Universally-adjustable lighting device

Abstract

The invention provides a universally-adjustable lighting device which comprises a pressing piece, a rotating piece, a light source module, a lamp holder and a back cover, wherein the pressing piece is connected in the light emitting direction of the lamp holder in a matched mode, a clamping ring of the pressing piece and a first inner ring of the lamp holder are combined to form a sliding rail, the rotating piece is universally connected with the sliding rail through an adjusting ring of the rotating piece, and the rotating piece is prevented from being separated from the sliding rail through the pressing piece; the rotating piece is connected with the back cover, so that the bearing unit of the rotating piece and the containing unit of the back cover are combined to form a light source containing cavity to bear a light source module; and the adjusting ring is in interference fit with the clamping ring, so that the adjusting ring and the sliding rail are made to generate two different friction forces at the positions of the first inner ring and the clamping ring so as to form stress homology with the weight borne by the rotating piece. Therefore, dismounting and maintenance from the front portion of the lamp are facilitated, one-time adjusting precision is guaranteed, and hand feeling experience during adjusting is improved; and compared with the prior art, parts are further reduced, and meanwhile structural reliability is improved.

Description

technical field [0001] The invention relates to the field of lighting technology, in particular to a lighting device in which a light source module has a universal adjustment structure to adjust the irradiation angle of light. Background technique [0002] Due to structural limitations, the beam angle of most of the existing ceiling spotlights on the market can only be adjusted in one direction or in both directions, which limits the user's requirements for adjusting the beam angle. [0003] For this reason, the prior art once proposed a universal downlight (Chinese patent application number 202020102086.X), which includes: a lamp body rotating assembly and a lamp stand assembly, the lamp body rotating assembly includes a light source and a rotating ring, the light source and the rotating The ring is fixedly connected, and the rotating ring has an outer spherical arc surface; the light frame assembly includes a light frame and a pressure ring, and the pressure ring is movabl...

AI Technical Summary

Problems solved by technology

[0007] However, a problem is that, based on this snapping structure, the prior art is designed so that there is a broken groove between the pressure ring and the inner ring of the lamp holder, and the existence of the broken groove will reduce the contact between the rotating ring and the inner ring of the lamp holder. The friction of the ring and the pressure ring makes the rotating ring too loose when rotating, which will cause an eccentric feeling (similar to top-heavy) with the weight of the components connected to the rotating ring, making the adjustment experience not good

[0008] At the same time, the vertical movement structure when the upper and lower bites sometimes drives the rotating ring to deviate, that is to say, when the rotating ring is turned to a certain angle and stops, the pressing ring will easily drive the rotating ring to produce a certain deviation during the process of pressing down and engaging. shift, thus affecting the accuracy of one adjustment of the rotating ring

[0009] In addition, in order to realize the function of fixing the adjustment angle, the prior art adopts too many structural parts, which needs to increase the cost

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