High-precision reliable inhaul cable control mechanism of unmanned aerial vehicle

Abstract

The utility model provides an unmanned aerial vehicle high-precision reliable inhaul cable control mechanism, and relates to the technical field of unmanned aerial vehicle control parts, the inhaul cable control mechanism is used for pulling an inhaul cable, the inhaul cable is slidably connected in an inhaul cable jacket, the control mechanism comprises a support, one side of the support is used for being connected with one end of the inhaul cable jacket, and the other side of the support is used for being connected with the other end of the inhaul cable jacket; the rotary driving part is connected to the other side of the bracket; one end of the rocker arm is connected with the output end of the rotary driving part; the connecting piece is rotationally connected to the other end of the rocker arm, a first through hole is formed in the side wall of the connecting piece, and the inhaul cable is arranged in the first through hole in a penetrating mode; the locking mechanism is arranged on the connecting piece, and the locking mechanism is used for locking the inhaul cable; the inhaul cable control mechanism is simple in structural form, the accuracy of the inhaul cable control mechanism is improved, the structural weight is reduced, and the cost of the inhaul cable control mechanism is reduced; the unmanned aerial vehicle can be suitable for unmanned aerial vehicles of various specifications.

Description

Technical Field

[0001] The utility model belongs to the technical field of unmanned aerial vehicle control components, and more specifically, relates to a high-precision and reliable cable control mechanism for an unmanned aerial vehicle. Background Art

[0002] Medium and high altitude UAVs are a major military equipment project that my country urgently needs to develop. The cable control mechanism is a common control mechanism for the throttle and throttle control of UAV engines. Compared with manned aircraft, its structural form is quite different. Precision characteristics are the key performance of the UAV cable control mechanism.

[0003] At present, the existing cable operating mechanism has poor accuracy, and virtual displacement is often generated during the cable movement process. In addition, in order to improve the accuracy of some designs, high-precision processing or complex structural design is required, which greatly increases the cost of mechanism development and reduces maintainability. Utility Model Content

[0004] The purpose of the utility model is to provide a high-precision and reliable cable control mechanism for unmanned aerial vehicles in response to the deficiencies in the existing technology, so as to solve the problems mentioned in the above background technology that the existing cable control mechanism has poor accuracy, virtual displacement is often generated during the movement of the cable, and some designs need to be processed by high-precision or complex structural design to improve the accuracy, which greatly increases the cost of mechanism development and reduces maintainability.

[0005] In order to achieve the above-mentioned object, the utility model provides a high-precision and reliable cable control mechanism for a UAV, wherein the cable control mechanism is used to pull a cable, wherein the cable is slidably connected in a cable jacket, and the control mechanism comprises:

[0006] A bracket, one side of which is used to connect with one end of the cable jacket;

[0007] A rotary drive member connected to the other side of the bracket;

[0008] A rocker arm, one end of which is connected to the output end of the rotary drive member;

[0009] A connecting member, the connecting member is rotatably connected to the other end of the rocker arm, a side wall of the connecting member is provided with a first through hole, the first through hole is used to pass a cable, when the rocker arm and the cable are in a vertical state, the axis of the first through hole and the center of one end of the cable jacket are located on the same straight line;

[0010] A locking mechanism is arranged on the connecting piece and is used to lock the cable.

[0011] Preferably, the connecting member is a cable screw, the first through hole is arranged at a nut position close to the cable screw, the other end of the rocker arm is provided with an assembly hole, the cable screw is rotatably connected in the assembly hole, and the first through hole is arranged on the outside of the assembly hole.

[0012] Preferably, the locking mechanism comprises:

[0013] A collar, one end of which is provided with an arc groove, the collar is sleeved on the cable screw, and the other end of the collar is fitted on the nut position of the cable screw;

[0014] A sleeve, one end of which is provided with an arc groove, the sleeve is sleeved on the cable screw, one end of the sleeve is fitted on one end of the collar, the arc groove on the sleeve and the arc groove on the collar are both connected to the first through hole, and the cable is clamped between the two arc grooves, and the sleeve is rotatably connected in the assembly hole;

[0015] A gasket, which is sleeved on the cable screw and is attached to the other end of the sleeve;

[0016] A cable nut is threadedly connected to the cable screw and is fitted onto the gasket.

