism, and the gear transmission mechanism is connected to the time indicating mechanism; the time indicating mechanism includes a time display disk, a gear ring, and a jewel disk; the time display disk is fixedly connected to the fixing mechanism, the gear ring is fixedly connected to the jewel disk, and the gear ring and the gear transmission mechanism are engaged; the positioning mechanism includes at least two positioning guides, and the outer peripheral surface of the positioning guides cooperates with the outer peripheral surface of the jewel disk. The present invention prevents the problem of inaccurate time indication caused by eccentricity of the gears during long-term operation by providing a positioning guide and a jewel disk, thereby making time indication more accurate; at the same time, a spring is provided to buffer the deformation of the positioning guide caused by thermal expansion and contraction.

Description

Technical Field

[0001] The present invention relates to the field of watches, and in particular to a precise time indicating mechanism. Background Art

[0002] Today, watches are no longer simply time-telling tools; they're increasingly becoming accessories. Ordinary watches use traditional hands to indicate the hours, minutes, and seconds, and time is read using the scale on the dial beneath the hands. With the growing desire for novelty, people are no longer satisfied with the conventional indications of watches. Beyond simply being able to tell time, watches should also offer a more aesthetically pleasing and collectible feel.

[0003] Timing and time reading are the most basic functions of a watch. Most existing watches use gear transmission, which often produces deflection during gear transmission, affecting the transmission accuracy, thereby causing watch malfunction and inaccurate time reading. Summary of the Invention

[0004] The technical problem to be solved by this invention is that the gear transmission of a watch can cause deflection, resulting in inaccurate time readings. Based on this technical problem, the purpose of this invention is to design a precise time indicating mechanism that can effectively overcome the deflection problem of the gear transmission of a watch movement, thereby providing more accurate time readings. To achieve this goal, the technical solution adopted by this invention is as follows:

[0005] A precise time indicating mechanism comprises a fixing mechanism, a gear transmission mechanism mounted on the fixing mechanism, a time indicating mechanism and a positioning mechanism; a movement outputs power to the gear transmission mechanism, and the gear transmission mechanism is connected to the time indicating mechanism; the time indicating mechanism comprises a time display disk, a gear ring and a jewel disk, the time display disk is fixedly connected to the fixing mechanism, the gear ring is fixedly connected to the jewel disk, and the gear ring is meshed with the gear transmission mechanism; the positioning mechanism comprises at least two positioning guide rails, the outer circumferential surfaces of the positioning guide rails cooperate with the outer circumferential surface of the jewel disk.

[0006] Furthermore, the time display dial includes an hour dial and a minute dial, the tooth ring includes a first tooth ring and a second tooth ring, the jewel plate includes a first jewel plate and a second jewel plate, the first tooth ring and the first jewel plate are fixedly connected, and the second tooth ring and the second jewel plate are fixedly connected; the hour dial is arranged on the outer side of the first jewel plate, and the minute dial is arranged on the outer side of the second jewel plate.

[0007] Furthermore, the gear transmission mechanism includes an hour wheel, a minute wheel, a first minute wheel, and a second minute wheel. The hour wheel is connected to the movement, the first minute wheel is connected and meshed with the hour wheel, and the first gear ring is meshed with the first minute wheel; the minute wheel is connected to the movement, the second minute wheel is connected and meshed with the minute wheel, and the second gear ring is meshed with the second minute wheel.

[0008] Furthermore, there are six positioning rails, and three positioning rails are respectively provided on the first jewel plate and the second jewel plate.

[0009] Furthermore, the positioning mechanism also includes a spring plate and a clutch splint connected to the fixing mechanism, one end of the spring plate is axially connected to the fixing mechanism, and the other end of the spring plate is in contact with the clutch splint, and the clutch splint moves through the spring plate; the spring plate and the clutch splint are both arranged near the first cross wheel and the second cross wheel.

[0010] Furthermore, a bearing groove is provided on the outer periphery of the jewel plate, and the outer side of the positioning guide rail is matched with the groove.

[0011] Furthermore, the fixing mechanism includes a fixed machine ring, a dial, a cross-wheel fixing assembly, and a bearing fixing assembly; the fixed machine ring is connected to the movement, the dial is fixedly connected to the fixed machine ring, and the cross-wheel fixing assembly and the bearing fixing assembly are both connected to the dial.

