Implementing Regulations of the Patent Law for the protection of Article 2.2 of the utility model patent law has been defined as follows: a utility model refers to the product's shape, structure, or a combination thereof, which is fit for practical new technology solutions. It can be said that it contains a combination of utility model product, the shape of the product, a construction product, shape structure, suited for practical use, seven new concept, and other technical solutions, wherein the product comprises two elements, first, it is a kind, second, it generates must go through a manufacturing process; refers to the shape of the product with the product, can be observed from the outside of the space defined shape, this shape can be a three-dimensional shape, and may be two-dimensional shape (e.g., cross-sectional profiles), may be fixed or may be determined to change (e.g. parachute); refers to the product structure arrangement, organization, and interrelationships of the various components of the product, can be either mechanical construction , may be a line structure, mechanical structure is the relative positional relationship between the respective mechanical parts constituting a product, the coupling relationship and the necessary mechanical mating relationship, line structure is a connection relationship determined between the respective electric components constituting the product of; fitness Utility refers to the practical aspect, i.e. this solution can be implemented, which can be reproduced by industrial methods, can be used at the same time can have a positive effect; refers to the new technical solution novelty, but also refers to the previous application, no identical invention or utility model in the domestic and publicly disclosed in publications in the country has been publicly used or otherwise known to the public, nor others in the same content first application.