A blade angle adjustable paddle clamp device

Abstract

The application relates to a paddle angle-adjustable paddle clamp device, which comprises a paddle assembly connected with an angle adjusting shaft, a bottom base assembly, a fixing base, an angle setting disc and a locking cap, the angle adjusting shaft is rotationally connected with the fixing base, the angle setting disc is provided with a plurality of angle adjusting surfaces with different or same inclination angles, the angle setting disc is provided with a first through hole, and the locking cap is detachably connected with the fixing base after penetrating through the first through hole so that the angle adjusting surface is abutted against the rotation stopping plane. The application has the advantages of simple structure, small space occupation, and improved stability of the paddle assembly after the inclination angle is adjusted.

Description

Technical Field

[0001] This application relates to the field of propeller clamp technology, and in particular to a propeller clamp device with adjustable blade tilt angle. Background Technology

[0002] Currently, the blade tilt angle has a significant impact on various aspects of drone flight stability. Matching the appropriate blade tilt angle to different flight environments ensures optimal drone flight performance. Traditional blade tilt angle adjustments typically involve complex structures such as swashplates and servo arms. For example, utility model patent CN205239907U discloses a dual-rotor electric drone with adjustable rotor tilt angle, which uses a servo arm in conjunction with a servo motor to adjust the blade angle. Traditional blade tilt angle adjustment structures are complex, require external drives leading to large space requirements, and necessitate locking the tilt angle using external drives, such as by rotating the servo motor a certain angle and maintaining stability. This results in relatively poor stability.

[0003] Therefore, there is a need to provide a blade tilt angle adjustable blade clamp device that has a small footprint and strong tilt angle stability. Summary of the Invention

[0004] Therefore, it is necessary to provide a blade tilt angle adjustable blade clamp device, the specific technical solution of which is as follows.

[0005] An adjustable blade tilt propeller clamp device includes:

[0006] The blade assembly is connected to an angle adjustment shaft; the angle adjustment shaft is provided with an anti-rotation plane.

[0007] The base assembly includes a fixed base, an angle setting plate, and a locking cap; the angle adjustment shaft is rotatably connected to the fixed base; the angle setting plate has multiple angle adjustment surfaces, each with a different or the same tilt angle, and a first through hole; the locking cap passes through the first through hole and is detachably connected to the fixed base, so that the angle adjustment surface abuts against the anti-rotation plane.

[0008] Furthermore, the anti-rotation plane is provided with an anti-rotation protrusion, and the angle adjustment surface is provided with a limiting groove, wherein the anti-rotation protrusion engages with the limiting groove.

[0009] Furthermore, the top of the fixing base is provided with a first receiving space for accommodating the angle setting plate, the inner wall of the first receiving space is provided with a foolproof protrusion, and the angle setting plate is provided with a foolproof groove that cooperates with the foolproof protrusion.

[0010] Furthermore, the angle adjustment shaft sequentially includes a first shaft segment, a second shaft segment, and a third shaft segment; the fixed base is provided with a rotating chamber and a second receiving space; the first shaft segment is connected to the blade assembly, the second shaft segment is rotatably engaged with the rotating chamber, and the third shaft segment is inserted into the second receiving space; the anti-rotation plane is disposed on the third shaft segment; the diameter of the third shaft segment is larger than the diameter of the second shaft segment, so that a first step surface is formed between the second shaft segment and the third shaft segment, and a second step surface is formed between the second receiving space and the rotating chamber, and the first step surface and the second step surface abut against each other.

[0011] Furthermore, the first step surface is an inclined surface, and the second step surface is an inclined surface that mates with the first step surface.

[0012] Furthermore, the fixed base includes a fixed base body and a limiting block; the limiting block is connected to the fixed base body and closes the rotating chamber and the second accommodating space.

[0013] Furthermore, an elastic element is provided between the angle setting disk and the fixed base, and the elastic element has elastic potential energy to drive the angle setting disk to move away from the fixed base.

[0014] Furthermore, the blade assembly includes a blade clamp cover, a blade body, a blade clamp base, and a blade clamp connector; the blade clamp base includes a first base and a second base, the first base and the second base being connected in a bent shape; the blade clamp connector passes through the first base, the blade body, and the blade clamp cover in sequence to connect the three; the angle adjustment shaft is connected to the second base.

