Unmanned aerial vehicle take-up and pay-off device

Abstract

The utility model discloses an unmanned aerial vehicle take-up and pay-off device, and relates to the technical field of unmanned aerial vehicles, the device comprises a supporting frame, a winding mechanism is arranged on the supporting frame, the winding mechanism comprises a take-up and pay-off wheel used for take-up and pay-off of a cable, and the free end of the cable is connected with relief goods; the traction mechanism is arranged on the supporting frame and comprises a guide part moving in the first direction. The rotary telescopic mechanism is rotationally connected with the end, away from the winding mechanism, of the traction mechanism; the rotary telescopic mechanism comprises a first driving piece arranged on the traction mechanism, a connecting shaft is arranged at the driving end of the first driving piece, and a fixing base is installed on the connecting shaft. An electric push rod and a telescopic hollow pipe are arranged on the fixed seat, and the cable penetrates through the telescopic hollow pipe; the pushing end of the electric push rod is connected with the telescopic hollow pipe and used for driving the telescopic hollow pipe to move. The first driving part is used for driving the fixing seat to rotate to form a target included angle between the electric push rod and the top of the supporting frame; therefore, the device has the advantages of high integration level and high universality.

Description

Technical Field

[0001] This application generally relates to the field of unmanned aerial vehicle (UAV) technology, and specifically to a UAV cable reeling and laying device. Background Technology

[0002] Unmanned aerial vehicles (UAVs) are widely used in various fields due to their high maneuverability, flexible operation, and ability to fly in complex environments. The demand is particularly increasing in fire and rescue operations, where UAV-equipped cable reeling devices are primarily used to drop relief supplies into trapped areas during rescue operations. However, on the one hand, most cable reeling devices are designed specifically for particular UAV specifications, meaning one device is only compatible with one type of UAV, resulting in extremely limited versatility. On the other hand, in existing technologies, these devices are often bulky and heavy to avoid interference with the rear propellers of the UAVs they are compatible with. This not only leads to low integration but also negatively impacts the UAV's flight performance. Summary of the Invention

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a drone cable reeling and laying device with high integration and strong versatility.

[0004] This application provides a drone cable reeling and launching device, applied to a drone, the device comprising:

[0005] A support frame is provided with a winding mechanism, which includes a winding wheel for winding and unwinding cables, and the free end of the cables is connected to the rescue supplies.

[0006] A traction mechanism is disposed on the support frame; the traction mechanism includes a guide portion that moves along a first direction, the first direction being perpendicular to the moving direction of the cable;

[0007] A rotating telescopic mechanism is rotatably connected to the end of the traction mechanism away from the winding mechanism. The rotating telescopic mechanism includes: a first driving member disposed on the traction mechanism; the driving end of the first driving member is provided with a connecting shaft, and a fixed seat is mounted on the connecting shaft; the fixed seat is provided with an electric push rod and a telescopic hollow tube, and the cable passes through the telescopic hollow tube; the pushing end of the electric push rod is connected to the telescopic hollow tube and is used to drive the telescopic hollow tube to move; the first driving member is used to drive the fixed seat to rotate so that the electric push rod and the top of the support frame form a target angle.

[0008] According to the technical solution provided in the embodiments of this application, the winding mechanism includes:

[0009] Two bearing seats are provided on the top of the support frame; a rotatable support bearing is mounted on the bearing seat and the support bearing is connected to the end of the axle of the take-up and release wheel;

[0010] A second driving component is mounted on the support frame;

[0011] A first drive wheel and a second drive wheel are connected by a transmission belt. The first drive wheel is disposed at the drive end of the second drive component, and the second drive wheel is disposed on the axle of the take-up and release wheel.

[0012] The driving force of the second driving member is transmitted to the take-up and release wheel via the first driving wheel, the transmission belt and the second driving wheel, thereby driving the take-up and release wheel to rotate.

