Oil painting stick protective sleeve

Abstract

The invention discloses an oil painting stick protective sleeve which comprises a protective cylinder body. A main cylinder body is slidably installed in the protective cylinder body, a fixed ring is fixedly installed at the top end of the main cylinder body, a fixed frame is fixedly installed in the fixed ring, the top end of the fixed frame is rotationally connected with a rotary disc through a shaft, the fixed frame is composed of three fixed rods which form 120-degree included angles with one another, adjusting grooves are formed in the fixed rods, and sliding blocks are slidably mounted in the adjusting grooves. Three arc-shaped grooves are formed in the side, close to the fixed frame, of the rotary disc, the arc-shaped grooves are evenly distributed in the rotary disc, one ends of the arc-shaped grooves intersect at one point, and the point coincides with the circle center of the rotary disc. The oil painting stick protective sleeve is simple and reasonable in structure, novel in design, easy and fast to install, high in applicability and capable of achieving isolation protection on an oil painting stick, meanwhile, a user can be effectively prevented from making direct contact with an oil painting stick body, and use convenience of the oil painting stick is improved.

Description

technical field [0001] The invention relates to an oil painting tool, in particular to a protective cover for an oil painting stick. Background technique [0002] Oil pastel is a kind of oil-based color painting tool, which is generally cylindrical or prismatic about 10 cm long. The oil pastel feels fine and smooth, has good spreadability, and has excellent color stacking and color mixing performance. The most prominent ultra-fine thickened coating material makes the coating more textured, and the coating weight is 0.002g / cm2. It can fully display the effect of oil painting and meet the difficulty requirements of various painting skills. The ultra-low temperature ammonia freezing makes the pressure density higher and the molecular structure of the rod body tighter. The weight of a single rod is about 8.5g. The breaking resistance is not less than 4N, and it is not easy to break and wear. Oil pastels look like crayons, but they are not. Compared with crayons, oil pastels...

AI Technical Summary

Problems solved by technology

Oil pastels were introduced into China. Due to their convenience and outstanding performance, oil pastels have become the main material for children's painting. However, there are many types of oil pastels on the market, and the quality varies, which brings a lot of inconvenience to consumers.

With the continuous expansion of demand, the production of similar products is increasing day by day. Some of the inferior products can be recognized at a glance from the rough appearance, while others have a fair color when used, and it is difficult to distinguish good from bad from the appearance. In fact, inferior products are the biggest harm. It is harmful substances exceeding the standard. Experiments have proved that oil pastels and roll paper contain arsenic (As), barium (Ba), lead (Pb), mercury (Hg) and other elements. If the above substances exceed the standard, children will cause chronic poisoned

[0004] At present, the cheaper oil pastels generally only have a circle of paper around the oil pastels. This kind of oil pastels is not only cheap, but also more economical than oil pastels with shells and tubes. Contact with the oil pastel will cause the oil pastel to dirty hands, and it will easily cause the oil pastel to break during use

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