A rotorcraft arm straight insertion quick release mechanism

Abstract

The utility model discloses a kind of rotorcraft arm straight insertion quick-release mechanism, including male head arm pipe, female head arm pipe and male head guide head, the outside of the male head arm pipe is respectively equipped with limit ring and threaded sleeve, the end of the male head arm pipe is equipped with male head guide head, the end of the female head arm pipe is equipped with female head threaded base, the inside of the female head threaded base is equipped with female head arm inner tube, the end of the female head threaded base is equipped with female head limit buckle;The utility model is directly connected by using the carbon pipe sleeve connection mode of male head arm pipe and female head arm pipe, so as to utilize the improved connecting mechanism through carbon pipe sleeve connection mode, improve the transmission mode of force, and the angle between carbon tube and the depth of butt joint are controlled by limit ring with tooth profile structure of thread, so as to carry out thread locking, guarantee reliable butt joint of electrical interface simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of rotorcraft technology, specifically to a rotorcraft arm direct insertion quick-release mechanism. Background Technology

[0002] The rotor arms are mainly used to connect the fuselage and the rotor system, providing stable support for the rotor's rotation and ensuring that the rotor maintains the correct position and attitude during flight. They also undertake the installation of related equipment such as motors and electronic speed controllers. They are an important component of the rotorcraft. When assembling the rotorcraft or replacing parts, the rotor arms need to be installed and disassembled. Existing rotorcraft arms typically employ folding connection mechanisms, which are not only structurally complex, bulky, and heavy, but also involve direct cable connections without connectors, reducing maintainability. Furthermore, forces are indirectly transmitted through the folding structure, affecting the stability and reliability of the arm connection. Utility Model Content

[0003] The purpose of this invention is to provide a rotorcraft arm direct insertion quick-release mechanism to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a rotorcraft arm direct insertion quick-release mechanism, comprising a male arm tube, a female arm tube, and a male guide head. The outer side of the male arm tube is provided with a limiting ring and a threaded sleeve. The end of the male arm tube is provided with a male guide head. The end of the female arm tube is provided with a female threaded base. The inner side of the female threaded base is provided with a female arm inner tube. The end of the female threaded base is provided with a female limiting buckle. The male guide head has a male electrical connector on its inner side, and the female arm tube has a female connector plate at its tail end. The female connector plate has a female guide structure, and the female guide structure has a female electrical connector on its inner side.

[0005] Preferably, the outer side of the limiting ring is provided with a groove and a toothed block, and the toothed block matches the female head limiting buckle. It is easy to control the angle and the depth of docking between carbon tubes by matching the structure of the toothed block and the female head limiting buckle.

[0006] Preferably, both the threaded sleeve and the female threaded base are provided with safety tethering holes to facilitate the fixing of the installed threaded sleeve and female threaded base.

[0007] Preferably, the male connector guide is composed of foolproof guide blocks, and the foolproof guide blocks are located at the four corners of the outside of the male electrical connector. The female connector guide structure is opposite to the horizontal plane of the four guide blocks, which facilitates the use of the splicing structure and makes it convenient for structural calibration and assembly.

[0008] Preferably, the inner side of the female guide structure is provided with a foolproof guide hole, and the guide holes are respectively set at the top and bottom of the female electrical connector. The guide holes are matched with the guide blocks so as to improve the accuracy and stability of the splicing between the female guide structure and the male guide head by using the combination of guide holes and guide blocks.

[0009] Preferably, a connector is provided on the outside of the female head boom tube, and the female head guide structure is located at the tail end inside the female head boom tube, which facilitates precise electrical interface docking when the male electrical connector extends to the female head boom tube structure for connection.

[0010] Preferably, the outer diameter of the female thread base and the limiting ring are the same, and the male electrical connector is adapted to the female electrical connector. Through the insertion and combination of the male electrical connector and the female electrical connector, the electrical components are connected in one go when the machine arm is connected.

[0011] The rotor arm direct insertion quick-release mechanism proposed in this utility model has at least the following beneficial effects: By using a direct-insertion connection of carbon tubes in the male and female arm tubes, the improved connection mechanism enhances force transmission through the carbon tube connection. A threaded locking ring with a toothed structure controls the angle and depth of the connection between the carbon tubes, ensuring thread locking and reliable electrical interface connection. This design not only facilitates quick and easy insertion and removal of rotor arms without requiring operation of the electrical interface, but also completes mechanical and electrical connections in one step, achieving weight reduction. Attached Figure Description

[0012] Figure 1 This is the first perspective view of the present invention; Figure 2 This is a second perspective view of the present invention; Figure 3 This is a third perspective view of the present invention; Figure 4 This is a perspective view of the female connector plate of this utility model.