[0013] According to the technical solution provided in the embodiments of this application, the support frame is further provided with a first tensioner, which is in contact with the transmission belt surface.

[0014] According to the technical solution provided in the embodiments of this application, the traction mechanism includes:

[0015] A sliding assembly, the sliding assembly including a support that moves along a first direction;

[0016] A guiding assembly is disposed on the support base; the guiding assembly includes: a mounting bracket disposed on the top of the support base and a third driving member, and a traction wheel disposed on the side wall of the support base; the driving end of the third driving member is provided with a driving wheel, and a driven wheel is rotatably connected to the mounting bracket; there is a guiding gap between the driving wheel and the driven wheel to accommodate the cable passing through; the cable passes through the guiding gap after passing through the traction wheel;

[0017] The driving wheel, the driven wheel, and the traction wheel together form the guide section.

[0018] According to the technical solution provided in the embodiments of this application, the guiding component further includes: an adjustment structure;

[0019] The adjustment structure includes:

[0020] An adjusting slider is slidably connected to the mounting bracket, and the adjusting slider is rotatably connected to the driven wheel;

[0021] An adjusting bolt passes through the mounting bracket and is rotatably connected to the side wall of the adjusting slider, thereby moving the adjusting slider and changing the clearance of the guide gap.

[0022] According to the technical solution provided in the embodiments of this application, the sliding component includes:

[0023] A base plate is mounted on the support frame; a fourth driving component is provided on the base plate, and a lead screw is provided at the driving end of the fourth driving component, and the lead screw is pulsatorically connected to the bearing seat.

[0024] The sliding assembly includes a base plate disposed on the support frame and a bearing seat that slides relative to the base plate. A third driving member is provided on the base plate, and a lead screw is provided at the driving end of the third driving member, and the lead screw is throttlely connected to the bearing seat.

[0025] The technical solution provided according to the embodiments of this application also includes:

[0026] The control unit is mounted on the support frame and is communicatively connected to the UAV's control system, the traction mechanism, and the rotary telescopic mechanism. It is used to control the corresponding mechanism actions according to the signals sent by the UAV's control system.

[0027] According to the technical solution provided in the embodiments of this application, the support frame is provided with a reinforcing member at the frame connection position.

[0028] As can be seen from the above technical solution, this application has at least the following beneficial effects:

[0029] This application provides a drone cable deployment and retrieval device, comprising: a support frame with a cable winding mechanism, the cable winding mechanism including a cable winding wheel for deploying and retrieving cables, the free end of the cable being connected to rescue supplies; a traction mechanism mounted on the support frame; the traction mechanism including a guide portion that moves along a first direction, the first direction being perpendicular to the direction of cable movement; and a rotary telescopic mechanism rotatably connected to the end of the traction mechanism away from the cable winding mechanism; the rotary telescopic mechanism includes: a first drive member mounted on the traction mechanism, the drive end of the first drive member having a connecting shaft, and a fixed seat mounted on the connecting shaft; an electric push rod and a telescopic hollow tube mounted on the fixed seat, the cable passing through the telescopic hollow tube; the push end of the electric push rod being connected to the telescopic hollow tube for driving the telescopic hollow tube to move; and the first drive member for driving the fixed seat to rotate so that the electric push rod and the top of the support frame form a target angle.

[0030] This application utilizes a first driving component in a rotary telescopic mechanism to rotate a fixed base, creating a target angle between the electric push rod and the top of the support frame. Simultaneously, the electric push rod moves the telescopic hollow tube, altering the cable's extension length and angle. Combined with a guide component in the traction mechanism that moves in a first direction perpendicular to the cable's movement, the position and angle of the cable and connected rescue supplies can be precisely adjusted from multiple dimensions. Furthermore, in different operational scenarios, the rotary telescopic mechanism can adjust the cable's extension angle to avoid obstacles and drone propellers, while the traction mechanism can adjust the cable's vertical position via the guide component, ensuring the cable extends smoothly to the target point. This enhances the device's adaptability, enabling it to complete rescue supply delivery missions under various complex conditions. Additionally, integrating the winding mechanism, traction mechanism, and rotary telescopic mechanism onto the support frame increases the overall integration of the device's layout. Attached Figure Description

[0031] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0032] Figure 1 This is a schematic diagram of the overall structure of the drone's cable reeling and laying device.

