Rotary connecting structure and illuminating lamp thereof

一种转动连接结构及其照明灯具

Abstract

本实用新型涉及一种转动连接结构及其照明灯具,其中,转动连接结构包括支撑杆,支撑杆上端连接有固定座,该固定座具有一管形的容纳腔,容纳腔内设置有一用于连接灯头安装座的转轴;转轴两端伸出到容纳腔外,转轴外侧壁与容纳腔内壁间隙配合;转轴伸出容纳腔外的两端上分别设置有环形凹槽,环形凹槽内卡设有卡环,卡环的外直径略大于固定座上容纳腔的横截面直径;固定座上还设置有一连通容纳腔的固定螺孔,固定螺孔内设置有一固定螺栓,固定螺栓端部顶持在转轴外侧壁上,其结构简单,能可靠地带动灯头安装座转动,改变灯头照射的仰角、俯角。
The utility model relates to a rotary connecting structure and an illuminating lamp thereof. The rotary connecting structure comprises a support rod, wherein the upper end of the support rod is connected with a fixing base; the fixing base is provided with a tubular containing cavity; the containing cavity is internally provided with a rotary shaft used for connecting a lamp cap installation base; two ends of the rotary shaft extend out of the containing cavity; the outer side wall of the rotary shaft is in clearance fit with the inner wall of the containing cavity; two ends of the rotary shaft, extending out of the containing cavity, are respectively provided with a ring-shaped groove; the ring-shaped groove is internally provided with a clamp ring; the outer diameter of the clamp ring is slightly larger than the diameter of the cross section of the holding cavity on the fixing base; the fixing base is also provided with a fixing screw hole which is communicated with the containing cavity; the fixing screw hole is internally provided with a fixing screw bolt and the top of the fixing screw bolt props against the outer side wall of the rotary shaft. The rotary connecting structure is simple, can reliably drive the lamp cap installation base to rotate, and change the elevation angle and the depression angle of lamp cap irradiation.

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