[0015] Furthermore, the second seat body is provided with a second through hole to accommodate the angle adjustment shaft passing through, and the end of the second through hole away from the fixed seat is provided with an anti-detachment groove, and the anti-detachment groove is provided with an anti-rotation groove; the end of the angle adjustment shaft away from the anti-rotation plane is provided with an anti-detachment platform, and the anti-detachment platform is provided with an anti-rotation platform; the anti-detachment platform is inserted into the anti-detachment groove, and the anti-rotation platform cooperates with the anti-rotation groove.

[0016] Furthermore, the propeller clip cover is provided with a slot, and the top of the second base is provided with a locking block, the slot engaging with the locking block.

[0017] Beneficial effects: The blade tilt angle adjustable blade clamp device provided by the present invention can adjust the blade assembly to the tilt angle corresponding to the angle adjustment surface by rotating the angle setting disk so that the corresponding angle adjustment surface abuts against the anti-rotation plane, thereby realizing the tilt angle adjustment of the blade assembly. The angle setting disk and the fixing seat are locked by the locking cap, which can maintain the relative stability of the angle setting disk and the blade assembly. Therefore, the present invention has a simple structure, does not require external drive, occupies little space, and can also improve the stability of the blade assembly after tilt angle adjustment. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the propeller clamp device;

[0020] Figure 2 A partial sectional view of the propeller clamping device;

[0021] Figure 3 This is one of the exploded schematic diagrams of the paddle clamp device;

[0022] Figure 4 The second schematic diagram of the explosion of the paddle clamp device;

[0023] Figure 5 One of the schematic diagrams of the mounting base body;

[0024] Figure 6 This is the second schematic diagram of the mounting base body;

[0025] Figure 7 This is a schematic diagram of the angle adjustment shaft;

[0026] Figure 8 One of the schematic diagrams for the angle setting dial;

[0027] Figure 9 Schematic diagram two for the angle setting dial;

[0028] Figure 10 This is a schematic diagram of the limit block;

[0029] Figure 11 One of the schematic diagrams for the propeller clamp base;

[0030] Figure 12 This is the second schematic diagram of the propeller clamp base;

[0031] Figure 13 This is a schematic diagram of the propeller clamp cover;

[0032] Figure 14 A schematic diagram showing the disc behind the hidden angle setting of the propeller clamp device;

[0033] Figure 15 This is a top view of the propeller clamp device in the first tilt angle state;

[0034] Figure 16 This is a side view of the propeller clamp device in the first tilt angle state;

[0035] Figure 17 This is a top view of the propeller clamp device in the second tilt angle state;

[0036] Figure 18 This is a side view of the propeller clamp device in the second tilt angle state;

[0037] Figure 19 This is a top view of the propeller clamp device at the third tilt angle.

[0038] Figure 20 This is a side view of the propeller clamp device in the third tilt angle state.

[0039] Explanation of reference numerals in the attached drawings: 1. Blade assembly; 2. Angle adjustment shaft; 3. Base assembly; 4. Blade drive component;

[0040] 11. Propeller clip top cover; 12. Propeller blade body; 13. Propeller clip base; 14. Propeller clip connector; 15. First base; 16. Second base;

[0041] 111. Slot; 112. Top cover gasket compartment; 113. Elastic gasket; 114. Wear-resistant gasket; 115. Metal gasket;

[0042] 141. Blade fasteners; 142. Blade pins;

[0043] 151. Base washer compartment;

[0044] 161. Second through hole; 162. Anti-detachment groove; 163. Anti-rotation groove; 164. Locking block;

[0045] 21. Anti-rotation plane; 22. Anti-rotation protrusion; 23. First shaft section; 24. Second shaft section; 25. Third shaft section; 26. First step surface; 27. Anti-detachment platform; 28. Anti-rotation platform;

[0046] 31. Fixing base; 32. Angle setting plate; 33. Locking cap; 34. Fixing base body; 35. Limiting block; 36. Elastic element;