[0017] Preferably, the sleeve includes a first cylinder and a second cylinder, one end of the first cylinder is connected to one end of the second cylinder, the outer diameter of the second cylinder is larger than the outer diameter of the first cylinder, the arc groove is arranged at the other end of the second cylinder, the inner side wall of the first cylinder and the inner side wall of the second cylinder are connected to the cable screw by interference fit, and the outer side wall of the first cylinder is connected to the assembly hole by clearance fit.

[0018] Preferably, a notch is provided at one end of the rocker arm, first mounting holes are provided on both sides of the notch, a second mounting hole is provided at the bottom of the notch, the second mounting hole is square, the second mounting hole is sleeved on the output end of the rotary drive member, a rocker screw is passed through the first mounting hole, the rocker screw is threadedly connected with a rocker nut, when the rocker nut is screwed in the direction of the nut of the rocker screw, the width of the notch gradually decreases, and the second mounting hole can clamp the output end of the rotary drive member.

[0019] Preferably, the output end of the rotary drive member is square, and the square second mounting hole is sleeved on the square output end of the rotary drive member.

[0020] Preferably, a second through hole is provided on one side of the bracket, and the UAV high-precision and reliable cable control mechanism also includes a connecting mechanism, which is connected to the second through hole and is used to connect to one end of the cable jacket.

[0021] Preferably, the connection mechanism comprises:

[0022] A cable limiting cylinder, wherein the outer wall of the cable limiting cylinder is provided with an external thread, and the cable limiting cylinder is penetrated by the second through hole;

[0023] Two limiting nuts, the two limiting nuts are threadedly connected to the cable limiting cylinder, the two limiting nuts are respectively attached to the bracket and are located at two sides of the second through hole;

[0024] A fastening sleeve, one end of which is used to be screwed into one end of the cable sleeve, the other end of which is provided with an internal thread, and one end of the cable limiting cylinder away from the rocker arm is threadedly connected with the other end of the fastening sleeve;

[0025] The outer sleeve limiting ring is sleeved and fastened to one end of the cable outer sleeve, and the outer sleeve limiting ring is clamped on the inner surface of one end of the fastening sleeve. The cable passes through the cable limiting cylinder, the fastening sleeve and the cable outer sleeve in sequence, and a gap is formed between the inner side wall of the cable limiting cylinder and the cable.

[0026] Preferably, the axis of the cable limiting cylinder and the axis of the fastening sleeve are located on the same straight line, the inner diameter of one end of the fastening sleeve is the same as the inner diameter of the outer sleeve limiting ring, the outer diameter of the outer sleeve limiting ring is smaller than the inner diameter of the other end of the fastening sleeve, and when the outer sleeve limiting ring is crimped and deformed, the outer sleeve limiting ring is tightly connected to one end of the cable outer sleeve.

[0027] Preferably, when the rocker arm and the cable are in a vertical state, the axis of the first through hole and the axis of the cable limiting cylinder are located on the same straight line.

[0028] The utility model provides a high-precision and reliable cable control mechanism for unmanned aerial vehicles, which has the beneficial effects of: a connecting piece of the cable control mechanism is rotatably connected to the other end of a rocker arm, a first through hole of the connecting piece is used for passing a cable, a locking mechanism on the connecting piece is used for locking the cable, the connecting piece can rotate during the revolution around the output end of a rotating drive piece through the rocker arm, and the position where the cable passes through the first through hole is always kept in a horizontal straight line state, the cable will not bend, and further, virtual displacement of the cable during movement is eliminated, the control accuracy is improved, and the cable control mechanism has a simple structural form, which is conducive to reducing the overall weight and can reduce the development cost.

