shooting position, comprising a majority of support rods and a clamping section provided for at the top of the support bar (13),characterized by the fact that the individual support rods are identical in structure and each of them consists of several rod bodies (4) with different diameters, with an external locking device (5) attached to a connecting point adjacent to the rod bodies (4), with the exterior locking device (5) a fixing housing (51),a positioning pin (52),includes a clamping plate (53) and a press piece (54), with the fixing housing (51) firmly mounted at the lower end of the bar body (4), with a lead stage (511) at the upper and lower end of the fixing housing (51) moulded outwards in one part, where a mounting hole (512) is provided in the middle section of the lead stage (511), the positioning pin (52) is inserted in the mounting hole (512), the fixing hole (51) is fitted with a striped hole (513) between the lead stages (511), where the strip-shaped hole (513) has a straight press piece (54),where the rod body (4) is equipped with a limiting passage hole corresponding to the pressure piece (54), with the insert plate (53) comprising a crooked surface section (531) with variable diameters and a handle section (532), where the crooked surface section (531) with variable diameters is fixed to a central section of the positioning pin (52), the nearer the outer wall of the crooked surface section (531) with variable diameters facing the fixing hole (51) is to the handle section (532),the nearer the distance to the press piece (54);where at an inner wall the fixing sleeve (51) is partially formed a twist-securing head (514), where at an outer wall of the rod body (4) is formed one-piece with a twist-securing nut (45) that matches the twist-securing head (514).
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