Tail boom for unmanned helicopter

Abstract

The utility model discloses an unmanned helicopter tail part connecting fastening frame belongs to unmanned helicopter technical field. A kind of unmanned helicopter tail part connecting fastening frame, including tail part frame body;First fastening sleeve, the first end of the tail part frame body is sleeved;Second fastening sleeve, the rear side of the tail part frame body is provided, and there is spacing between the first fastening sleeve;First connector, the front end of the first fastening sleeve is installed, for connecting cabin frame body;And second connector, the lower end of the tail part frame body is provided, for connecting body chassis;Wherein, the first fastening sleeve and second fastening sleeve all include two oppositely arranged U-shaped frames, and are connected by fastening bolt, for adjusting the fastening degree of the tail part frame body;The port of the U-shaped frame is provided with abutting frame, for after installation with body inner cavity each other abutting tightly, and realize stable connection by fixed bolt. It can realize tail part frame body and cabin frame body each other abutting tightly make frame body more fastening.

Description

Technical Field

[0001] This utility model belongs to the field of unmanned helicopter technology, and more specifically, relates to a tail connection fastening frame for unmanned helicopters. Background Technology

[0002] As a common type of unmanned aerial vehicle (UAV), unmanned helicopters are widely used in aerial photography, surveying and mapping, logistics transportation with intelligent cargo compartments, emergency rescue, and agricultural and forestry spraying due to their advantages such as vertical take-off and landing, hovering, and low cost.

[0003] Traditional unmanned helicopters typically consist of a unibody fuselage, drive unit, main rotor, tail rotor, and landing gear. The fuselage is designed as a split structure, comprising the cabin and tail section, which are bolted together. However, current methods often connect the tail section to the cabin using bolts, without proper clamping. This lack of interlocking allows the bolts to loosen under prolonged vibration, leading to malfunctions. Utility Model Content

[0004] This utility model provides a tail connection fastening frame for unmanned helicopters, which can make the tail frame and the cabin frame fit together more securely.

[0005] This utility model discloses a tail-end connection fastening frame for an unmanned helicopter, comprising a tail frame body; a first fastening sleeve fitted onto the front end of the tail frame body; a second fastening sleeve disposed on the rear side of the tail frame body, with a gap between it and the first fastening sleeve; a first connector installed on the front end of the first fastening sleeve for connecting to the cabin frame body; and a second connector disposed at the lower end of the tail frame body for connecting to the fuselage base frame; wherein, both the first and second fastening sleeves include two U-shaped frames arranged opposite each other, connected by fastening bolts, for adjusting the tightness of the tail frame body; a clamping frame is provided at the end of the U-shaped frame for abutting against the internal cavity of the fuselage body after installation, and a stable connection is achieved by fixing bolts.

[0006] As a further improvement of this utility model, a first abutting frame is provided at the U-shaped frame port of the first fastening sleeve, and the first abutting frame is fastened to the inner cavity of the machine body by a first fixing bolt.

[0007] As a further improvement of this utility model, a second abutting frame is provided at the U-shaped frame port of the second fastening sleeve, and the second abutting frame is fastened to the inner cavity of the machine body by a second fixing bolt.

[0008] As a further improvement of this utility model, the clamping frames of the first fastening sleeve and the second fastening sleeve are arranged crosswise and perpendicular to each other, so as to achieve clamping of the tail frame in four directions.

[0009] As a further improvement of this utility model, the first fastening sleeve also includes a fixing rod, the upper end of which is provided with a limiting cavity for matching and connecting with the wall of the tail frame.

[0010] As a further improvement of this utility model, the tail frame includes a rod body, and a tail sleeve, a tail rudder and a tail fin arranged sequentially along the rod body from the first end to the last end; the tail rudder is installed on the side end of the tail sleeve, and a rudder frame is horizontally arranged on its upper part.

[0011] As a further improvement of this utility model, the tail rudder is fixedly connected to the tail sleeve, with a rudder mount at the upper end and a signal light at the lower end.

[0012] As a further improvement of this utility model, the tail fin includes a servo motor and a tail fin plate connected to the output end of the servo motor for controlling the rotation of the tail fin plate.

[0013] As a further improvement of this utility model, two first connectors are symmetrically arranged, and each connector has a first connecting cavity at its end for fixed connection with the cabin connecting frame.

