A manual tethered multi-rotor unmanned aerial vehicle reel device

Abstract

The utility model discloses a manual tethered multi-rotor unmanned plane take-up device, including take-up mechanism and with take-up mechanism connection ground power converter. The take-up device includes support, pivot, winding drum, tethered cable, photoelectric slip ring, go through the component of wire, wire arranging screw rod, synchronous transmission mechanism and handle. The pivot and wire arranging screw rod are installed on the support. The middle part of pivot is equipped with winding drum, and both ends are equipped with photoelectric slip ring. The stator and rotor of photoelectric slip ring are connected with ground power converter and tethered cable fixed end respectively. Go through the component of wire of wire arranging screw rod sliding connection, and tethered cable telescopic end passes through the component of wire and is connected with unmanned plane. Ground power converter includes optical terminal, booster board, filter board, fan, ground power cavity and portable control terminal. The utility model can realize unmanned plane and ground control equipment optical fiber information transmission and power transmission, and take-up device has power conversion capacity, can to unmanned plane continuous power supply.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically a manually tethered multi-rotor UAV retrieval device. Background Technology

[0002] Multirotor drones mostly use lithium batteries as their power source. However, due to the limited payload capacity of drones, the lithium batteries used are usually small in capacity and lightweight, resulting in short flight times. Reconnaissance missions generally last no more than 30 minutes. Furthermore, the stability of the wireless data link is susceptible to interference from transmission distance and electromagnetic environment, often leading to control link interruptions, causing drones to lose control, and situations where reconnaissance equipment experiences image transmission delays or even no image transmission at all. Additionally, due to limitations in wireless transmission bandwidth, image compression technology is typically used for data transmission, but data loss occurs during decompression, resulting in poor image clarity in the final display.

[0003] In addition, although there are tethered drone retrieval devices, these devices are generally large and heavy, making them inconvenient to carry around and operate anytime and anywhere, and they also have relatively high requirements for the operating site. Utility Model Content

[0004] The purpose of this invention is to provide a manually tethered multi-rotor drone retrieval device, including a retrieval mechanism and a ground power converter connected to the retrieval mechanism.

[0005] The take-up mechanism includes a bracket, a rotating shaft, a winding drum, a tethering cable, an optoelectronic slip ring, a cable guide assembly, a cable guide screw, a synchronous transmission mechanism, and a handle.

[0006] The bracket and the ground power converter together form a receiving cavity.

[0007] The rotating shaft is housed within the accommodating cavity, with both ends fixed to a bracket. A winding drum is mounted in the middle of the shaft, and a tethering cable is wound around the winding drum. An optoelectronic slip ring is installed at each end of the rotating shaft, and the stator and rotor of the optoelectronic slip ring are respectively connected to the ground power converter and the fixed end of the tethering cable.

[0008] The synchronous transmission mechanism includes a driving wheel and a driven wheel located on the same side, and a belt connecting the driving wheel and the driven wheel. The driving wheel and the driven wheel are respectively fixed on a lead screw and a rotating shaft. Both ends of the lead screw are fixed to a bracket, and a handle is connected to the end that fixes the driving wheel.

[0009] A cable guide assembly is slidably mounted on the cable guide rod. The telescopic end of the tethered cable passes through the cable guide assembly and connects to the drone.

[0010] The ground power converter includes an optical transceiver, a boost board, a filter board, a fan, a ground power chamber, and a portable control terminal.

[0011] The input electrical port and output optical port of the optical transceiver are respectively connected to the stator of the portable control terminal and the photoelectric slip ring.

[0012] A DC power supply is placed inside the ground power supply cavity.

[0013] The input and output terminals of the filter board are connected to the DC power supply and the input terminal of the boost board, respectively. The output terminal of the boost board is connected to the power input interface of the photoelectric slip ring stator.

[0014] Furthermore, the rotating shaft is a tubular structure with a hollow interior and open ends, and is fixed to the bracket by bearings.

[0015] Furthermore, the cable guide screw has a thread in the middle and round rods at both ends, and is fixed to the bracket by bearings.

[0016] Furthermore, the lead screw is arranged parallel to the rotating shaft.

[0017] Furthermore, the tethered cable includes a pair of power supply lines and two optical fibers.

