5results about How to "Increased buckling strength" patented technology

The utility model discloses a magnetic powder brake with easily replaced magnetic powder, which comprises a shell and a brake mechanism, the shell is provided with an accommodating groove for accommodating the brake mechanism, the shell is detachably connected with a cover body assembly for sealing or exposing the accommodating groove, the cover body assembly comprises two cover plates which are detachably connected to two end parts of the shell respectively, and the two cover plates are detachably connected with the brake mechanism. The two cover plates and the shell are coaxially arranged, each cover plate is provided with three connecting holes, the three connecting holes in the two cover plates are triangularly distributed, the shell is provided with matching holes corresponding to the connecting holes, and a mounting bolt is in threaded connection between each connecting hole and the corresponding matching hole. The shell is provided with a reinforcing piece used for being matched with an installation bolt so as to improve the connection strength between the cover plate and the shell. The magnetic powder brake solves the problem that a magnetic powder brake which is easy to replace magnetic powder and high in connection strength between the cover plate and the shell is lacked in the prior art.

The utility model relates to the technical field of umbrella accessories, and discloses an umbrella buckle assembly and an umbrella thereof, the umbrella buckle assembly comprises an umbrella fabric, a rolling assembly is arranged at the top of the umbrella fabric, a buckle assembly is arranged at the top of the umbrella fabric, the rolling assembly comprises a first fixing plate fixedly installed on the outer wall of the umbrella fabric, and a rolling structure is arranged at one end of the first fixing plate. The buckle assembly comprises a first knitted cloth cover fixedly installed at the top of the umbrella cover, a buckle structure is arranged at the top of the first knitted cloth cover, the winding assembly further comprises a first connecting belt arranged at the top of the umbrella cover, the winding structure comprises a first winding drum fixedly installed at one end of a first fixing plate, and a hole is formed in the first winding drum; a discharging sleeve is fixedly mounted in the hole, and a clockwork spring plate is fixedly mounted at one end of the first connecting belt, so that the purposes of winding and protecting the buckle belt are achieved, the damage condition of the buckle belt is reduced, the durability of the buckle belt is improved, the service life of the device is prolonged, and the use convenience of the umbrella is improved.

The utility model discloses a closed impeller, which belongs to the technical field of impellers, and comprises an impeller main body and a closed cover buckled and fixed on the impeller main body, the impeller main body comprises a plurality of blades, the closed cover comprises an annular cover plate, a plurality of clasps are annularly arranged on the peripheral side of the cover plate, and the clasps are buckled and fixed on the cover plate. A groove hole is formed in a plate body of the cover plate, and a plurality of limiting grooves are annularly formed in the peripheral side of the inner periphery of the cover plate. Each blade comprises a top part and an outer side part; a first groove is formed in the outer side part, and the clasp is buckled with the first groove; a second groove is formed in the top, a protruding part and a tip part are formed after the second groove is formed, the protruding part is connected with the groove hole in an inserted mode, and the tip part is matched with the limiting groove. According to the scheme, the closed impeller is rapidly and simply produced in a buckling mode, glue dispensing or ultrasonic spot welding machining is omitted, the whole structure of the buckled impeller is stable, and the buckling strength is high.

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.