One-hand pushable screw hoist

Abstract

The invention relates to the technical field of water conservancy engineering, in particular to a one-hand pushable screw hoist, which includes a working chamber, which is fixedly connected to a worm chamber, which is provided with a worm and a worm wheel, and the worm wheel meshes with a moving gear, and the working chamber is fixedly connected The first nut, the first nut is threaded to the screw rod, the screw rod is fixedly connected to the round edge handwheel, the working chamber is provided with the second nut, the second nut is threaded to the screw rod, the second nut transition fits the thrust bearing, and the thrust bearing is fixedly connected to the round pipe The second nut is provided with a spline, the spline is slidably matched with the moving gear, the round tube seat is provided with an elastic piece, and a universal ball is arranged above the elastic piece, the upper end surface of the moving gear is in contact with the pressure ring, and the working compartment is equipped with a manual Press down device. The beneficial effect is that the intermediate gear of the present invention can be separated from the worm gear, avoiding driving the motor to rotate when the hoist is manually driven, saving a lot of driving force, and being beneficial to manually driving the hoist with one hand.

Description

technical field [0001] The invention relates to the technical field of water conservancy engineering, in particular to a one-hand pushable screw hoist. Background technique [0002] The screw hoist, also known as the screw hoist, is a machine that connects the door leaf of the gate directly or through a guide slider and a connecting rod with a threaded 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 are widely used in engineering projects such as reservoir irrigation area river dams and hydroelectric power stations. [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 carry out work, when there is a power outage, you can only work through the hand-operated type. Due to the occasi...

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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