[0047] 311. First positioning surface; 312. First receiving space; 313. Anti-foolproof protrusion; 314. Rotating chamber; 315. Second receiving space; 316. Second stepped surface; 317. Screw hole;

[0048] 321. First set of angle adjustment surfaces; 322. Second set of angle adjustment surfaces; 323. Third set of angle adjustment surfaces; 324. First through hole; 325. Second positioning surface; 326. Limiting groove; 327. Foolproof groove; 328. Handle;

[0049] 351. Block. Detailed Implementation

[0050] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0051] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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 application.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0054] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0055] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0056] Example

[0057] Reference Figure 1 and Figure 2 As shown, this embodiment provides a blade tilt-adjustable blade clamping device, including a blade assembly 1, an angle adjustment shaft 2, a base assembly 3, and a blade drive component 4. The blade assembly 1 is connected to the angle adjustment shaft 2, causing the blade assembly 1 to rotate with the rotation of the blade adjustment shaft. Rotating the angle adjustment shaft 2 adjusts the rotation angle of the blade assembly 1, i.e., adjusts the blade tilt angle. (Refer to...) Figure 7 As shown, the angle adjustment seat is provided with an anti-rotation plane 21. (Refer to...) Figure 2-4 As shown, the base assembly 3 includes a fixed base 31, an angle setting disc 32, and a locking cap 33. The fixed base 31 is connected to the propeller drive component 4, which drives the fixed base 31 to rotate, thereby driving the propeller assembly 1 to rotate and providing power for the UAV's flight. The angle adjustment shaft 2 is rotatably connected to the fixed base 31, as shown in the figure. Figure 8-9 As shown, the angle setting disk 32 has multiple angle adjustment surfaces, each with a different or the same tilt angle. Different tilt angles allow the blade assembly 1 to be adjusted to different blade tilt angles. The angle setting disk 32 has a first through hole 324. The locking cap 33 passes through the first through hole 324 and is detachably connected to the fixing base 31, causing the angle adjustment surface to abut against the anti-rotation plane 21. Because the angle adjustment surface abuts against the anti-rotation plane 21, the anti-rotation plane 21 forms a corresponding tilt angle after contacting the angle adjustment surface, thereby causing the angle adjustment shaft 2 to drive the blade assembly 1 to rotate to the corresponding tilt angle. That is, different angle adjustment surfaces correspond to different blade tilt angles of the blade assembly 1.

[0058] It should be noted that in this embodiment, there are two sets of blade assemblies 1, and the two sets of blade assemblies 1 are symmetrically arranged along the central plane of the base assembly 3. Accordingly, referring to... Figure 8As shown, the angle setting disk 32 has symmetrically arranged angle adjustment surfaces. In this embodiment, the angle setting disk 32 has three sets of angle adjustment surfaces, each set containing two symmetrical angle adjustment surfaces. The tilt angle of the first set of angle adjustment surfaces 321 is 0°, the tilt angle of the second set of angle adjustment surfaces 322 is 3°, and the tilt angle of the third set of angle adjustment surfaces 323 is 5°. In other embodiments, other numbers of angle adjustment surfaces can be provided, and the tilt angle of the angle adjustment surfaces can also be set to other degrees.

[0059] When adjusting the blade tilt angle, remove the locking cap 33 to separate the angle setting disk 32 from the stop plane, then rotate the angle setting disk 32 to align the corresponding angle adjustment surface with the stop plane 21, and finally use the locking cap 33 to lock the angle setting disk 32 and the fixing seat 31 to adjust the tilt angle of the blade assembly 1 and keep the blade assembly 1 stable.

[0060] It should be noted that, referring to Figure 5 as well as Figure 8 As shown, a first positioning surface 311 is provided on the fixed base 31, and a second positioning surface 325 is provided on the angle setting plate 32. When the locking cap 33 locks the angle setting plate 32 and the fixed base 31, the first positioning surface 311 and the second positioning surface 325 abut against each other. That is, before and after rotating the angle setting plate 32 to adjust different angle adjustment surfaces abut against the anti-rotation plane 21, the relative position of the fixed base 31 and the angle setting plate 32 remains unchanged, thereby ensuring that different angle adjustment surfaces can accurately adjust the tilt angle of the blade assembly 1.