[0018] Furthermore, the DC power supply is a battery pack or a power conversion device connected to 220V AC mains power.

[0019] Furthermore, the booster plate can provide 300-420V DC power.

[0020] Furthermore, the take-up mechanism is connected to the ground power converter via screws.

[0021] The technical effects of this utility model are undeniable, and its beneficial effects are as follows:

[0022] 1. The cable winding device of this utility model is suitable for different environments and terrain conditions, and is small, portable, and can be carried on the back.

[0023] 2. The cable reel device of this utility model can continuously power the drone, thereby enabling uninterrupted missions, long battery life, and easy maintenance;

[0024] 3. The cable reel device of this utility model has a high power conversion capability and can provide power for UAVs to take off and land at an altitude of 5,000 meters.

[0025] 4. The winding device of this utility model is simple and convenient to operate, and can be quickly deployed and retracted. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the wire take-up device;

[0027] Figure 2 This is a front sectional view of the take-up device;

[0028] Figure 3 This is a top sectional view of the take-up device;

[0029] In the diagram: 1. Cable take-up mechanism; 2. Ground power converter; 3. Optical slip ring; 4. Cable holding device; 5. Cable guide assembly; 6. Cable winding screw; 7. Synchronous transmission mechanism; 8. Optical transceiver; 9. Boosting plate; 10. Filter plate; 11. Fan; 12. Ground power cavity; 13. Bracket; 14. Rotating shaft; 15. Handle. Detailed Implementation

[0030] The present invention will be further described below with reference to embodiments, but it should not be construed as the scope of the present invention being limited to the following embodiments. Various substitutions and modifications made based on ordinary technical knowledge and conventional methods in the art without departing from the above-described technical concept of the present invention should be included within the protection scope of the present invention.

[0031] Example 1:

[0032] A manually tethered multi-rotor drone retrieval device includes a retrieval mechanism 1 and a ground power converter 2 connected to the retrieval mechanism 1.

[0033] The take-up mechanism 1 includes a bracket 14, a rotating shaft 15, a winding drum 7, a tethering cable 4, a photoelectric slip ring 3, a cable guide assembly 5, a cable guide screw 6, a synchronous transmission mechanism 8, and a handle 16.

[0034] The bracket 14 and the ground power converter 2 together form a receiving cavity.

[0035] The rotating shaft 15 is disposed within the accommodating cavity, and both ends are fixed to the bracket 14. A winding drum 7 is installed in the middle of the shaft body of the rotating shaft 15, and a tethering cable 4 is wound on the winding drum 7. An optoelectronic slip ring 3 is installed at each end of the rotating shaft 15, and the stator and rotor of the optoelectronic slip ring 3 are respectively connected to the ground power converter 2 and the fixed end of the tethering cable 4.

[0036] The synchronous transmission mechanism 8 includes a driving wheel, a driven wheel, and a belt connecting the driving wheel and the driven wheel on the same side. The driving wheel and the driven wheel are respectively fixed on the lead screw 6 and the rotating shaft 15. Both ends of the lead screw 6 are fixed on the bracket 14, and a handle 16 is also connected to the end that fixes the driving wheel.

[0037] The cable guide assembly 5 is slidably mounted on the cable guide rod 6. The telescopic end of the tethered cable 4 passes through the cable guide assembly 5 and connects to the drone.

[0038] Turning the handle 16 causes the drive wheel and the cable guide screw 6 to rotate together. The cable guide assembly 5 then reciprocates on the cable guide screw 6, and the cable 4 passes through the cable guide assembly 5 and is driven to be evenly distributed on the winding drum 7.

[0039] The ground power converter 2 includes an optical transceiver 9, a boost board 10, a filter board 11, a fan 12, a ground power cavity 13, and a portable control terminal.

[0040] The input electrical port and output optical port of the optical transceiver 9 are respectively connected to the stator of the portable control terminal and the photoelectric slip ring 3.

[0041] A DC power supply is placed inside the ground power supply cavity 13.

[0042] The input and output terminals of the filter board 11 are connected to the DC power supply and the input terminal of the boost board 10, respectively. The output terminal of the boost board 10 is connected to the power input interface of the stator of the photoelectric slip ring 3.

