7 results about "Hexagonal pyramid" patented technology

A bicycle wheel assembly structure includes an annular rim, a hub, nipples, and spokes. The annular rim includes multiple rim penetration sections, each of which includes a rim-side limiting part on a circumference. The hub is arranged at the center of the annular rim. The hub includes multiple hub penetration sections. The rim-side limiting part and the nipple limiting part, and also the hub-side limiting part and the spoke limiting part, are all made in a hexagonal pyramid form with apex truncated to form a planar surface and including bevel facets so as to provide an anti-sliding effect resulting from geometric constraint and high static friction at both the annular rim-side and the hub-side. The angle of the hexagonal pyramid of the nipple limiting part is 60°, 90°, or 120°, and an optimum arrangement can be made based on the material elongation of the spokes and the desired tension.

The application discloses a Micro-LED chip with a double-sided microstructure sapphire substrate and a preparation method and application thereof, and relates to the technical field of optoelectronic devices. The Micro-LED chip comprises a sapphire substrate and a flip GaN-based light-emitting unit arranged on one side of the sapphire substrate. The sapphire substrate has oppositely arranged first and second surfaces, the first surface faces the flip GaN-based light-emitting unit, and the second surface is a light-emitting upper surface. The first surface is formed with a microlens structure between the sapphire substrate and an n-type GaN layer, and the second surface is formed with a hexagonal pyramid microstructure array, which comprises a plurality of periodically arranged hexagonal pyramid structure units. The application can improve the surface light-emitting efficiency and the proportion of effective forward light emission while maintaining a high light extraction efficiency, and reduce the crosstalk influence of light emission in the sidewall direction on adjacent light-emitting pixels.

A breadth-first autonomous selection method for a hexagonal pyramid flywheel configuration includes: determining flywheel combinations that cannot be simultaneously connected to the control system; counting the number of faulty flywheels; counting the number of faulty flywheels initially connected to the control system; when the number of faulty flywheels is 2 or 3, directly selecting existing fault-free flywheels to connect to the control system; when the number of faulty flywheels is greater than 3, directly setting all flywheels not to be connected to the control system; when only 1 flywheel is faulty when initially connected to the control system, prioritizing traversing all available flywheels to obtain 4 flywheels containing the shortest path to all vertices, and using these as the initial value for connection to the control system, determining the 4 available flywheel connection methods through a breadth-first search algorithm; when flywheel combinations that cannot be simultaneously connected to the control system are found during the search process, continuing the breadth-first search algorithm to determine the final flywheel connection combination method, thus completing the breadth-first autonomous selection design of the hexagonal pyramid flywheel configuration.

The invention discloses a deployable antenna mechanism based on decagonal and hexagonal heterogeneous module networking and a paraboloid profile division method thereof. The deployable antenna mechanism is formed by combining a plurality of pyramid combination units in a networking mode. Each pyramid combination unit comprises a ten-pyramid basic deployable unit and five hexagonal-pyramid basic deployable units which surround the periphery of the ten-pyramid basic deployable unit, are distributed in an annular array mode and are movably connected with the ten-pyramid basic deployable unit, and every two adjacent hexagonal-pyramid basic deployable units are movably connected through a foldable connecting rod piece. The ten-pyramid and hexagonal-pyramid multi-rod-piece structure has the good symmetry characteristic and the tight splicing characteristic, rapid expansion and combination can be achieved through circumferential array arrangement, the requirements of paraboloid deployable antennas of different sizes and different curvatures can be met on the premise that the excellent rigidity performance is kept, and the design is reasonable. An effective technical path is provided for the design of a large-caliber and high-precision antenna, and the antenna can be suitable for different working environments.

The invention discloses a deployable antenna mechanism based on bottom equilateral triangular pyramid and hexagonal pyramid heterogeneous modules and a paraboloid profile networking method thereof. The deployable antenna mechanism is formed by combining a plurality of pyramid combination units in a networking mode. Each pyramid combination unit comprises a hexagonal pyramid basic deployable unit and nine triangular pyramid basic deployable units which are arranged around the hexagonal pyramid basic deployable unit and movably connected with the hexagonal pyramid basic deployable unit, and every two adjacent triangular pyramid basic deployable units are movably connected through a foldable connecting rod piece. Parabolic profile networking of the deployable antenna mechanism is realized by adopting a triangular and hexagonal combined graph method, so that the deployable antenna mechanism can keep good profile precision in the unfolding and folding processes, and the adaptability and fault tolerance of fitting a compound profile division unit into a paraboloid are further improved; and the device can better adapt to parabolic profiles with different calibers.

The utility model discloses a municipal landscaping brick convenient to replace greening plant soil, which comprises a hexagonal brick body, a hexagonal pyramid-shaped hole is arranged in the hexagonal brick body, first vertical grooves are arranged on the outer wall of the hexagonal brick body at equal intervals, connecting grooves are arranged at the bottom of the hexagonal brick body at equal intervals, and the first vertical grooves are communicated with the connecting grooves. The inner wall of the hexagonal-pyramid-shaped hole is provided with second vertical grooves at equal intervals, the second vertical grooves communicate with the connecting grooves, and the inner walls of the first vertical grooves are connected with vertical rods in a matched mode. The utility model relates to the technical field of municipal landscaping, and solves the problems that in the prior art, when soil of greening plants needs to be replaced or the plants need to be maintained, spliced and laid greening bricks need to be disassembled one by one, then the soil of the greening plants needs to be replaced, the operation process is tedious, a large amount of manpower and time need to be consumed, efficiency is low, and cost is high. And rapid and efficient greening maintenance is not facilitated.

A reactor (100) is proposed. The reactor (100) is configured for production of hydrocarbons and synthesis gas via partial oxidation, comprising a burner block (130) and a fireroom (140). The fireroom (140) has a plurality of walls forming a lateral surface of a hexagonal prism or a truncated hexagonal pyramid.