Marine timepiece movement

Abstract

The utility model relates to the technical field of clock movement, disclose a kind of marine clock movement, including frame, and the second hand motor, hour hand motor and minute hand motor fixedly installed in frame, rotation support the connecting shaft of frame, gear assembly is installed on connecting shaft and is separately driven by second hand motor, hour hand motor and minute hand motor, and output shaft is installed in the top of gear assembly and is driven by gear assembly, the structure of the output shaft includes coaxial core laminated setting hour hand shaft sleeve, minute hand shaft sleeve and second hand shaft, the gear assembly inside is integrated with three mutually independent transmission gear trains.The utility model solves the problem that the current marine clock movement is slow in time correction, and cannot realize the synchronous independent adjustment of hour, minute and second, achieves the beneficial effect that accurate time correction can be completed within two minutes, and realizes rapid calibration of marine level.

Description

Technical Field

[0001] This utility model relates to the field of watch movement technology, and in particular to a marine watch movement. Background Technology

[0002] As key equipment for ship navigation and timekeeping, marine clocks have extremely high requirements for time accuracy and calibration efficiency. Ships need to frequently cross different time zones during ocean voyages, so fast and accurate time calibration of clocks is an important part of daily operations.

[0003] Traditional watch movements, especially those using a dual-motor design, have a structure that restricts the movement of the second, minute, and hour hands during time adjustment. The second hand must be adjusted to zero first, and then the minute hand drives the hour hand to rotate slowly. The entire time adjustment process is cumbersome and time-consuming. This asynchronous adjustment method makes it impossible to meet the requirements of rapid response and precise alignment when facing large time zone changes in maritime applications, reducing the work efficiency of crew members and posing potential risks due to time adjustment delays in emergency situations.

[0004] Therefore, this utility model proposes a marine watch movement to overcome the shortcomings of the prior art. Utility Model Content

[0005] In view of the problem that existing marine watch movements cannot achieve synchronous and independent adjustment of the hour, minute, and second hands due to the limitations of their internal transmission structure, resulting in a time-consuming and cumbersome time setting process, this utility model aims to provide a marine watch movement with an improved structure that can effectively solve the above problems.

[0006] This utility model provides a marine watch movement, including a frame, a second hand motor, an hour hand motor and a minute hand motor fixedly installed in the frame, a connecting shaft rotatably supported by the frame, a gear assembly installed on the connecting shaft and independently driven by the second hand motor, the hour hand motor and the minute hand motor, and an output shaft installed on the top of the gear assembly and driven by the gear assembly.

[0007] The output shaft structure includes an hour hand shaft sleeve, a minute hand shaft sleeve, and a second hand shaft that are coaxially stacked.

[0008] Furthermore, the gear assembly integrates three independent transmission gear systems. These three independent transmission gear systems transmit power from the second hand motor, the hour hand motor, and the minute hand motor to the second hand shaft, the minute hand shaft sleeve, and the hour hand shaft sleeve, respectively, via connecting shafts. Through this structural combination, independent power can be provided for the movement of the hour, minute, and second hands.

[0009] Preferably, the gear assembly includes a reduction gear system consisting of a large gear and a small gear meshing together. The reduction gear system is part of three independent transmission gear systems, and its precise gear ratio design enables it to stably convert the high-speed rotation from the motor into the power required for the slow rotation of the pointer.

[0010] Preferably, the nautical watch movement further includes a connecting rod and a hammer base. The connecting rod is rotatably connected within the frame, and the hammer base is fixedly mounted on the top of the connecting rod. The connecting rod and the hammer base together constitute the sound-generating drive component for the alarm clock function, realizing a practical functional extension beyond precise timekeeping.

[0011] Preferably, the hammer base is installed on the inner wall adjacent to the frame. This positional relationship ensures that the hammer base can effectively and stably strike or vibrate under the drive of the connecting rod, thereby generating a clear reminder signal.

[0012] Preferably, the frame is further fixed with the positioning and connection structure, which is used to securely install the entire marine watch movement inside the watch case to ensure the stability of the movement in a bumpy environment.

[0013] Preferably, the positioning and connection structure is a mounting lug or mounting hole provided on the outer wall of the frame. This specific structural form provides a convenient and reliable fixed interface for the assembly of the movement.

[0014] Preferably, the second hand motor, hour hand motor and minute hand motor are spaced apart and mounted on the base plate of the frame in a manner surrounding the output shaft. This spatial layout optimizes the space utilization inside the movement and makes the overall structure more compact and reasonable.

[0015] Preferably, both ends of the connecting shaft are rotatably supported on the frame by bearings or bushings. This high-precision support method ensures the coaxiality and smooth rotation of the connecting shaft during high-speed torque transmission, which is a key structure to ensure transmission accuracy.

[0016] Preferably, as a specific transmission connection method, the power output end of the clock motor is fixedly connected to a first drive gear, and the first drive gear meshes with a first driven gear on the corresponding connecting shaft. This gear meshing method ensures the reliability and smoothness of power transmission from the motor to the connecting shaft.