[0033] Figure 2 This is a schematic diagram of a winding mechanism.

[0034] Figure 3 This is a schematic diagram of the traction mechanism.

[0035] Figure 4 This is a schematic diagram of a rotary telescopic mechanism.

[0036] Figure 5 This is a schematic diagram of the supporting framework.

[0037] The following are the labeling elements in the diagram: 1. Support frame; 2. Retracting wheel; 3. First drive component; 4. Connecting shaft; 5. Fixed seat; 6. Electric push rod; 7. Telescopic hollow tube; 8. Bearing seat; 9. Second drive component; 10. Transmission belt; 11. First tensioner; 12. Bearing seat; 13. Mounting bracket; 14. Third drive component; 15. Drive wheel; 16. Driven wheel; 17. Traction wheel; 18. Adjusting slider; 19. Adjusting bolt; 20. Base plate; 21. Fourth drive component; 22. Lead screw; 23. Reinforcing member; 24. First drive wheel; 25. Second drive wheel. Detailed Implementation

[0038] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0039] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0040] like Figure 1 As shown, this application provides a drone cable reeling and launching device, applied to a drone, the device comprising:

[0041] Support frame 1, the support frame 1 is equipped with a winding mechanism, the winding mechanism includes a winding wheel 2 for winding and unwinding the cable, the free end of the cable is connected to the rescue supplies;

[0042] A traction mechanism is mounted on the support frame 1; the traction mechanism includes a guide part that moves along a first direction, which is perpendicular to the direction of movement of the cable.

[0043] A rotating telescopic mechanism is rotatably connected to the end of the traction mechanism away from the winding mechanism. The rotating telescopic mechanism includes: a first driving member 3 disposed on the traction mechanism; the driving end of the first driving member 3 is provided with a connecting shaft 4, and a fixed seat 5 is mounted on the connecting shaft 4; an electric push rod 6 and a telescopic hollow tube 7 are disposed on the fixed seat 5, and a cable passes through the telescopic hollow tube 7; the pushing end of the electric push rod 6 is connected to the telescopic hollow tube 7 and is used to drive the telescopic hollow tube 7 to move; the first driving member 3 is used to drive the fixed seat 5 to rotate so that the electric push rod 6 and the top of the support frame 1 form a target angle.

[0044] It should be noted that this device is mainly used to meet the cable laying and retraction needs of drones in related operations (such as dropping relief supplies). It can also be applied in other fields. For example, in power engineering, it can assist drones in carrying detection equipment to approach the line during the maintenance of high-voltage lines, and can also control the laying and retraction of cables when laying lines. In the field of communications, it can be used for the construction and maintenance of communication base stations, and can be used to quickly and accurately complete the laying and connection of communication cables.

[0045] Support frame 1, as the basic structural component of the entire device, serves to support other mechanisms, providing physical support for the entire wire take-up and unwinding device and ensuring that each mechanism can be stably installed and operate normally. Here, as... Figure 5As shown, a reinforcing member 23 is provided at the frame connection position of the support frame 1. The reinforcing member 23 is, for example, a triangular support plate. A cable winding mechanism is provided on the support frame 1, which includes a take-up and release wheel 2 for taking up and releasing the cable. During the cable take-up and release process, the cable is wound in an orderly manner by rotation. For example, the cable is released when it is released and wound back when it is retrieved. Furthermore, the free end of the cable is connected to the rescue supplies. In this way, by operating the cable through the take-up and release wheel 2, the drone can indirectly control the placement location of the rescue supplies. For example, in a rescue scenario, the rescue supplies can be accurately placed at the required location.

