Oil pressure ankle joint

Abstract

The invention provides an oil pressure ankle joint. The oil pressure ankle joint comprises an ankle hydraulic cylinder, wherein the ankle hydraulic cylinder comprises an oil supplementing chamber, a first pressure adjusting chamber PF, a second pressure adjusting chamber DF, and accommodating space communicating with each chamber, the accommodating space allows for pivoting of an oil pressure shaft core in match with a locating piece, set screws are matched at two sides of the oil pressure shaft core for screwing, and the ankle hydraulic cylinder is pivoted in a pivoting base and can carry out rotation swing movement relative to the pivoting base; an extending part is arranged in the middle of the oil pressure shaft core, an oil baffle block is arranged below the oil pressure shaft core, so that a front chamber and a rear chamber which communicate with each other and allow fluid to flow inside are formed through the separation by the oil pressure shaft core, meanwhile, the first pressure adjusting chamber PF and the second pressure adjusting chamber DF can be used for correspondingly adjusting the pressure of fluid in the front chamber and the rear chamber, so that the impact force born by a user during walking is effectively alleviated, the walking posture is natural and easy, in addition, the oil supplementing chamber can automatically supplement fluid by utilizing the differences of oil pressure, and thus the maintenance times of the user can be reduced.

Description

technical field [0001] The present invention is a kind of hydraulic ankle joint, through which the shaft center of the hydraulic pressure is rotated to match the channel, so that the pressure can be adjusted according to the user's walking speed, so that the impact force when landing on the ground can be effectively slowed down, and the walking posture is more relaxed and natural. Background technique [0002] With the advancement of medicine in medical practice and technology, the design of prosthetic joints also ranges from the application of basic cushioning materials to the combined use of air pressure and oil pressure through structural improvement to improve shock absorption and natural movement. However, there is still much room for improvement in current applications. [0003] The commonly used knee joint mainly uses a variety of connecting rod structures to allow users to more realistically simulate the normal knee movement. However, most of the other components con...

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned ankle joint decompression adjustment mechanism has relatively complex internal components, which is not easy for subsequent maintenance and overhaul. When used in a magnetic environment, whether it will interfere with the design of the magnetic valve port has safety concerns; and When the internal hydraulic fluid stock is not enough for lubrication, it needs to be replenished through the oil hole, which is not very convenient in actual use

Therefore, the problems of complex structure and inconvenient use need to be improved urgently

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