Quick dismounting and mounting structure for unmanned aerial vehicle arm supporting rod

Abstract

The invention provides a quick disassembly and assembly structure for an unmanned aerial vehicle arm supporting rod, and relates to the technical field of unmanned aerial vehicle body structures. The quick disassembly and assembly structure comprises an arm, a supporting rod, a butt joint pipe, an insertion pipe and a fastening sleeve; the butt joint pipe comprises an end fixed to the end of the supporting rod. The butt joint pipe is sleeved with the inserting pipe, the inserting pipe is of an inner-outer double-pipe-body structure, an inserting cavity is formed between the inner pipe body and the outer pipe body, the end of the machine arm is inserted into the inserting cavity, and the fastening sleeve is arranged outside the outer pipe body in a sleeving mode. The quick disassembly and assembly structure has the beneficial effects that the quick disassembly and assembly structure is designed in a modular mode, the arm and the supporting rod are designed in a modular mode in advance, parts needing to be in butt joint and fixed are fixed to the two parts, and therefore the number of the parts of the arm and supporting rod connecting structure can be greatly reduced; moreover, the quick disassembly and assembly structure is convenient to disassemble, tool-free disassembly and assembly can be achieved, the disassembly and assembly time is greatly shortened, and the problems that most existing arm supporting rod structures are large in part number and low in assembly and disassembly efficiency are solved.

Description

Technical Field

[0001] The invention relates to the technical field of unmanned aerial vehicle body structures, and in particular to a quick disassembly and assembly structure of an arm support rod of an unmanned aerial vehicle. Background Art

[0002] In the existing UAV layout and structure, with the continuous rise of dual-tail-strut fixed-wing UAVs and vertical-takeoff fixed-wing composite layout UAVs, the connection between the machine arm and the tail strut rod is mostly connected by bolts and nuts. This connection method has a complex system structure, generally including docking ears, machine arms, struts, bolts, nuts, etc. The use steps are cumbersome and tools must be used. Tools must be used during disassembly and assembly, and the parts processing accuracy is high, requiring precise docking. At the same time, the disassembly and assembly time is long, time-consuming and labor-intensive.

[0003] During installation, the staff on both sides need to dock the machine arm and the support rod first, so that the ears on both sides can be docked, and at the same time, the bolts can pass through the holes on the docking ears on both sides, and tighten the bolts and nuts with a wrench to fix the machine arm and the support rod. When disassembling, the steps are opposite to the installation steps.

[0004] The existing machine arm support rod connection structure has the following problems:

[0005] 1. There are many parts constituting the docking position, and the structure is complex;

[0006] 2. Tools are needed to assist installation and removal:

[0007] 3. The installation and disassembly steps are rather complicated and require multiple people to work together, which is time-consuming and laborious. Summary of the invention

[0008] In view of this, the present invention provides a UAV arm support rod quick disassembly and assembly structure, including an arm, a support rod, a butt tube, a plug-in tube and a fastening sleeve;

[0009] The butt joint pipe comprises a first butt joint portion and a second butt joint portion, wherein the first butt joint portion is fixed to the end of the strut;

[0010] The plug-in tube comprises a connecting ring and an inner tube body and an outer tube body arranged relatively inside and outside, the ends of the inner tube body and the outer tube body are fixedly connected by the connecting ring, a plug-in cavity of a circular sleeve structure is formed between the outer wall of the inner tube body and the inner wall of the outer tube body, and the inner tube body is fixedly sleeved on the second docking portion;

[0011] The end of the machine arm is inserted into the insertion cavity; the fastening sleeve is arranged outside the outer tube body, and the fastening sleeve presses the outer tube body onto the outer wall of the machine arm.

[0012] Furthermore, the fastening sleeve is a threaded sleeve, the outer wall of the outer tube body is provided with connecting threads, and the fastening sleeve is threadedly connected to the outer tube body.

[0013] Furthermore, the first docking portion and the second docking portion are both circular tubes, and the first docking portion and the second docking portion are coaxially arranged.

