Fixing structure and lamp

A lamp, comprising:

• a power cord, comprising a clamping part and a retaining part, wherein the retaining part is disposed on the clamping part and protrudes relative to the clamping part in a circumferential direction of the power cord;
• and
• a fixing structure for fixing a power cord, wherein the fixing structure comprises:
• a cover, having a wire threading hole;
• a housing, disposed inside the cover, wherein a wire threading groove is provided on the housing at a position corresponding to the wire threading hole, and the wire threading hole and the wire threading groove are configured to allow a clamping part of the power cord to pass through;
• and
• a fixing part formed between the housing and the cover, the fixing part is configured to accommodate a retaining part of the power cord, the retaining part being disposed on the clamping part and protrudes relative to the clamping part in a circumferential direction of the power cord;
• the wire threading hole and the wire threading groove being disposed on upper and lower sides of the fixing part, and an orthographic projection of the fixing part exceeds an orthographic projection range of the wire threading hole and exceeds an orthographic projection range of the wire threading groove, so as to limit and fix the retaining part in the fixing part through the wire threading groove and the wire threading hole