Movable manual elevator

Abstract

The invention provides a movable manual hoister which comprises a rack, a linear guide pair, a hoisting frame, a hoisting assembly and an outward swinging supporting assembly, the hoisting frame is installed on the rack through the linear guide pair, the hoisting assembly comprises a linear guide groove, balancing weights, a winding wheel, a rope and a self-locking rotating assembly, at least one balancing weight is arranged in the linear guide groove in a matched mode, and the self-locking rotating assembly is arranged in the linear guide groove in a matched mode. A limiting assembly is arranged between the balancing weight and the linear guide groove, one end of the rope is connected with the balancing weight located on the lowermost side in the linear guide groove, the other end of the rope is connected with the lifting frame, the rope crosses the winding wheel, and the self-locking rotating assembly is in power connection with the winding wheel and used for actively driving the winding wheel to rotate. The assembling block is arranged in the linear guide groove, so that the balancing weight can be pushed to ascend when the lifting frame is used for lifting the overhead load, the position of the balancing weight is locked, the situation that the balancing weight pulls the lifting frame to be located at the top end of the rack when the lifting frame is used for lifting the overhead load is avoided, and goods can be forked conveniently.

Description

technical field [0001] The invention relates to the technical field of manual hoists, in particular to a mobile manual hoist. Background technique [0002] Publication No. CN111021314A provides a water conservancy and hydropower gate lifting device. In the prior art, the self-gravity of the hydropower gate is offset by the setting of the counterweight block, so that a large force does not need to be applied to lift the hydropower gate. [0003] Publication number CN105352319B provides a hand-cranked feeding system for an aluminum ingot melting furnace. This prior art is the same as the prior art described above, and also uses a configuration block to offset the gravity of the load. [0004] The publication number CN111021314A uses a fixed load, so it is not necessary to consider the working scene after the load is unloaded, while the publication number CN105352319B is the same as the application scenario of this application. When the load is unloaded, the gravity of the coun...

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Problems solved by technology

[0004] Publication No. CN111021314A is used to fix the load, so there is no need to consider the working scene after the load is unloaded, while the publication No. CN105352319B is the same as the application scene of this application. When the load is unloaded, the gravity of the counterweight is greater than that of the hopper , then the hopper will be pulled to a high place and cannot fall back, so it is necessary to remove the counterweight to ensure that the hopper falls back, and when the hopper is reloaded with a load, it is necessary to ensure that the hopper is at a low position, otherwise the setting of the lifting device is meaningless, so the public The prior art No. CN105352319B is inconvenient to load goods when in use

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