Single-hand-pushable double-hanging screw hoist

Abstract

The invention relates to the technical field of a water conservancy project, in particular to a single-hand-pushable double-hanging screw hoist. The single-hand-pushable double-hanging screw hoist comprises a work cabin, wherein the work cabin is fixedly connected with a worm rod cabin; the worm rod cabin is provided with a worm rod and a worm wheel; the worm wheel is engaged with a moving gear; the work cabin is fixedly connected with a first screw nut; the first screw nut is connected with a screw rod through screw threads; the screw rod is fixedly connected with a circular edge handwheel; the work cabin is provided with a second screw nut; the second screw nut is connected with the screw rod through screw threads and is in transition fit with thrust bearings; each thrust bearing is fixedly connected with a round pipe seat; the second screw nut is provided with a spline; the spline glidingly cooperates with the moving gear; each round pipe seat is provided with an elastic element; auniversal ball is arranged above the elastic element; the upper end surface of the moving gear is in abutting joint with a pressing ring; and a manual downward pressing device is arranged in the workcabin. The single-hand-pushable double-hanging screw hoist has the beneficial effects that the moving gear can be separated from the worm wheel; the motor rotation caused by manually driving the hoistis avoided; a great amount of pushing force is saved; and the operation of manually driving the hoist by a single hand is facilitated.

Description

Technical field [0001] The invention relates to the technical field of water conservancy engineering, in particular to a single-hand pushable double-lift screw hoist. Background technique [0002] The screw hoist, also known as the screw hoist, is a machine that uses a threaded rod to connect to the gate leaf directly or through a guide slider and a connecting rod, and the screw moves up and down to open and close the gate. With the extensive development of water conservancy and hydropower projects, hoists and gates used in river dams and hydropower stations in reservoir irrigation areas have been widely used. [0003] At present, the hand-operated screw hoist is used in the opening of the gate, which requires a lot of manpower to operate it, but the work efficiency is low. Therefore, people use electric hoist to work, driven by the electric motor. When the power is cut off, the work can only be carried out by the hand-cranked type. The phenomenon of accidental occurrence of power...

AI Technical Summary

Problems solved by technology

[0003] At present, the hand-operated screw hoist is used in the opening of the gate, which requires a lot of manpower to operate it, but the work efficiency is low, so people use the electric hoist to work, driven by the electric motor. To work, when there is a power outage, you can only work by hand, because the power failure occurs occasionally, and the hand-operated type will not be used for a long time and rust will occur.

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