[0013] In the diagram: 1. Male boom tube; 2. Female boom tube; 3. Limiting ring; 4. Threaded sleeve; 5. Male guide head; 6. Female threaded base; 7. Female boom inner tube; 8. Female limit buckle; 9. Male electrical connector; 10. Female connector plate; 11. Female guide structure; 12. Female electrical connector. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4 The present invention provides an embodiment of a rotorcraft arm direct insertion quick release mechanism, comprising a male arm tube 1, a female arm tube 2, and a male guide head 5. The outer side of the male arm tube 1 is provided with a limiting ring 3 and a threaded sleeve 4, the end of the male arm tube 1 is provided with a male guide head 5, and the end of the female arm tube 2 is provided with a female threaded base 6. Both the threaded sleeve 4 and the female threaded base 6 are provided with safety tethering holes to facilitate the fixing of the threaded sleeve 4 and the female threaded base 6 after installation. The inner side of the female head threaded base 6 is provided with a female head machine arm inner tube 7. The end of the female head threaded base 6 is provided with a female head limiting buckle 8. The outer side of the limiting ring 3 is provided with a groove and a tooth block respectively. The tooth block matches the female head limiting buckle 8. It is easy to control the angle and the depth of the connection between carbon tubes by matching the structure of the tooth block and the female head limiting buckle 8. The male guide head 5 has a male electrical connector 9 on its inner side, and a female connector plate 10 is provided at the tail end of the female arm tube 2. The female connector plate 10 has a female guide structure 11, and a female electrical connector 12 is provided on the inner side of the female guide structure 11. The male guide head 5 is composed of anti-foolproof guide blocks, and the anti-foolproof guide blocks are located at the four corners on the outer side of the male electrical connector 9. The female guide structure 11 is opposite to the horizontal plane of the four guide blocks, which facilitates the use of the splicing structure and makes it convenient for structural calibration and assembly. The inner side of the female guide structure 11 is provided with a foolproof guide hole, and the guide holes are respectively set at the top and bottom of the female electrical connector 12. The guide holes match the guide blocks so that the combination of the guide holes and the guide blocks can improve the accuracy and stability of the splicing of the female guide structure 11 and the male guide head 5. The outer side of the female arm tube 2 is provided with a connector, and the female guide structure 11 is set at the tail end inside the female arm tube 2, so that the male electrical connector 9 can be extended to the female arm tube 2 for precise electrical interface docking when the structure is connected. The female threaded base 6 and the limiting ring 3 have the same outer diameter. The male electrical connector 9 and the female electrical connector 12 are plugged in and matched. Through the plugging combination of the male electrical connector 9 and the female electrical connector 12, the electrical components are plugged in at one time when the machine arm is connected.

[0016] Working principle: The rotorcraft arm is inserted directly into the quick-release mechanism; The existing aluminum alloy connection structure is improved by connecting and fixing the male arm tube 1 and the female arm tube 2 with carbon tubes through a sleeve connection. In actual assembly, the male arm tube 1 pulls the male guide head 5 and the male electrical connector 9 into the female threaded base 6 and the inner side of the female arm tube 7, so that the male guide head 5 and the female guide structure 11 in the female arm tube 2 can be structurally spliced ​​to accurately connect the male electrical connector 9 and the female electrical connector 12. During this process, the toothed structure of the limiting ring 3 matches the female limiting buckle 8 structure on the outside of the female threaded base 6, so that the angle and the depth of the connection between the carbon tubes can be controlled by the limiting ring 3 on the thread, realizing the direct insertion and quick release operation of the rotor arm. At the same time, the force transmission method is improved. The reliability of the electrical interface connection is ensured by the thread locking. The mechanical and electrical connection work is completed in one go without operating the electrical interface.

[0017] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0018] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A rotorcraft arm direct insertion quick-release mechanism, comprising a male arm tube (1), a female arm tube (2), and a male guide head (5), characterized in that: The male arm tube (1) is provided with a limiting ring (3) and a threaded sleeve (4) on its outer side. The male arm tube (1) is provided with a male guide head (5) at its end. The female arm tube (2) is provided with a female threaded base (6) at its end. The female arm tube (6) is provided with a female arm inner tube (7) on its inner side. The female limit buckle (8) is provided at the end of the female threaded base (6). The male guide head (5) has a male electrical connector (9) on its inner side, and the female arm tube (2) has a female connector plate (10) at its tail end. The female connector plate (10) has a female guide structure (11) on its inner side, and a female electrical connector (12) is provided on its inner side.

2. The rotor arm direct insertion quick-release mechanism according to claim 1, characterized in that: The outer side of the limiting ring (3) is provided with grooves and tooth blocks, and the tooth blocks are matched with the female head limiting buckle (8).

3. The rotor arm direct insertion quick-release mechanism according to claim 1, characterized in that: Both the threaded sleeve (4) and the female threaded base (6) are provided with safety tethering holes.

4. The rotor arm direct insertion quick-release mechanism according to claim 1, characterized in that: The male guide (5) is composed of anti-foolproof guide blocks, and the anti-foolproof guide blocks are located at the four corners outside the male electrical connector (9). The female guide structure (11) is opposite to the horizontal plane of the four guide blocks.

5. The rotor arm direct insertion quick-release mechanism according to claim 3, characterized in that: The inner side of the female guide structure (11) is provided with a foolproof guide hole, and the guide holes are respectively set at the top and bottom of the female electrical connector (12), and the guide holes are matched with the guide block.

6. The rotor arm direct insertion quick-release mechanism according to claim 1, characterized in that: The outer side of the female head boom tube (2) is provided with a connector, and the female head guide structure (11) is provided at the tail end inside the female head boom tube (2).

7. The rotor arm direct insertion quick-release mechanism according to claim 1, characterized in that: The outer diameters of the female thread base (6) and the limiting ring (3) are the same, and the male electrical connector (9) is plugged into and adapted to the female electrical connector (12).

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