5 results about "Structural principle" patented technology

The utility model discloses a building block material transportation device which comprises a frame body and a plug pin, the frame body is used for containing building blocks, the interior of the frame body is hollow, the upper end and the lower end of the frame body are open, a plurality of square pipes which extend from top to bottom and are oppositely arranged in pairs are arranged on the peripheral side of the frame body, and connecting rods are arranged on the square pipes. The upper end and the lower end of the connecting rod are provided with hanging rings, and the plug pin penetrates through the two matched hanging rings at the lower end of the frame body. The building block hoisting device has the beneficial effects that the structural principle is simple, the device can be directly hoisted away after the connecting and limiting assembly is detached, the operation is simple, convenient and practical, meanwhile, the damage to building blocks is avoided, and the safety in the hoisting process of the building blocks is ensured to a great extent.

The utility model provides a hanging structure and a vehicle, the hanging structure comprises a plurality of hanging block components which are connected in sequence, each hanging block component comprises an elastic device and a framework device, the elastic device is used for fixing a hanging hook, the framework device partially wraps the elastic device, and the framework device is used for fixing the hanging hook. Every two adjacent hanging block assemblies are connected through an elastic connecting piece. The hanging structure is simple in structural principle and convenient to implement, the problem that materials are fractured after being aged is solved by adding the framework device, the rigidity of the hanging structure is adjusted through the synergistic effect of the elastic device, the framework device and the elastic connecting piece, the service life of the hanging structure is prolonged, and meanwhile the service life of the hanging structure is prolonged. And the rigidity of the whole hanging structure is not too large, so that the buffering and vibration absorbing effects of the hanging structure are not influenced.

The invention provides a weakening groove force transmission route topological optimization method and system, overcomes the defects of an existing design method, provides a topological optimization method different from margin design, overcomes the design difficulty of weakening grooves with large thickness, light weight and high elongation, and performs high-reliability and fine design on the weakening groove structure. Various methods such as weakening groove damage parameter analysis, size sensitivity analysis, structural principle contrastive analysis, size optimization analysis and force transfer route optimization design are adopted to greatly improve weakening groove force transfer, the continuity and uniformity of a force transfer route are optimized, the stress level of the weakening groove is reduced by 50% or above, and it is verified through all levels of ground tests and flight tests that the stress level of the weakening groove is reduced by 50% or above. And support can be provided for the design of similar weakening groove structures.

The utility model relates to the technical field of building reconstruction, in particular to an existing cantilever beam lengthening structure, which improves the flexural capacity of a beam by arranging a newly-added bottom bar, a newly-added waist bar and a newly-added stirrup on the lower side of an original cantilever beam, so that an original beam top bar of the original cantilever beam can meet the new stress requirement of a building and does not need to be additionally added, and the construction cost is reduced. The problem that original beam top ribs of an original cantilever beam are increased is solved, and the safety of the cantilever beam is guaranteed. At the joint of the original cantilever beam and the newly-added cantilever beam, the newly-added top rib and the newly-added waist rib are connected with the original beam top rib, the original beam waist rib and the original beam bottom rib of the original cantilever beam in a welded mode, force transmission is reliable, meanwhile, the newly-added cantilever beam increases the beam height at the joint of the original cantilever beam and the lengthening section, the newly-added top rib needed by calculation is reduced, and the construction cost is reduced. The newly-added top rib only needs to be arranged in a single layer and welded to the original beam top rib of the original cantilever beam, and the structure is clear in principle, reliable in connection, convenient to construct and high in practicability.

This invention discloses a side-suction ventilation louver with a thermal pressure enhancement effect, comprising: a truss, a first protective panel structure, a roof structure, and a drainage protective panel structure. The roof structure includes a light-transmitting protective panel inclinedly disposed at the top of the truss, and a second protective panel structure disposed on the outer side of the truss and connected to the edge of the light-transmitting protective panel. The second protective panel structure is fixedly connected to the first protective panel structure through a transverse connector. The roof structure and the first protective panel structure enclose a ventilation chamber. The second protective panel structure includes an inclined surface and an inwardly bent vertical surface. The vertical surface forms a cantilever structure at the upper edge of the first protective panel structure to shield the exhaust vent, eliminating the possibility of rainwater backflow from a structural principle perspective.