[0029] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0031] Figure 1 A schematic diagram of the main structure of a high-precision and reliable cable control mechanism for a UAV according to an embodiment of the utility model is shown;

[0032] Figure 2 A schematic diagram of the three-dimensional structure of a high-precision and reliable cable control mechanism for a UAV according to an embodiment of the utility model is shown;

[0033] Figure 3 A schematic structural diagram showing a locking mechanism of a high-precision and reliable cable control mechanism of a UAV connected to a rocker arm according to an embodiment of the utility model;

[0034] Figure 4 Shows Figure 3 The enlarged structural diagram at A in the middle;

[0035] Figure 5 A schematic diagram of a top view of a high-precision and reliable cable control mechanism for a UAV according to an embodiment of the utility model is shown;

[0036] Figure 6 Shows Figure 5 Schematic diagram of the middle BB section;

[0037] Figure 7 Shows Figure 6 The enlarged structural diagram at C in the middle;

[0038] Figure 8 A schematic cross-sectional structure diagram of a rocker arm of a high-precision and reliable cable control mechanism for a UAV according to an embodiment of the utility model is shown;

[0039] Fig. 9 A schematic diagram of the three-dimensional structure of a sleeve of a high-precision and reliable cable control mechanism for a UAV according to an embodiment of the utility model is shown;

[0040] Fig.10 A schematic diagram of a sleeve cross-sectional structure of a high-precision and reliable cable control mechanism for an unmanned aerial vehicle according to an embodiment of the utility model is shown.

[0041] Description of reference numerals:

[0042] 1. Rocker arm; 101. Assembly hole; 102. First mounting hole; 103. Second mounting hole; 2. Connector; 3. Ring; 4. Sleeve; 401. First cylinder; 402. Second cylinder; 5. Gasket; 6. Cable nut; 7. Rocker arm screw; 8. Rocker arm nut; 9. Cable; 10. Cable limiting cylinder; 11. Arc groove; 12. Limiting nut; 13. Fastening sleeve; 14. Cable jacket; 15. Rotating drive member; 16. First bracket; 17. Second bracket; 18. Jacket limiting ring. DETAILED DESCRIPTION

[0043] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0044] like Figure 1 and Figure 2 As shown, the utility model provides a high-precision and reliable cable control mechanism for a UAV, the cable control mechanism is used to pull the cable, the cable is slidably connected in the cable jacket, and the control mechanism includes:

[0045] A bracket, one side of which is used to connect with one end of the cable jacket 14;

[0046] A rotary drive member 15, the rotary drive member 15 is connected to the other side of the bracket;

[0047] A rocker arm 1, one end of which is connected to the output end of the rotary drive member 15;

[0048] A connecting member 2, the connecting member 2 is rotatably connected to the other end of the rocker arm 1, and a first through hole is provided on the side wall of the connecting member 2, and the first through hole is used to pass the cable 9, and when the rocker arm 1 and the cable 9 are in a vertical state, the axis of the first through hole and the center of one end of the cable jacket 14 are located on the same straight line;

[0049] The locking mechanism is arranged on the connecting member 2 and is used to lock the cable 9 .

[0050] Specifically, in order to solve the problems that the existing cable control mechanism has poor accuracy, virtual displacement is often generated during the cable movement process, and some designs need to be processed with high precision or have complex structural designs to improve the accuracy, which greatly increases the cost of mechanism development and reduces the maintainability. The utility model provides a high-precision and reliable cable control mechanism for an unmanned aerial vehicle. The rotating drive member 15 can be a servo, the inner diameter of the cable jacket 14 is slightly larger than the diameter of the cable 9, the outer portion of the cable jacket 14 is a rubber material with a certain compressibility, the connecting member 2 of the cable control mechanism is rotatably connected to the other end of the rocker arm 1, the first through hole of the connecting member 2 is used to pass the cable 9, the locking mechanism on the connecting member 2 is used to lock the cable 9, the connecting member 2 can rotate during the revolution of the rocker arm 1 around the output end of the rotating drive member 15, and the position where the cable 9 passes through the first through hole is always kept in a horizontal straight line state, the cable 9 will not bend, and thus, the virtual displacement generated by the cable 9 during the movement is eliminated, the control accuracy is improved, and the structure of the cable control mechanism is simple, which is conducive to reducing the overall weight and can reduce the development cost.

[0051] Preferably, the connecting member 2 is a cable screw, the first through hole is arranged at a nut position close to the cable screw, the other end of the rocker arm 1 is provided with an assembly hole 101, the cable screw is rotatably connected in the assembly hole 101, and the first through hole is arranged on the outside of the assembly hole 101.