[0014] As a further improvement of this utility model, two second connectors are symmetrically arranged, and a second connecting cavity is opened at the lower end of each connector for fixed connection with the machine body frame via a connecting rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] By using the U-shaped frame structure of the first and second fastening sleeves and the abutment frame set at their ports, along with the use of fastening bolts and fixing bolts, adjustable fastening of the tail frame and multi-point abutment connection with the internal cavity of the aircraft are achieved, effectively preventing the connectors from loosening under long-term vibration and improving the reliability and safety of the tail connection of the unmanned helicopter. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0019] Figure 3 This utility model Figure 1 Enlarged structural diagram at point B;

[0020] Figure 4 This utility model Figure 1Enlarged structural diagram at point C;

[0021] Figure 5 This is a side view of the structural plan of this utility model;

[0022] Figure 6 This is a three-dimensional structural diagram of the rear side of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] Tail frame 1, tail sleeve 11, tail rudder 12, signal light 121, rudder mount 13, rudder plate 131, tail fin 14, servo motor 141, tail fin plate 142, first fastening sleeve 2, first fastening bolt 21, first clamping frame 22, first fixing bolt 23, fixing rod 24, limiting cavity 241, second fastening sleeve 3, second fastening bolt 31, second clamping frame 32, second fixing bolt 33, first connector 4, first connecting cavity 41, second connector 5, second connecting cavity 51. Detailed Implementation

[0025] Specific Implementation Example 1: Please refer to Figures 1-6 A tail-end fastening bracket for an unmanned helicopter includes a tail frame 1, a first fastening sleeve 2, a second fastening sleeve 3, a first connector 4, and a second connector 5. The first fastening sleeve 2 is fitted onto the front end of the tail frame 1, and multiple second fastening sleeves 3 are located on the rear side of the tail frame 1. In this embodiment, two second fastening sleeves 3 are arranged sequentially behind the first fastening sleeves 2, with a gap between the first fastening sleeve 2 and the two second fastening sleeves 3. The first connector 4 is installed on the front end of the first fastening sleeve 2 and is fixedly connected to the two side walls of the front end of the tail frame 1. The second connector 5 is located on the rear side of the second fastening sleeve 4 and at the lower end of the tail frame 1, facilitating a fixed connection between the second connector 5 and the helicopter fuselage frame via a connecting rod.

[0026] Specifically, the tail assembly 1 includes a stick, a tail sleeve 11, a tail rudder 12, a rudder mount 13, and a tail fin 14. The tail sleeve 11 is fitted onto the end of the stick, and in this embodiment, the tail sleeve 11 is fixedly connected to the stick by riveting. The tail rudder 12 is located on one side of the tail sleeve 11 and is fixedly connected to the middle of the side end of the tail sleeve 11. The upper end of the tail rudder 12 is horizontally provided with the rudder mount 13, and both sides of the rudder mount 13 are vertically provided with rudder plates 131, which are fixedly connected to the rudder mount 13. The lower end of the tail rudder 12 is provided with a signal light 121, which is used for flight warning. The tail fin 14 is located at the end of the tail sleeve 11 and is positioned on the other side facing the tail rudder 12. The tail fin 14 includes a servo motor 141. The output end of the servo motor 141 is connected to a rotating rod. The head of the rotating rod is fixedly connected to the tail fin plate 142 so that the rotating rod can be controlled to rotate by the servo motor 141 and drive the tail fin plate 142 to rotate.

[0027] Specifically, the first fastening sleeve 2 includes two U-shaped frames arranged opposite each other. The two opposing U-shaped frames are connected and fastened by a first fastening bolt 21, and the tightness of the tail frame 1 can be adjusted by adjusting the first fastening sleeve 2. Each of the two opposing U-shaped frames has a corresponding first abutment frame 22 at its end. One end of the first abutment frame 22 is fixedly connected to the U-shaped frame end, and the other end of the first abutment frame 22 abuts against the internal cavity of the machine after installation. The first abutment frame 22 and the internal cavity of the machine are fastened together by a first fixing bolt 23 to achieve a stable connection between the first abutment frame 22 and the internal cavity of the machine. A fixing rod 24 is provided between two opposing U-shaped frames, and the fixing rod 24 is located at the upper end of the first fastening sleeve 2. A limiting cavity 241 is formed between the two screw caps at the upper end of the fixing rod 24. The walls of the tail frame 1 of the limiting cavity 241 are matched with each other so as to fix the first fastening sleeve 2 and the tail frame 1 through the limiting cavity 241 at the upper end of the fixing rod 24.

[0028] Specifically, the second fastening sleeve 3 also includes two opposing U-shaped frames, which are connected and fastened by a second fastening bolt 31. The tightness of the tail frame 1 can be adjusted by adjusting the second fastening sleeve 2. Each of the two opposing U-shaped frames has a corresponding second abutment frame 32 at its end. One end of the second abutment frame 32 is fixedly connected to the U-shaped frame end, and the other end of the second abutment frame 32 abuts against the internal cavity of the machine after installation. The second abutment frame 32 is fastened to the internal cavity of the machine by a second fixing bolt 33 to achieve a stable connection between the second abutment frame 22 and the internal cavity. It should be noted that the first abutment frame 22 and the second abutment frame 32 of the first fastening sleeve 2 and the second fastening sleeve 3 are arranged intersectingly and perpendicularly to each other, so that the first fastening sleeve 2 and the second fastening sleeve 3 abut against each other in four directions within the tail frame 1.

