2results about How to "Increased buckling strength" patented technology

This invention relates to a magnetic snap fastener, comprising a female snap fastener and a female snap fastener. The female snap fastener includes a housing, a top cover, buttons on both sides, a locking assembly, and a locking plate. The locking plate is linked to the locking assembly and contains a first magnet. The female snap fastener has a protruding engaging post with a recessed engaging groove on its side wall. The bottom of the female snap fastener has an installation cavity, and the engaging post contains a second magnet. The engaging post is guided into the installation cavity by magnetic attraction, and the locking assembly engages with the engaging groove for locking. When engaged, only close proximity is required; no calibration is needed. Pressing the button causes the locking assembly to move away from the engaging groove. Simultaneously, the locking assembly causes the locking plate to move upward, increasing the distance between the first and second magnets. Pressing to unlock also reduces the magnetic attraction force, allowing the user to remove the female snap fastener with less force, making it easier and more convenient to use.

The invention relates to the technical field of nuclear fuel structure design, and particularly discloses a multi-structure coordinated mixing high-reliability monometal positioning grillwork which comprises inner strips and outer strips which are inserted in a matched mode to form lattice cells. On the four inner strips arranged in the shape of the Chinese character'jing ', the two sides of the eight lattice cell positions at one end of each inner strip are respectively provided with a protruding fuel rod rigid supporting structure, and no fuel rod elastic supporting structure A exists; and on the rest of the inner strips, the two fuel rod rigid supporting structures at the upper and lower symmetrical positions and the fuel rod elastic supporting structure A at the middle position protrude towards the two sides of the inner strips respectively. The flow resistance and the structural strength reliability are comprehensively considered, the high grillwork design and the #-shaped inner strips with the rigid supporting structures on the two sides are adopted, the buckling strength of the positioning grillwork is improved, and the proper flow resistance is kept.