Three-way assembly structure of unmanned aerial vehicle

Abstract

A three-way assembly structure of an unmanned aerial vehicle comprises a carbon fiber pipe, an inner supporting pipe fitting, an outer supporting pipe fitting, a screw and a turning pipe fitting, a radial through hole is formed in the installation position of the carbon fiber pipe, the outer diameter of the inner supporting pipe fitting is matched with the inner diameter of the carbon fiber pipe, the inner supporting pipe fitting is inserted into the carbon fiber pipe, and a first installation screw hole is coaxially formed in the position, corresponding to the radial through hole, of the inner supporting pipe fitting; the inner diameter of the outer supporting pipe fitting is matched with the outer diameter of the carbon fiber pipe, the outer supporting pipe fitting is arranged on the peripheral face of the carbon fiber pipe in a sleeving mode, and a second installation screw hole is coaxially formed in the position, opposite to the radial through hole, of the outer supporting pipe fitting. The turning pipe fitting comprises a lap joint end and an inserting end, the lap joint end is provided with a through groove matched with the shape of the peripheral face of the outer supporting pipe fitting, the inserting end is provided with an inserting groove matched with the carbon fiber pipe in an inserting mode, the inserting groove is provided with a detachable fastener for loosening and tightening the carbon fiber pipe, and a third mounting screw hole is coaxially formed in the position, corresponding to the radial through hole, of the bottom face of the inserting groove. And the screw penetrates through the radial through hole and the threads of the first, second and third mounting screw holes to be connected and fixed.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a three-way component structure for UAVs. Background Technology

[0002] The drone is equipped with several carbon fiber tubes as a framework, such as forming the landing gear. During the assembly of the carbon fiber tubes, due to the tube structure itself, it is necessary to install connecting parts such as steering components and tee pipes at the corners to fix two carbon fiber tubes together at a certain angle.

[0003] The problem with the existing technology is that during the assembly of the tee fitting with the carbon fiber tube, it is mainly sleeved on the main pipe and the branch pipe is inserted into the tee fitting and locked. This causes stress to concentrate at the assembly point of the main pipe. Since the carbon fiber tube is a hollow tube structure, stress cracks often appear at the assembly point, resulting in safety hazards.

[0004] Therefore, it is necessary to improve the design of the tee fitting to avoid stress concentration and protect the integrity of the carbon fiber tube structure at the connection. Utility Model Content

[0005] To address the shortcomings of the aforementioned technologies, this invention provides a three-way component structure for unmanned aerial vehicles (UAVs).

[0006] The technical solution of this utility model is as follows: A three-way component structure for a drone includes a carbon fiber tube, an inner support tube, an outer support tube, screws, and a deflector tube. The carbon fiber tube has a radial through hole at the installation position. The outer diameter of the inner support tube is adapted to the inner diameter of the carbon fiber tube and is inserted into the carbon fiber tube. The inner support tube has a first mounting screw hole coaxially provided at the position corresponding to the radial through hole. The inner diameter of the outer support tube is adapted to the outer diameter of the carbon fiber tube and is sleeved on the outer circumferential surface of the carbon fiber tube. The outer support tube has a second mounting screw hole coaxially provided at the position corresponding to the radial through hole.

[0007] The deflecting pipe fitting includes an overlapping end and a plug end. The overlapping end is provided with an intersecting groove that matches the shape of the outer circumferential surface of the outer support pipe fitting. The plug end is provided with a slot that is fitted with a carbon fiber tube. A fastener for loosening and tightening the carbon fiber tube is provided at the slot. A third mounting screw hole is coaxially provided on the bottom surface of the slot corresponding to the radial through hole. The screw passes through the first mounting screw hole, the second mounting screw hole, the radial through hole, and the third mounting screw hole for threaded connection and fixation.

[0008] A further feature of this invention is that, on the radially opposite side of the first mounting screw hole, the inner support tube has a fourth mounting screw hole and a threaded pin. The fourth mounting screw hole penetrates the inner support tube. The threaded pin includes a flat end and an internal hexagonal end, and is inserted into the fourth mounting screw hole for threaded engagement. The internal hexagonal end of the threaded pin faces the first mounting screw hole, and the flat end of the other end abuts against the carbon fiber tube in the spiral direction.

[0009] A further feature of this invention is that a thickened portion is provided on the inner tube of the inner support tube at the first mounting screw hole and the fourth mounting screw hole, and the thickened portion is provided with a wire hole along the axial direction of the inner support tube.

