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71 results about "Harpoon" patented technology

A harpoon is a long spear-like instrument used in fishing, whaling, sealing, and other marine hunting to catch large fish or marine mammals such as whales. It accomplishes this task by impaling the target animal and securing it with barb or toggling claws, allowing the fishermen to use a rope or chain attached to the butt of the projectile to catch the animal. A harpoon can also be used as a weapon.

Pneumatic harpoon-grille landing assisting system of helicopter

PendingCN105923165AAchieve the purpose of landingEnsure safetyAircraft landing aidsEngineeringCylinder block
The invention discloses a pneumatic harpoon-grille landing assisting system of a helicopter. The pneumatic harpoon-grille landing assisting system comprises a harpoon and grilles, wherein the harpoon comprises a mounting plate; a pneumatic type telescopic mechanism is arranged at the lower part of the mounting plate; the pneumatic type telescopic mechanism comprises a cylinder body, a piston and a piston rod, wherein the cylinder body is fixed at the lower part of the mounting plate; the piston is arranged in the cylinder body in a radial direction to separate the inner part of the cylinder body into the upper part and the lower part; the piston rod is arranged in the cylinder body in an axial direction and extends out of the cylinder body; the upper part of the cylinder body and the lower part of the cylinder body communicate with an air tank through an electromagnetic valve; the electromagnetic valve is controlled by a controller; the lower end of the piston rod is connected with a pressing rotating switch and a locking removing mechanism which are matched for use. The pneumatic harpoon-grille landing assisting system disclosed by the invention has the advantages of being simple in structure, light in weight, convenient to repair and maintain, high in speed, free from pollution, low in power consumption and the like, and according to the pneumatic harpoon-grille landing assisting system, problems caused by hydraulic driving in a background art are solved.
Owner:HUBEI HANGDA TECH CO LTD

Preparation technology of harpoon-shaped terminal for connector

The invention relates to a preparation technology of a harpoon-shaped terminal for a connector. The preparation technology comprises the following steps that S1, a strip-shaped raw material plate is selected, and the raw material plate is placed at the starting position of a punching machine; S2, positioning holes are formed in the both sides of the raw material plate by punching, and excess edgematerials on the raw material plate are cut off; S3, the rod portion of the harpoon-shaped terminal is punched out, and a rectangular outline of the terminal is punched out through a rectangular framemold; S4, a hollowed-out area of the end part of the harpoon-shaped terminal and a concave arc-shaped area of the terminal are punched out; S5, a high-speed continuous die is used for precision-punching to form a 0.10-0.14mm terminal gap; S6, the end portion and the rod portion are chamfered, the edges of the end portion and the rod portion are removed; and S7, precision blanking are carried outto obtain a finished product of the harpoon-shaped terminal. Compared with the prior art, a set of technology for preparing novel harpoon-shaped terminals is designed, and novel harpoon-shaped terminals for the connectors with excellent mechanical properties and high yield of the finished products are obtained.
Owner:SHANGHAI LAIMU ELECTRONICS

Backlight plate, LED module and electronic equipment

The invention provides a backlight plate, an LED module and electronic equipment, the backlight plate comprises a PCB and an LED array, the PCB comprises a first plate body and a second plate body, the first plate body and the second plate body are arranged in a harpoon structure, one side of the first plate body extends towards the second plate body to form a first harpoon tooth part, and the other side of the first plate body extends towards the second plate body to form a second harpoon tooth part; one side of the second plate body extends towards the first plate body to form a second harpoon tooth part, and the LED arrays are evenly distributed on the first harpoon tooth part and the second harpoon tooth part. The PCB is arranged to be the first board body and the second board body which are of the harpoon structure, the use area of the board is reduced, the effective utilization rate of the board is increased, and the cost of the PCB is reduced when the LED heat dissipation requirement is met; meanwhile, the harpoon tooth parts are uniformly arranged at intervals, so that the internal stress of the backlight plate is reduced, the warping of the backlight plate is improved, and the shipment yield of a backlight plate factory and the process yield of SMT (Surface Mount Technology) are improved; makeup production is achieved through the first plate body and the second plate body, the distribution number of LEDs is increased, and the production efficiency of a backlight plate factory and the surface mounting efficiency of SMT are improved.
Owner:SHENZHEN MTC LIGHTING CO LTD
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