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6results about How to "Eliminate weak links" patented technology
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Rubber joint
ActiveCN222186147Uimprove performancereduce stress concentrationAdjustable jointsExpansion jointMechanical engineering
The utility model relates to a rubber joint which comprises a first connector and a second connector, a corrugated section is arranged between the first connector and the second connector, the first connector and the second connector are communicated through the corrugated section, and the corrugated section comprises a first expansion joint, a second expansion joint and a third expansion joint which are sequentially expanded from the first connector to the second connector. The same positions of the circumferential edges of the first telescopic joint, the second telescopic joint and the third telescopic joint are fixedly connected, and the other sides, away from the connecting positions, of the first telescopic joint, the second telescopic joint and the third telescopic joint are configured to be close to or away from one another under the action of external force. According to the rubber joint designed by the utility model, the expansion joints which are fixedly connected are adopted through the structural design, so that stress concentration caused by overlapping of single expansion joint materials is effectively reduced, the overall stability and durability of the structure are enhanced, weak links at the bent part of the joint are eliminated, and the service life of the joint is prolonged. The performance of the rubber joint in a dynamic load or vibration environment is obviously improved, and the service life is prolonged.
Owner:NINGBO MAIKE SEALING TECH CO LTD
Steel wire rope fixing ring and manufacturing method thereof
The present application relates to a kind of steel wire rope fixing ring in the technical field of protective net production, which is self-wound by single spiral strand of steel wire rope.Formed when preparing, including the following steps: (1) cut steel wire rope according to target length;(2) the cut steel wire rope is disassembled into multiple spiral strands;(3) take one of the spiral strands, bend one end into a single strand ring, the diameter of the single strand ring is equal to the design diameter of the target steel wire rope fixing ring;(4) based on the single strand ring, self-winding is carried out along the ring body direction with the same spiral strand until the spiral strand is wound;(5) lock the strand head at the winding end, and the steel wire rope fixing ring is prepared.The annular protective net made of the above steel wire rope fixing ring has excellent impact energy performance.
Owner:ZUNYI CHONGYUE METAL PROD CO LTD
Composite material with longitudinally distributed basalt fibers as well as preparation method and application of composite material
PendingCN121946943AImprove axial compressive strengthimprove performanceLamination ancillary operationsLaminationAdhesiveAxial pressure
The invention discloses a composite material with longitudinally distributed basalt fibers as well as a preparation method and application of the composite material. The composite material comprises at least one layer of base plate, wherein the base plate is formed by closely paving a plurality of prismatic unit bodies which are consistent in thickness and have regular polygonal cross sections; the unit bodies in the composite material are fixed into a whole through an adhesive; the unit body is composed of a plurality of basalt fibers which are longitudinally arranged; the fiber direction of the basalt fibers in the unit bodies is the same as the axis direction of the unit bodies and is perpendicular to the plate face of the base plate obtained by tiling the unit bodies. The core of the bulletproof armor plate is that the distribution direction of basalt fibers is changed from the radial direction to the axial direction, so that the problem that the radial pressure resistance is insufficient when traditional fibers are transversely distributed is solved, and the prepared bulletproof armor plate can convert impact force of bullets into pressure on the axial direction of the fibers; the extremely high axial compressive strength of the basalt fibers is fully utilized, so that the bulletproof efficiency is remarkably improved, and the light weight of the armor is achieved.
Owner:GUANGZHOU ALZENI TECHNOLOGY CO LTD
Insert-containing rubber product injection mold and injection molding method
PendingCN121928725ASolving lateral offset issuesMake sure it's centeredInjection mouldingMechanical engineering
Owner:XIAMEN MAIFENG SEAL PRODS
Polyester fiber flexible net amplification connecting structure
The utility model discloses a polyester fiber flexible net amplification connecting structure which is used for connecting two adjacent flexible nets, the two adjacent flexible nets are provided with overlapped weft belts and warp belts at the amplification connecting position, and the polyester fiber flexible net amplification connecting structure comprises thin steel wire ropes, iron wires and polyester braided ropes. Wherein the thin steel wire rope is arranged at the warp belt in an overlapping mode, the iron wire is bound on the outer ring of the warp belt and the thin steel wire rope which are overlapped at the gap position of the weft belt so as to fasten the warp belt and the thin steel wire rope, and the polyester braided rope extends in the extending direction of the warp belt in a winding mode. And the longitudinal belts and the latitudinal belts are bundled at the connecting positions of the longitudinal belts and the latitudinal belts, so that the strength of the amplification positions of the two adjacent flexible nets can be effectively enhanced and reaches more than 50% of the strength of the body, and the construction safety of coal miners is ensured.
Owner:HOCK TECH CO LTD
A panelless civil defense device coated with polyurea.
ActiveCN122082628AImprove utilization efficiencyavoid mutual interferenceDoor leavesWar-like protectionArchitectural engineeringStructural engineering
This invention belongs to the field of civil defense engineering and explosion-proof protection technology, and relates to a polyurea-coated, panelless civil defense device, including a load-bearing outer panel, a reinforcing frame, elastic damping connectors, an internal cast-in-place body, an arc-shaped elastic support rod, and a support plate. The support plate's inner side contacts the arc-shaped protruding surface of the arc-shaped elastic support rod, forcing the rod to undergo elastic compression deformation. The arc-shaped structure of the support rod produces a progressive stiffness response under pressure: initially, the arc-shaped structure is easily deformable, providing a large displacement stroke to absorb energy; as the compression increases, the stiffness of the support rod gradually increases, effectively suppressing excessive deformation. During deformation, the arc-shaped elastic support rod generates a reaction force on the reinforcing frame, which is evenly distributed to the internal cast-in-place body through the three-dimensional mesh structure of the reinforcing frame. Its structural design is scientifically sound, easy to use, provides excellent protection, and is environmentally friendly.
Owner:QINGDAO STATE WORKERS PROTECTION EQUIP CO LTD