A method, system, and apparatus for collecting waste. In one embodiment, an autonomous plastic collecting robot (APCR) device for collecting waste may include a net structure that picks up micro plastic particles dispersed in water; a tube that transports the micro plastics collected by the net structure into a main internal container; an artificial tongue for collecting larger plastics, the artificial tongue comprised of a rolling staircase with fork-like structures in placed of the stairs; a plastic degrading medium contained in the main internal container; a no-joint tail structure which acts as the primary power source for the APCR, the no-joint tail structure housing dielectric elastomer materials and a rotation shaft located between at least two electric generators.

A fin stabilizer for stabilizing a watercraft against rolling movements includes a main fin configured to be pivoted by a watercraft-side fin drive, a tail fin, and an elastically deformable connection between the main fin and the tail fin, the elastically deformable connection being configured to flex whenever a water force acting on the tail fin is greater than a predetermined amount.

A fin stabilizer for stabilizing a watercraft against rolling movements includes a main fin configured to be pivoted by a watercraft-side fin drive, a tail fin, and an elastically deformable connection between the main fin and the tail fin, the elastically deformable connection being configured to flex whenever a water force acting on the tail fin is greater than a predetermined amount.

A hairtail-imitating high-speed soft robot driven based on chemical exergonic reaction, including a fish head module, a fish body module and a fishtail module; wherein the fish head module includes a fish head shell, the fish head shell is internally provided with a rigid exergonic reaction bin, a combustible agent storage unit, a combustion promoter storage unit, and an exergonic reaction excitation device, and a rigid push plate is in sliding fit in the rigid exergonic reaction bin; the fish body module includes a flexible fishbone, restraint assemblies, and flexible fish skin; and the fishtail module includes a fishtail fixing block.

A hairtail-imitating high-speed soft robot driven based on chemical exergonic reaction, including a fish head module, a fish body module and a fishtail module; wherein the fish head module includes a fish head shell, the fish head shell is internally provided with a rigid exergonic reaction bin, a combustible agent storage unit, a combustion promoter storage unit, and an exergonic reaction excitation device, and a rigid push plate is in sliding fit in the rigid exergonic reaction bin; the fish body module includes a flexible fishbone, restraint assemblies, and flexible fish skin; and the fishtail module includes a fishtail fixing block.

A robotic fish comprises one or more torque reaction engines and a fish body, wherein the torque reaction engine cyclically oscillates and causes a wave to propagate across the fish body, including through a flexible wing, accelerating thrust fluid and propelling the robotic fish.

Disclosed is a bionic fish single-degree-of-freedom modular structure based on a cam mechanism. The bionic fish single-degree-of-freedom modular structure comprises a plurality of modules which are sequentially connected, wherein the foremost one of the modules is a fish head module, and the last one of the modules is a fish tail module; each module in the modules comprises a rack, a rotating shaft is arranged in the center of the rack in a penetrating mode, the second end of the rotating shaft of the previous module is connected to the first end of the rotating shaft of the next module through a universal coupling, the next module is connected with the previous module through a swing connecting piece, and the effect that the modules swing in a plane is achieved, wherein the swing connecting pieces comprises cylindrical cams, pin shafts, first bearings and second bearings; and through combination of the modules, the swimming postures of fishes can be achieved. A single-degree-of-freedom modular bionic robot fish is designed according to the swimming postures of sailfish and can be driven by a single motor, and the fluctuation postures of the bodies of the fishes are achieved through motion transmission of a mechanical structure; and modular design is adopted, and different swimming postures can be achieved by replacing the modules.

Disclosed is a bionic fish single-degree-of-freedom modular structure based on a cam mechanism. The bionic fish single-degree-of-freedom modular structure comprises a plurality of modules which are sequentially connected, wherein the foremost one of the modules is a fish head module, and the last one of the modules is a fish tail module; each module in the modules comprises a rack, a rotating shaft is arranged in the center of the rack in a penetrating mode, the second end of the rotating shaft of the previous module is connected to the first end of the rotating shaft of the next module through a universal coupling, the next module is connected with the previous module through a swing connecting piece, and the effect that the modules swing in a plane is achieved, wherein the swing connecting pieces comprises cylindrical cams, pin shafts, first bearings and second bearings; and through combination of the modules, the swimming postures of fishes can be achieved. A single-degree-of-freedom modular bionic robot fish is designed according to the swimming postures of sailfish and can be driven by a single motor, and the fluctuation postures of the bodies of the fishes are achieved through motion transmission of a mechanical structure; and modular design is adopted, and different swimming postures can be achieved by replacing the modules.

A jewelry display has a ferromagnetic planar substrate having a front surface opposite a back surface. A wall attachment mechanism is attached to the back surface of the ferromagnetic planar substrate. The wall attachment mechanism is configured to attach the ferromagnetic planar substrate to a substantially vertical surface, such a wall. A plurality of jewelry fixtures are configured to be removably attached to the front surface of the ferromagnetic planar substrate. Each jewelry fixture has at least one permanent magnet and a jewelry holding structure. The at least one permanent magnet of each jewelry fixture is magnetically attracted to the ferromagnetic planar substrate. At least one of the plurality of jewelry fixtures is a ring holding structure, a bracelet holding structure, an earring holding structure, a necklace holding structure, a watch holding structure, a bowl structure or a shelf structure.

A jewelry display has a ferromagnetic planar substrate having a front surface opposite a back surface. A wall attachment mechanism is attached to the back surface of the ferromagnetic planar substrate. The wall attachment mechanism is configured to attach the ferromagnetic planar substrate to a substantially vertical surface, such a wall. A plurality of jewelry fixtures are configured to be removably attached to the front surface of the ferromagnetic planar substrate. Each jewelry fixture has at least one permanent magnet and a jewelry holding structure. The at least one permanent magnet of each jewelry fixture is magnetically attracted to the ferromagnetic planar substrate. At least one of the plurality of jewelry fixtures is a ring holding structure, a bracelet holding structure, an earring holding structure, a necklace holding structure, a watch holding structure, a bowl structure or a shelf structure.