Railless electric retractable door with parallel guiding device

Abstract

The invention discloses a trackless electric telescopic door with a paralleled guiding device, which comprises a door head, a doorframe, road wheels arranged on the lower part of the door head and the doorframe, wherein the doorframe consists of a plurality of door sets, the invention is characterized in that: the doorframe is provided with at least two guiding devices, the guiding devices are inparallel and arranged in displacement; the doorframe maintains in the accurate linear running state through unfolding or folding the guiding devices. The invention changes the defects of the prior trackless telescopic doors, the door body moves and position accurately and the stability is high when the telescopic door overlaps or unfolds, the trackless electric telescopic door has the advantages of convenient assembly and maintenance, increasing the number of paralleled symmetrical guiding devices properly and greatly improving the rate of the compression.

Description

technical field [0001] The invention relates to an automatic door, in particular to a trackless electric telescopic door with a parallel guiding device. Background technique [0002] At present, because the automatic door series products have the characteristics of beauty, exquisiteness and convenient opening and closing, they have been widely used in the courtyard doors of government agencies, colleges, factories and residential quarters, etc., and with the rapid development of social and economic construction, other The market demand is increasing. To sum up, there are many kinds of automatic doors today, but they can be roughly divided into two categories, one is the track electric telescopic door with tracks laid on the ground, and the other is the trackless electric telescopic door with guide devices. Among them, the trackless electric telescopic door is more and more popular among consumers because it does not need to lay tracks on the ground. [0003] Regarding the ...

AI Technical Summary

Problems solved by technology

This invention has the following defects: the lack of compression ratio of the door body, poor stability caused by a guide strip, deformation of the door body during operation, ineffectiveness of one guide strip when going out, poor guiding performance when shrinking, and poor wind resistance; Patent "telescopic door" (patent application number 200710133939.5), the working principle of this invention is that the telescopic movement of the door frame is guided by the mother-child slide rail device, which includes at least one mating mother part, It is used to guide and accommodate the embedded sub-parts, and at least one inserted sub-part, through the movement of the inserted sub-parts in the length direction of the mating mother part, the parts of the female and sub-parts are slidably embedded together, so that the door frame is maintained at the correct position. Straight running state

This invention has the following defects: the structure of the mother-child slide rail device is complex, and the production process requirements are relatively high. The mother-child slide rail device is installed at the lower part of the door frame, and the assembly and laying requirements are high, and the maintenance cost is high.

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