A cold air mechanism and its advertising box

Abstract

The invention relates to a cold air mechanism and an advertising box thereof. The cold air mechanism comprises a fourth cold air shaft, wherein one end of the fourth cold air shaft is assembled and fixed with a power plate; the power plate is eccentrically assembled and fixed with one end of a fifth cold air shaft; the fifth cold air shaft and a cold air bevel gear can move axially but cannot be rotatably assembled circumferentially; a memory spring is arranged on a part, locate between the cold air bevel gear and the power plate, on the fifth cold air shaft in a sleeving way; a first thrust ball bearing is further arranged on the fifth cold air shaft in a sleeving way and is assembled and fixed with the cold air bevel gear; two ends of the memory spring are assembled and fixed with the memory spring and the power plate; the other end of the fifth cold air shaft is assembled and fixed with a holding plate; the cold air bevel gear is in meshing drive with an inner inclined tooth part; the inner inclined tooth part is arranged on a lower installation barrel; the fifth cold air shaft and the holding plate are assembled and fixed; the lower installation barrel is further arranged outside an auxiliary barrel in a sleeving way; the auxiliary barrel is fixed onto a lower support plate; and the end surface of the auxiliary barrel contacts the holding plate.

Description

technical field [0001] The invention relates to an advertising box, in particular to a cold air mechanism and an advertising box. Background technique [0002] The rotating advertising box is an advertising light box that has emerged in recent years. It mainly adopts a circular rotation design, so that each surface of the advertising box can be rotated for intermittent display. At present, in order to save energy, most of the rotary advertising boxes are driven by wind energy. The main principle is to use the airflow to drive the impeller to rotate, and then drive the advertising box to rotate synchronously through the shaft connected to the impeller. This method is very environmentally friendly and has no energy consumption. It is the mainstream solution for rotary advertising boxes at present. [0003] However, at present, it is difficult to control the speed of the advertising box if it is driven solely by wind energy. When the wind is relatively strong, the rotation spe...

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Problems solved by technology

[0003] However, at present, it is difficult to control the speed of the advertising box if it is driven solely by wind energy. When the wind is relatively strong, the rotation speed of the advertising box will also become relatively large. This will seriously affect the display effect of the advertising box. On the one hand, if the speed is too fast, the advertising box will be abnormally worn or even damaged, which will seriously shorten the life of the advertising box.

At present, there is also a way to design the resistance of the advertising box to be large when rotating, but once the wind force is too small, the advertising box cannot be driven to rotate, which is obviously very impractical.

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