Roller shutter door motor mechanical sticking prevention apparatus

Abstract

The present invention provides a roller shutter door motor mechanical sticking prevention apparatus. When a driving motor rotates normally, output torque of the driving motor and torque of a torsion spring are equal and opposite in direction; during the roller shutter door sheet descending process, when encountering obstacles, torque difference is generated between the output torque of the driving motor and the torque of the torsion spring; the force generated by the torque difference drives first clamp proof teeth through second clamp proof teeth to separate the first clamp proof teeth and the second clamp proof teeth, an end surface of the second clamp proof teeth drives a vertical touch rod unit of a touch rod, the vertical touch rod unit drives a sleeve to rotate around a fixed rod, a horizontal touch rod unit rotates along with the sleeve, and a first touch joint on the horizontal touch rod unit is in contact with a first elastic switch; the driving motor is powered off, and the roller shutter door sheet stops descending; when the obstacles are disappeared, a fastening spring reversely pushes the first clamp proof teeth, the touch rod returns, and the first touch joint is separated from the first elastic switch; and power of the driving motor is recovered, the roller shutter door sheet continues to descend, and the descending process of the whole roller shutter door sheet is completed.

Description

technical field [0001] The invention relates to an anti-jamming device for a rolling gate, in particular to an anti-jamming structure during the descending process of the rolling gate, and belongs to the technical field of rolling gate applications. Background technique [0002] The rolling gate, also known as the "rolling shutter door", is a door that is connected in series with a lot of movable joints. In a fixed slideway, the upper and lower doors are rotated around the scroll above the door. Rolling gates are suitable for commercial facades, garages, shopping malls, hospitals, factories and mines and other public places or residences. Especially the door opening is large, and it is convenient and quick to open the place where it is inconvenient to install the ground door body. For example, it is used for garage doors, shopping malls, fireproof rolling gates, and hangar doors. [0003] There are two common control methods for rolling gates: control handle or on-line con...

AI Technical Summary

Problems solved by technology

[0005] 1. The structure is relatively complicated. It has other accessories such as transmission chains and other transmission mechanisms on both sides of the rolling door.

[0006] 2. When the traditional rolling shutter door page fails, the rolling shutter door page is often locked, which requires professional maintenance personnel to repair, thus increasing the failure cost

[0007] 3. The limit flexibility of the traditional rolling shutter door leaf is poor, and the action direction is single; taking the usual garage door as an example, during the rising process of the rolling shutter door leaf, if the operating door leaf moves downward, the action process is generally lifted to the top first and then Decline, which is determined by the single action direction of the chain drive, so its action process is slightly redundant

[0008] 4. In the existing rolling gate, when the rolling shutter door encounters people, objects or other obstacles during the descending process, it will continue to run, which will easily cause the motor to burn out and cause damage to the user at the same time

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