| CPC F21S 6/001 (2013.01) [F21S 9/02 (2013.01); F21V 23/04 (2013.01); F21Y 2115/10 (2016.08)] | 11 Claims |

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1. A switching device, comprising a battery compartment, a lamp bead and a switch, wherein the battery compartment is provided with a hollow barrel-shaped assembly for accommodating a battery, and the lamp bead is provided on a lamp holder of the hollow barrel-shaped assembly, the switch is provided with a hook, a hole is provided on a base plate of the battery compartment and the hook is used for user to operate, the lamp bead is electrically connected with the battery through the switch to control the on/off of light circuit, and the switch is assembled beside the battery compartment through several positioning columns formed on the base plate of the battery compartment, the hook extends from the positioning columns through the hole so as to be exposed;
wherein the battery compartment comprises a battery cover and a housing, the side wall of the housing is provided with two locking grooves, the battery cover is provided with a pair of extensions for cooperating with the locking grooves, at least one of the locking grooves comprises an arc groove and a limit slot joined with the arc groove, and at least one edge of the arc groove gradually elevates in the direction away from the base plate of the battery compartment, there is a height difference between the end of the gradually elevated edge and the bottom edge of the limit slot so as to lock the battery cover.
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