3results about How to "Increase load carrying capacity" patented technology

The utility model provides an assembly type rapid building structure of a water conservancy service bridge, and relates to the technical field of bridge engineering. The structure comprises an upper layer, a middle layer and a lower layer from top to bottom. The upper layer comprises two groups of rectangular bridge frames, and anti-leakage cloth is laid on the bridge frames; the side edge of the bridge frame is provided with a side frame, and a concrete layer is filled above the anti-leakage cloth in a middle range defined by the side frame; the concrete layer is formed on the bridge frame through pouring, so that the load is effectively balanced, and the load bearing capacity of the bridge body is greatly improved; a stable matrix structure is constructed below the bridge frame in a mode that the first splice plates and the second splice plates are spliced in a staggered mode, the connection strength of the matrix in the horizontal direction is enhanced by means of the double-end studs and the U-shaped hanging lugs, and the bearing performance of the bridge body is further enhanced. The assembly type service bridge shows extremely high connection strength and can bear a large load; the problems that the connection strength between all parts of an existing assembly type service bridge is not high, and the existing assembly type service bridge cannot bear heavy loads usually are solved.

The utility model discloses a kind of multi-contact magnetic blow arc extinguishing structure, including base assembly, arc separation chamber and blow arc magnetic steel, the blow arc magnetic steel is detachably installed in arc separation chamber, and arc separation chamber and base assembly are slidably connected and clamped fixedly to form arc extinguishing structure, the base assembly and arc separation chamber are equipped with the arc separation grid corresponding to position, and arc extinguishing structure is assembled to the relay, and arc separation grid divides every group of contact of relay into separate arc separation space after the relay.The utility model can provide blow arc magnetic field and arc separation chamber for snap relay, accelerate to extinguish arc generated in the process of breaking large current load of relay, improve the load capacity of relay;Arc separation chamber and base assembly are simple and firm to install, reach the effect of limit stable, and the volume of blow arc magnetic steel is flexible and variable, different types of blow arc magnetic steel can be selected according to use environment, so that the load performance of relay can meet more application scenarios.

This invention discloses a repeatable locking mechanism based on disc spring unstable switching, including a support housing, a spindle, a motor assembly, a screw, a slider, a nut slider, a conical coil spring, a disc spring, and a self-locking mechanism. The invention also discloses a method for operating the above-mentioned repeatable locking mechanism, including: the motor assembly driving the spindle to rotate; the slider moving to a first driving position engaging with the upper screw, the spindle driving the upper screw to rotate via the slider; the upper screw driving the upper nut slider to move up and down, locking or unlocking the self-locking mechanism A; the upper screw driving the upper nut slider to continue moving downwards, after the conical coil spring undergoes torsional deformation, the nut slider pushes the slider downwards, causing the slider to move to a second driving position engaging with the lower screw, the spindle driving the lower screw to rotate via the slider. This invention enables selective locking and further improves the stiffness of the flexible arm.