[0052] Specifically, a portion of the side wall of the cable screw close to the nut is a smooth side wall, a portion of the side wall of the cable screw away from the nut is provided with threads, and the first through hole is arranged on the smooth side wall of the cable screw.

[0053] like Figure 3 and Figure 4 As shown, preferably, the locking mechanism comprises:

[0054] A collar 3, one end of which is provided with an arc groove 11, the collar 3 is sleeved on the cable screw, and the other end of the collar 3 is fitted on the nut position of the cable screw;

[0055] The sleeve 4 has an arc groove 11 at one end thereof, the sleeve 4 is sleeved on the cable screw, one end of the sleeve 4 is fitted on one end of the collar 3, the arc groove 11 on the sleeve 4 and the arc groove 11 on the collar 3 are both connected to the first through hole, and the cable 9 is clamped between the two arc grooves 11, and the sleeve 4 is rotatably connected in the assembly hole 101;

[0056] The gasket 5 is sleeved on the cable screw, and the gasket 5 is attached to the other end of the sleeve 4;

[0057] The cable nut 6 is threadedly connected to the cable screw, and the cable nut 6 is attached to the gasket 5.

[0058] Specifically, the cable nut 6 can be a self-locking nut, the sleeve 4 can be a bearing, the arc groove 11 on the sleeve 4 and the arc groove 11 on the ring 3 have the same size, the ring 3 and the sleeve 4 are sleeved on the smooth side wall of the cable screw, and the cable nut 6 is threadedly connected to the threaded position of the cable screw. When the cable nut 6 is screwed in the direction of the nut, the sleeve 4 will be squeezed in the direction of the ring 3. At this time, the two arc grooves 11 will clamp the cable 9, and the cable 9 will not slide. The locking mechanism improves the reliability of the use of the cable 9.

[0059] The rotating structure of the sleeve 4 and the rocker arm 1 can be applied to small diameter series occasions, which effectively solves the problem that rolling bearings cannot be applied to small diameter occasions.

[0060] like Fig. 9 and Fig.10 As shown, preferably, the sleeve 4 includes a first cylinder 401 and a second cylinder 402, one end of the first cylinder 401 is connected to one end of the second cylinder 402, the outer diameter of the second cylinder 402 is larger than the outer diameter of the first cylinder 401, the arc groove 11 is arranged at the other end of the second cylinder 402, the inner wall of the first cylinder 401 and the inner wall of the second cylinder 402 are connected with the cable screw by interference fit, and the outer wall of the first cylinder 401 is connected with the assembly hole 101 by clearance fit.

[0061] Specifically, the outer diameter of the gasket 5 is larger than the diameter of the assembly hole 101, and the length of the first cylinder 401 is larger than the thickness of the rocker arm 1. At this time, the rocker arm 1 is restricted to rotate on the first cylinder 401 between the second cylinder 402 and the gasket 5, which can avoid contact between the rocker arm 1 and the cable 9, thereby improving the reliability of the use of the cable.

[0062] like Figure 8 As shown, preferably, a notch is provided at one end of the rocker arm 1, first mounting holes 102 are provided on both sides of the notch 1, a second mounting hole 103 is provided at the bottom of the notch, the second mounting hole 103 is square, and the second mounting hole 103 is sleeved on the output end of the rotating drive member 15, a rocker screw is passed through the first mounting hole 102, and the rocker screw 7 is threadedly connected with a rocker nut 8, when the rocker nut 8 is screwed in the direction of the nut of the rocker screw 7, the width of the notch gradually decreases, and the second mounting hole 103 can clamp the output end of the rotating drive member 15.

[0063] Specifically, the notch is in the shape of a long strip. When the rocker arm 1 is connected to the output end of the rotating drive member 15, it is first connected to the output end of the rotating drive member 15 through the second mounting hole 103, and then the rocker arm screw 7 is passed through the first mounting hole 102 and threadedly connected to the rocker arm nut 8. At this time, the notch can be deformed under the cooperation of the rocker arm nut 8 and the rocker arm screw 7, and the second mounting hole 103 and the output end of the rotating drive member 15 are clamped to a gap-free state, thereby realizing the connection between the rotating drive member 15 and the rocker arm 1.

