Abstract: A reciprocating razor blade cartridge having fixed blade and fixed blade support, fixed blade is flexible metal sheet, fixed blade support is basin-shaped and supported by basin opening edge, all sides of fixed blade bent downwards and wrapped on outside of basin wall around fixed blade support and make top surface of fixed blade and side surface close to top surface smoothly transition, inner cutting cavity formed between fixed blade and fixed blade support, fixed blade includes hair inlet holes allow body hair enter inner cutting cavity, inner cutting cavity below fixed blade includes movable blade can reciprocate back and forth relative to fixed blade and cut off body hair, movable blade has cutting teeth for cutting body hair corresponding to hair inlet holes, reciprocating razor blade cartridge includes transmission component passes through bottom of fixed blade support to connect movable blade with power device of electric razor.

Abstract: A trimmer head for pen-shaped eyebrow trimmer, including a cylindrical trimmer head body, the trimmer head body is provided with a blade, the trimmer head and handle can form an eyebrow trimmer with a pen-shaped structure. The blade is a curved arc-shaped structure, and blade edge at the upper end is arc-shaped; by placing the upper end of blade on upper end face of trimmer head body, the trimmer head can move perpendicular to the skin or inclined at a certain angle with the direction perpendicular to the skin when shaving, combined with the inclined setting of the blade relative to axis L of the trimmer head body to form an inclined cutting angle to ensure sharpness of cutting. To improve the flexibility and controllability of eyebrow trimming, the blade with arc-shaped structure can effectively control the shaving of concave and convex parts, as to accurately trim and shape eyebrows.

Abstract: A reciprocating electric razor head includes a fixed blade and a fixed blade support for supporting and fixing the fixed blade. The fixed blade is provided with hair entrance holes for body hair to enter, and an inner side of the fixed blade is provided with a movable blade capable of moving backward and forward in a reciprocating manner relative to the fixed blade to cut off the body hair inside the hair entrance holes, such that the fixed blade obtains a very flat cutting working face contacting the movable blade without the need for additional precision machining.