Clock spring starting instantaneous jump structure

Abstract

The utility model provides a clock spring starting instantaneous jump structure, which is characterized in that when an eccentric cam on a central shaft of a 24-hour wheel pushes a control rod to the topmost end, a calendar changing driven wheel is unlocked for limiting, and a calendar changing driving wheel is limited at the same time; when the wheel continues to move for 24 hours and the eccentric cam pushes the control rod to the lowest end, the calendar changing driving wheel is unlocked and limited, the calendar changing driving wheel starts to rotate freely under the driving of the spring box, and at the moment, the calendar changing driving wheel can drive the calendar piece to change the calendar; when the calendar changing driven wheel rotates along with the calendar changing driving wheel until the control rod control fork abuts against the calendar changing driven wheel limiting protrusion at the same time, the calendar changing driven wheel stops moving, and therefore the calendar changing driving wheel is limited to stop moving, and one-time driving is completed. Similarly, all functions such as a calendar, a weekly calendar, a monthly phase, a year calendar and a perpetual calendar which need to be driven once every 24 hours can be driven, an instant jump alarm clock function at specific time can be realized, and the stability of a time travel mechanism of the clock is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of clocks and watches, in particular to a clock and watch spring starting instantaneous jump structure. Background Art

[0002] Alarms, calendars, weekly calendars, annual calendars and even perpetual calendars are relatively common structures on mechanical clocks, and their characteristics can be summarized as devices that are activated once every 24 hours. The usual flip calendar structure outputs torque from the minute wheel. After 24 hours, the gears or micro-spring energy storage push the calendar structure forward one day. In fact, for relatively simple functions such as the usual calendar and weekly calendar, the minute wheel output torque is sufficient to flip the calendar piece. The disadvantage may affect the swing amplitude in the last few hours, especially the instantaneous jump calendar structure with micro-spring energy storage. In theory, it will affect the stability of the watch. In addition, if it involves a complex calendar structure, such as one that can display the moon phase, annual calendar or perpetual calendar, the impact on the travel time is even greater, the maintenance cycle is very short, and it is easy to have a loose minute wheel casing failure. Therefore, further improvements are needed. Utility Model Content

[0003] In view of this, the utility model provides a clock spring start instantaneous jump structure, which aims at the problems of the prior art and designs an instantaneous jump structure for realizing various calendar structures without affecting the running time, thereby solving the existing technical problems.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A clock spring start instantaneous jump structure comprises an eccentric cam fixed on the central axis of the clock's 24-hour wheel, a control lever rotatably arranged on the clock and with the rear end in contact with the eccentric cam for toggling linkage, a clock barrel rotatably arranged on the clock, a calendar-changing driving wheel rotatably arranged on the clock and with the driving gear on the lower side of the central rotating shaft meshing with the outer gear of the clock barrel, and a calendar-changing driven wheel rotatably arranged on the clock and meshing with the outer gear of the calendar-changing driving wheel. A control fork is arranged at the front end of the control lever, and two forks of the control fork are respectively located above the calendar-changing driving wheel and the calendar-changing driven wheel, and limit protrusions corresponding to limiting the forks of the control fork are arranged on the upper sides of the calendar-changing driving wheel and the calendar-changing driven wheel.

[0006] Furthermore, the clock is also provided with a reduction transmission wheel meshing with the outer gear of the calendar change driving wheel, and the reduction wheel is rotatably provided on the clock and meshing with the outer gear of the reduction transmission wheel.

[0007] The beneficial effects of the utility model are:

[0008] The present utility model designs a clockwork start instant jump structure for a clock. When the eccentric cam on the central axis of the 24-hour wheel pushes the control rod to the topmost position, the limit of the calendar-changing driven wheel is unlocked, and at the same time, the calendar-changing driving wheel is restricted. When the 24-hour wheel continues to move and the eccentric cam pushes the control rod to the lowermost position, the limit of the calendar-changing driving wheel is unlocked. The calendar-changing driving wheel starts to rotate freely under the drive of the spring box. At this time, the calendar-changing driving wheel can drive the calendar disc to change the calendar. When the calendar-changing driven wheel rotates simultaneously with the calendar-changing driving wheel until the control fork of the control rod abuts against the limit protrusion of the calendar-changing driven wheel, the calendar-changing driven wheel stops moving, thereby also restricting the calendar-changing driving wheel from moving, and thus completing one drive. Next, it waits for the unlocking drive after the next 24 hours. Similarly, it can drive all functions such as calendar, week calendar, moon phase, year calendar, perpetual calendar, etc. that need to be driven once every 24 hours, as well as the instant jump alarm function at a specific time, without affecting the stability of the timekeeping mechanism of the clock itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 FIG. is a schematic diagram of the clockwork start instant jump structure in the present utility model;

[0010] Figure 2 FIG. is a schematic diagram of the calendar-changing driving wheel in the present utility model.

