Double sets of swing retractable hangar doors

Abstract

The invention relates to a double-set rotary moving telescopic hangar door which consists of at least one door unit. The door unit comprises a main door body, a main door traveling mechanism, a main door guide mechanism, an auxiliary door body, an auxiliary door traveling mechanism and an auxiliary door guide mechanism; the main door guide mechanism comprises a main door upper guide rail and a main door lower guide rail; the main door lower guide rail consists of a lower guide rail transverse part and a lower guide rail longitudinal part; one part of the main door traveling mechanism is positioned in the lower guide rail transverse part and the other part of the main door traveling mechanism is positioned in the lower guide rail longitudinal part; the auxiliary door guide mechanism comprises an auxiliary door upper guide rail and an auxiliary door lower guide rail; the auxiliary door upper guide rail is lower than the main door upper guide rail; the auxiliary door lower guide rail is lower than the main door lower guide rail; the main door body is provided with a saddle for supporting the auxiliary door body and the auxiliary door traveling mechanism; the saddle is in parallel and level to the auxiliary door lower guide rail; when the auxiliary door body enters the main door body, the main door body and the auxiliary door body are combined by a main and auxiliary door connection mechanism; when the auxiliary door body completely enters the main door body, the auxiliary door traveling mechanism brakes. The hangar door disclosed by the invention has the advantages of large width and small occupied space in the door opening process.

Description

technical field [0001] The present invention relates to a hangar door. technical background [0002] The large doors currently on the market are mainly rolling gates or push-pull hangar doors. The rolling gate is connected in series with multi-joint movable doors. In a fixed slideway, the upper and lower doors are rotated around the reel above the door. The disadvantage is that the door is noisy and has no sound insulation, heat insulation, heat preservation and other effects. For large-sized hangar doors, due to their large area and heavy weight, they cannot withstand the wind pressure to ensure safety, and when the wind blows, the door sheets of the rolling shutters shake violently and make a lot of noise. [0003] Chinese patent application 2013104041769 discloses a huge overall floating hangar door, including a door body, a first pulley, a steel wire rope, a second pulley, an upper wheel, a third pulley, a lower wheel, a telescopic oil cylinder, a vertical track and an ...

AI Technical Summary

Problems solved by technology

The disadvantages of this hangar door are: 1. There is only one door body, so the width of the hangar door is limited

If the door width is too large, it will reduce the stability of the door

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