[0010] A further feature of this invention is that the plug end is provided with an expansion groove extending into the slot, and screw seats are symmetrically provided on both sides of the expansion groove on the plug end. Each screw seat is provided with a fifth mounting screw hole with an axial direction perpendicular to the expansion groove. The fastener includes an adjusting screw, which is threadedly connected to the screw seats on both sides of the expansion groove, driving the screw seats to move closer or further apart.

[0011] A further feature of this invention is that the plug end is provided with an expansion groove extending into the slot, and the fastener includes a clamp sleeved on the plug end.

[0012] The beneficial effects of this utility model are as follows: The design of the inner support pipe, combined with the inner and outer sleeves of the carbon fiber tube, provides support, dispersing localized stress in the carbon fiber tube and effectively avoiding stress concentration. Furthermore, the splicing arrangement of the deflecting pipe conceals the first mounting screw hole, the second mounting screw hole, the radial through hole, and the third mounting screw hole, preventing interference at the connection point and creating a unified, more aesthetically pleasing structure.

[0013] The threaded pin's structural design allows it to be locked in place even in areas without radial through holes, thanks to the pressure of the pin against the carbon fiber tube. This further prevents axial loosening of the tee assembly. The threaded pin is operated first through the radial through hole, then the screw is used to seal the radial through hole; disassembly is the reverse process.

[0014] The radial size of the plug end is controlled by the expansion groove to fit the plugged-in carbon fiber tube. The expansion groove is then tightened by adjusting screws, clamps and other fastening methods to lock the carbon fiber tube in place, thus completing the detachable fixation. Attached Figure Description

[0015] Figure 1 The structure of this utility model embodiment Figure 1 ;

[0016] Figure 2 The structure of this utility model embodiment Figure 2 ;

[0017] Figure 3 The structure of this utility model embodiment Figure 3 ;

[0018] Figure 4 The structure of this utility model embodiment Figure 4 .

[0019] Among them, 1-carbon fiber tube, 11-radial through hole, 2-inner support tube, 21-first mounting screw hole, 22-fourth mounting screw hole, 23-threaded pin, 24-thickened part, 3-outer support tube, 31-second mounting screw hole, 4-screw, 5-reversing tube, 51-intersecting groove, 52-slot, 53-third mounting screw hole, 54-expansion groove, 56-adjusting screw, 57-fifth mounting screw hole.

[0020] To better illustrate this embodiment, some parts in the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the actual size of the product. Furthermore, the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Detailed Implementation

[0021] To make the technical solution and advantages of this application clearer, the technical solution of this application will be described in a clearer and more complete manner below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some embodiments of this application, and are only used to explain this application, not to limit this application. It should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings. Other related parts can be referred to the general design. In the absence of conflict, the embodiments and technical features in the embodiments of this application can be combined with each other to obtain new embodiments.

[0022] like Figure 1-4 As shown, a three-way component structure for a drone includes a carbon fiber tube 1, an inner support tube 2, an outer support tube 3, a screw 4, and a deflector tube 5. The carbon fiber tube 1 has a radial through hole 11 at the installation position. The outer diameter of the inner support tube 2 is adapted to the inner diameter of the carbon fiber tube 1 and is inserted into the carbon fiber tube 1. The inner support tube 2 has a first mounting screw hole 21 coaxially provided at the position corresponding to the radial through hole 11. The inner diameter of the outer support tube 3 is adapted to the outer diameter of the carbon fiber tube 1 and is sleeved on the outer circumferential surface of the carbon fiber tube 1. The outer support tube 3 has a second mounting screw hole 31 coaxially provided at the position corresponding to the radial through hole 11.

[0023] The deflecting pipe fitting 5 includes an overlapping end and a plug end. The overlapping end is provided with an intersecting groove 51 that matches the shape of the outer circumferential surface of the outer support pipe fitting 3. The plug end is provided with a slot 52 that is inserted into the carbon fiber tube 1. A fastener for loosening and tightening the carbon fiber tube 1 is provided at the slot 52. A third mounting screw hole 53 is coaxially provided on the bottom surface of the slot 52 corresponding to the radial through hole 11. The screw 4 is fixed by threaded connection through the first mounting screw hole 21, the second mounting screw hole 31, the radial through hole 11, and the third mounting screw hole 53.

[0024] The inner support tube 2 is provided with a fourth mounting screw hole 22 and a threaded pin 23 on the radially opposite side of the first mounting screw hole 21. The fourth mounting screw hole 22 penetrates the inner support. The threaded pin 23 includes a flat end and an internal hexagonal end, and is inserted into the fourth mounting screw hole 22 for threaded engagement. The internal hexagonal end of the threaded pin 23 faces the first mounting screw hole 21, and the flat end of the other end abuts against the carbon fiber tube 1 in the spiral direction.

