Electric throttle-valve adjusting device for small hydraulic damping cylinder

A technology of hydraulic damping and electric adjustment, which is applied in the direction of valve devices, sliding valves, engine components, etc., and can solve problems such as small throttling range, poor expansion and contraction stability of small hydraulic damping cylinder piston rod, and inaccurate flow control.

Pending Publication Date: 2021-08-31
国家康复辅具研究中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • Electric throttle-valve adjusting device for small hydraulic damping cylinder
  • Electric throttle-valve adjusting device for small hydraulic damping cylinder
  • Electric throttle-valve adjusting device for small hydraulic damping cylinder

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Embodiment Construction

[0018] In order to make those skilled in the art understand the core idea of ​​the present invention more clearly, it will be described in detail below with reference to the accompanying drawings.

[0019] Such as Figure 1-4 As shown, the present invention discloses an electric regulating flow valve device for a small hydraulic damping cylinder, which device includes:

[0020] Motor connection sleeve 1, connecting rod 2, transmission pin 3, connection sleeve 4, limit pin 5, throttle valve core 6, housing 7, end cover 8, O-ring 9, limit sleeve 10, connection seat 11 , support sleeve 12, throttle valve sleeve 13, positioning pin 14, oil inlet 15 and oil outlet 16; motor connecting sleeve 1 is connected to connecting rod 2 through screws, and motor connecting sleeve 1 and connecting rod 2 are connected through end cover 8 and The connecting seat 11 performs radial positioning, and performs lateral positioning through a limit sleeve; the end cover 8 is threadedly connected to th...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/34F16K3/26F16K3/314
CPCF16F9/34F16K3/265F16K3/262F16K3/314
Inventor 张秀峰徐建光张宁
Owner 国家康复辅具研究中心
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