Patent ID: 8720006
Filing Date: 2014-05-13
Classification: A45C,Y10T

Abstract:
1. A retractable pulling rod comprising: a pulling rod set, provided with a first socket, a second socket, and at least a third socket, sleeved onto each other through their ends of small diameters, and each is provided with at least a positioning hole; a plug set, provided with a first plug and a second plug, disposed respectively at bottom ends of said first socket and said second socket, said first plug and said second plug are each provided respectively with at least a connection piece and at least a steel bead; and an elastic extension device, comprising: a base, provided with an indention portion, and on which is provided with an installation portion having a through-hole; a spring, sleeved around said installation portion of said base; and a pushing piece, provided with a press portion on an upper end and a rod body on a lower end, one end of said rod body is received in said through-hole, and is also located in said spring, so that said press portion brings said rod body to move in said through-hole, said spring is compressed or restored according to actions of said pushing piece; said elastic extension device is disposed in said second socket, and is located above said second plug, a press rod is used to control said first plug to connect to said elastic extension device and said second plug, so that said first plug is pressed against the pushing piece of said elastic extension device; said rod body of said elastic extension device moves from within said through-hole to outside, thus pressing down said connection piece of said second plug, to bring said steel bead to position on said positioning hole, or to detach from said positioning hole, so as to make said retractable pulling rod extend or retract.