Second hand tail driving type mechanical clock

Abstract

The present invention relates to clock and watch industry, in particular, it is a special hand-moving mechanism of extra-large type mechanical clock. In the upper end of second hand shaft a ring of projection is set, and the second hand is cover-mounted on the upper portion of said projection, a second wheel is fixedly cover-mounted in the middle portion of the second hand shaft, a central shaft seat cover is cover-mounted between the projection on second hand shaft and second wheel, on the clock dial surface a large toothed ring is set, a driving shaft parallel to the second hand is set on the upper portion of the second hand, on the one end of the second hand close to large toothed ring a through hole is set, a short shaft is passed through said through hole, the upper portion of the short shaft is equipped with cone gear, and its lower portion is equipped with a gear, a shaft seat cover is cover-mounted between the second hand on the short shaft and gear, two ends of the driving shaft are equipped with a power mechanism and a cone gear, the cone gear is meshed with said cone gear, and the gear is meshed with toothed pin on the large toohed ring.

Description

technical field [0001] The utility model relates to the clock and watch industry, in particular to a special needle movement mechanism for an extra-large mechanical clock. Background technique [0002] The hand movement of traditional mechanical clocks is to rotate clockwise according to the central axis so that the pointer fixed on the central axis moves, that is, the central transmission type. Factors such as mechanical transmission friction resistance and wind pressure must consume a lot of power to make the three needles operate normally; A crucial issue; the second hand of a special large-scale clock must be endowed with new meanings, adding a variety of novelty items to the running extra-large second hand, such as double dragon tossing, time channel, against time, time adventures, sightseeing hall, leisure Hall, challenging thrills, getting married, etc., so the mass and resistance of the second hand will increase several times or even dozens of times, so the power mu...

AI Technical Summary

Problems solved by technology

[0002] The hand movement of traditional mechanical clocks is to rotate clockwise according to the central axis so that the pointer fixed on the central axis moves, that is, the central transmission type. Factors such as mechanical transmission friction resistance and wind pressure must consume a lot of power to make the three needles operate normally; A crucial issue; the second hand of a special large-scale clock must be endowed with new meanings, adding a variety of novelty items to the running extra-large second hand, such as double dragon tossing, time channel, against time, time adventures, sightseeing hall, leisure Hall, challenging thrills, getting married, etc., so the mass and resistance of the second hand will increase several times or even dozens of times, so the power must also be greatly increased. It is obviously not suitable to continue to use the traditional center needle movement method of mechanical clocks. up

Images