Electric throttle-valve adjusting device for small hydraulic damping cylinder

Abstract

The invention relates to the technical field of rehabilitation assistive devices, and provides an electric throttle-valve adjusting device for a small hydraulic damping cylinder. The electric throttle-valve adjusting device is mainly applied to a high-end artificial limb joint to adjust extension and retraction of a piston rod of the hydraulic damping cylinder, during use, the electric throttle-valve adjusting device is fixed on the two sides of the small hydraulic damping cylinder, and oil flow of an oil inlet way and an oil outlet way of the hydraulic damping cylinder can be adjusted correspondingly, so that a telescopic speed of the piston rod of the damping cylinder is adjusted, and throttling flow is accurately adjusted. According to the device, a spin valve structure is adopted, hydrostatic force borne by a valve element is balanced, a rotary driver is only influenced by hydraulic force, and compared with a traditional sliding valve, needed driving force is smaller; compared with a triangular valve seam, the design of a cashew nut-shaped throttling opening has a larger damping adjusting range; and compared with a round valve hole, the through-flow characteristic of a valve hole can be controlled more accurately, the telescopic performance of the piston of the small hydraulic damping cylinder is more stable, damping can be adjusted accurately, and a good buffering effect is achieved.

Description

technical field [0001] The invention relates to the technical field of rehabilitation aids, in particular to an electric regulating flow valve device for a small hydraulic damping cylinder. Background technique [0002] With the continuous occurrence of natural disasters, traffic accidents and other irresistible disasters, the number of amputees whose limbs cannot be preserved due to serious injuries in disasters and accidents has gradually increased. In recent years, with the development of science and technology and the improvement of the quality of life of the people, some disabled people are eager to change their status quo. In order to help such people recover their mobility, enable them to reintegrate into society, and improve their self-confidence and quality of life, Introduce high-end prosthetic joints into the design of assistive devices to assist these people in recovering their motor functions. [0003] The throttle valve is an important device to adjust the spe...

AI Technical Summary

Problems solved by technology

At present, the orifice of the traditional throttle valve is generally round or triangular, which is likely to cause shortcomings such as small throttling range, inaccurate control flow, and poor telescopic stability of the piston rod of the small hydraulic damping cylinder.

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