Disclose the inhalator by sucking conveying medicament. The inhalator includes distributor gear, which is configured to actuating time-division medicine dosage. The inhalator further includes dose counter mechanism comprising counter and translation building block. Translation building block includes pawl. Counter includes the first counter wheel, the second counter wheel and the breast wheel for cooperating with the second counter wheel and selectively cooperating with the first counter wheel. When inhalator is triggered to distribute drug dose, motion-transforming member on the direction of distributor gear this Shang of Ji Line. Therefore, pawl rotates the first counter wheel, and as the first counter wheel rotates, breast wheel selectively cooperates, therefore rotates the second counter wheel selectively to count the dosage of inhalator.公開了通過吸入輸送藥劑的吸入器。該吸入器包括分配機構，該分配機構構造為在促動時分配藥物劑量。該吸入器還包括劑量計數機構，其包括計數器和轉換構件。轉換構件包括棘爪。計數器包括第一計數輪、第二計數輪和與第二計數輪配合且選擇性地與第一計數輪配合的中間輪。當吸入器觸發以分配藥物劑量時，分配機構在基本上綫性的方向上運動轉換構件。因此，棘爪旋轉第一計數輪，並且隨著第一計數輪旋轉，中間輪選擇性地配合，因此選擇性地旋轉第二計數輪以計數吸入器的劑量。
