An improved structure of a cowhide plate is mainly used to solve the problem that the counterweight is out of balance due to the accumulation of foreign matters in the plate body. Therefore, the groove on the first side of the plate body is provided with an oblique guiding surface, which is the direction to the rotation of the plate body. When there are foreign matters accumulated during weeding in the groove, the guiding surface can be turned to the foreign matters by the rotation of the plate body, so that the foreign matters can be moved along the oblique direction of the guiding surface. This work is composed by guiding the drainage ditch.一種牛筋盤的改良結構，主要在解決盤體有異物蓄積所導致配重失去平衡的問題，因此在盤體第一側的溝部設有斜向的導引面，這導引面是迎向盤體轉動的方向，而當溝部有除草時所蓄積之異物時，可由盤體轉動而讓導引面迎向異物，使異物順著導引面之斜向而被導引排出溝部，藉此構成本創作。