[0014] Furthermore, the butt joint pipe further comprises a fixed ring piece, and the first butt joint portion and the second butt joint portion are respectively connected to the front and back surfaces of the fixed ring piece.

[0015] Furthermore, the outer diameter of the first docking portion is larger than the outer diameter of the second docking portion.

[0016] Furthermore, the outer wall of the support rod is also provided with a limit stopper.

[0017] Furthermore, a clamping ring is provided at the end of the fastening sleeve, the inner diameter of the clamping ring is smaller than the inner diameter of the fastening sleeve, and the clamping ring is slidably sleeved on the outer wall of the support rod.

[0018] Furthermore, the end of the clamping ring is limited between the limiting baffle and the fixing ring.

[0019] Furthermore, the outer wall of the outer tube body is a truncated cone structure, and the outer diameter of the outer tube body changes evenly from thick to thin along the direction extending from the machine arm to the strut.

[0020] Furthermore, the machine arm and the strut are coaxially arranged, the machine arm is connected to a wing, and the strut is connected to a tail.

[0021] The beneficial effects of the quick disassembly and assembly structure of the arm strut of an unmanned aerial vehicle of the present invention are as follows: the quick disassembly and assembly structure comprises an arm, a strut, a butt joint tube, a plug-in tube and a fastening sleeve; the arm is connected to a wing, and the strut is connected to a tail wing; the butt joint tube comprises an end portion fixed to the end portion of the strut; the plug-in tube is sleeved on the butt joint tube, and the plug-in tube is an inner and outer double tube structure, and a plug-in cavity is formed between the inner and outer double tubes, and the end portion of the arm is inserted into the plug-in cavity, the fastening sleeve is sleeved outside the outer tube body, and the fastening sleeve presses the outer tube body against the outer wall of the arm through the outer tube body, thereby firmly connecting the arm connected to the wing and the strut connected to the tail wing together.

[0022] The quick disassembly and assembly structure adopts modular design, and the two major components of the machine arm and the strut are modularly designed in advance, and the parts that need to be connected and fixed are fixed to the two major components, which can greatly reduce the number of parts of the machine arm strut connection structure; and the quick disassembly and assembly structure is easy to disassemble, and the positioning requirements during the installation process are low. It can also achieve tool-free disassembly and assembly, greatly reducing the disassembly and assembly time, reducing the preparation time for picking up and placing tools, reducing the number of operators, and improving the disassembly and assembly efficiency, thereby significantly improving the dispatch efficiency of the UAV, and solving the problems of the large number of parts and low installation and disassembly efficiency of most existing machine arm strut structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a first overall structural schematic diagram of a quick disassembly and assembly structure of an unmanned aerial vehicle arm support rod according to an embodiment of the present invention.

[0024] Figure 2 It is a second overall structural schematic diagram of a UAV arm support rod quick disassembly and assembly structure according to an embodiment of the present invention.

[0025] Figure 3 The present invention is a schematic structural diagram of a plug-in tube of a quick disassembly structure of a drone arm support rod according to an embodiment of the present invention.

[0026] Figure 4 The present invention is a schematic structural diagram of a butt joint pipe of a UAV arm support rod quick disassembly structure according to an embodiment of the present invention.

[0027] Figure 5 It is a partial cross-sectional view of a quick disassembly and assembly structure of a drone arm support rod when it is locked and connected according to an embodiment of the present invention.

[0028] In the above figure: 1-wing, 2-arm, 3-plug-in tube, 31-inner tube body, 32-outer tube body, 33-connecting ring, 4-butt tube, 41-first butt joint part, 42-second butt joint part, 43-fixing ring piece, 5-strut, 6-fastening sleeve, 61-clamping ring, 7-limiting baffle, 8-tail wing. DETAILED DESCRIPTION

[0029] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0030] Please refer to Figures 1 to 5 The invention discloses a quick disassembly structure of a drone arm strut, comprising an arm 2, a strut 5, a butt joint pipe 4, a plug-in pipe 3 and a fastening sleeve 6. In this embodiment, the arm 2 and the strut 5 are both hollow round tube structures. The arm 2 is connected to a wing 1, and the strut 5 is connected to a tail 8.

