A resistance protector and rolling gate

Abstract

The invention discloses a barrier protector and a roller gate. The barrier protector comprises a pressure sensing device, a casing, a fine adjustment device and a triggering device, wherein the fine adjustment device and the triggering device are arranged in the casing; the fine adjustment device comprises a fine adjustment screw and a contacting plate; the triggering device comprises a slider and a microswitch fixed on the slider; the bottom of the slider is connected with the pressure sensing device. The barrier protector adopts the fine adjustment device for adjusting the height of the contacting plate and can be adapted to different types of roller gates; moreover, the height of the contacting plate can be adjusted by the fine adjustment device according to the sag of an upper transmission chain when all door pieces of the roller gate rise to the top end, so that the pressure sensing device is prevented from triggering the microswitch; for the roller gate with lighter door pieces, the height of the contacting plate can be adjusted according to the sag of transmission chains in a descending process of the roller gate when no barrier exist under the door pieces, the pressure sensing device is prevented from triggering the microswitch in the normal descending process of the roller gate, and the accuracy of reverse rolling and shutdown prevention of the barrier protector in the presence of barriers is improved.

Description

technical field [0001] The invention relates to the technical field of rolling gates, in particular to an obstruction protector and a rolling gate. Background technique [0002] The rolling shutter door is connected in series with multi-joint movable door pieces, and rotates around the reel above the door piece to realize the door opening and closing. At present, electric rolling gates have gradually replaced manual rolling gates and are widely used in factories, shops, warehouses and garages. [0003] The electric rolling gate uses the positive and negative rotation of the motor to control the positive and negative rotation of the rotating shaft through the transmission chain, so as to realize the opening and closing of the rolling gate. However, when the rolling gate comes into contact with people or objects during the process of descending and closing, the motor does not stop rotating, and drives the rotating shaft to continue to run, causing the rolling gate to squeeze ...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a protection device and a rolling gate to solve the problems of poor adaptability of the existing protection devices and low accuracy of anti-winding stop when the resistance is encountered.

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