[0046] The traction mechanism is installed on the support frame 1. It includes a guide part that moves along a first direction. The first direction is perpendicular to the direction of cable movement. The guide part guides and constrains the movement of the cable to ensure that it moves smoothly in the corresponding direction.

[0047] like Figure 4 As shown, the rotating telescopic mechanism is rotatably connected to the end of the traction mechanism away from the winding mechanism, allowing it to change its angle within a certain range, thus better adapting to the requirements of cable posture and other aspects under different operating scenarios. The first driving component 3 is mounted on the traction mechanism, and its driving end has a connecting shaft 4. The first driving component 3 drives the connecting shaft 4 to rotate, which in turn drives the entire fixed base 5 to rotate, ultimately achieving a target angle between the electric push rod 6 and the top of the support frame 1. Here, the target angle refers to the angle that allows the cable to be retracted and extended normally without interfering with the drone propellers; it can be set according to actual conditions.

[0048] For example, when deploying relief supplies, the first drive component 3 can adjust the appropriate angle based on the actual location and altitude of the deployment site to ensure that the cable and relief supplies arrive at the target location with the best posture and angle, and also to avoid interference between the device and the drone propellers. The fixed base 5 serves as the supporting component, on which an electric push rod 6 and a telescopic hollow tube 7 are mounted. The cable passes through the telescopic hollow tube 7, and the pushing end of the electric push rod 6 is connected to the telescopic hollow tube 7. When the electric push rod 6 operates, the extension and retraction of its pushing end will cause the telescopic hollow tube 7 to move synchronously. For example, during deployment, the electric push rod 6 can extend or shorten as needed, changing the position of the telescopic hollow tube 7, thereby adjusting the extension length and angle of the cable, and working in conjunction with the overall device to achieve precise control over the deployment location and process of the relief supplies. Here, the first drive component 3 is, for example, a servo drive motor.

[0049] This application, through the coordinated operation of a traction mechanism and a rotary telescopic mechanism set on the support frame, enables flexible cable retraction and extension operations when the UAV performs rescue material delivery missions. It can also precisely adjust the position and angle of the cable to ensure that the cable and rescue materials can reach the target location in the best attitude and angle. Furthermore, it can avoid interference between the device and the UAV propellers; it has the advantages of high integration and strong versatility.

[0050] Furthermore, such as Figure 2 As shown, the winding mechanism includes:

[0051] Two bearing seats 8 are provided on the top of the support frame 1; rotatable support bearings are installed on the bearing seats 8, and the support bearings are connected to the axle end of the take-up and release wheels 2.

[0052] The second drive component 9 is mounted on the support frame 1;

[0053] A first drive wheel 24 and a second drive wheel 25 are connected by a transmission belt 10. The first drive wheel 24 is disposed at the drive end of the second drive member 9, and the second drive wheel 25 is disposed on the axle of the take-up and release wheel 2.

[0054] The driving force of the second driving component 9 is transmitted to the take-up and release wheel 2 via the first driving wheel 24, the transmission belt 10 and the second driving wheel 25, thereby driving the take-up and release wheel 2 to rotate.

[0055] It should be noted that two bearing seats 8 are set on the top of the support frame 1. Rotatable support bearings are installed on the bearing seats 8. On the one hand, the support bearings are tightly fitted with the bearing seats 8 and rely on the bearing seats 8 to achieve stable positioning. On the other hand, they are connected to the end of the axle of the take-up and release wheel 2, so that the take-up and release wheel 2 can rotate smoothly with the axle as the axis and under the support of the support bearings, ensuring the stability of the cable take-up and release process.

[0056] The second drive component 9 is mounted on the support frame 1 and serves as the power source in the winding mechanism, providing driving force for the rotation of the take-up and release reel 2. The first drive wheel 24 is located at the drive end of the second drive component 9 and rotates along with it. The second drive wheel 25 is mounted on the axle of the take-up and release reel 2, and its rotation directly drives the reel 2 to rotate synchronously. The first drive wheel 24 and the second drive wheel 25 are connected by a transmission belt 10. When the second drive component 9 is activated, the first drive wheel 24 begins to rotate. Through the flexible connection and transmission effect of the transmission belt 10, it drives the second drive wheel 25 to rotate, thereby causing the take-up and release reel 2 to rotate as well. This process smoothly transmits the driving force of the second drive component 9 to the take-up and release reel 2, thus completing the cable take-up and release operation. Here, the second drive component 9 can be, for example, a servo drive motor.

[0057] In addition, such as Figure 2 As shown, the support frame 1 is also equipped with a first tensioner 11, which contacts the drive belt 10. Here, with increased usage time, component wear, and changes in the force on the drive belt 10 under different working conditions, the drive belt 10 may become loose. This can lead to slippage during transmission, affecting the power transmission effect and consequently impacting the normal rotation of the take-up / delivery wheel 2 and the cable take-up / delivery operation. The function of the first tensioner 11 is to apply appropriate pressure to the drive belt 10 through surface contact, maintaining it at a suitable tension to prevent the aforementioned problems. This ensures the continuous, stable, and efficient operation of the entire transmission system, guaranteeing the reliable completion of the task by the cable take-up / delivery device.

[0058] Furthermore, such as Figure 1 and Figure 3 As shown, the traction mechanism includes:

[0059] A sliding assembly, the sliding assembly including a support 12 that moves along a first direction;

[0060] A guide assembly is mounted on a support 12. The guide assembly includes a mounting bracket 13 and a third drive member 14 mounted on the top of the support 12, and a traction wheel 17 mounted on the side wall of the support 12. The drive end of the third drive member 14 is provided with a drive wheel 15, and a driven wheel 16 is rotatably connected to the mounting bracket 13. There is a guide gap between the drive wheel 15 and the driven wheel 16 to accommodate the cable passing through. The cable passes through the guide gap after passing through the traction wheel 17.

[0061] It should be noted that the guiding component is mounted on the support base 12, which serves as the foundation for the guiding component and connects it to the sliding component, allowing it to move in the first direction along with the support base 12. A mounting bracket 13 and a third driving component 14 are mounted on the top of the support base 12, and traction wheels 17 are mounted on the side wall of the support base 12. These components work together to guide the cable. Specifically, the driving end of the third driving component 14 has a driving wheel 15, and a driven wheel 16 is rotatably connected to the mounting bracket 13. A guiding gap exists between the driving wheel 15 and the driven wheel 16 to accommodate the cable passing through. When the third driving component 14 operates, it drives the driving wheel 15 to rotate. The driving wheel 15, in cooperation with the driven wheel 16, uses the guiding gap between them to guide the cable's movement. The cable can move along a set path and direction within this gap, and under the influence of the rotating driving wheel 15, it can achieve a certain degree of orderly transport, ensuring smoother cable operation throughout the device and preventing cable tangling, knots, and other problems. It also helps to accurately control the cable's direction. Here, the third driving component 14 is, for example, a servo drive motor.

[0062] Furthermore, the guiding components also include: adjustment structure;

[0063] like Figure 1 and Figure 3 As shown, the adjustment structure includes:

[0064] Adjusting slider 18 is slidably connected to mounting bracket 13, and adjusting slider 18 is rotatably connected to driven wheel 16;

[0065] Adjusting bolt 19 passes through mounting bracket 13 and is rotatably connected to the side wall of adjusting slider 18, and is used to drive adjusting slider 18 to move, thereby changing the gap of guide clearance;

[0066] The driving wheel 15, the driven wheel 16, and the traction wheel 17 together form the guide section.