[0029] Specifically, the first connector 4 is fixedly connected to the rod body of the tail frame 1. In this embodiment, two first connectors 4 are symmetrically arranged. The head end of the first connector 4 is provided with a first connecting cavity 41, which can be used to fix the connecting frame of the machine body.

[0030] Specifically, the second connector 5 is disposed on the lower side of the rod body of the tail frame 1. In this embodiment, there are two second connectors 5, which are abutted against each other. The lower end of the second connector 5 is provided with a second connecting cavity 51, which can be fixedly connected to the base frame at the lower end of the body through a connecting rod.

[0031] Working principle:

[0032] The first and second fastening sleeves are respectively fitted onto the front and rear ends of the tail frame. Both of them use two U-shaped frames arranged opposite each other and connected by fastening bolts, which can adjust the tightness of the tail frame. The clamping frames at the ends of the U-shaped frames (such as the first clamping frame and the second clamping frame) clamp against each other with the internal cavity of the engine after installation and achieve a stable connection through fixing bolts, thereby forming a two-way or multi-way clamping between the tail frame and the engine room frame, enhancing the stability of the overall structure.

Claims

1. A tail-mounted fastening bracket for an unmanned helicopter, characterized in that: Including the tail section frame (1); The first fastening sleeve (2) is fitted onto the front end of the tail frame (1); The second fastening sleeve (3) is located on the rear side of the tail frame (1) and there is a gap between it and the first fastening sleeve (2); A first connector (4) is installed at the front end of the first fastening sleeve (2) for connecting the cabin frame; and The second connector (5) is located at the lower end of the tail frame (1) and is used to connect to the machine body base frame; The first fastening sleeve (2) and the second fastening sleeve (3) each include two U-shaped frames arranged opposite each other and connected by fastening bolts, which are used to adjust the degree of fastening of the tail frame (1). The U-shaped frame is equipped with a clamping bracket at its port, which is used to clamp the frame against the internal cavity of the machine after installation and to achieve a stable connection through a fixing bolt.

2. The tail connection fastening bracket for an unmanned helicopter according to claim 1, characterized in that: The first fastening sleeve (2) has a first abutting frame (22) at the U-shaped frame port, and the first abutting frame (22) is fastened to the inner cavity of the machine body by a first fixing bolt (23).

3. The tail connection fastening bracket for an unmanned helicopter according to claim 1, characterized in that: The second fastening sleeve (3) has a second abutting frame (32) at the U-shaped frame port, and the second abutting frame (32) is fastened to the inner cavity of the machine body by a second fixing bolt (33).

4. The tail connection fastening bracket for an unmanned helicopter according to claim 1, characterized in that: The first fastening sleeve (2) and the second fastening sleeve (3) are arranged crosswise and perpendicular to each other to achieve clamping of the tail frame (1) in four directions.

5. The tail connection fastening bracket for an unmanned helicopter according to claim 1, characterized in that: The first fastening sleeve (2) also includes a fixing rod (24), the upper end of which is provided with a limiting cavity (241) for matching and connecting with the wall of the tail frame (1).

6. The tail connection fastening bracket for an unmanned helicopter according to claim 1, characterized in that: The tail frame (1) includes a rod body, and a tail sleeve (11), a tail rudder (12) and a tail fin (14) arranged sequentially from the first end to the last end along the rod body; the tail rudder (12) is installed on the side end of the tail sleeve (11), and a rudder mount (13) is horizontally arranged on its upper part.

7. The tail connection fastening bracket for an unmanned helicopter according to claim 6, characterized in that: The tail rudder (12) is fixedly connected to the tail sleeve (11), with a rudder mount (13) at the upper end and a signal light (121) at the lower end.

8. The tail connection fastening bracket for an unmanned helicopter according to claim 6, characterized in that: The tail fin (14) includes a servo (141) and a tail fin plate (142) connected to the output end of the servo for controlling the rotation of the tail fin plate.

9. The tail connection fastening bracket for an unmanned helicopter according to claim 1, characterized in that: There are two first connectors (4) symmetrically arranged, and each end of the connector has a first connecting cavity (41) for fixed connection with the cabin connecting frame.

10. The tail connection fastening bracket for an unmanned helicopter according to claim 1, characterized in that: There are two symmetrically arranged second connectors (5), and a second connecting cavity (51) is opened at the lower end of each connector for fixing to the machine body frame via a connecting rod.

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