3results about How to "Reduce shock peak" patented technology

The utility model discloses a bridge anti -collision device based on the coupling of shear hardening and negative poisson's ratio effect, including a plurality of energy -absorbing box and a plurality of fixed ring, a plurality of energy -absorbing box evenly is placed in the outside of pier and is closely spliced between adjacent energy -absorbing box, a plurality of fixed ring is evenly placed on the outer ring surface of pier and is in the embrace shape, and the fixed ring between adjacent is closely connected to be connected into a whole around pier, and the energy -absorbing box is buckled on the outside of fixed ring, and the bolt for fixing energy -absorbing box and fixed ring is inserted between energy -absorbing box and fixed ring from top to bottom, the utility model relates to building safety protection technical field, through the collaborative energy -absorbing mechanism of the introduction of negative poisson's ratio effect and shear hardening effect, the bridge anti -collision device of structure stable, energy -absorbing efficient has been constructed, and simultaneously through the modularization and the bolt type design, the quick dismounting and partial replacement function of device have been realized, and maintenance difficulty and cost have been reduced, have good engineering applicability and popularization prospect.

This invention relates to the field of support structure technology, specifically to a prefabricated double-row steel sheet pile foundation pit support structure and construction method. The support structure includes a locking mechanism and a protective mechanism. The locking mechanism includes a lock body, an airbag block, and a sealing connection part. The lock body is a plate-shaped structure with slots on both side walls. An air cavity is formed inside the lock body. An opening communicating with the air cavity is formed on the inner wall of the slot. The airbag block is located on the inner wall of the slot and communicates with the opening. Multiple circular openings a communicating with the air cavity are formed on the inner wall of the slot. Multiple sets of sealing connection parts are provided and connected inside the air cavity. The protective mechanism includes a protective plate and an elastic membrane. Two sets of protective plates are respectively attached to both sides of the steel sheet pile body and detachably connected to them. Multiple grooves are formed on the protective plate. The elastic membrane is connected to the groove openings. This invention can significantly reduce the friction between the steel sheet pile and the locking body, as well as the friction between the steel sheet pile body and the soil sidewall, thereby reducing the difficulty of pile extraction.

This utility model belongs to the field of offshore wind power and discloses a quick unhooking device for towing floating wind turbines. It includes a housing, a piston, and an oil tank. The housing and piston are respectively used to connect to corresponding cables. The housing has an inner cavity with an opening on one side. The piston slides and inserts into the inner cavity. Multiple first separation plates are spaced apart on the inner wall of the inner cavity opposite the piston. Multiple second separation plates are spaced apart on the outer wall of the piston facing the inner cavity. The first and second separation plates are staggered, forming a serpentine channel. The serpentine channel is connected to the oil tank via a liquid inlet pipe. A seawater interface is provided on one side of the liquid inlet pipe, and a water inlet valve is installed on the seawater interface. The dual buffering principle of this utility model not only effectively copes with high-frequency, low-amplitude vibrations but also stores energy through the oil compression effect when facing strong impacts, significantly reducing the impact peak value, minimizing damage to connecting parts, and improving system stability.