Throttling speed limiting device for hydraulic hoist

The utility model relates to a throttling speed limiting device for a hydraulic hoist, which comprises two pipelines, a first flange, a second flange and a first throttling plate, the first throttling plate is provided with a first throttling hole, and the two pipelines are respectively and fixedly connected with the first flange and the second flange. The first flange and the second flange are detachably connected through bolts, an adjusting mechanism and a sealing mechanism are arranged between the first flange and the second flange, and the adjusting mechanism comprises a second throttling plate, a rotating disc and a connecting rod. By arranging the adjusting mechanism, the sectional area through which liquid can pass can be adjusted without detaching the first throttling plate, and the first throttling hole and the second throttling hole slowly deviate from the aligned state by rotating the second throttling plate, so that the liquid can pass through the first throttling hole and the second throttling ho