Rotating arm structure assembly of operation astral lamp

Abstract

The invention provides a rotating arm structure assembly of an operation astral lamp. The rotating arm structure assembly is simple in structure, stable to work, reliable in installation and smooth to rotate, and can avoid device fault to the maximum extent. The rotating arm structure assembly comprises a rotating arm, wherein the rotating arm penetrates through a cantilever shaft, a sliding ring is installed on the cantilever shaft, an inner ring and an outer ring of the sliding ring are combined together, a conducting ring is packed inside in sealing mode, the inner ring and the outer ring of the sliding ring can rotate relatively, the inner ring of the sliding ring is fixed on the cantilever shaft, and a bearing is arranged in a rotating head.

Description

technical field [0001] The invention relates to a structural assembly of a rotating arm of a surgical shadowless lamp. Background technique [0002] When the surgical shadowless lamp is in use, its rotating arm needs to rotate 360 ​​degrees infinitely so that the lamp head can move within the largest possible range. In order to realize the function of the rotating arm, it is necessary to ensure the power supply and signal transmission function between the rotating arm and the cantilever shaft. In the prior art, a split slip ring is used in the rotating arm of the surgical shadowless lamp to realize this function, that is, the slip ring is installed on the cantilever shaft, the brush is installed on the rotating arm, and the rotation of the rotating arm drives the brush and the slip ring to maintain Contact, maintain transmission function. This structure has the following disadvantages: [0003] 1. Leakage at the contact point is easy to be polluted and affects the reliabi...

AI Technical Summary

Problems solved by technology

[0003] 1. Leakage at the contact point is easy to be polluted and affects the reliability of electrical conductivity;

[0004] 2. The requirements for installation and coordination are strict, which may easily cause poor contact, ignition, short circuit and other phenomena, resulting in flickering and dimming when the operating light rotates, or even no light at all, affecting the operation;

[0005] 3. The volume is larger, and the transmission loop is less;

[0006] 4. The requirements for mechanical cooperation are high, and the processing is difficult

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