Electric double open inner swinging door

Abstract

The invention discloses an electric double open inner swinging door. The electric double open inner swinging door includes a sector gear which is in coaxial transmission with a door shaft of the innerswinging door, a driving mechanism used for driving the sector gear to rotate and an unlocking mechanism. The driving mechanism comprises a motor gear and a motor which drives the motor gear to rotate. The unlocking mechanism comprises an air cylinder, an air cylinder push rod extending from the air cylinder and a locking gear located at the end part of the air cylinder push rod. The tail end ofthe locking gear is in transmission connection with an axle of the motor gear. The locking gear is provided with a locking gear rotating shaft used for rotating horizontally around the locking gear. The locking gear rotating shaft is provided with an elastic element used for exerting torsional resilience force on the locking gear. When air enters the unlocking air cylinder, the air cylinder push rod pushes the locking gear to rotate, so that the motor gear meshes with the sector gear and twists the elastic element, when the unlocking air cylinder exhausts the air, the locking gear rotates backunder the action of the torsional resilience force of the elastic element and drives the motor gear to be separated from the sector gear. The electric double open inner swinging door is more reliablein locking and closing, good in mechanism stability and small in size, and has a safe and reliable anti-clamping function.

Description

technical field [0001] The invention relates to a door drive device for urban public transport vehicles, in particular to an electric double-opening inner swing door. Background technique [0002] Existing electric double-opening inner swing doors for buses and buses usually use couplings or crank connecting rods to realize the transmission between the cylinder and the door shaft, which has low transmission efficiency, high power, and is not energy-saving and environmentally friendly; The doors must be linked. In an emergency, if one door is blocked, the other cannot be opened, causing a great safety hazard. In addition, the driver cannot know the location and cause of the fault when it fails. cause inconvenience. In addition, the existing swing doors sometimes pinch passengers when the door is closed, and the existing swing doors are usually provided with sealing strips at the closing position. It is difficult to get out quickly, and there is a high risk of accident if th...

AI Technical Summary

Problems solved by technology

[0002] Existing electric double-opening inner swing doors for buses and buses usually use couplings or crank connecting rods to realize the transmission between the cylinder and the door shaft, which has low transmission efficiency, high power, and is not energy-saving and environmentally friendly; The doors must be linked together. In an emergency, if one door is blocked, the other cannot be opened, causing a great safety hazard. In addition, the driver cannot know the location and cause of the fault when the fault occurs, so it is necessary for troubleshooting and recovery. cause inconvenience

In addition, the existing swing doors sometimes pinch passengers when the door is closed, and the existing swing doors are usually provided with sealing strips at the closing position. Difficult to get out quickly and there is a high risk of accident if the vehicle continues to operate after pinching a finger or other object without taking action

There are also some swing doors, in order to prevent such accidents, or because of the defects in the sealing strips, they are prone to poor sealing after use, which will cause resistance to the operation of the vehicle and the environment inside the vehicle, which is not only safe Low and unattractive

[0003] Moreover, the existing electric double-opening inner swing door still has the defects of large volume, large air duct space occupation, and small application range, and some mechanisms that use cylinders for locking and unlocking have low reliability and low utilization efficiency of the cylinders. ; The reliability of the connection between the driving mechanism and the column is poor, and the open and close switches are mostly integrated, which is not conducive to debugging and maintenance

Images