Modular automatic arc door with concentric circle

Abstract

A modular automatic arc door with high-accuracy concentric circle is composed of main frame body in arc shape, internal arc surface whose curved arc surface uses the rotation center of automatic door as its circular center, more top holders fixed to inner surface of main frame body and having belt guide roller and drive motor, more bottom holders fixed to inner surface of main frame body and linked to arc track, and hanger sliding track above the door sash. Said top and bottom holders are arranged on circumference of main frame body in intervals. Its advantage is simple, quick and correct installation.

Description

Technical field [0001] The invention relates to an automatic door with a fixed or mobile closing device used at the opening of a building in general doors and windows in the construction field, and in particular to an automatic door that forms an anastomosis on the outer side of each upper and lower frame seat in a cabinet The curved curved surface of the inner side of the main frame allows the upper and lower frame to be installed on the circumference of the center of the arc-shaped main frame very easily and accurately, without additional Modular arc-type automatic doors of concentric circles that are calibrated or must be installed by senior technicians. Background technique [0002] See figure 1 Shown is a schematic structural diagram of an existing arc-type automatic door chassis. The current arc-type automatic door suitable for buildings includes a chassis M bent around the center of rotation of the automatic door and Two door leaves D, each door leaf D is fixedly connecte...

AI Technical Summary

Problems solved by technology

[0003] 1. Since the main frame plate M3 is welded between two opposite fixed angle frames M2, the main frame plate M3 is not absolutely perpendicular to the ground after welding, and it cannot be located at different positions on the arc. Each of the welded parts can be aligned with the same center position, that is, the deflection and deformation of the circumferential position will occur; in addition, it is impossible for the lower frame M5 to be welded on the main frame plate M3 absolutely vertically, so that the guide rail M51 can be installed immediately. As a result, non-concentric circular position deflection and deformation occur, so that when the spreader D1 of the door D slides on the guide rail M51, it is easy to produce non-concentric deformation circular motion, so that the door D cannot be opened and closed smoothly.

[0004] 2. In order to ensure that the main frame M3 can be accurately welded between the two fixed angle frames M2, and the lower frame M5 must be accurately welded on the main frame M3, it is necessary to perform accurate measurement verification before work. It is very troublesome and inconvenient to work, and senior technicians must be engaged in the welding and assembly work, and the personnel cost of hiring senior technicians is extremely high, which is very uneconomical

[0005] 3. Because the assembly operation is performed by manual welding, it is difficult to stabilize the quality of the circumferential position of the concentric circle, and it is time-consuming

[0006] As can be seen from the above, there are still many defects in the above-mentioned existing arc-shaped automatic doors, and they need to be improved.

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