[0064] Preferably, the output end of the rotary drive member 15 is square, and the square second mounting hole 103 is sleeved on the square output end of the rotary drive member 15 .

[0065] Specifically, the square second mounting hole 103 is connected to the square output end of the rotary drive member 15, so as to achieve a tight connection without any gap between the two, thereby avoiding slippage and improving the reliability of the connection during the rotation process.

[0066] like Figure 4-Figure 7 As shown, preferably, a second through hole is provided on one side of the bracket, and the high-precision and reliable cable control mechanism of the UAV also includes a connecting mechanism, which is connected to the second through hole position and is used to connect to one end of the cable jacket 14.

[0067] Specifically, the connection mechanism is used to connect one end of the cable jacket 14 to the bracket.

[0068] Preferably, the connection mechanism comprises:

[0069] A cable limiting cylinder 10, the outer wall of which is provided with an external thread, and the cable limiting cylinder 10 is penetrated by a second through hole;

[0070] Two limiting nuts 12, the two limiting nuts 12 are threadedly connected to the cable limiting cylinder 10, and the two limiting nuts 12 are respectively attached to the bracket and located on both sides of the second through hole;

[0071] A fastening sleeve 13, one end of which is used to be screwed into one end of a cable sleeve 14, and the other end of the fastening sleeve 13 is provided with an internal thread, and the end of the cable limiting cylinder 10 away from the rocker arm 1 is threadedly connected with the other end of the fastening sleeve 13;

[0072] The outer sleeve limiting ring 18 is sleeved and fastened on one end of the cable outer sleeve 14, and the outer sleeve limiting ring 18 is clamped on the inner surface of one end of the fastening sleeve 13. The cable 9 passes through the cable limiting cylinder 10, the fastening sleeve 13 and the cable outer sleeve 14 in sequence, and a gap is formed between the inner side wall of the cable limiting cylinder 10 and the cable 9.

[0073] Specifically, when the two limit nuts 12 are respectively attached to the bracket and located on both sides of the second through hole, the cable limit tube 10 can be fixed on the bracket, and the inner diameter of one end of the fastening sleeve 13 is the same as the outer diameter of the cable sleeve 14. The sleeve limit ring 18 is sleeved and fastened on one end of the cable sleeve 14, and the sleeve limit ring 18 is clamped on the inner surface of one end of the fastening sleeve 13. At this time, the cable 9 can be reliably connected to the bracket, and a gap is formed between the inner side wall of the cable limit tube 10 and the cable 9. The cable 9 will not generate friction with the cable limit tube 10 during movement. During long-term use, the cable 9 is not easy to break, which improves the reliability of the use of the cable 9.

[0074] Preferably, the axis of the cable limiting cylinder 10 and the axis of the fastening sleeve 13 are located on the same straight line, the inner diameter of one end of the fastening sleeve 13 is the same as the inner diameter of the outer sleeve limiting ring 18, and the outer diameter of the outer sleeve limiting ring 18 is smaller than the inner diameter of the other end of the fastening sleeve 13. When the outer sleeve limiting ring 18 is crimped and deformed, the outer sleeve limiting ring 18 is tightly connected to one end of the cable sleeve 14.

[0075] Specifically, the outer sleeve limiting ring 18 is a thin-walled circular ring structure, and the outer diameter of the outer sleeve limiting ring 18 is smaller than the inner diameter of the other end of the fastening sleeve 13 , so that the outer sleeve limiting ring 18 can be installed from the other end of the fastening sleeve 13 .

[0076] Preferably, when the rocker arm 1 and the cable 9 are in a vertical state, the axis of the first through hole and the axis of the cable limiting cylinder 10 are located on the same straight line.

[0077] Preferably, the bracket includes a first bracket 16 and a second bracket 17, the second bracket 17 is triangular, one corner end of the triangular second bracket 17 is connected to one side of the first bracket 16, the second through hole is arranged at the other corner end of the triangular second bracket 17, and the servo is connected to the first bracket 16.

