The invention relates to a braking type quick-lifting jack which comprises a base, a lifting device and a braking device, and an outer shell is arranged on the base; the spiral lifting mechanism is arranged in the outer shell and comprises a rotating assembly, an abutting assembly and a locking assembly, a bearing sleeve penetrating through the outer shell is fixed to the abutting assembly, the rotating assembly is matched with the abutting assembly and can drive the bearing sleeve to move upwards, and the locking assembly can release matching between the rotating assembly and the abutting assembly and can drive the bearing sleeve to move downwards. The bearing sleeve is descended; the supporting mechanism is connected with the base and the bearing sleeve, the supporting mechanism comprises at least four sets of elastic stretching assemblies and follow-up assemblies, one ends of the elastic stretching assemblies are rotationally connected with the bearing sleeve, the other ends of the elastic stretching assemblies are connected with the follow-up assemblies, and the follow-up assemblies can move upwards when the bearing sleeve moves upwards. The end, away from the bearing sleeve, of the elastic stretching assembly is driven to move away from the outer shell, and the stability of the bearing sleeve is improved along with rising of the bearing sleeve.
本发明涉及一种制动式快升型千斤顶,包括:底座,底座上设置有外壳体;螺旋升降机构,设于外壳体内,包括旋转组件、抵接组件以及锁合组件,所述抵接组件上固定有贯穿外壳体的承重套筒,所述旋转组件与所述抵接组件配合,可驱使所述承重套筒向上运动,锁合组件可解除所述旋转组件与抵接组件之间的配合,并使所述承重套筒下降;支撑机构,连接所述底座以及承重套筒,所述支撑机构包括至少四组弹性拉伸组件以及随动组件,所述弹性拉伸的一端与所述承重套筒转动连接,另一端与所述随动组件连接,且所述随动组件可在所述承重套筒向上运动时,驱使弹性拉伸组件远离所述承重套筒的一端远离外壳体运动,实现随着承重套筒的上升,提高其自身稳定性。
Brake type quick-lifting jack
一种制动式快升型千斤顶
2022-12-09
Patent
Electronic Resource
Chinese
IPC: | B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |