Heavy-load rotorcraft

Abstract

The invention discloses a heavy-load rotorcraft which comprises a multi-rotor aircraft body, an undercarriage is assembled on the bottom surface of the multi-rotor aircraft body, and the undercarriage comprises landing levers which are arranged in an outward inclined mode and a cross rod which is arranged between the landing levers and is of an integrated structure; the undercarriage structure of the multi-rotor-wing large-load-capacity unmanned aerial vehicle with the brand of YI and the model number of 6 shafts is improved. The undercarriage of the unmanned aerial vehicle is assembled on the bottom surface of the fuselage, so that a combined hook rod is conveniently screwed to suspend a load, the efficiency is improved, and the unmanned aerial vehicle is convenient to mount, use, assemble and maintain.

Description

Technical Field

[0001] The invention relates to the technical field of aircraft, and in particular to a large-load rotorcraft. Background Art

[0002] In the current market, the YI brand, 6-axis multi-rotor drone with large load capacity can be used for fertilization and cargo transportation. However, the landing gear and fuselage of the drone are integrated, which makes it inconvenient to assemble the landing gear on the bottom of the fuselage, and it is also inconvenient to replace different hooks to hang different loads according to different needs, and the flexibility of use and assembly is lacking. Summary of the invention

[0003] The object of the present invention is to provide a large-load rotorcraft to solve the problems raised in the above-mentioned background technology.

[0004] The present invention provides the following technical solution: a large-load rotorcraft, comprising a multi-rotor aircraft body, characterized in that: a landing gear is assembled on the bottom surface of the multi-rotor aircraft body, the landing gear comprises a landing rod arranged outwardly and a cross bar arranged between the landing rods and forming an integrated structure, and a hook rod assembly is hooked on the cross bar; the hook rod assembly comprises a hook rod 1 and a hook rod 2 screwed and assembled with the hook rod 1, the hook rod 1 comprises an upper hook body and an internally threaded tube arranged at the bottom end of the upper hook body and forming an integrated structure, the hook rod 2 comprises a lower hook body and a screw arranged at the top end of the lower hook body and forming an integrated structure, and the screw and the internally threaded tube are screwed and installed for adjustment.

[0005] Preferably, a connecting tube is provided at the top end of the landing rod, and a matching connecting tube corresponding to the connecting tube is provided on the bottom surface of the multi-rotor aircraft body.

[0006] Preferably, the connecting pipe and the matching connecting pipe are both provided with through holes, through which studs at both ends are penetrated and connected, and fixing nuts are installed at both ends of the studs at both ends.

[0007] Preferably, the cross bar is penetrated by a hanging hole.

[0008] Preferably, the screw rod and the internal threaded tube are fixed by a flange nut. The beneficial effect of the present invention is that the present application improves the landing gear structure of a 6-axis multi-rotor drone with a large load capacity of the brand YI. By assembling the landing gear of the drone on the bottom surface of the fuselage, it is convenient to screw the combined hook rod to hang the load, the efficiency is improved, the installation and use are convenient, and the assembly and maintenance are also convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the main structure of a multi-rotor aircraft; Figure 3This is a schematic diagram of the landing gear structure; Figure 4-5 It is a schematic diagram of the structure of hook rod one and hook rod two; In the figure: a multi-rotor aircraft body 1, a landing gear 2, a landing rod 21, a connecting pipe 22, a matching connecting pipe 23, a through hole 24, two studs 25, a fixing nut 26, a cross bar 27, a hanging hole 28, a hook rod 1 3, an upper hook body 31, an internally threaded tube 32, a hook rod 2 4, a lower hook body 41, a flange nut 42, a screw 43, and a hook rod assembly 100. DETAILED DESCRIPTION

[0010] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0011] See also Figures 1 to 5 As shown, the technical solution provided by the present invention is: a large-load rotorcraft, including a multi-rotor aircraft body 1, which is a prior art structure.

[0012] In view of the existing market, a multi-rotor drone with a brand name of YI and a 6-axis model and a large load capacity can be used for fertilization and cargo transportation. However, the landing gear and the fuselage of the drone are an integrated structure, which makes it inconvenient to assemble the landing gear on the bottom of the fuselage, and it is also inconvenient to replace different hook rods according to different needs to hang different loads, and the problem of lack of assembly flexibility. The present application improves the landing gear installed on the bottom of the existing multi-rotor drone by adopting an assembly structure, and the landing gear is easy to disassemble and assemble, and the hook-mounted hook rod is easy to screw and replace different hook rods according to the needs of suspension, and is flexible to use.

