454results about How to "Exquisite structure design" patented technology

The invention relates to an impacting energy absorption device based on composite pipe cutting inward-turning crushing. The impacting energy absorption device comprises an outer sleeve, a cutter and a positioning pipe. The cutter is located inside the outer sleeve, the lower end of the cutter is connected with an inner flange of the outer sleeve, and the upper end of the cutter is connected with the positioning pipe. The positioning pipe is located inside the outer sleeve and closely connected with the inner wall of the outer sleeve, and the lower surface of the positioning pipe makes contact with the cutter. The outer sleeve, the positioning pipe and a composite pipe are provided with pin holes capable of coinciding, and the outer sleeve, the positioning pipe and the composite pipe are closely combined together through pins. Compared with the prior art, the impacting energy absorption device has the advantages that the overall structure is simple, the material utilization rate is high, and the surrounding structure is not affected while the pipe strength is enhanced.

The invention discloses a multi-face magnetic attraction building block structure, magnetic attraction assemblies are built in the building block structure, and every two building blocks can be spliced in an attraction mode through one magnetic attraction assembly. Every building block is formed by assembling a seal cover and a main shell, wherein the seal cover is fixedly connected to the main shell to form an integral building block; every magnetic attraction assembly is composed of spherical type ball bearing magnets and inner cavities, wherein the inner cavities are distributed in the positions, adjacent to the seal covers, inside the main shells, and after the seal covers are fixed to the main shells, the inner cavities are encapsulated to be closed cavities. The ball bearing magnets can be built in the closed cavities in a free rotation mode. According to the scheme, the building blocks are divided into the main shells and the seal covers to be assembled, the closed inner cavities are encapsulated by the main shells through the seal covers, and the spherical type ball bearing magnets are arranged in the inner cavities, so that the magnetic attraction function that magnetic poles can be freely switched is achieved, it is guaranteed that free attraction can be achieved between the building blocks, the structural design is ingenious, connecting is stable, and machining and installing are easy to perform; according to the whole scheme, the efficiency of manufacturing the building blocks is greatly improved, manufacturing difficulty and cost are reduced, and the multi-face magnetic attraction building block structure has high practicability and market value.

The present invention provides hollow filter stick molding equipment. The hollow filter stick molding equipment is provided with a shell mold and a core mold located at the central position of the shell mold; the hollow filter stick molding equipment is further provided with a steam pipeline which is connected with a steam source and is communicated with the shell mold and an inner cavity of the core mold respectively; the main part of the inner wall of the shell mold is of a cylindrical shape; the inner wall of the shell mold is provided with an interval with the length of 30cm-50cm, where a plurality of shell steam holes are distributed; the main part of the outer wall of the core mold is of a cylindrical shape; and the outer wall of the core mold is provided with an interval with the length of 15cm-35cm, where a plurality of core steam holes are distributed. The molding equipment adopts simple parts; and the inner structure of the mold is ingenious, the molding efficiency is high and the speed is high.

The invention discloses a magnet building block structure, and a building block is polyhedral. Redial magnetizing magnets are arranged in all or part of shell faces of the building block, and any two building blocks can be absorbed and spliced through the redial magnetizing magnets; the inner side of each shell face internally provided with a magnet is provided with a magnet mounting plate, which encloses an airtight cavity on the inner side of the shell face, the magnet is arranged in the cavity and can freely rotate around the own axis and adjust the poles. According to the scheme, cavities are enclosed on the shell faces of the building block by adopting magnet mounting plates, and further structures of the redial magnetizing magnets which can freely rotate along the axes are enclosed, so that the low cost and high efficiency of the manufacturing and assembling of the magnet building block are realized; specially, the enclosing mode of plugging and unplugging the magnets on the side faces is adopted, the structural design is ingenious, the processing and the assembling are further facilitated; inner cavity assembling magnets are enclosed by adopting magnet pressing blocks on cover faces, so that the connection is stable, and the processing is easy; the manufacturing efficiency of the building block is greatly improved by the entire scheme, the manufacturing difficulty and the manufacturing cost are reduced, and strong practicality is realized.

The invention relates to a multifunctional drawing ruler which is formed by combining a primary ruler body and a secondary ruler body through a fixing button, wherein the primary ruler body and the secondary ruler body are marked with scales; the fixing button is provided with a hand screw, the primary ruler body is provided with a through groove, the two sides of a sliding block are provided with grooves, the groove on one side of the sliding block is provided with two fastening screws, the sliding block is connected with the through groove in the primary ruler body in a matched mode through the grooves in the two sides of the sliding block, the center position of the upper surface of the sliding block is provided with a through hole and a convex cylindrical buckle, the secondary ruler body is provided with a through groove, the length of the through groove in the secondary ruler body reach to the position of the fixing button, and the width of the through groove in the secondary ruler body is larger than the width of the through groove in the primary ruler body; a string is connected between the fixing button and the convex cylindrical buckle of the sliding block. When the multifunctional drawing ruler is used, an arbitrary angle, parallel lines, a circle, an oval and other geometric figures can be drawn as needed by moving the sliding block and the fixing button. The multifunctional drawing ruler is simple in structure and convenient to use and brings convenience to teaching of teachers and to learning of pupils.