[0017] This utility model has the following beneficial effects: 1. This utility model solves the problem of long time consumption and cumbersome operation in the calibration process of a marine watch movement when calibrating across time zones because the hour, minute and second hands cannot be adjusted synchronously and independently. It sets up independent second hand motors, hour hand motors and minute hand motors within the frame, and they work together with their independent transmission gear trains to drive the coaxially stacked output shaft. It achieves the beneficial effect of completing accurate time setting within two minutes and realizing rapid calibration for marine use.

[0018] 2. This utility model solves the problem of some existing marine clocks having limited functions and lacking practical reminder functions by integrating an alarm clock drive structure consisting of a connecting rod and a hammer base into the movement. It achieves high-precision timekeeping and rapid calibration while providing reliable physical sound or vibration reminders according to preset times, thus enhancing the practicality and integration of the product. Attached Figure Description

[0019] Figure 1 This is a perspective view of a marine watch movement proposed in this utility model; Figure 2 This is an exploded view of a marine watch movement proposed in this utility model; Figure 3 This is a top view of a partial structure of a marine watch movement proposed in this utility model; Figure 4 This is a partial structural diagram of a marine watch movement proposed in this utility model; Figure 5 This is a partial structural diagram of a marine watch movement proposed in this utility model; Figure 6 This is a partial structural exploded view of a marine watch movement proposed in this utility model.

[0020] Legend: 1. Frame; 2. Second hand motor; 3. Hour hand motor; 4. Minute hand motor; 5. Connecting shaft; 6. Connecting rod; 7. Hammer base; 8. Gear assembly; 9. Output shaft; 10. Positioning and connection structure. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0022] Example: Please refer to Figures 1 to 6 This utility model provides a marine watch movement that aims to solve the technical problem that an existing marine watch movement is slow to adjust and cannot achieve synchronous and independent adjustment of the hour, minute and second hands.

[0023] Please refer to Figure 1 and Figure 2 A marine chronometer movement includes a frame 1, a gear assembly 8 and an output shaft 9 housed within the frame 1. The frame 1 provides a mounting base and structural support for the entire marine chronometer movement. The gear assembly 8 is used to transmit power and adjust the rotational speed, and the output shaft 9 is used to output the final power to drive the hands to rotate.

[0024] Please refer to Figure 3 and Figure 4 The frame 1 is internally fixedly equipped with a second hand motor 2, an hour hand motor 3, and a minute hand motor 4. The second hand motor 2, the hour hand motor 3, and the minute hand motor 4 are used to provide independent power sources for the movement of the second hand, the hour hand, and the minute hand, respectively.

[0025] Please refer to Figure 4 , Figure 5 and Figure 6 A marine watch movement also includes a connecting shaft 5 rotatably supported on a frame 1, and an output shaft 9 mounted on top of a gear assembly 8 and driven by the gear assembly 8. The connecting shaft 5 is used to transmit high-speed power generated by a motor. The structure of the output shaft 9 includes an hour hand bushing, a minute hand bushing, and a second hand bushing arranged coaxially. This stacked structure provides a physical basis for the coaxial independent rotation of the hour, minute, and second hands.

[0026] The gear assembly 8 is mounted on the connecting shaft 5, and the gear assembly 8 integrates three independent transmission gear systems. The power output ends of the second hand motor 2, the hour hand motor 3, and the minute hand motor 4 are respectively connected to the three independent transmission gear systems in the gear assembly 8 through their respective connecting shafts 5. The three independent transmission gear systems are then respectively connected to the second hand shaft, the minute hand shaft sleeve, and the hour hand shaft sleeve. Through this structure, the power of the three independent motors is precisely distributed to the corresponding hand drive shafts, thereby providing independent power for the movement of the hour, minute, and second hands and ensuring that the three can operate simultaneously to meet the needs of rapid calibration.

[0027] As a preferred embodiment, please refer to Figure 3 The gear assembly 8 includes a reduction gear system composed of a large gear and a small gear meshing together. The reduction gear system forms part of three independent transmission gear systems. The gear ratio of the large gear and the small gear is set to accurately convert the high-speed rotation output by the second hand motor 2, the hour hand motor 3 and the minute hand motor 4 into the smooth low-speed motion required by the output shaft 9, thereby ensuring the smoothness and accuracy of the timing and calibration process.

[0028] As another preferred embodiment, please refer to Figure 5 and Figure 6 A marine clock movement also includes a connecting rod 6 and a hammer base 7. One end of the connecting rod 6 is rotatably connected to the frame 1, and the hammer base 7 is fixedly installed on the top of the connecting rod 6. The hammer base 7 is installed on the inner wall adjacent to the frame 1. This structure constitutes the sound-generating drive component of the alarm clock function, which is used to drive the hammer base 7 to perform a stable striking or vibrating action when an alarm clock signal is received.

[0029] As another preferred embodiment, please refer to Figure 3 The frame 1 is also fixed with a positioning and connection structure 10, which is a mounting lug or mounting hole set on the outer wall of the frame 1. It is used to securely install and fix the entire marine watch movement in the watch case, or to realize the docking with external functional modules.