[0043] Example 2:

[0044] The main structure of this embodiment is the same as that of embodiment 1. Furthermore, the rotating shaft 15 is a tubular structure with a hollow interior and open ends, and is fixed to the bracket 14 by bearings.

[0045] Example 3:

[0046] The main structure of this embodiment is the same as any one of embodiments 1 to 2. Furthermore, the cable guide rod 6 has a thread in the middle and round rods at both ends, and is fixed to the bracket 14 by bearings.

[0047] Example 4:

[0048] The main structure of this embodiment is the same as any one of embodiments 1 to 3. Furthermore, the lead screw 6 is arranged parallel to the rotating shaft 15.

[0049] Example 5:

[0050] The main structure of this embodiment is the same as any one of embodiments 1 to 4. Furthermore, the tethered cable 4 is used to provide photoelectric information transmission and power supply for the UAV during flight, including a pair of power supply lines and two optical fibers.

[0051] The rotor end of the photoelectric slip ring 3 is connected to the wire of the tether cable 4 by welding or crimping, and the optical fiber of the tether cable 4 is connected to the optical fiber through the optical fiber adapter.

[0052] The stator end of the photoelectric slip ring 3 is connected to the output end of the boost plate 10 via a wire, and to the output end of the optical transceiver 9 via an optical fiber jumper.

[0053] Example 6:

[0054] The main structure of this embodiment is the same as any one of embodiments 1 to 5. Furthermore, the wire guide assembly 5 is composed of bearings, wire guide rings, pressure plates and other parts. The components are mechanically assembled and fastened with screws to allow the moored cable 4 to pass through smoothly. Moreover, there is a certain force between the moored cable 4 and the winding drum 7, so that the cable is arranged more neatly when winding and will not be messy or tangled.

[0055] Example 7:

[0056] The main structure of this embodiment is the same as any one of embodiments 1 to 6. Furthermore, the DC power supply is a battery pack or a power conversion device connected to 220V AC mains power.

[0057] Example 8:

[0058] The main structure of this embodiment is the same as any one of embodiments 1 to 7. Furthermore, the booster plate 10 can convert low-voltage DC power into 300-420V high-voltage DC power, which has advantages such as speed, lightweight, high reliability, portability, high power density, surge resistance, and fast start-up.

[0059] The boost board 10 rectifies and isolates the power supply, modulates it at high frequency, boosts the voltage through a high-frequency transformer, converts it to high voltage, and then rectifies and filters it again. It uses high-voltage, low-internal-resistance MOSFETs and diodes made of special materials, and the circuit uses multiple parallel designs to improve conversion efficiency.

[0060] Example 9:

[0061] The main structure of this embodiment is the same as any one of embodiments 1 to 8. Furthermore, the cable take-up mechanism 1 is connected to the ground power converter 2 by screws.

[0062] Example 10:

[0063] The main structure of this embodiment is the same as any one of embodiments 1 to 9. Furthermore, this device adopts manual winding, eliminating the automatic winding control and execution part, which greatly reduces the weight of the winding device. The overall size is only 275×170×230 (mm), which can be carried on the back and does not have high requirements for the site.

[0064] Example 11:

[0065] The main structure of this embodiment is the same as any one of embodiments 1 to 10. Furthermore, a manually tethered multi-rotor UAV reel-up device is mainly used to provide power to tether the UAV for extended periods of flight to perform corresponding tasks. The system consists of two main parts: a reel-up mechanism 1 and a ground power converter 2, which are fastened together with screws.

[0066] The cable take-up mechanism includes an optoelectronic slip ring 3, a cable tethering device 4, a cable guide assembly 5, a cable guide screw 6, a winding drum 7, a synchronous transmission mechanism 8, and an optical transceiver 9. The ground power converter includes a boost board 10, a filter board 11, a fan 12, and a ground power chamber 13, etc.

[0067] The photoelectric slip ring 3 transmits optical and electrical signals between relatively rotating components.

[0068] Tether cable 4 provides photoelectric information transmission and power supply for the drone during flight.

[0069] Optical transceiver 9 is used for the conversion and transmission of optical and electrical signals between the UAV and the portable control terminal.

[0070] The boost board 10 converts low-voltage DC power into 300-420V high-voltage DC power, and has advantages such as speed, lightweight, high reliability, portability, high power density, surge resistance, and fast start-up.

