According to another specific description of the present invention, a cosmetic brush
device should have a first cylindrical member and a second cylindrical member with openings at both ends. This second cylindrical piece can be slidably inserted into the lower part of the first cylindrical piece. The makeup brush device further includes: an adjustable length piece. The adjustable-length piece includes: a support plate fixed on the inner bottom of the second cylindrical piece and several cylindrical sector blocks extending upward from the support plate. And this adjustable length piece can be extended or shortened. The end of the innermost segment is threaded and a gap is formed between the upper part of the outermost segment and the upper surface of the innermost segment; a gear shaft structure. This structure includes a cylindrical shell piece slidably placed in the first cylindrical piece and a base plate connected with the bottom of the cylindrical shell. A cylindrical boss with a through hole. The segment of the adjustable length piece can pass through this hole. Above the inner side of the cylindrical casing, there are many inner connecting grooves spaced apart from each other by a certain length. Between the base plate and these inner bosses, there is a circular piece supported by the first elastic piece; a hollow gear assembly that is slidably inserted into the gear coupling structure. Below this gear assembly, there is a hole in the cylindrical mounting part. The first gear piece is connected to the bottom of the mounting part on its outer surface, and there are many first outward bosses. Below the first gear member, there is a movable second gear member and on its outer surface there are many second outward convex bosses. The second outward boss can be selectively disconnected or connected with the connecting groove of the boss on the inner side of the gear coupling structure. There are corresponding gears on the first gear element and the second gear element; a brush installed on the mounting part of the gear assembly. This brush should be a brush fixed on the lower connecting part by a binder. There is a hole in the center of the connecting part, a penetrating part including an extension part, which can pass through the hole of the connecting part, and a connecting part is installed in the connecting part. There is an opening above the extension. In the center of the lower side of the circular plate, there is a groove that can be exposed through the mounting hole. This circular disc is connected with the end of the innermost sector block with screws. In the center of the lower side of the circular disc, there is an outward boss adjacent to the groove and extending downward. This boss protrudes outward to insert into the gap above the outermost sector; a brush protection cover. In this protective cover, the upper part of the first cylindrical part can be slid and inserted. This protective cover has a pressure boss in the downward extending direction. There is a smaller diameter under the pressure boss: in this protective cover, when the upper part of the first cylindrical part is covered by the protective cover, the end of the pressure boss is inserted and connected with the opening of the connecting piece , The outward boss that can be exposed through the hole on the mounting part is inserted into the gap at the upper end of the outermost sector block. The second outward boss of the second gear element is positioned between the inner boss after being separated from the connecting groove under the inner boss of the cylindrical housing. According to another detailed description of the present invention, a cosmetic brush
device should include a brush with a connecting part. This brush has a through hole in the lower center of the connecting part. The brush can be inserted into the first cylindrical part. The second cylindrical member can be slidably inserted into the first cylindrical member. The second cylindrical member can be slidably inserted into the upper part of the first cylindrical member. The cosmetic brush device characterized by this further includes: an adjustable-length member with a support plate installed below the inner side of the second cylindrical member. The outermost sector part of the cylindrical shape of the adjustable length member extends upward over a certain length. There are several cylindrical inserts into the hollow part of the outermost sector, and each has a different diameter. When the adjustable-length piece is shortened, a gap is formed between the circumference above the innermost side of the outer sector and the circumference above the outermost side of the inner sector. In this structure, there is an upward extension on the circular disk of the brush support structure. The extension piece passes through the hole in the center of the connecting part and has a connecting groove at its upper end. There is a pressure boss on the inside of the protective cover. This pressure boss can closely fit with the connecting groove of the extension part. When the upper part of the first cylindrical body is covered by the protective cover and the adjustable length member is shortened to its shortest length, the pressure boss on the protective cover becomes tightly fitted with the connecting groove, and the brush support structure is convex outward The platform will also closely match the gap above the outermost sector block.
Dongguan MHLAN makeup tool co.，ltd shows how effective market design can encourage participation, reduce gaming, and aggregate information, in order to improve liquidity, efficiency, and equity in markets.
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