[0061] The blade tilt angle adjustable blade clamp device provided in this embodiment can adjust the blade assembly 1 to the tilt angle corresponding to the angle adjustment surface by rotating the angle setting disk 32 so that the corresponding angle adjustment surface abuts against the anti-rotation plane 21, thereby realizing the tilt angle adjustment of the blade assembly 1. The angle setting disk 32 and the fixing base 31 are locked by the locking cap 33, which can maintain the relative stability of the angle setting disk 32 and the blade assembly 1. Therefore, the structure of the present invention is simple, does not require external drive, occupies little space, and can also improve the stability of the blade assembly 1 after tilt angle adjustment.

[0062] Specifically, continue to refer to Figure 7 and Figure 8 As shown, the anti-rotation plane 21 is provided with an anti-rotation protrusion 22, and the angle adjustment surface is provided with a limiting groove 326. The anti-rotation protrusion 22 engages with the limiting groove 326. By cooperating with the anti-rotation protrusion 22 and the limiting groove 326, the relative position of the anti-rotation plane 21 and the angle adjustment surface can be further restricted, preventing relative displacement between the anti-rotation plane 21 and the angle adjustment surface after the blade tilt angle is adjusted, thus ensuring stability after tilt angle adjustment.

[0063] Specifically, refer to Figure 5and Figure 6 As shown, the top of the fixing base 31 is provided with a first receiving space 312 for accommodating the insertion of the angle setting disc 32. The inner wall of the first receiving space 312 is provided with a foolproof protrusion 313. (Refer to...) Figure 8 As shown, the angle setting disk 32 is provided with a foolproof groove 327 that cooperates with the foolproof protrusion 313. Each set of angle adjustment faces corresponds to a set of foolproof grooves 327. Therefore, when adjusting the tilt angle, after the angle setting disk 32 is rotated to the designated position, the foolproof groove 327 aligns with the foolproof protrusion 313, and the angle setting disk 32 can be inserted into the first receiving space 312, ensuring the accuracy of the tilt angle adjustment.

[0064] Specifically, continue to refer to Figure 7 As shown, the angle adjustment shaft 2 sequentially includes a first shaft segment 23, a second shaft segment 24, and a third shaft segment 25, wherein the second shaft segment 24 has the smallest shaft diameter, forming a first stepped surface 26 between the second shaft segment 24 and the third shaft segment 25. (Refer to...) Figure 5-6 As shown, the fixed base 31 is provided with a rotating chamber 314 and a second receiving space 315, and a second stepped surface 316 is formed between the second receiving space 315 and the rotating chamber 314. The first shaft segment 23 is connected to the blade assembly 1, the second shaft segment 24 is rotatably engaged with the rotating chamber 314, and the third shaft segment 25 is inserted into the second receiving space 315, so that the first stepped surface 26 abuts against the second stepped surface 316. This arrangement can restrict the relative position of the angle adjustment shaft 2 and the fixed base 31 in the axial direction of the angle adjustment shaft 2, so that the angle adjustment shaft 2 can only rotate relative to the fixed base 31, thereby adjusting the blade tilt angle. (Refer to...) Figure 14 As shown, the second accommodating space 315 is connected to the first accommodating space 312. After the third shaft segment 25 of the angle adjustment shaft 2 is inserted into the second accommodating space 315, it is exposed to the first accommodating space 312, so that the angle adjustment surface can abut against the anti-rotation plane 21.

[0065] Specifically, the first step surface 26 is an inclined surface, and the second step surface 316 is an inclined surface that mates with the first step surface 26. Compared with a right-angled step surface, an inclined step surface is easier to process and can reduce processing errors, thereby reducing the movement of the angle adjustment shaft 2 relative to the fixed seat 31 along its axial direction.

[0066] Specifically, continue to refer to Figure 3-4 As shown, the fixing base 31 includes a fixing base body 34 and a limiting block 35. The bottom of the fixing base body 34 is open. (Refer to...) Figure 10As shown, a stop 351 matching the second step surface 316 is provided above the limiting block 35. The fixed seat body 34 is connected to the limiting block 35, thereby closing the rotating chamber 314 and the second accommodating space 315. The fixed seat 31 is divided into a fixed seat body 34 and a limiting block 35 to facilitate the assembly of the angle adjustment shaft 2 and the fixed seat 31.

