Detachable telescopic downlight

1 . A detachable telescopic downlight, comprising a downlight body and a telescopic fixing structure, wherein:

the downlight body includes a lamp panel and a lamp holder;

wherein a top of the lamp panel is provided with a slot, and a bottom of the telescopic fixing structure is detachably connected to the slot;

wherein the lamp holder is detachably mounted on a top end of the telescopic fixing structure;

wherein a limiting block is provided on the top of the lamp panel;

wherein a slide buckle is provided on the bottom of the telescopic fixing structure, and the slide buckle is configured to be inserted into an entrance of the slot and to move in the slot along a first horizontal direction;

when the telescopic fixing structure slides into a slot bottom plate, the telescopic fixing structure is locked to the limiting block to prevent the telescopic fixing structure from moving out of the slot in a direction opposite to the first horizontal direction.

2 . The downlight according to claim 1 , wherein the telescopic fixing structure comprises a first telescopic rod, a second telescopic rod, a bottom plate, a tension spring, and a torsion spring;

wherein the second telescopic rod is a hollow structure, and a sidewall of the second telescopic rod forms a guide slide slot;

wherein the first telescopic rod is slidably sleeved in the second telescopic rod along the guide slide slot;

wherein the bottom plate is integrally or detachably disposed on a bottom of the second telescopic rod;

wherein a first end of the tension spring is fixed to the first telescopic rod, and a second end of the tension spring is fixed to the bottom plate;

wherein a first spring arm of the torsion spring is fixedly disposed on an inner sidewall of the second telescopic rod, and a second spring arm of the torsion spring is slidably disposed on a guide rail structure in the first telescopic rod.

3 . The downlight according to claim 2 , wherein the guide rail structure is provided on an inner wall of the first telescopic rod;

wherein the guide rail structure includes a guide rail slot and the second spring arm, and the guide rail slot includes a vertical guide slot and a locking slot connected to the vertical guide slot;

wherein the locking slot includes at least one locking position;

wherein the second spring arm can enter the locking position under the action of an external force and remain in the locking position after the external force is removed to adjust an overall height of the telescopic fixing structure.

4 . The downlight according to claim 3 , wherein the guide rail structure further includes a bifurcation step;

wherein the bifurcation step is disposed at a connection between the guide slot and the locking slot to allow the torsion spring to slide along the guide rail slot.

5 . The downlight according to claim 2 , wherein a first notch is provided on sidewalls of the first telescopic rod and the second telescopic rod in a vertical direction, so that horizontal cross sections of the sidewalls are C-shaped;

wherein a bottom platform of the second telescopic rod has a trapezoidal shape.

6 . The downlight according to claim 5 , wherein:

a second notch is provided on the trapezoidal bottom platform, and the second notch of the second telescopic rod is connected to the first notch for the passage of electric wires.

7 . The downlight according to claim 1 , wherein a first toothed structure and a first buckle are provided on an inner sidewall of a top of the telescopic fixing structure;

wherein the first toothed structure and the first buckle are respectively connected to a second toothed structure and a second buckle on an outer edge of the lamp holder.

8 . The downlight according to claim 1 , wherein a threaded structure is disposed on the top of the telescopic fixing structure to ensure that the lamp holder can be screwed into the telescopic fixing structure.