A manual rolling shutter device for electric rolling shutter doors

Abstract

The invention discloses a manual rolling device for an electric rolling door, which comprises a supporting seat and a longitudinal output shaft, wherein a transverse rotating shaft is installed on the supporting seat, a driving wheel and a transverse bevel gear are coaxially and fixedly arranged on the transverse rotating shaft, a longitudinal bevel gear is installed on the longitudinal output shaft, and an axial moving device which can be used for enabling the transverse rotating shaft to axially move to further enable the transverse bevel gear and the longitudinal bevel gear to be engaged when the transverse rotating shaft is driven to rotate by the driving wheel and a resetting device are also installed on the transverse rotating shaft. The manual rolling action of the manual rolling device disclosed by the invention can be conveniently carried out by rotating the driving wheel by directly utilizing a chain and the like without carrying out other actions, and the engagement and disengagement with a central rotating shaft of the rolling door can be automatically realized after manual rolling is stopped, so that the manual rolling device is time-saving, labor-saving and quite safe.

Description

technical field [0001] The invention relates to the technical field of rolling doors, in particular to a manual rolling shutter device for electric rolling doors. Background technique [0002] At present, many storefronts and garages use rolling shutter doors, especially where the door opening is large and it is inconvenient to install the ground door body, the rolling shutter door can be opened conveniently and quickly. Rolling shutter doors are divided into manual rolling doors and electric rolling doors. As the name implies, manual rolling doors use manual rolling devices to open and close the rolling doors. For example, the utility model patent No. ZL200820115109.X discloses a manual rolling device. Manual rolling shutters are time-consuming, labor-intensive and slow, so many people use electric rolling doors, such as the electric rolling door described in the patent No. ZL2010206655803, the application date is December 17, 2010, which uses a rolling shutter motor to dri...

AI Technical Summary

Problems solved by technology

However, when the power fails, the shutter motor cannot work. For this reason, the electric shutter door is equipped with a manual shutter device, which can be manually opened and closed when the power is cut off. For example, the Chinese utility model whose patent number is ZL99228165. The new patent discloses a manual and electric rolling shutter door reel, which can realize the manual and electric functions of the rolling door. However, when such a rolling door is switched between electric and manual, it is necessary to insert the safety key into the safety hole. It is cumbersome to be able to realize the action of manual roller blinds. Once the motor is powered on during the manual process, it will cause harm to the operator, which has a very large safety hazard. Moreover, after the manual operation is over, the safety key needs to be manually removed from the safety hole. Pulling out is time-consuming and labor-intensive, and once forgotten, it is also relatively dangerous

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