Reset slow swing mechanism of door curtain

Abstract

The invention relates to the technical field of door curtains, and discloses a reset slow swing mechanism of a door curtain. The mechanism comprises a curtain body; an air storage cavity is formed in the upper end of an inner cavity of the curtain body and is in an inverted U shape; an inflation groove is formed in the middle of the inner cavity of the curtain body and is in an inverted T shape; the upper end of the inflation groove communicates with the lower end of the middle of the air storage cavity; and the middles of the two sides of the air storage cavity are movably sleeved with piston blocks. By arranging the reset slow swing mechanism, when the door curtain is normally opened, the piston blocks move upwards under the action of upward thrust, so that air in the air storage cavity is continuously squeezed into the inflation groove, the pressure intensity in the inflation groove is increased, and the lower end of the door curtain is straightened; and when the door curtain is automatically reset, the swinging efficiency of the door curtain is reduced through the straightened lower end of the door curtain, so that the situation that the lower end of the door curtain is brought out by a relatively large distance due to the fact that the door curtain is too soft, and consequently the swinging amplitude is relatively large when the door curtain is reset is avoided.

Description

technical field [0001] The invention relates to the technical field of door curtains, in particular to a reset slow-swing mechanism for door curtains. Background technique [0002] Door curtains are commonly used by people at the entrances and exits of homes, shopping malls and units. Summer door curtains are not only beautiful but also prevent mosquitoes from entering, while winter door curtains can be used to keep indoors warm. Door curtains are usually made of cotton and rubber materials. The counterweight keeps it vertical under the action of gravity, thereby isolating the indoors from the outdoors while allowing pedestrians to enter and exit. [0003] When the door curtain is in normal use, due to pedestrians queuing in and out in shopping malls and other places, the door curtain will be thrown back greatly when it is automatically restored, which will cause the door curtain to hit pedestrians and affect their normal entry and exit. Usually, magnetic force is used to c...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the use of the existing door curtains proposed in the background technology, the present invention provides a reset and slow swing mechanism for the door curtain, which has the advantages of reset slow swing and negative pressure sealing, and solves the problem of swinging of the door curtain during normal use. The technical problem of hitting follow-up pedestrians and degaussing affects the sealing effect

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