A kind of sinker structural improvement, it includes at least an ontology, the body center has provided the perforation worn on bus, and it is equipped with block seat on one, once block seat and the connection upper and lower block seat can provide the connecting rod that counterweight combines, the upper retaining surface outer diameter of the big what of lower retaining surface outer diameter system of lower block seat what connecting rod side block seat on this. Accordingly, lead flake can be increased using the larger outer diameter of lower block mask and wind outer diameter, and then increase each sinker class interval size, effectively simplify restricted class away from quantity, and smaller outer diameter upper retaining surface and the connecting rod external diameter maintain the advantages that level of signification is away from lead flake winding tug press operation in fall range, is facilitated.一種配重座結構改良，其至少包含一本體，該本體中央貫設有穿設母線上之穿孔，且設有一上擋座、一下擋座以及一連結該上、下擋座能提供配重結合之連結桿，該下擋座位於該連結桿一側之下擋面外徑係大於該上擋座之上擋面外徑。據此，能利用下擋面具較大外徑增加鉛片捲繞外徑，進而加大各配重座級距尺寸，有效減化規格級距數量，以及較小外徑上擋面與該連結桿外徑能維持有效級距落差範圍內，方便鉛片捲繞掣壓操作等優點。