[0078] In summary, when the high-precision and reliable cable control mechanism of the UAV provided by the utility model is implemented, the servo is first fixed on the first bracket 16, connected to the output end of the rotary drive member 15 through the second mounting hole 103, and the rocker screw is passed through the first mounting hole 102 and threadedly connected to the rocker nut 8. At this time, the notch can be deformed under the cooperation of the rocker nut 8 and the rocker screw 7, and the second mounting hole 103 and the output end of the rotary drive member 15 are clamped to a gap-free state;

[0079] The collar 3 and the sleeve 4 are sequentially sleeved on the cable screw, the sleeve 4 is rotated and connected in the assembly hole 101, and then the gasket 5 is sleeved on the cable screw and fits with the sleeve 4, and then the cable nut 6 is threadedly connected to the cable screw;

[0080] One of the limiting nuts 12 is threadedly connected to the cable limiting cylinder 10, and the cable limiting cylinder 10 passes through the second through hole, and the other limiting nut 12 is threadedly connected to the cable limiting cylinder 10, and the two limiting nuts 12 are rotated to fit with the bracket, so that the cable limiting cylinder 10 is fixed to the bracket;

[0081] Screw one end of the cable jacket 14 into one end of the fastening sleeve 13, and insert the jacket limiting ring 18 into one end of the cable jacket 14, slightly press the jacket limiting ring 18 to deform it, so that the jacket limiting ring 18 is fixed on one end of the cable jacket 14, pull the cable jacket 14 away from the cable limiting cylinder 10, so that the cable jacket 14 is stuck on the inner surface of one end of the fastening sleeve 13, and then, the other end of the fastening sleeve 13 is threadedly connected with the cable limiting cylinder 10;

[0082] Pass the cable 9 through the first through hole of the cable screw, and pass through the cable limiting cylinder 10, the fastening sleeve 13 and the cable outer sleeve 14 in sequence;

[0083] The cable nut 6 is tightened with the cable screw so that the arc groove 11 on the sleeve 4 and the arc groove 11 on the collar 3 clamp the cable 9;

[0084] The servo outputs a rotational motion, driving the rocker arm 1 to rotate. At this time, the cable screw and the sleeve 4 rotate together in the assembly hole 101, always keeping the cable 9 at the cable screw in a horizontal straight line state, and during the entire movement process, the cable 9 will not contact the cable limit cylinder 10. At this point, the cable 9 outputs a horizontal straight line motion.

[0085] In the utility model, the rocker arm 1 is connected to the servo by clamping, and the cable screw can rotate during the revolution of the rocker arm 1 around the servo, so that the cable 9 is always kept in a horizontal straight line state at the position of the cable screw, thereby eliminating the virtual displacement of the cable 9 during movement and improving the control accuracy; the cable 9 is clamped by two arc grooves 11 and will not rub against the cable limit cylinder 10 during movement, thereby improving the reliability of the use of the cable 9; the displacement of the cable jacket 14 is limited by the connecting mechanism to avoid the cable jacket 14 from falling off. Therefore, the structural form of the utility model is simple, which is conducive to improving the accuracy of the cable control mechanism, reducing the structural weight, and reducing the cost of the cable control mechanism; the utility model can be applied to drones of various specifications.

[0086] The various embodiments of the utility model have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A high-precision and reliable cable operating mechanism for an unmanned aerial vehicle, the cable operating mechanism is used to pull a cable, the cable is slidably connected in a cable jacket, and is characterized in that: The operating mechanism includes: A bracket, one side of which is used to connect with one end of the cable jacket; A rotary drive member connected to the other side of the bracket; A rocker arm, one end of which is connected to the output end of the rotary drive member; A connecting member, the connecting member is rotatably connected to the other end of the rocker arm, a first through hole is provided on a side wall of the connecting member, the first through hole is used to pass a cable, and when the rocker arm and the cable are in a vertical state, the axis of the first through hole and the center of one end of the cable jacket are located on the same straight line; A locking mechanism is arranged on the connecting piece and is used to lock the cable.

2. The high-precision and reliable cable control mechanism for UAV according to claim 1 is characterized in that: The connecting member is a cable screw, the first through hole is arranged at a nut position close to the cable screw, the other end of the rocker arm is provided with an assembly hole, the cable screw is rotatably connected in the assembly hole, and the first through hole is arranged outside the assembly hole.