[0013] The innovation of the present application is that a landing gear 2 is assembled on the bottom surface of the multi-rotor aircraft body 1, and the landing gear 2 includes a landing rod 21 arranged outwardly and tilted, and a cross bar 27 arranged between the landing rods and having an integrated structure, and the cross bar 27 is penetrated by a hanging hole 28. There is at least one hanging hole. A hook rod assembly 100 is hooked on the cross bar 27; the hook rod assembly is convenient for assembly and replacement, and the hook rod can be replaced according to the load requirements.

[0014] The hook rod assembly 100 includes a hook rod 1 3 and a hook rod 2 4 screwed with the hook rod 1 3. The hook rod 1 3 includes an upper hook body 31 and an internally threaded tube 32 arranged at the bottom of the upper hook body 31 and having an integral structure. The diameter of the hook rod 1 3 is larger than the diameter of the hook rod 2 4, so that the hook rod 2 4 can be screwed into the hook rod 1 3, which is convenient for screwing hook rods with different suspension functions. The hook rod 2 4 includes a lower hook body 41 and a screw rod 43 arranged at the top of the lower hook body 41 and having an integral structure. The screw rod 43 and the internally threaded tube 32 are screwed together. The screw rod 43 and the internally threaded tube 32 are fixed at the screwing place by a flange nut 42. In this way, the overall length of the hook rod assembly is fixed. The shapes of the upper hook body and the lower hook body can be replaced by screwing according to actual needs, and the directions can be the same direction or one left and one right, which is not limited.

[0015] The top of the landing rod 21 is provided with a connecting pipe 22, and a matching connecting pipe 23 corresponding to the connecting pipe 22 is provided on the bottom surface of the multi-rotor aircraft body 1. The connecting pipe 22 and the matching connecting pipe 23 are both provided with through holes 24, and the connecting pipe 22 is inserted into the matching connecting pipe 23, which are connected through two studs 25 at both ends, and fixing nuts 26 are installed at both ends of the two studs 25. The landing gear is assembled on the bottom surface of the fuselage, which is convenient for assembly and maintenance.

[0016] The working principle of the above structure is: the landing gear is inserted between the connecting pipe provided on the landing gear and the matching connecting pipe provided on the bottom surface of the fuselage, and fixed by studs and fixing nuts at both ends. A hook rod assembly is hooked on the cross bar provided between the landing rods, and the hook rod assembly can be assembled by screwing the hook rods one and two, and fixed by flange nuts after manual screwing. The hook rod assembly is hooked on the hanging hole opened on the cross bar.

[0017] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heavy-load rotorcraft, comprising a multi-rotor aircraft body, characterized in that: A landing gear is assembled on the bottom surface of the multi-rotor aircraft body, and the landing gear includes a landing rod arranged outwardly and a cross bar arranged between the landing rods and forming an integrated structure, and a hook rod assembly is hooked on the cross bar; the hook rod assembly includes a hook rod 1 and a hook rod 2 screwed and assembled with the hook rod 1, the hook rod 1 includes an upper hook body and an internally threaded tube arranged at the bottom end of the upper hook body and forming an integrated structure, the hook rod 2 includes a lower hook body and a screw arranged at the top end of the lower hook body and forming an integrated structure, and the screw and the internally threaded tube are screwed and installed for adjustment.

2. A heavy-load rotorcraft according to claim 1, characterized in that: The top ends of the landing rods are all provided with connecting pipes, and the bottom surface of the multi-rotor aircraft body is provided with matching connecting pipes corresponding to the connecting pipes.

3. A heavy-load rotorcraft according to claim 2, characterized in that: The connecting pipe and the matching connecting pipe are both provided with through holes, through which studs at both ends are penetrated and connected, and fixing nuts are installed at both ends of the studs at both ends.

4. The heavy-load rotorcraft according to claim 1, characterized in that: The cross bar is penetrated with a hanging hole.

5. The heavy-load rotorcraft according to claim 1, characterized in that: The threaded connection between the screw rod and the internal threaded pipe is fixed by a flange nut.

Images