[0011] The description of the reference numerals in the drawings is as follows:

[0012] 1 is the 24-hour wheel, 2 is the eccentric cam, 3 is the control rod, 4 is the spring box, 5 is the driving gear, 6 is the calendar-changing driving wheel, 7 is the calendar-changing driven wheel, 8 is the control fork, 9 is the limit protrusion, 10 is the reduction drive wheel, and 11 is the reduction wheel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] The following describes the embodiments of the present disclosure in detail with reference to the drawings.

[0014] The following illustrates the embodiments of the present disclosure through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present disclosure from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of them. The present disclosure can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present disclosure without creative efforts belong to the scope of protection of the present disclosure.

[0015] In order to implement the instant jump structure without affecting the stability of the timekeeping mechanism of the clock itself, the specific content of the present utility model is as follows.

[0016] Combination Figure 1 and Figure 2 As shown, the embodiment of the utility model is a clockwork spring start instantaneous jump structure, which importantly includes an eccentric cam 2 fixed on the central axis of the clockwork 24-hour wheel 1, a control rod 3 rotatably arranged on the clockwork and whose rear end contacts and toggles the eccentric cam 2, a clockwork box 4 rotatably arranged on the clockwork, a calendar change driving wheel 6 rotatably arranged on the clockwork and whose driving gear 5 at the lower side of the central rotating shaft is meshed with the outer gear of the clockwork box 4, a calendar change driven wheel 7 rotatably arranged on the clockwork and meshed with the outer gear of the calendar change driving wheel 6, a control fork 8 is arranged at the front end of the control rod 3, and two forks of the control fork 8 are respectively located above the calendar change driving wheel 6 and the calendar change driven wheel 7, and the upper sides of the calendar change driving wheel 6 and the calendar change driven wheel 7 are provided with limit protrusions 9 corresponding to limit the forks of the control fork 8;

[0017] The instantaneous jump structure of the clock gear spring start is designed in this way. When the eccentric cam 2 on the central axis of the 24-hour wheel 1 pushes the control rod 3 to the top, the limit of the calendar-changing driven wheel 7 is unlocked and the calendar-changing driving wheel 6 is restricted at the same time; the 24-hour wheel 1 continues to move, and the eccentric cam 2 pushes the control rod 3 to the bottom, the limit of the calendar-changing driving wheel 6 is unlocked, and the calendar-changing driving wheel 6 starts to rotate freely under the drive of the barrel 4. At this time, the calendar-changing driving wheel 6 can drive the calendar piece to change the calendar; when the calendar-changing driven wheel 7 follows the calendar-changing driving wheel 6 and rotates simultaneously to the point where the control fork 8 of the control rod 3 abuts against the limit protrusion 9 of the calendar-changing driven wheel 7, the calendar-changing driven wheel 7 stops moving, thereby also restricting the calendar-changing driving wheel 6 from stopping moving, thus completing one drive, and then waiting for the unlocking drive after the next 24 hours; in the same way, all functions such as the calendar, weekly calendar, moon phase, annual calendar, perpetual calendar, etc. that need to be driven once every 24 hours, as well as the instantaneous jump alarm function at a specific time, can be driven without affecting the stability of the clock's own travel mechanism.

[0018] Preferably, the clock is also provided with a reduction transmission wheel 10 meshing with the outer gear of the calendar changing driving wheel 6, and a reduction wheel 11 rotatably provided on the clock and meshing with the outer gear of the reduction transmission wheel 10, and the reduction wheel 11 controls the calendar changing speed of the calendar changing driving wheel 6 through the reduction transmission wheel 10.

[0019] The above is only for explaining the implementation mode of the utility model and is not used to limit the utility model. For those skilled in the art, any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the utility model without creative work should be included in the protection scope of the utility model.

Claims

1. A clock spring start instantaneous jump structure, characterized in that: It includes an eccentric cam fixed on the central axis of the 24-hour wheel of the clock, a control lever rotatably arranged on the clock and with the rear end in contact with the eccentric cam for linkage, a clockwork box rotatably arranged on the clock, a calendar-changing driving wheel rotatably arranged on the clock and with the driving gear on the lower side of the central rotating shaft meshing with the outer gear of the clockwork box, and a calendar-changing driven wheel rotatably arranged on the clock and meshing with the outer gear of the calendar-changing driving wheel. A control fork is arranged at the front end of the control lever, and two forks of the control fork are respectively located above the calendar-changing driving wheel and the calendar-changing driven wheel, and limiting protrusions corresponding to limiting the forks of the control fork are arranged on the upper sides of the calendar-changing driving wheel and the calendar-changing driven wheel.

2. The watch spring start instantaneous jump structure according to claim 1, characterized in that: The clock is also provided with a reduction transmission wheel meshing with the outer gear of the calendar change driving wheel, and the reduction wheel rotatably arranged on the clock and meshing with the outer gear of the reduction transmission wheel.

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