[0067] Specifically, continue to refer to Figure 3-4 As shown, an elastic element 36 is provided between the angle setting disc 32 and the fixed base 31. The elastic element 36 has elastic potential energy to drive the angle setting disc 32 to move away from the fixed base 31. When tilt adjustment is required, after unscrewing the locking cap 33, the angle setting disc 32 can spring up under the action of the elastic element 36, thereby facilitating the rotation of the angle setting disc 32.

[0068] Specifically, refer to Figure 5 and Figure 6 As shown, the fixing base 31 is provided with a screw hole 317, and the locking cap 33 is threadedly connected to the screw hole 317, which facilitates the removal of the locking cap 33 to adjust the angle setting plate 32.

[0069] Specifically, refer to Figure 8 and Figure 9 As shown, the top of the angle setting disk 32 is provided with a handle 328, which allows the angle setting disk 32 to be rotated conveniently to make different angle adjustment surfaces abut against the anti-rotation plane 21.

[0070] Specifically, continue to refer to Figure 3-4 As shown, the blade assembly 1 includes a blade clamp cover 11, a blade body 12, a blade clamp base 13, and a blade clamp connector 14. (Refer to...) Figure 11 As shown, the propeller clamp base 13 includes a first base 15 and a second base 16, with the first base 15 and the second base 16 connected in a bent shape. The propeller clamp connector 14 passes sequentially through the first base 15, the propeller body 12, and the propeller clamp cover 11 to connect the three. The angle adjustment shaft 2 is connected to the second base 16. The angle adjustment shaft 2 drives the second base 16 to rotate, and since the propeller body 12 is connected to the first base 15 and the propeller clamp cover 11, it drives the propeller body 12 to rotate, thereby realizing the adjustment of the propeller tilt angle.

[0071] Specifically, refer to Figure 11-12 As shown, the second seat 16 is provided with a second through hole 161 to accommodate the angle adjustment shaft 2 passing through. The end of the second through hole 161 away from the fixed seat 31 is provided with an anti-detachment groove 162, and the anti-detachment groove 162 is provided with an anti-rotation groove 163; (Refer to...) Figure 7As shown, the end of the angle adjustment shaft 2 away from the anti-rotation plane 21 is provided with an anti-detachment platform 27, and an anti-rotation platform 28 is provided on the anti-detachment platform 27. By setting the anti-rotation platform 28, the outline of the anti-detachment platform 27 is non-cylindrical. The anti-detachment platform 27 is inserted into the anti-detachment groove 162, and the anti-rotation platform 28 cooperates with the anti-rotation groove 163. By cooperating with the anti-detachment platform 27 and the anti-detachment groove 162, the angle adjustment shaft 2 is prevented from separating from the second base 16. By cooperating with the anti-rotation platform 28 and the anti-rotation groove 163, the second base 16 can rotate with the angle adjustment shaft 2, thereby adjusting the blade tilt angle.

[0072] Specifically, continue to refer to Figure 3-4 As shown, the propeller clamp connector 14 includes a blade fastener 141 and a blade pin 142. The blade pin 142 passes through the first base 15 and the blade body 12 and is then inserted into the propeller clamp cover 11. The blade fastener 141 passes through the propeller clamp cover 11 and is threadedly connected to the blade pin 142, thereby connecting the propeller clamp cover 11, the blade body 12, and the propeller clamp base 13.

[0073] Specifically, refer to Figure 12 and Figure 13 As shown, the propeller clamp cover 11 is provided with a slot 111, and the top of the second base 16 is provided with a locking block 164. The slot 111 and the locking block 164 engage, ensuring that the propeller clamp assembly rotates synchronously as a whole.