[0030] As another preferred embodiment, please refer to Figure 4 The second hand motor 2, the hour hand motor 3, and the minute hand motor 4 are installed on the base plate of the frame 1 in a way that they are spaced around the output shaft 9. This layout helps to achieve a compact and balanced structure.

[0031] As another preferred embodiment, both ends of the connecting shaft 5 are rotatably supported on the frame 1 by bearings or bushings. This support method can effectively ensure the coaxiality of the connecting shaft 5 during high-speed torque transmission and avoid affecting the transmission accuracy due to shaking.

[0032] As a specific transmission connection method, the power output end of the hour hand motor 3 is fixedly connected to the first drive gear, which meshes with the first driven gear on the corresponding connecting shaft 5. A similar structure is also applied to the transmission path of the second hand motor 2 and the minute hand motor 4.

[0033] Working principle: After starting the calibration mode and inputting the target time, the second hand motor 2, hour hand motor 3 and minute hand motor 4 fixed in the frame 1 synchronously receive the calibration signal and output independent high-speed power to ensure that the drive sources of the hour, minute and second hands operate synchronously. The high-speed power of the motor is transmitted to the gear assembly 8 through their respective connecting shafts 5. The connecting shafts 5 are supported by bearings or bushings to ensure the coaxiality of the rotation. The gear assembly 8 realizes the precise transmission of power and speed adjustment through three independent transmission gears composed of large gears and small gears, and converts the high-speed rotation of the motor into the smooth low-speed movement required by the hands. After deceleration, the three power sources ultimately act on the hour hand sleeve, minute hand sleeve, and second hand shaft of output shaft 9, respectively, driving the hour, minute, and second hands to rotate synchronously and rapidly until they are precisely aligned with the target time within a preset time, completing the marine-grade rapid calibration. After calibration, the system automatically switches to normal timing mode, at which point the three motors run at normal timing speed. When the preset time is reached, the alarm clock module triggers a reminder signal. The signal drives the connecting rod 6 in the frame 1 to transmit driving force synchronously, which drives the hammer base 7 at the top to complete a stable tapping or vibration action and emit a reminder signal.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A nautical watch movement, comprising a frame (1); Its features are, Also includes: The second hand motor (2), the hour hand motor (3) and the minute hand motor (4) are fixedly installed in the frame (1), and the connecting shaft (5) is rotatably supported by the frame (1). A gear assembly (8) is mounted on the connecting shaft (5) and driven independently by the second hand motor (2), the hour hand motor (3), and the minute hand motor (4), and an output shaft (9) is mounted on top of the gear assembly (8) and driven by the gear assembly (8). The structure of the output shaft (9) includes an hour hand bushing, a minute hand bushing, and a second hand shaft stacked coaxially. The gear assembly (8) integrates three independent transmission gear systems. The three independent transmission gear systems transmit the power from the second hand motor (2), the hour hand motor (3), and the minute hand motor (4) to the second hand shaft, the minute hand bushing, and the hour hand bushing via the connecting shaft (5), thereby providing independent power for the movement of the hour hand, minute hand, and second hand.

2. The nautical watch movement according to claim 1, characterized in that, The gear assembly (8) includes a reduction gear system composed of a large gear and a small gear meshing together. The reduction gear system is used to convert the high-speed rotation of the second hand motor (2), the hour hand motor (3) and the minute hand motor (4) into the smooth low-speed motion of the output shaft (9).

3. A nautical watch movement according to claim 1, characterized in that, The nautical watch movement also includes a connecting rod (6) and a hammer base (7). The connecting rod (6) is rotatably connected to the frame (1), and the hammer base (7) is fixedly installed on the top of the connecting rod (6).

4. A marine chronometer movement according to claim 3, characterized in that, The hammer base (7) is installed on the inner wall adjacent to the frame (1), and the hammer base (7) is used to generate a stable striking or vibrating action under the drive of the connecting rod (6).

5. A marine chronometer movement according to claim 1, characterized in that, The frame (1) is also fixed with a positioning and connection structure (10), which is used to fix a marine watch movement inside the watch case.

6. A marine chronometer movement according to claim 5, characterized in that, The positioning and connection structure (10) is a mounting lug or mounting hole provided on the outer wall of the frame (1).

7. A marine chronometer movement according to claim 1, characterized in that, The second hand motor (2), the hour hand motor (3) and the minute hand motor (4) are mounted on the base plate of the frame (1) at intervals around the output shaft (9).

8. A nautical watch movement according to claim 1, characterized in that, Both ends of the connecting shaft (5) are rotatably supported on the frame (1) by bearings or bushings to ensure the coaxiality of the connecting shaft (5) during torque transmission.

9. A marine chronometer movement according to claim 1, characterized in that, The power output end of the clock motor (3) is fixedly connected to a first drive gear, which meshes with a first driven gear on the corresponding connecting shaft (5).

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