[0012] Furthermore, the cross wheel fixing assembly includes a first support column and a first splint; the first support column is connected to the letter surface, and the first splint is connected to the first support column; the first cross wheel and the second cross wheel are arranged between the first splint and the letter surface; bearings are provided between the first cross wheel and the first splint and the letter surface, and bearings are also provided between the second cross wheel and the first splint and the letter surface.

[0013] Furthermore, the bearing fixing assembly is provided with at least two groups, each group includes three second support columns, wherein the two second support columns are connected to the literal, and the one second support column is connected to the clutch splint; the positioning guide rails are respectively connected to the second support columns.

[0014] Furthermore, the fixing mechanism also includes a spring-type fixing cover plate, and the spring-type fixing cover plate is fixedly connected to the letter surface.

[0015] The beneficial effects of the present invention are as follows: (1) the present invention prevents the problem of inaccurate time indication caused by eccentricity of the gear during long-term operation by arranging the positioning guide rail and the jewel plate, thereby making the time indication more accurate; (2) a spring piece is arranged at the same time to buffer the deformation of the positioning guide rail caused by thermal expansion and contraction; (3) the first jewel plate and the second jewel plate indicate the hour and minute respectively, the shape of the jewel plate and the display plate are consistent, and a time indication mark is arranged on the jewel plate for reading the current time, which has good aesthetics. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the precise time indicating mechanism of the present invention;

[0017] Figure 2 A top view of the precise time indication mechanism of the present invention (with the first plate removed);

[0018] Figure 3 for Figure 2 AA direction cross-sectional view;

[0019] Figure 4 A top view of the precise time indicating mechanism of the present invention;

[0020] Figure 5 for Figure 4 BB direction cross-sectional view;

[0021] Figure 6 This is an exploded view of the precise time indication mechanism of the present invention.

[0022] In the figure, 1-fixing mechanism, 11-fixed machine ring, 12-literal, 13-cross wheel fixing assembly, 131-first support column, 132-first splint, 133-bearing, 14-bearing fixing assembly, 141-second support column, 142-rivet, 15-spring fixed cover, 2-gear transmission mechanism, 21-hour wheel, 22-minute wheel, 23-first cross wheel, 24-second cross wheel, 3-time indication mechanism, 31-time display disk, 311-hour disk, 312-minute disk, 32-tooth ring, 321-first tooth ring, 322-second tooth ring, 33-jewel disk, 331-first jewel disk, 332-second jewel disk, 333-bearing groove, 4-positioning mechanism, 41-positioning guide, 42-spring, 43-clutch splint, 10-movement. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0024] Example 1

[0025] like Figure 1-6As shown, a precise time indicating mechanism comprises a fixing mechanism 1, a gear transmission mechanism 2 mounted on the fixing mechanism 1, a time indicating mechanism 3, and a positioning mechanism 4. A movement 10 outputs power to the gear transmission mechanism 2, which is connected to the time indicating mechanism 3. The time indicating mechanism 3 comprises a time display disc 31, a gear ring 32, and a jewel disc 33. The time display disc 31 is fixedly connected to the fixing mechanism 1, the gear ring 32 is fixedly connected to the jewel disc 33, and the gear ring 32 meshes with the gear transmission mechanism 2. The positioning mechanism 4 comprises at least two positioning rails 41, the outer circumference of each positioning rail 41 mates with the outer circumference of the jewel disc 33. After receiving power, the gear transmission mechanism 4 drives the time indicating mechanism 3 to display the time. The gear ring 32 in the time indicating mechanism 3 meshes with the gear transmission mechanism 2. Because the gear transmission mechanism is subjected to one-sided force, the axis may occasionally become unstable. In this case, the positioning rails 41 cooperate with the jewel disc to provide a positioning function.

[0026] Specifically, the time display disk 31 includes an hour disk 311 and a minute disk 312. The toothed ring 32 includes a first toothed ring 321 and a second toothed ring 322. The jewel disk 33 includes a first jewel disk 331 and a second jewel disk 332. The first toothed ring 321 is fixedly connected to the first jewel disk 331, while the second toothed ring 322 is fixedly connected to the second jewel disk 332. The hour disk 311 is disposed on the outer side of the first jewel disk 331, while the minute disk 312 is disposed on the outer side of the second jewel disk 332. The first toothed ring 321 is embedded in the first jewel disk 331, while the second toothed ring 322 is embedded in the second jewel disk 332. The hour disk 311 and the minute disk 312 are respectively fixedly connected to the fixing mechanism 1 and disposed on the outer circumferences of the first and second jewel disks 331 and 332. The first and second jewel disks 331 and 332 rotate driven by the first and second toothed rings 321 and 322. Both jewel disks are provided with time indication marks.

