A wide-channel access control wing middle-wing door mechanism

Abstract

The invention discloses a wing-in-wing door mechanism for an entrance guard for a wide channel. The mechanism comprises a support base, a wing door swing arm, a movable chain wheel, a large wing door and a small wing door, wherein a fixed chain wheel is fixed on the support base through a shaft; the bottom of the wing door swing arm is in pivot connection with the support base through a shaft of the fixed chain wheel; the movable chain wheel is connected with a chain of the fixed chain wheel, and can be in pivot connection with the wing door swing arm in a manner of rotating relative to the wing door swing arm; a first arc-shaped gear structure is fixed on a shaft of the movable chain wheel; the large wing door is fixed on the wing door swing arm, and a small wing door rotating shaft is arranged on the large wing door; the small wing door is in pivot connection with the large wing door through the small wing door rotating shaft; and a second arc-shaped structure is fixed on the small wing door rotating shaft, and is in meshed and transmission connection with the first gear structure. The wing-in-wing door mechanism for the entrance guard of the wide channel adopts the transmission principle of chain transmission composite planetary gears, so that a larger back-out angle obtained by the wing-in-wing door is achieved, and the mechanism can be widely used as an entrance guard device for the wide channel.

Description

technical field [0001] The invention relates to a wing-in-wing door mechanism for wide-channel access control, which can be widely used in high-speed railways, subways, theaters and other places. Background technique [0002] In recent years, with the extensive use of high-speed rail, bullet trains, subways and other ticket gates, the disadvantages of the traditional cam push rod mechanism wing gates in the prior art have become more and more obvious. Due to cam wear or mechanism displacement, the equipment always needs staged Therefore, the wing door mechanism of the access control device made of the principle of planetary gear transmission appeared in the patent CN102913093A, which completely replaced the cam push rod mechanism of the traditional wing gate, and solved the problem that the equipment is always subject to short maintenance periods. However, the wing door mechanism in this patent is suitable for narrow access control devices used as pedestrian passages due to ...

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the extensive use of high-speed rail, bullet trains, subways and other ticket gates, the disadvantages of the traditional cam push rod mechanism wing gates in the prior art have become more and more obvious. Due to cam wear or mechanism displacement, the equipment always needs staged Therefore, the wing door mechanism of the access control device made of the principle of planetary gear transmission appeared in the patent CN102913093A, which completely replaced the cam push rod mechanism of the traditional wing gate, and solved the problem that the equipment is always subject to short maintenance periods. However, the wing door mechanism in this patent is suitable for narrow access control devices used as pedestrian passages due to the limited angle of rotation of the wing door in the wing, but it has certain limitations when the passage needs to be wider, for example The access control channel for goods passing by needs to be wider. At this time, it is not easy to realize the patented wing door mechanism.

Of course, it is also possible to increase the number of teeth of the sun gear and change the speed ratio of the planetary gear to obtain a larger swing-out angle of the wing-in-wing door, but there will also be a problem that the increased number of sun gear teeth will exceed the edge of the support base. Exposed, which not only makes the machine unit occupy too wide aisle but also is not allowed

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