[0031] The butt joint pipe 4 includes a first butt joint portion 41 and a second butt joint portion, both of which are circular tube structures. The first butt joint portion 41 and the second butt joint portion, the first butt joint portion 41 is fixed to the end of the support rod 5; in this embodiment, the first butt joint portion 41 is inserted into the end of the support rod 5, and the outer wall of the first butt joint portion 41 and the inner wall of the support rod 5 are connected by bonding.

[0032] The plug-in tube 3 is a double-layer tube structure, comprising a connecting ring 33 and an inner tube body 31 and an outer tube body 32 arranged relatively inside and outside, the ends of the inner tube body 31 and the outer tube body 32 are fixedly connected by the connecting ring 33, the inner tube body 31, the outer tube body 32 and the connecting ring 33 are an integrated structure, and a plug-in cavity of a circular sleeve structure is formed between the outer wall of the inner tube body 31 and the inner wall of the outer tube body 32, and the inner tube body 31 is fixedly sleeved on the second docking portion; thereby, the plug-in tube 3 is fixed on the docking tube 4.

[0033] The end of the arm 2 is inserted into the plug-in cavity, wherein the size of the end of the arm 2 is substantially equal to the size of the plug-in cavity, thereby ensuring that the arm 2 can be inserted into the plug-in cavity. In this embodiment, the arm 2 and the support rod 5 are coaxially arranged.

[0034] The fastening sleeve 6 is sleeved on the outside of the outer tube body 32, and the fastening sleeve 6 presses the outer tube body 32 against the outer wall of the arm 2, so that the inner tube body 31 and the outer tube body 32 can clamp the end of the arm 2 under the pressing action of the fastening sleeve 6, so that the arm 2 and the strut 5 are connected, thereby completing the connection between the wing 1 and the tail wing 8.

[0035] The quick disassembly and assembly structure adopts modular design, and the two major components of the arm and the strut are modularly designed in advance, and the parts that need to be connected and fixed are fixed to the two major components, which can greatly reduce the number of parts of the arm strut connection structure; and the quick disassembly and assembly structure is easy to disassemble, and the positioning requirements during the installation process are low, and tool-free disassembly and assembly can be achieved, which greatly reduces the disassembly and assembly time, reduces the preparation time for picking up and placing tools, reduces the number of operators, and improves the disassembly and assembly efficiency, thereby significantly improving the dispatch efficiency of the UAV, and solving the problems of the large number of parts and low installation and disassembly efficiency of most existing arm strut structures.

[0036] In a preferred embodiment, the fastening sleeve 6 is a threaded sleeve, the outer wall of the outer tube body 32 is provided with connecting threads, and the fastening sleeve 6 is threadedly connected to the outer tube body 32 .

[0037] In a preferred embodiment, the first docking portion 41 and the second docking portion are coaxially arranged. The docking tube further includes a fixed ring piece 43, the outer diameter of the first docking portion 41 is larger than the outer diameter of the second docking portion 41, the first docking portion 41 and the second docking portion 42 are respectively connected to the front and back sides of the fixed ring piece 43, and the fixed ring piece 43 is used to connect the first docking portion 41 and the second docking portion 42 of different thicknesses into an integral structure.

[0038] In a preferred embodiment, the outer wall of the support rod 5 is further provided with a limiting stopper 7 with an annular protruding structure, and the limiting stopper 7 is used to limit the fastening sleeve 6 to a position near the end of the support rod 5 .