[0027] Specifically, the gear transmission mechanism 2 includes an hour wheel 21, a minute wheel 22, a first minute wheel 23, and a second minute wheel 24. The hour wheel 21 is connected to the movement 10, the first minute wheel 23 is engaged with the hour wheel 21, and the first gear ring 321 is engaged with the first minute wheel 23; the minute wheel 22 is connected to the movement 10, the second minute wheel 24 is connected to and engaged with the minute wheel 22, and the second gear ring 322 is engaged with the second minute wheel 24.

[0028] Specifically, there are six positioning rails 41, with three bearing positioning rails corresponding to each of the first and second jewel plates 331, 332. This forms a triangle, preventing the first and second jewel plates 331, 332 from rotating off-center and affecting time reading. Bearing grooves 333 are defined on the outer circumferences of the first and second jewel plates 331, 332, and the outer side surfaces of the positioning rails 41 always mate with the bearing grooves 333.

[0029] Specifically, the positioning mechanism 4 also includes a spring clip 42 and a clutch plate 43 connected to the fixing mechanism 1. One end of the spring clip 42 is axially connected to the fixing mechanism 1, and the other end of the spring clip contacts the clutch plate 43, which is moved by the spring clip 42. The spring clip 42 and the clutch plate 43 are both located near the first and second splitter wheels 23 and 24. Because the first gear ring 321 is engaged with the first splitter wheel 23, the meshing side of the first gear ring 321 and the splitter wheels is subject to greater force. Therefore, the spring clip 42 is located near the first and second splitter wheels 23 and 24 to mitigate the guide rail changes caused by thermal expansion and contraction, which can cause inaccurate positioning. When thermal expansion and contraction cause the guide rail to deform, the positioning guide rail 41 and the jewel disk are too close and will get stuck, and the jewel disk cannot rotate. Therefore, a clutch splint is provided. When the positioning guide rail 41 receives external force from the jewel disk, the clutch splint will rotate outward, and the third support column 142 connected to the clutch splint 43 will move accordingly, thereby avoiding getting stuck; when the external force acting on the positioning guide rail 41 disappears, under the action of the spring 42, the clutch splint 42 and the third support column are reset.

[0030] Specifically, the fixing mechanism 1 includes a fixed machine ring 11, a dial 12, a cross-wheel fixing assembly 13, and a bearing fixing assembly 14; the fixed machine ring 11 is connected to the movement 10, the dial 12 is fixedly connected to the fixed machine ring 11, the cross-wheel fixing assembly 13 and the bearing fixing assembly 14 are both connected to the dial 12, and the dial 12 serves as the main body of the parts assembly.

[0031] Specifically, the mini-wheel fixing assembly 13 includes two first support columns 131 and a first splint 132; the first support column 131 is connected to the literal surface 12, and the first splint 132 is fixedly connected to the first support column 131 by screws; the first mini-wheel 23 and the second mini-wheel 24 are arranged between the first splint 132 and the literal surface 12; bearings 133 are provided between the first mini-wheel 23 and the first splint 132 and the literal surface 12, and bearings 133 are also provided between the second mini-wheel 24 and the first splint 132 and the literal surface 12. The bearings 133 can be jewel bearings, which play a fixing and self-lubricating role.

[0032] Specifically, the bearing fixing assemblies 14 are arranged in at least two groups, each comprising three second support posts 141. Two of the second support posts 141 are connected to the dial 12, and one second support post 142 is connected to the clutch plate 43. The positioning rails 41 are connected to the second support posts 141. Rivets 142 pass through the positioning rails 41 and connect to the first support posts 141. As the jewel disc rotates, the rails 41 can also rotate relative to it, achieving positioning while minimizing friction. The number of bearing fixing assemblies matches the number of time display discs.

[0033] Specifically, the fixing mechanism 1 further includes a spring-type fixing cover plate 15, which is fixedly connected to the letter surface 12. The end of the spring-type fixing cover plate 15 connected to the letter surface 12 is a fixed end, which is screwed to the letter surface 12. The end of the spring-type fixing cover plate 15 in contact with the clutch plate 43 is a free end. When the free end is subjected to force, the spring-type fixing cover plate 15 can rotate about the positioning axis.

[0034] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the present invention.

