Patent ID: 6920666

Claim:
A pull rod structure comprising: a pull rod; a handle comprised of a hand grip, a first arm extending from a first end of said hand grip, a second arm extending from a second end of said hand grip, and a fastening portion extending jointly from a free end of said first arm and said second arm, said fastening portion being fastened to a top end of said pull rod; a first control mechanism located in a hollow interior of said first arm of said handle for controlling said pull rod; and a second control mechanism located in a hollow interior of said second arm of said handle for controlling said pull rod; wherein said first control mechanism comprises: a first activation button pivoted to said first end of said hand grip; a top link block located in said hollow interior of said first arm of said handle such that a top end of said top link block comes in contact with said first activation button; a bottom link block located in said hollow interior of said first arm of said handle such that a bottom end of said bottom link block comes in contact with an actuation rod located in said fastening portion of said handle whereby said bottom link block is provided with a locating slot for locating a spring serving to provide said bottom link block with a recovery force; and at least one intermediate link block located in said hollow interior of said first arm of said handle such that a top end of said intermediate link block is joined with a bottom end of said top link block, and that a bottom end of said intermediate link block is joined with a top end of said bottom link block; wherein said second control mechanism comprises: a second activation button pivoted to said second end of said hand grip; a top link block located in said hollow interior of said second arm of said handle such that a top end of said top link block comes in contact with said second activation button; a bottom link block located in said hollow interior of said second arm of said handle such that a bottom end of said bottom link block comes in contact with said actuation rod located in said fastening portion of said handle whereby said bottom link rod is provided with a locating slot for locating a spring serving to provide said bottom link block with a recovery force; and at least one intermediate link block located in said hollow interior of said second arm of said handle such that a top end of said intermediate link block is joined with a bottom end of said top link block, and that a bottom end of said intermediate link block is joined with a top end of said bottom link block.