Hydraulic unit, castor assembly and container moving device and method

Abstract

The invention discloses a hydraulic unit, a trundle component with the hydraulic unit, a device utilizing the trundle component to move a container and a method thereof. The hydraulic unit comprises a hydraulic mechanism, an oil tank, a foot pump, a supporting seat, an oil supply passage, an oil suction passage and an unloading oil passage, wherein the hydraulic mechanism comprises an oil cylinder and a piston arranged in the oil cylinder; the oil tank circles the oil cylinder and is used for accommodating hydraulic oil; the foot pump comprises a pump body and a pump core arranged in the pump body; the supporting seat is used for fixing the hydraulic mechanism, the oil tank and the foot pump; the oil supply passage is communicated with the pump body and the oil cylinder; the oil suction passage is communicated with the oil tank and the pump body; and the unloading oil passage is communicated with the oil cylinder and the oil tank. The hydraulic unit is provided with the foot pump, so the hydraulic unit can drive the hydraulic mechanism to work without needing external equipment in order that the hydraulic unit has a compact integral structure and convenient operation.

Description

technical field [0001] The present invention relates to a hydraulic unit, in particular to a hydraulic unit having a hydraulic mechanism comprising a cylinder and a piston which can extend downward along the axis of the cylinder, and a caster assembly having said hydraulic unit, as well as a container moving device and method. Background technique [0002] In the prior art, large mechanical equipment such as forklifts and spreaders are usually used to move containers. However, such a large-scale device itself has disadvantages such as a large volume, a large space required for work, and a limited range of movement. For containers with bottom corner fittings, there is currently a container moving device. like figure 1 As shown, this container moving device includes four lifting assemblies A. Each lifting assembly A includes a C-shaped yoke frame 3 that can cooperate with a container D, wheels 20, a hydraulic cylinder 5 arranged between the yoke frame 3 and the wheels 20, ...

AI Technical Summary

Problems solved by technology

[0003] Since the hydraulic cylinder 5 is electrically driven and needs to be connected to the power supply unit B through the cable 2, the movement of the power supply unit B must be considered when moving the container, and the operation is complicated

In addition, when moving, it is also necessary to ensure the reliable connection of the cable 2 and avoid the winding or wear of the cable 2, so there are certain potential safety hazards

In addition, although compared with large mechanical equipment such as forklifts and spreaders, figure 1 The volume of the shown device is relatively small and exquisite, yet the yoke frame 3 and the frame 7 still take up a large space

Therefore, for places where the space is relatively narrow, this container moving device is not suitable

Images