Pure mechanical pneumatic elevator door capable of preventing people from being clamped

Abstract

The invention discloses a pure mechanical pneumatic elevator door capable of preventing people from being clamped. The pure mechanical pneumatic elevator door comprises a door frame and sliding doors,wherein a sliding cavity is formed in the door frame; the two sliding doors which are symmetrical in position and shape are connected to the interior of the sliding cavity in a sliding mode; door closing air cylinders are fixedly connected to the positions, which is close to the upper sides, in the sliding doors; the ends, which face the axis of symmetry, of the door closing air cylinders are closed, and the other ends of the door closing air cylinders are open; first sealing rings are fixedly connected to the positions, which make contact with the inner walls of the door closing air cylinders, of the door closing flap heads; and door closing pistons are fixedly connected to the ends, which are away from the axis of symmetry, of the door closing flap heads, and the other ends of the doorclosing pistons extend into the sliding cavity and are fixedly connected to the cavity wall of the sliding cavity. The door is opened and closed in a pneumatic mode, and the door is closed through a set of locking mechanism, so that the door closing action can be prevented from stopping by collision, and the driving process of closing or opening the door is stopped only when the door is opened completely or is closed completely.

Description

Technical field[0001]The invention relates to the related field of access control systems, in particular to a purely mechanical pneumatic elevator door for preventing people from pinching.Background technique[0002]The subway is a kind of public transportation, fast and safe, and convenient for people's daily life. At this stage, most subway doors have two layers inside and outside, with one layer on the car and the other on the platform, which increases the safety of people waiting on the platform. To prevent the danger of people from falling, the subway doors on the inner and outer floors also increase the risk of being caught. Although the subway has regulations and standards for riding, there are often forced gates or forced rushing after the bell rings. At this stage, there are also many cases of injuries and deaths caused by subway door clamps. The current subway station has also specially arranged staff who manage the platform, and the subway driver will repeatedly confirm the...

AI Technical Summary

Problems solved by technology

[0002] The subway is a kind of public transportation. It is fast and safe, and it is convenient for people's daily life. Most of the subway doors at this stage have two layers, one on the train and one on the platform, which increases the safety of passengers waiting on the platform. To prevent the danger of people falling, but the subway doors on the inner and outer floors also increase the danger of people being caught after bein

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