Control handle for hand hydraulic carrier

Abstract

The invention discloses a control handle for a hand hydraulic carrier. The control handle for the hand hydraulic carrier comprises a rod body and an annular handle connected to the rod body. A pinching handle is installed on the rod body and connected with a hydraulic lifting device of the hand hydraulic carrier through a transmission element. The rod body is connected with a pump body of the hydraulic lifting device through a pin shaft. The rod body is composed of a press rod part and a swing part which are movably connected. Lug plates on the two sides of the press rod part are connected with the pump body through pin shafts. The swing part is provided with a swing rod body and a sector block fixedly connected with the lower end of the swing rod body into a whole. A driving piece and a driven piece of a cam mechanism are composed of the sector block and a pump core of the pump body. In the cam mechanism, the sector block swings leftwards and rightwards, and the corresponding pump core moves downwards to supply oil or moves upwards to absorb oil. By the adoption of the control handle, carrier lifting time is shortened and meanwhile the operation range is reduced.

Description

technical field [0001] The invention relates to a manual transport vehicle, in particular to a manual hydraulic transport vehicle. Background technique [0002] As a lifting and handling tool, manual pallet trucks are widely used in factory workshops, warehouses and logistics. A manual hydraulic pallet truck is commonly used in the existing manual pallet trucks. The frame of this manual hydraulic pallet truck contains There is a load platform in the form of a set of forks, so it is generally called a manual pallet truck. The structure of this truck also includes a control handle, a powered oil pump and its actuator hydraulic cylinder, and the upper end of the piston rod of the hydraulic cylinder supports the rise and fall of the pallet fork. As the hydraulic power system of the pallet truck, the oil pump and hydraulic cylinder are the most critical components of the manual hydraulic pallet truck, while the joystick is used as the control operating element, which serves as t...

AI Technical Summary

Problems solved by technology

During use, even if the weight of the lifting cargo is light or not heavy enough, it is still necessary to press the handle repeatedly to make the hydraulic oil continuously enter the rodless chamber of the hydraulic cylinder from the oil pump, and push the piston rod of the hydraulic cylinder to move upwards. Therefore, the lifting of the existing manual hydraulic trucks is relatively slow. In order to improve the loading and unloading efficiency, the average lifting speed of the existing manual hydraulic trucks should be increased, that is, the lifting time of the existing manual hydraulic trucks should be shortened.

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