[0067] It should be noted that the adjusting slider 18 is slidably connected to the mounting bracket 13 and also rotatably connected to the driven wheel 16, allowing the adjusting slider 18 to slide relative to the mounting bracket 13. This simultaneously moves the driven wheel 16, thereby changing its position relative to the driving wheel 15. The adjusting bolt 19 passes through the mounting bracket 13 and is rotatably connected to the side wall of the adjusting slider 18. By rotating the adjusting bolt 19, its connection with the adjusting slider 18 can be used to move the adjusting slider 18 along the mounting bracket 13. This allows the size of the guide gap between the driving wheel 15 and the driven wheel 16 to be changed according to the actual cable thickness and the required guide tightness. For example, when the cable is thicker, the gap can be increased to ensure the cable passes smoothly without being excessively compressed; when a tighter guide is needed, the gap can be decreased to improve the accuracy of the guide.

[0068] Here, the traction wheel 17 first guides and constrains the cable, allowing it to enter the guide gap formed by the drive wheel 15 and the driven wheel 16. Then, through the rotational cooperation of the drive wheel 15 and the driven wheel 16 and the adjustable gap setting, the cable is further precisely guided in position and attitude perpendicular to its own direction of movement (i.e., the first direction). This enables the cable to move stably and orderly along the expected route in the entire traction mechanism, providing strong support for the subsequent accurate deployment of rescue supplies by the entire UAV cable delivery and take-up device.

[0069] Furthermore, such as Figure 3 As shown, the sliding component includes:

[0070] The base plate 20 is mounted on the support frame 1; the base plate 20 is provided with a fourth driving member 21, the driving end of the fourth driving member 21 is provided with a lead screw 22, and the lead screw 22 is connected to the bearing seat 12 in a transmission manner.

[0071] The sliding assembly includes a base plate 20 mounted on a support frame 1 and a support seat 12 that slides relative to the base plate 20. A third driving member 14 is provided on the base plate 20, and a lead screw 22 is provided at the driving end of the third driving member 14. The lead screw 22 is connected to the support seat 12 in a transmission manner.

[0072] It should be noted that the base plate 20 is mounted on the support frame 1, serving as the basic load-bearing component of the sliding assembly. The fourth driving component 21 mounted on the base plate 20 serves as the power source for the sliding assembly. Its driving end is equipped with a lead screw 22, which is connected to the support seat 12. When the fourth driving component 21 starts working, it drives the lead screw 22 to rotate. The transmission relationship between the lead screw 22 and the support seat 12 allows the support seat 12 to move linearly along the axial direction of the lead screw 22, which is the first direction. That is, the movement distance and position of the support seat 12 in the first direction can be precisely controlled according to actual needs, thereby driving the guide components and cables mounted on the support seat 12 to make accurate position adjustments in the corresponding direction to meet the requirements for cable posture and deployment position under different conditions. Here, the fourth driving component 21 is, for example, a servo drive motor.

[0073] Furthermore, it also includes a control unit, which is mounted on the support frame 1 and is communicatively connected to the UAV's control system, traction mechanism, and rotary telescopic mechanism. The control unit controls the corresponding mechanism actions based on signals from the UAV's control system. Here, the control unit may be, for example, an electrical control cabinet. For instance, when the UAV flies over the target delivery area, the UAV control system sends a signal to the control unit to prepare for the delivery of relief supplies, providing a basis for the control unit to coordinate the actions of the traction mechanism and the rotary telescopic mechanism.

[0074] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. An unmanned aerial vehicle (UAV) reel device, applied to an unmanned aerial vehicle, characterized in that, The device comprises: a support frame (1) provided with a winding mechanism, the winding mechanism comprising a winding and unwinding wheel (2) for winding and unwinding a cable, a free end of the cable being connected with rescue supplies; a traction mechanism provided on the support frame (1), the traction mechanism comprising a guide part moving in a first direction, the first direction being perpendicular to the moving direction of the cable; a rotary telescopic mechanism rotationally connected with an end of the traction mechanism away from the winding mechanism, the rotary telescopic mechanism comprising a first driving member (3) provided on the traction mechanism, a driving end of the first driving member (3) being provided with a connecting shaft (4), and a fixing seat (5) being mounted on the connecting shaft (4), the fixing seat (5) being provided with an electric push rod (6) and a telescopic hollow pipe (7), the cable penetrating through the telescopic hollow pipe (7), a pushing end of the electric push rod (6) being connected with the telescopic hollow pipe (7) for driving the telescopic hollow pipe (7) to move, the first driving member (3) being used for driving the fixing seat (5) to rotate, so that a target included angle is formed between the electric push rod (6) and the top of the support frame (1).