[0025] On the inner tube of the inner support tube 2, a thickened portion 24 is provided at the first mounting screw hole 21 and the fourth mounting screw hole 22. The thickened portion 24 is provided with a wire hole along the axial direction of the inner support tube 2.

[0026] The plug end is provided with an expansion groove 54 extending into the slot 52. Screw seats 55 are symmetrically arranged on both sides of the expansion groove 54. Each screw seat 55 is provided with a fifth mounting screw hole 57 whose axial direction is perpendicular to the expansion groove 54. The fastener includes an adjusting screw 56, which is threadedly connected to the screw seats 55 on both sides of the expansion groove 54, driving the screw seats 55 to move closer or further apart.

[0027] The plug end is provided with an expansion groove 54 extending through the slot 52, and the fastener includes a clamp sleeved on the plug end.

[0028] The beneficial effects of this utility model are as follows: The design of the inner support pipe 2, combined with the inner and outer sleeves of the carbon fiber tube 1, provides support, dispersing local stress in the carbon fiber tube 1 and effectively avoiding stress concentration. Furthermore, the splicing arrangement of the deflecting pipe 5 conceals the first mounting screw hole 21, the second mounting screw hole 31, the radial through hole 11, and the third mounting screw hole 53, preventing interference at the connection points and creating a unified, more aesthetically pleasing structure.

[0029] Through the structural design of the threaded pin 23, its flat end abuts against the carbon fiber tube 1, allowing the part without a radial through hole 11 to be locked by the pressure of the threaded pin 23, further preventing axial loosening of the tee assembly. First, the threaded pin 23 is operated through the radial through hole 11, and then the screw 4 is used to close the radial through hole 11. The process is reversed during disassembly.

[0030] The radial size of the plug end is controlled by the expansion groove 54 to fit the plugged-in carbon fiber tube 1. The expansion groove 54 is then tightened by adjusting screws 56, clamps, and other fastening methods to lock the carbon fiber tube 1, thus completing the detachable fixing.

[0031] The technical solution of this application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. Those skilled in the art should understand that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this application.

Claims

1. A three-way component structure for an unmanned aerial vehicle (UAV), characterized in that: The device includes a carbon fiber tube, an inner support fitting, an outer support fitting, screws, and a deflector fitting. The carbon fiber tube has a radial through hole at the installation position. The outer diameter of the inner support fitting is adapted to the inner diameter of the carbon fiber tube and is inserted into the carbon fiber tube. The inner support fitting has a first mounting screw hole coaxially provided at the position corresponding to the radial through hole. The inner diameter of the outer support fitting is adapted to the outer diameter of the carbon fiber tube and is sleeved on the outer circumferential surface of the carbon fiber tube. The outer support fitting has a second mounting screw hole coaxially provided at the position corresponding to the radial through hole. The deflecting pipe fitting includes an overlapping end and a plug end. The overlapping end is provided with an intersecting groove that matches the shape of the outer circumferential surface of the outer support pipe fitting. The plug end is provided with a slot that is fitted with a carbon fiber tube. A fastener for loosening and tightening the carbon fiber tube is provided at the slot. A third mounting screw hole is coaxially provided on the bottom surface of the slot corresponding to the radial through hole. The screw passes through the first mounting screw hole, the second mounting screw hole, the radial through hole, and the third mounting screw hole for threaded connection and fixation.

2. The three-way component structure of a UAV according to claim 1, characterized in that: The inner support tube has a fourth mounting screw hole and a threaded pin mirrored on the radial side opposite to the first mounting screw hole. The fourth mounting screw hole penetrates the inner support tube. The threaded pin includes a flat end and an internal hexagonal end, and is inserted into the fourth mounting screw hole for threaded engagement. The internal hexagonal end of the threaded pin faces the first mounting screw hole, and the flat end of the other end abuts against the carbon fiber tube in the spiral direction.

3. The three-way component structure of a UAV according to claim 2, characterized in that: The inner tube of the inner support tube is provided with a thickened part at the first mounting screw hole and the fourth mounting screw hole, and the thickened part is provided with a wire hole along the axial direction of the inner support tube.

4. A three-way component structure for a UAV according to any one of claims 1-3, characterized in that: The plug end is provided with an expansion groove that extends into the slot. Screw seats are symmetrically arranged on both sides of the expansion groove. Each screw seat is provided with a fifth mounting screw hole that is axially perpendicular to the expansion groove. The fastener includes an adjusting screw, which is threadedly connected to the screw seats on both sides of the expansion groove, driving the screw seats to move closer or further apart.

5. A three-way component structure for a UAV according to any one of claims 1-3, characterized in that: The plug end is provided with an expansion groove that extends through to the slot, and the fastener includes a clamp fitted onto the plug end.

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