Automatic tent frame

摘要

The present invention relates to an automatic tent frame capable of preventing an upper coupler and a lower coupler from being rotated with respect to each other or preventing given gaps from being generated on the coupled portions of the upper coupler and the lower coupler even in a case where an automatic tent is not unfolded to its original shape by the reduction of the restoring force of an extension spring and thus falls down due to external impacts like wind, thus preventing support poles supporting main poles from being damaged to extend the life span of the automatic tent frame, and capable of reducing the length of a pipe module, while allowing the pipe module to have the same functions as in conventional one, thus upwardly lifting an outer surface of the automatic tent by the reduced length to increase the interior of the automatic tent by a maximum height.

主权项

1. An automatic tent frame comprising:
a pipe module 100 having a small diameter pipe 110 and a large diameter pipe 120 having different diameters from each other, the small diameter pipe 110 being insertedly fitted to the large diameter pipe 120 in such a manner as to be slidingly moved therein; an upper coupler 200 having a small diameter pipe coupling groove 220 formed at the center of the underside thereof in such a manner as to be located on top of the pipe module 100 and coupled to the upper end periphery of the small diameter pipe 110 by means of a first fastening member (p); a lower coupler 300 having a large diameter pipe coupling groove 340 formed at the center of the top thereof and a through hole 330 formed at the center of the underside thereof in such a manner as to be located on the underside of the pipe module 100 and coupled to the lower end periphery of the large diameter pipe 120 by means of a second fastening member (p); an extension spring 400 having an upper coupling end 410 and a lower coupling end 420 on which fastening holes 411 and 421 are formed, an extension piece 423 exposed to the outside through the through hole 330 of the lower coupler 300 in such a manner as to be pulled by a given length when the extension spring 400 is fixed, the upper end periphery of the extension spring 400 being insertedly fitted to the pipe module 100 in such a manner as to be fixed to the small diameter pipe 110 by means of the first fastening member (p) passed through the upper coupler 200 and the small diameter pipe 110 to which the upper coupler 200 is fixed and inserted into the fastening hole 411 of the upper coupling end 410, and the lower end periphery of the extension spring 400 being insertedly fitted to the pipe module 100 in such a manner as to be fixed to the large diameter pipe 120 by means of the second fastening member (p) passed through the lower coupler 300 and the large diameter pipe 120 to which the lower coupler 300 is fixed and inserted into the fastening hole 421 of the lower coupling end 420; a plurality of main poles 500 hinge-coupled to the upper coupler 200; and a plurality of support poles 600 each having one end hinge-coupled to the main pole 500 and the other end hinge-coupled to the lower coupler 300, wherein the small diameter pipe 110 is open on the top and bottom thereof and has coupling holes 111 formed facingly on the upper periphery thereof and long slots (h) formed facingly on the lower end periphery thereof in a perpendicular direction to the coupling holes 111.