[0039] In a preferred embodiment, a clamping ring 61 is provided at the end of the fastening sleeve 6, and the inner diameter of the clamping ring 61 is smaller than the inner diameter of the fastening sleeve 6, and the inner diameter of the clamping ring 61 is slightly larger than the outer diameter of the strut 5, so that the clamping ring 61 can be slidably sleeved on the outer wall of the strut 5. The end of the clamping ring 61 is limited between the limit stopper 7 and the fixed ring piece 43. The outer wall of the outer tube body 32 is a frustum structure, and the outer diameter of the outer tube body 32 changes uniformly from thick to thin along the direction extending from the machine arm 2 to the strut, that is, when the fastening sleeve 6 is threadedly tightened on the outer tube body 32, the fastening sleeve 6 provides a radial extrusion force on the outer tube body 32, which can ensure that the size of the plug-in cavity shrinks, so that the inner and outer tube bodies of the plug-in tube 3 clamp and fix the machine arm 2. In addition, during the process of threading the fastening sleeve 6, the inner diameter of the end of the fastening sleeve 6 away from the clamping ring 61 expands, and the inner diameter of the clamping ring 61 of the fastening sleeve 6 shrinks under the action of the expansion force, so that the clamping ring 61 can press the outer wall of the strut 5, thereby shrinking the inner diameter of the strut 5 to clamp the first connecting part 41, further improving the connection strength between the machine arm 2 and the strut 5.

[0040] In this document, the directional words such as front, back, top, and bottom are defined by the positions of the components in the drawings and the positions of the components relative to each other, and are only for the sake of clarity and convenience in expressing the technical solution. It should be understood that the use of the directional words should not limit the scope of protection claimed in this application.

[0041] In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A quick disassembly and assembly structure of an unmanned aerial vehicle arm support rod, characterized in that: It includes a machine arm, a support rod, a butt tube, a plug-in tube and a fastening sleeve; The butt joint pipe comprises a first butt joint portion and a second butt joint portion, wherein the first butt joint portion is fixed to the end of the strut; The plug-in tube comprises a connecting ring and an inner tube body and an outer tube body arranged relatively inside and outside, the ends of the inner tube body and the outer tube body are fixedly connected by the connecting ring, a plug-in cavity of a circular sleeve structure is formed between the outer wall of the inner tube body and the inner wall of the outer tube body, and the inner tube body is fixedly sleeved on the second docking portion; The end of the machine arm is inserted into the insertion cavity; the fastening sleeve is arranged outside the outer tube body, and the fastening sleeve presses the outer tube body onto the outer wall of the machine arm.

2. The UAV arm support rod quick disassembly and assembly structure according to claim 1 is characterized in that: The fastening sleeve is a threaded sleeve, the outer wall of the outer tube body is provided with connecting threads, and the fastening sleeve is threadedly connected to the outer tube body.

3. The UAV arm support rod quick disassembly and assembly structure according to claim 1 is characterized in that: The first butt joint portion and the second butt joint portion are both circular tubes, and the first butt joint portion and the second butt joint portion are coaxially arranged.

4. The UAV arm support rod quick disassembly and assembly structure according to claim 1 is characterized in that: The butt joint pipe also includes a fixed ring piece, and the first butt joint portion and the second butt joint portion are respectively connected to the front and back surfaces of the fixed ring piece.

5. The UAV arm support rod quick disassembly and assembly structure according to claim 1 is characterized in that: The outer diameter of the first docking portion is greater than the outer diameter of the second docking portion.

6. The UAV arm support rod quick disassembly and assembly structure according to claim 4, characterized in that: The outer wall of the support rod is also provided with a limiting blocking piece.

7. The UAV arm support rod quick disassembly and assembly structure according to claim 6, characterized in that: A clamping ring is provided at the end of the fastening sleeve, the inner diameter of the clamping ring is smaller than the inner diameter of the fastening sleeve, and the clamping ring is slidably sleeved on the outer wall of the support rod.

8. The UAV arm support rod quick disassembly and assembly structure according to claim 7, characterized in that: The end of the clamping ring is limited between the limiting baffle and the fixing ring.

9. The UAV arm support rod quick disassembly and assembly structure according to claim 2, characterized in that: The outer wall of the outer tube is a truncated cone structure, and the outer diameter of the outer tube changes evenly from thick to thin along the direction extending from the machine arm to the strut.

10. The UAV arm support rod quick disassembly and assembly structure according to claim 1, characterized in that: The machine arm and the strut are coaxially arranged, the machine arm is connected with a wing, and the strut is connected with a tail.

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