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Variable wheel base unmanned aerial vehicle mechanism with fire-extinguishing launcher

A technology for launching devices and unmanned aerial vehicles, which is applied to launch devices, rotorcraft, motor vehicles, etc., can solve the problems of increased take-off weight and reduced flexibility, and achieves increased flight speed, compact fuselage structure, and reduced take-off weight. Effect

Inactive Publication Date: 2017-09-05
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the volume of the UAV must be increased to meet the demand for bombs, which will increase the take-off weight and reduce the flexibility.

Method used

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  • Variable wheel base unmanned aerial vehicle mechanism with fire-extinguishing launcher
  • Variable wheel base unmanned aerial vehicle mechanism with fire-extinguishing launcher
  • Variable wheel base unmanned aerial vehicle mechanism with fire-extinguishing launcher

Examples

Experimental program
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Effect test

Embodiment Construction

[0016] combine figure 1 , a variable wheelbase unmanned aerial vehicle mechanism with a fire extinguishing launch device, including a transmission assembly 1, an arm assembly 2, a launch assembly 3 and a wing assembly 4. Wing assembly 4 includes some propellers and some propeller rotating shafts, and transmission assembly 1 includes main frame 24, screw rod 15, bearing 16, flange nut 17, connecting seat 18, motor 19, and machine arm assembly 2 includes some machine arms, each The machine arm includes a curved rod 5, an upper joint 6, a carbon tube 7, a connecting rod 8, a lower joint 9, a Y-shaped connecting rod 10, and a round nut 11. The launching assembly 3 includes a number of launching devices, and each launching device includes a launching tube 20. , Semicircle sleeve 21, flange 22, gun barrel holder 23, hoop 13, connecting rod 14.

[0017] Depend on figure 1 As shown, the wing assembly 4 includes four propellers, four propeller shafts, four arms, and four launching de...

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Abstract

The invention provides a variable wheel base unmanned aerial vehicle mechanism with a fire-extinguishing launcher. The unmanned aerial vehicle mechanism comprises a transmission assembly, an engine arm assembly, a launching assembly and a wing assembly, wherein the engine arm assembly comprises a curved bar, an upper joint, a carbon tube, a connecting rod, a lower joint, a Y-shaped connecting rod and a round nut; the curved bar, the upper joint, the carbon tube, the connecting rod, the lower joint and the Y-shaped connecting rod form a parallelogram; and the height of the parallelogram is changed under drive of external force, so that the wings are driven to always swing up and down parallel to the horizontal plane.

Description

technical field [0001] The invention relates to a fire-fighting unmanned aerial vehicle technology, in particular to a variable wheelbase unmanned aerial vehicle mechanism with a fire-extinguishing launching device. Background technique [0002] Multi-rotor drones have the characteristics of zero casualties, few restrictions on use, good concealment, and high cost-effectiveness. Their status and role in modern fire rescue are becoming increasingly prominent. The number, type and frequency of multi-rotor UAVs used for fire fighting are showing a rapid growth trend. Therefore, vigorously developing unmanned aerial vehicle-carrying fire-fighting technology has become the direction of competing research in various countries. In recent years, countries have issued their own drone development plans and increased investment, and the development of drones has shown an unprecedented upsurge. [0003] Traditional drones mainly carry fire extinguishing bombs by hanging. Therefore, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C27/20B64C27/32B64C3/56B64D1/04A62C3/02
CPCA62C3/025B64C3/56B64C27/20B64C27/32B64D1/04B64U10/10B64U50/19B64U2101/00
Inventor 张志安谢磊
Owner NANJING UNIV OF SCI & TECH
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