3. The high-precision and reliable cable control mechanism for unmanned aerial vehicles according to claim 2 is characterized in that: The locking mechanism comprises: A collar, one end of which is provided with an arc groove, the collar is sleeved on the cable screw, and the other end of the collar is fitted on the nut position of the cable screw; A sleeve, one end of which is provided with an arc groove, the sleeve is sleeved on the cable screw, one end of the sleeve is fitted on one end of the collar, the arc groove on the sleeve and the arc groove on the collar are both connected to the first through hole, and the cable is clamped between the two arc grooves, and the sleeve is rotatably connected in the assembly hole; A gasket, which is sleeved on the cable screw and is attached to the other end of the sleeve; A cable nut is threadedly connected to the cable screw and is fitted onto the gasket.

4. The high-precision and reliable cable control mechanism for unmanned aerial vehicles according to claim 3 is characterized in that: The sleeve includes a first cylinder and a second cylinder, one end of the first cylinder is connected to one end of the second cylinder, the outer diameter of the second cylinder is larger than the outer diameter of the first cylinder, the arc groove is arranged at the other end of the second cylinder, the inner side wall of the first cylinder and the inner side wall of the second cylinder are connected with the cable screw by interference fit, and the outer side wall of the first cylinder is connected with the assembly hole by clearance fit.

5. The high-precision and reliable cable control mechanism for unmanned aerial vehicles according to claim 1 is characterized in that: A notch is provided at one end of the rocker arm, first mounting holes are provided on both sides of the notch, a second mounting hole is provided at the bottom of the notch, the second mounting hole is square, the second mounting hole is sleeved on the output end of the rotary drive component, a rocker screw is passed through the first mounting hole, the rocker screw is threadedly connected with a rocker nut, when the rocker nut is screwed in the direction of the nut of the rocker screw, the width of the notch gradually decreases, and the second mounting hole can clamp the output end of the rotary drive component.

6. The high-precision and reliable cable control mechanism for UAV according to claim 5, characterized in that: The output end of the rotary drive member is square, and the second square mounting hole is sleeved on the square output end of the rotary drive member.

7. The high-precision and reliable cable control mechanism for UAV according to claim 1 is characterized in that: A second through hole is provided on one side of the bracket, and the high-precision and reliable cable operating mechanism of the UAV also includes a connecting mechanism, which is connected to the position of the second through hole and is used to connect with one end of the cable jacket.

8. The high-precision and reliable cable control mechanism for UAV according to claim 7, characterized in that: The bridging institutions include: A cable limiting cylinder, wherein the outer wall of the cable limiting cylinder is provided with an external thread, and the cable limiting cylinder is penetrated by the second through hole; Two limiting nuts, the two limiting nuts are threadedly connected to the cable limiting cylinder, the two limiting nuts are respectively attached to the bracket and are located at two sides of the second through hole; A fastening sleeve, one end of which is used to be screwed into one end of the cable sleeve, the other end of which is provided with an internal thread, and one end of the cable limiting cylinder away from the rocker arm is threadedly connected with the other end of the fastening sleeve; The outer sleeve limiting ring is sleeved and fastened to one end of the cable outer sleeve, and the outer sleeve limiting ring is clamped on the inner surface of one end of the fastening sleeve. The cable passes through the cable limiting cylinder, the fastening sleeve and the cable outer sleeve in sequence, and a gap is formed between the inner side wall of the cable limiting cylinder and the cable.

9. The high-precision and reliable cable control mechanism for unmanned aerial vehicles according to claim 8, characterized in that: The axis of the cable limiting cylinder is located on the same straight line as the axis of the fastening sleeve, the inner diameter of one end of the fastening sleeve is the same as the inner diameter of the outer sleeve limiting ring, the outer diameter of the outer sleeve limiting ring is smaller than the inner diameter of the other end of the fastening sleeve, and when the outer sleeve limiting ring is crimped and deformed, the outer sleeve limiting ring is tightly connected to one end of the cable outer sleeve.

10. The high-precision and reliable cable control mechanism for UAV according to claim 9, characterized in that: When the rocker arm and the cable are in a vertical state, the axis of the first through hole and the axis of the cable limiting cylinder are located on the same straight line.

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