High-strength lightweight carbon fiber winglet connecting structure

Abstract

The utility model discloses a high -strength light weight carbon fiber wing piece connecting structure, including the mounting shaft, the surface fixed connection of mounting shaft has a pair of half arc cover, carbon fiber wing piece main part is installed to one side of half arc cover, the surface fixed connection of carbon fiber wing piece main part has the ball head, the inner wall fixed connection of half arc cover has the square, the surface of ball head has established cross groove. The utility model discloses can be fixed through being inserted into first insertion slot with first locating pin, or being inserted into second insertion slot with second locating pin, the one end of first locating pin can be blocked and be limited by the surface of the U -shaped board on the first L -shaped board, keeps the stability of first locating pin and is inserted in first insertion slot, the one end of second locating pin can be blocked by the surface of the U -shaped board on the second L -shaped board, keeps the stability of second locating pin and is inserted in second insertion slot, when disassembling, can realize the effect of manual quick disassembly after the stress of a pair of U -shaped boards is pushed.

Description

Technical Field

[0001] This utility model relates to the field of aerospace technology, and in particular to a high-strength, lightweight carbon fiber blade connection structure. Background Technology

[0002] Carbon fiber, a high-performance material hailed as "black gold" and "king of new materials," is renowned for its lightweight, high strength, and corrosion resistance. Carbon fiber blades have wide applications in aerospace, automotive manufacturing, sporting goods, and many other fields.

[0003] Existing small drone winglets are typically mounted on a rotating shaft using screws. This results in a heavy overall weight distribution, insufficient structural strength, and difficulty in quickly adjusting the tilt angle after installation. Disassembly is also cumbersome. To address these issues, a high-strength, lightweight carbon fiber winglet connection structure is needed. Utility Model Content

[0004] The purpose of this invention is to solve the problems raised by the prior art by proposing a high-strength, lightweight carbon fiber blade connection structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A high-strength, lightweight carbon fiber blade connection structure includes a mounting shaft, a pair of semi-circular sleeves fixedly connected to the surface of the mounting shaft, a carbon fiber blade body mounted on one side of the semi-circular sleeve, a ball head fixedly connected to the surface of the carbon fiber blade body, a block fixedly connected to the inner wall of the semi-circular sleeve, a cross groove formed on the surface of the ball head, and a positioning connection mechanism provided on the inner wall of the semi-circular sleeve. The positioning and connecting mechanism includes a block fixedly connected to the inner wall of the semi-circular sleeve. The width of the block is consistent with the width of the inner wall of the cross groove. The surface of the ball head is provided with multiple first slots and second slots.

[0006] Preferably, the surface of the semi-circular sleeve is fixedly connected with a first L-shaped plate and a second L-shaped plate, the inner wall of the first L-shaped plate is slidably connected with a first positioning pin, the inner wall of the second L-shaped plate is slidably connected with a second positioning pin, the first positioning pin is adapted to the first slot, and the second positioning pin is adapted to the second slot.

[0007] Furthermore, both the first L-shaped plate and the second L-shaped plate have grooves on their surfaces, and U-shaped plates are slidably connected to the inner walls of the grooves.

[0008] Preferably, a return spring is fixedly connected to the inner wall of the U-shaped plate, and a round-headed post is fixedly connected to one end of the return spring. The surface of the round-headed post is slidably connected to the inner wall of the U-shaped plate.

[0009] Furthermore, the inner wall of the groove is provided with a first groove and a second groove, and the inner walls of the first groove and the second groove are adapted to the surface of the round-headed column.

[0010] Preferably, the surface of the carbon fiber blade body is provided with multiple lightweight holes, and the inner wall of the lightweight holes is fixedly connected with X-shaped reinforcing ribs.

[0011] The beneficial effects of this utility model are as follows: The first positioning pin can be inserted into the first slot, or the second positioning pin can be inserted into the second slot for fixation. One end of the first positioning pin can be blocked and limited by the surface of the U-shaped plate on the first L-shaped plate, keeping the first positioning pin stable in the first slot. One end of the second positioning pin can be blocked by the surface of the U-shaped plate on the second L-shaped plate, keeping the second positioning pin stable in the second slot. The advantage of this is that the angle of the carbon fiber wing body can be adjusted. During disassembly, after pushing the pair of U-shaped plates to apply force, the first positioning pin can be quickly pulled out from the first slot, and the second positioning pin can be pulled out from the teeth of the second slot, achieving the effect of manual quick disassembly. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of a high-strength lightweight carbon fiber blade connection structure proposed in this utility model. Figure 2 This is a three-dimensional structural diagram of the cross groove in a high-strength, lightweight carbon fiber blade connection structure proposed in this utility model. Figure 3 This is a cross-sectional view of the semi-arc sleeve in a high-strength, lightweight carbon fiber winglet connection structure proposed in this utility model. Figure 4 This utility model proposes a high-strength, lightweight carbon fiber blade connection structure. Figure 3 A magnified structural diagram of point A in the middle.