2. The unmanned aerial vehicle reel device of claim 1, wherein, The winding mechanism comprises: two bearing seats (8) provided on the top of the support frame (1), the bearing seats (8) being provided with rotatable support bearings, and the support bearings being connected with axle ends of the winding and unwinding wheel (2); a second driving member (9) mounted on the support frame (1); a first driving wheel (24) provided at a driving end of the second driving member (9) and a second driving wheel (25) provided on an axle of the winding and unwinding wheel (2), the first driving wheel (24) and the second driving wheel (25) being connected through a transmission belt (10); driving force of the second driving member (9) being transmitted to the winding and unwinding wheel (2) through the first driving wheel (24), the transmission belt (10) and the second driving wheel (25), so as to drive the winding and unwinding wheel (2) to rotate.

3. The unmanned aerial vehicle reel device of claim 2, wherein, The support frame (1) is further provided with a first tensioner (11) in surface contact with the transmission belt (10).

4. The unmanned aerial vehicle reel device of claim 1, wherein, The traction mechanism comprises: a sliding assembly comprising a bearing seat (12) moving in the first direction; a guide assembly provided on the bearing seat (12), the guide assembly comprising a mounting rack (13) and a third driving member (14) provided on the top of the bearing seat (12) and a traction wheel (17) provided on a side wall of the bearing seat (12), a driving end of the third driving member (14) being provided with a driving wheel (15), the mounting rack (13) being rotationally connected with a driven wheel (16), the driving wheel (15) and the driven wheel (16) having a guide gap for accommodating the cable penetrating through, the cable penetrating through the guide gap after the traction wheel (17); The driving wheel (15), the driven wheel (16) and the traction wheel (17) jointly form the guide part.

5. The unmanned aerial vehicle reel device of claim 4, wherein, The guide assembly further comprises an adjusting structure. The adjusting structure comprises: An adjusting sliding block (18) is slidingly connected with the mounting frame (13), and the adjusting sliding block (18) is rotatably connected with the driven wheel (16). An adjusting bolt (19) penetrates through the mounting frame (13) and is rotatably connected with the side wall of the adjusting sliding block (18), for driving the adjusting sliding block (18) to move, so as to change the gap of the guide gap.

6. The unmanned aerial vehicle reel device of claim 4, wherein, The sliding assembly comprises: A bottom plate (20) is arranged on the support frame (1), and a fourth driving member (21) is arranged on the bottom plate (20); a driving end of the fourth driving member (21) is provided with a lead screw (22), and the lead screw (22) is drivingly connected with the bearing seat (12). The sliding assembly comprises a bottom plate (20) arranged on the support frame (1) and a bearing seat (12) sliding relative to the bottom plate (20); a third driving member (14) is arranged on the bottom plate (20); a driving end of the third driving member (14) is provided with a lead screw (22), and the lead screw (22) is drivingly connected with the bearing seat (12).

7. The unmanned aerial vehicle reel device of claim 1, wherein, Further comprising: A control unit is arranged on the support frame (1), and the control unit is in communication connection with the control system of the unmanned aerial vehicle, the traction mechanism and the rotary telescopic mechanism, for controlling the corresponding mechanisms to act according to the signals sent by the control system of the unmanned aerial vehicle.

8. The unmanned aerial vehicle reel device of claim 1, wherein, A reinforcing piece (23) is arranged at the frame body connecting position of the support frame (1).

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