[0074] Specifically, the propeller clamp cover 11 has a cover gasket chamber 112 on the side facing the propeller body 12, and an elastic gasket 113, a wear-resistant gasket 114, and a metal gasket 115 are respectively provided in the cover gasket chamber; the first seat 15 has a base gasket chamber 151 on the side facing the propeller body 12, and an elastic gasket 113, a wear-resistant gasket 114, and a metal gasket 115 are respectively provided in the base gasket chamber 151 to ensure reliable fixation of the propeller body 12.

[0075] Reference Figure 15-20 As shown, schematic diagrams are shown of three different states in which the angle adjustment surfaces on the angle setting disk 32 abut against the anti-rotation plane 21. In the three different states, the blade tilt angles are 14.2°, 17.2° and 19.2°, respectively.

[0076] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0077] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A blade tilt angle adjustable blade clamp device, characterized in that, include: The blade assembly is connected to an angle adjustment shaft; the angle adjustment shaft is provided with an anti-rotation plane. The base assembly includes a fixed base, an angle setting plate, and a locking cap; the angle adjustment shaft is rotatably connected to the fixed base; the angle setting plate has multiple angle adjustment surfaces, each with a different or the same tilt angle, and a first through hole; the locking cap passes through the first through hole and is detachably connected to the fixed base, so that the angle adjustment surface abuts against the anti-rotation plane. The angle adjustment shaft comprises a first shaft segment, a second shaft segment, and a third shaft segment in sequence; the fixed base is provided with a rotating chamber and a second receiving space; the first shaft segment is connected to the blade assembly, the second shaft segment is rotatably engaged with the rotating chamber, and the third shaft segment is inserted into the second receiving space; the anti-rotation plane is disposed on the third shaft segment; the diameter of the third shaft segment is greater than the diameter of the second shaft segment, so that a first step surface is formed between the second shaft segment and the third shaft segment, and a second step surface is formed between the second receiving space and the rotating chamber, and the first step surface and the second step surface abut against each other.

2. The blade tilt-adjustable blade clamp device according to claim 1, characterized in that, The anti-rotation plane is provided with an anti-rotation protrusion, and the angle adjustment surface is provided with a limiting groove, and the anti-rotation protrusion engages with the limiting groove.

3. The blade tilt-adjustable blade clamp device according to claim 1, characterized in that, The top of the fixed base is provided with a first receiving space for accommodating the angle setting plate. The inner wall of the first receiving space is provided with a foolproof protrusion, and the angle setting plate is provided with a foolproof groove that cooperates with the foolproof protrusion.

4. The blade tilt-adjustable blade clamp device according to claim 1, characterized in that, The first step surface is an inclined surface, and the second step surface is an inclined surface that mates with the first step surface.

5. The blade tilt-adjustable blade clamp device according to claim 1, characterized in that, The fixed base includes a fixed base body and a limiting block; the limiting block is connected to the fixed base body and closes the rotating chamber and the second accommodating space.

6. The blade tilt-adjustable blade clamp device according to claim 1, characterized in that, An elastic element is provided between the angle setting disk and the fixed base, and the elastic element has elastic potential energy to drive the angle setting disk to move away from the fixed base.

7. The blade tilt-adjustable blade clamp device according to claim 1, characterized in that, The blade assembly includes a blade clamp cover, a blade body, a blade clamp base, and a blade clamp connector; the blade clamp base includes a first base and a second base, the first base and the second base are connected in a bent shape; the blade clamp connector passes through the first base, the blade body, and the blade clamp cover in sequence to connect the three; the angle adjustment shaft is connected to the second base.

8. The blade tilt-adjustable blade clamp device according to claim 7, characterized in that, The second seat is provided with a second through hole to accommodate the angle adjustment shaft. The end of the second through hole away from the fixed seat is provided with an anti-detachment groove, and the anti-detachment groove is provided with an anti-rotation groove. The end of the angle adjustment shaft away from the anti-rotation plane is provided with an anti-detachment platform, and the anti-detachment platform is provided with an anti-rotation platform. The anti-detachment platform is inserted into the anti-detachment groove, and the anti-rotation platform cooperates with the anti-rotation groove.

9. A blade tilt-adjustable blade clamp device according to claim 7, characterized in that, The propeller clip cover is provided with a slot, and the top of the second base is provided with a locking block, and the slot engages with the locking block.

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