[0013] In the diagram: 1. Mounting shaft; 2. Semi-arc sleeve; 3. Carbon fiber blade body; 4. Lightweight hole; 5. X-shaped reinforcing rib; 6. Ball head; 7. First slot; 8. Second slot; 9. Cross groove; 10. First L-shaped plate; 11. Second L-shaped plate; 12. First locating pin; 13. U-shaped plate; 14. Slide groove; 15. First groove; 16. Round head post; 17. Return spring; 18. Second groove; 19. Block; 20. Second locating pin. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Reference Figures 1-4 A high-strength lightweight carbon fiber blade connection structure includes a mounting shaft 1, a pair of semi-circular sleeves 2 fixedly connected to the surface of the mounting shaft 1, a carbon fiber blade body 3 mounted on one side of the semi-circular sleeve 2, a ball head 6 fixedly connected to the surface of the carbon fiber blade body 3, a block 19 fixedly connected to the inner wall of the semi-circular sleeve 2, a cross groove 9 opened on the surface of the ball head 6, and a positioning connection mechanism provided on the inner wall of the semi-circular sleeve 2. The positioning and connecting mechanism includes a block 19 fixedly connected to the inner wall of the semi-circular sleeve 2. The width of the block 19 is the same as the width of the inner wall of the cross groove 9. The surface of the ball head 6 is provided with a plurality of first slots 7 and second slots 8.

[0016] By setting a semi-circular sleeve 2, a ball head 6 is fitted and installed. By setting a cross groove 9, space is provided for the installation and adjustment of the block 19. By setting a first slot 7 and a second slot 8, space is provided for the insertion of the first positioning pin 12 and the second positioning pin 20.

[0017] In this utility model, reference is made to Figure 3 The surface of the semi-circular sleeve 2 is fixedly connected to a first L-shaped plate 10 and a second L-shaped plate 11. The inner wall of the first L-shaped plate 10 is slidably connected to a first positioning pin 12, and the inner wall of the second L-shaped plate 11 is slidably connected to a second positioning pin 20. The first positioning pin 12 is adapted to the first slot 7, and the second positioning pin 20 is adapted to the second slot 8.

[0018] By setting the first L-shaped plate 10, the sliding stability of the first positioning pin 12 is maintained. By setting the second L-shaped plate 11, the sliding stability of the second positioning pin 20 is maintained. By setting the first positioning pin 12 and the second positioning pin 20, the angle at which the ball head 6 is installed in the semi-circular sleeve 2 is limited and fixed.

[0019] In this utility model, reference is made to Figure 3 The surfaces of the first L-shaped plate 10 and the second L-shaped plate 11 are both provided with grooves 14, and the inner walls of the grooves 14 are slidably connected to U-shaped plates 13.

[0020] By setting the slide groove 14, the U-shaped plate 13 is guided to slide. By setting the U-shaped plate 13, the surface of the U-shaped plate 13 presses against one end of the first positioning pin 12 and the second positioning pin 20, thus maintaining the stable insertion of the first positioning pin 12 and the second positioning pin 20.

[0021] In this utility model, reference is made to Figure 4 A return spring 17 is fixedly connected to the inner wall of the U-shaped plate 13. A round-headed column 16 is fixedly connected to one end of the return spring 17. The surface of the round-headed column 16 is slidably connected to the inner wall of the U-shaped plate 13.

[0022] By setting a reset spring 17, the round head post 16 is driven to slide back to its original position, keeping the round head post 16 stable in the first groove 15 or the second groove 18.

[0023] In this utility model, reference is made to Figure 3 and Figure 4 The inner wall of the slide groove 14 is provided with a first groove 15 and a second groove 18, and the inner walls of the first groove 15 and the second groove 18 are adapted to the surface of the round-headed column 16.

[0024] By setting the first groove 15 and the second groove 18, space is provided for the round-headed post 16 to be inserted and positioned, thus keeping the position of the U-shaped plate 13 stable.