[0035] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Therefore, although this specification has described the present invention in detail with reference to the above embodiments, it should be understood by those skilled in the art that the present invention can still be modified or replaced by equivalents. All technical solutions and improvements that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A precise time indicating mechanism, comprising a fixing mechanism (1), characterized in that: It also includes a gear transmission mechanism (2), a time indicating mechanism (3) and a positioning mechanism (4) installed on the fixing mechanism (1); the movement (10) outputs power to the gear transmission mechanism (2), and the gear transmission mechanism (2) is connected to the time indicating mechanism (3); The time indicating mechanism (3) comprises a time display disc (31), a gear ring (32) and a jewel disc (33); the time display disc (31) is fixedly connected to the fixing mechanism (1); the gear ring (32) and the jewel disc (33) are fixedly connected; and the gear ring (32) is meshed with the gear transmission mechanism (2); The time display disk (31) includes an hour disk (311) and a minute disk (312); the toothed ring (32) includes a first toothed ring (321) and a second toothed ring (322); the jewel disk (33) includes a first jewel disk (331) and a second jewel disk (332); the first toothed ring (321) and the first jewel disk (331) are fixedly connected, and the second toothed ring (322) and the second jewel disk (332) are fixedly connected; the hour disk (311) is arranged on the outer side of the first jewel disk (331), and the minute disk (312) is arranged on the outer side of the second jewel disk (332); and a bearing groove (333) is provided on the outer periphery of the jewel disk (33); The positioning mechanism (4) includes at least two positioning guide rails (41), the outer peripheral surface of the positioning guide rail (41) cooperates with the outer peripheral surface of the jewel plate (33), and the outer side of the positioning guide rail (41) cooperates with the bearing groove (333); there are six positioning guide rails (41), and the first jewel plate (331) and the second jewel plate (332) are respectively provided with three corresponding bearing positioning guide rails; the positioning mechanism (4) also includes a spring plate (42) and a clutch splint (43) connected to the fixing mechanism (1), one end of the spring plate (42) is axially connected to the fixing mechanism (1), and the other end of the spring plate is in contact with the clutch splint (43), and the clutch splint (43) is movable through the spring plate (42); the spring plate (42) and the clutch splint (43) are both arranged at positions close to the first cross wheel (23) and the second cross wheel (24).

2. The precise time indicating mechanism according to claim 1, characterized in that: The gear transmission mechanism (2) comprises an hour wheel (21), a minute wheel (22), a first minute wheel (23), and a second minute wheel (24); the hour wheel (21) is connected to the movement (10); the first minute wheel (23) is meshed with the hour wheel (21); the first toothed ring (321) is meshed with the first minute wheel (23); the minute wheel (22) is connected to the movement (10); the second minute wheel (24) is connected to and meshed with the minute wheel (22); the second toothed ring (322) is meshed with the second minute wheel (24).

3. The precise time indicating mechanism according to claim 2, characterized in that: The fixing mechanism (1) comprises a fixed machine ring (11), a face plate (12), a short wheel fixing assembly (13), and a bearing fixing assembly (14); the fixed machine ring (11) is connected to the movement (10), the face plate (12) is fixedly connected to the fixed machine ring (11), and the short wheel fixing assembly (13) and the bearing fixing assembly (14) are both connected to the face plate (12).

4. The precise time indicating mechanism according to claim 3, characterized in that: The short wheel fixing assembly (13) includes a first support column (131) and a first clamping plate (132); the first support column (131) is connected to the literal surface (12), and the first clamping plate (132) is connected to the first support column (131); the first short wheel (23) and the second short wheel (24) are arranged between the first clamping plate (132) and the literal surface (12); a bearing (133) is provided between the first short wheel (23) and the first clamping plate (132) and the literal surface (12), and a bearing (133) is also provided between the second short wheel (24) and the first clamping plate (132) and the literal surface (12).

5. The precise time indicating mechanism according to claim 3, characterized in that: The bearing fixing assembly (14) is provided with at least two groups, each group including three second support columns (141), wherein the two second support columns (141) are connected to the literal surface (12), and the one second support column (141) is connected to the clutch splint (43); and the positioning guide rails (41) are respectively connected to the second support columns (141).

6. The precise time indicating mechanism according to claim 3, characterized in that: The fixing mechanism (1) further comprises a spring-type fixing cover plate (15), and the spring-type fixing cover plate (15) is fixedly connected to the letter surface (12).

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