|PRODUCT NAME||Little bee child alarm clock|
|SIZE||13.5*11*17cm （Can be customized）|
|MATERIAL||Environmentally friendly ABS|
|COLOR||As your requirements(ex.Red, white, black, blue, purple, brown, camel, green, yellow…)|
|DELIVERY TIME||Within 15 or 30 days based on different quantity|
|FEATURES||Metal paint pointer, the clock pin is hard and firm, no needle is not dropped, convex glass design, restore the cute and full shape of the bee, simple digital clock face, clearer when watching.|
The movement structure of the mechanical alarm clock includes two systems: travel time and trouble.
1 travel time system. The original motion system uses a spring as an energy storage component, and the stored energy generally has two types of one day and eight days. The alarm clock for 1 day storage often adopts the structure without the barrel; the gears in the drive train often adopt the pin-shaped engagement of the modified cycloid, and the pinion (the wheel) is made of cylindrical steel wire; the escapement mechanism is more It adopts the pin type (commonly known as rough horse), which uses cylindrical steel wire as the fork pin, which has lower cost, but the travel time precision is also lower; the vibration system adopts the balance spring type. Due to the high speed of the balance wheel and the balance of 0.6 seconds, the balance between the balance shaft and the pendulum bearing reciprocating in 24 hours is 288,000 times. Therefore, the choice of the structure and material of the pendulum support directly affects the life of the clock. In order to improve the lifespan, the balance shaft and the pendulum bearing of the alarm clock produced in China adopt a cylindrical matching structure. The top of the balance shaft is a spherical surface with a large radius of curvature, and the pendulum bearing is made of an inexpensive glass drill. This surface contact or line contact is extended by a multiple. The maintenance cycle and travel time of the clock. Hairsprings are often made of phosphor bronze or nickel-based alloys.
2 trouble system: usually includes the alarm mechanism, the transmission mechanism, the escapement and the four parts. The original motion mechanism can also share a clockwork with the travel time mechanism, but a limit mechanism is added to the clockwork shaft to control the length of the spring release time; the escapement mechanism is isochronous to the vibration period. The requirements are not high, so the escapement governor without the natural vibration cycle is often used instead of the balance wheel and the balance spring, and the hammer is mounted on the fork shaft. The mechanical music alarm clock also has a roller with a needle driven by a hair-spinning bar. The needles are arranged according to the score, and the gong is turned to play the music.