[0025] In this utility model, reference is made to Figure 2 The surface of the carbon fiber blade body 3 is provided with multiple lightweight holes 4, and the inner wall of the lightweight holes 4 is fixedly connected with X-shaped reinforcing ribs 5.

[0026] By setting lightweight holes 4, the weight of the carbon fiber blade body 3 is reduced, and by setting X-shaped reinforcing ribs 5, the structural strength of the carbon fiber blade body 3 is strengthened.

[0027] Working principle: During installation, after the surface of the ball head 6 is tightly fitted against the inner wall of the semi-circular sleeve 2, the square block 19 is installed inside the cross groove 9. When adjusting the angle of the ball head 6, the square block 19 can be slidably adjusted within the cross groove 9. After adjustment, the first positioning pin 12 can be inserted into the first slot 7, or the second positioning pin 20 can be inserted into the second slot 8 for fixation. One end of the first positioning pin 12 can be blocked and limited by the surface of the U-shaped plate 13 on the first L-shaped plate 10, keeping the first positioning pin 12 stable in the first slot 7. One end of the second positioning pin 20 can be blocked by the surface of the second L-shaped plate 11. The surface of the U-shaped plate 13 acts as a barrier, ensuring the stability of the second positioning pin 20 inserted into the second slot 8. The round-headed post 16 is stably positioned within the second groove 18. The return spring 17 maintains the pressing and positioning of the round-headed post 16, preventing the U-shaped plate 13 from sliding freely within the slide groove 14. When removal is required, the U-shaped plate 13 is pushed, causing the round-headed post 16 to retract into the U-shaped plate 13, compressing the return spring 17 and releasing the positioning restriction on the U-shaped plate 13. This allows the first positioning pin 12 to be quickly pulled out of the first slot 7. Similarly, the second positioning pin 20 can be pulled out from the teeth of the second slot 8 for easy disassembly.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-strength, lightweight carbon fiber blade connection structure, comprising a mounting shaft (1), characterized in that, A pair of semi-circular sleeves (2) are fixedly connected to the surface of the mounting shaft (1). A carbon fiber blade body (3) is installed on one side of the semi-circular sleeve (2). A ball head (6) is fixedly connected to the surface of the carbon fiber blade body (3). A block (19) is fixedly connected to the inner wall of the semi-circular sleeve (2). A cross groove (9) is opened on the surface of the ball head (6). A positioning connection mechanism is provided on the inner wall of the semi-circular sleeve (2). The positioning and connecting mechanism includes a block (19) fixedly connected to the inner wall of the semi-circular sleeve (2). The width of the block (19) is consistent with the width of the inner wall of the cross groove (9). The surface of the ball head (6) is provided with a plurality of first slots (7) and second slots (8).

2. The high-strength lightweight carbon fiber blade connection structure according to claim 1, characterized in that, The surface of the semi-circular sleeve (2) is fixedly connected to a first L-shaped plate (10) and a second L-shaped plate (11). The inner wall of the first L-shaped plate (10) is slidably connected to a first positioning pin (12), and the inner wall of the second L-shaped plate (11) is slidably connected to a second positioning pin (20). The first positioning pin (12) is adapted to the first slot (7), and the second positioning pin (20) is adapted to the second slot (8).

3. The high-strength lightweight carbon fiber blade connection structure according to claim 2, characterized in that, The surfaces of the first L-shaped plate (10) and the second L-shaped plate (11) are provided with grooves (14), and the inner wall of the grooves (14) is slidably connected with U-shaped plates (13).

4. The high-strength lightweight carbon fiber blade connection structure according to claim 3, characterized in that, A reset spring (17) is fixedly connected to the inner wall of the U-shaped plate (13), and a round-headed column (16) is fixedly connected to one end of the reset spring (17). The surface of the round-headed column (16) is slidably connected to the inner wall of the U-shaped plate (13).

5. The high-strength lightweight carbon fiber blade connection structure according to claim 3, characterized in that, The inner wall of the groove (14) is provided with a first groove (15) and a second groove (18), and the inner walls of the first groove (15) and the second groove (18) are adapted to the surface of the round-headed column (16).

6. The high-strength lightweight carbon fiber blade connection structure according to claim 1, characterized in that, The surface of the carbon fiber blade body (3) is provided with multiple lightweight holes (4), and the inner wall of the lightweight holes (4) is fixedly connected with X-shaped reinforcing ribs (5).

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