[0071] The ground power converter 2 is a ground power supply specifically designed for harsh environments such as field operations for individual soldiers. The DC power input enters the boost board 10 through the filter board 11. The boost board 10 rectifies and isolates the power, modulates it at high frequency, and boosts it through a high-frequency transformer. After being converted to high voltage, it is rectified and filtered again. It uses high-voltage, low-internal-resistance MOSFETs and diodes made of special materials. The internal circuit uses multiple parallel designs to improve conversion efficiency.

[0072] Example 12:

[0073] The main structure of this embodiment is the same as any one of embodiments 1 to 11. Furthermore, the tethered drone achieves "unlimited endurance" through the drone reel-in device, meeting the requirements of long-endurance missions.

[0074] The drone reel-up device rectifies and isolates the low-voltage battery power to boost it to 380V DC, then powers the drone equipment. An onboard power converter then reduces the high-voltage DC power to the low-voltage DC power required by the flight system, thus enabling the tethered drone to hover for extended periods.

[0075] The wire at the telescopic end of the tethered cable 4 is connected to the input end of the airborne power converter, and the optical fiber is connected to the airborne optical transceiver.

Claims

1. A manually tethered multi-rotor drone reel-up device, characterized in that: Includes a take-up mechanism (1) and a ground power converter (2) connected to the take-up mechanism (1); The take-up mechanism (1) includes a bracket (14), a rotating shaft (15), a winding drum (7), a tethering cable (4), a photoelectric slip ring (3), a wire guide assembly (5), a wire guide screw (6), a synchronous transmission mechanism (8), and a handle (16). The bracket (14) and the ground power converter (2) together form a receiving cavity; The rotating shaft (15) is located in the accommodating cavity and both ends are fixed to the bracket (14); a winding drum (7) is installed in the middle of the shaft body of the rotating shaft (15), and a tethering cable (4) is wound on the winding drum (7); a photoelectric slip ring (3) is installed at each end of the rotating shaft (15), and the stator and rotor of the photoelectric slip ring (3) are respectively connected to the ground power converter (2) and the fixed end of the tethering cable (4); The synchronous transmission mechanism (8) includes a driving wheel, a driven wheel, and a belt connecting the driving wheel and the driven wheel on the same side; the driving wheel and the driven wheel are respectively fixed on the lead screw (6) and the shaft (15); both ends of the lead screw (6) are fixed on the bracket (14), and a handle (16) is also connected to one end of the driving wheel. The cable guide screw (6) is slidably mounted with a cable guide assembly (5); the telescopic end of the tether cable (4) passes through the cable guide assembly (5) and connects to the UAV; The ground power converter (2) includes an optical transceiver (9), a boost board (10), a filter board (11), a fan (12), a ground power cavity (13), and a portable control terminal; The input electrical port and output optical port of the optical transceiver (9) are respectively connected to the stator of the portable control terminal and the photoelectric slip ring (3); A DC power supply is placed inside the ground power supply cavity (13); The input and output ends of the filter board (11) are connected to the DC power supply and the input end of the boost board (10), respectively; the output end of the boost board (10) is connected to the power input interface of the stator of the photoelectric slip ring (3).

2. The manually tethered multi-rotor UAV line reel-up device according to claim 1, characterized in that: The rotating shaft (15) is a hollow tubular structure with open ends, and is fixed to the bracket (14) by bearings.

3. The manually tethered multi-rotor UAV line reel-up device according to claim 1, characterized in that: The cable threaded rod (6) has a threaded middle section and round rods at both ends, and is fixed to the bracket (14) by bearings.

4. The manually tethered multi-rotor UAV cable reel-up device according to claim 1, characterized in that: The lead screw (6) is arranged parallel to the rotating shaft (15).

5. A manually tethered multi-rotor UAV line reel-up device according to claim 1, characterized in that: The tethered cable (4) includes a pair of power supply lines and two optical fibers.

6. A manually tethered multi-rotor UAV line reel-up device according to claim 1, characterized in that: The DC power source is a battery pack or a power conversion device connected to 220V AC mains power.

7. A manually tethered multi-rotor UAV line reel-up device according to claim 1, characterized in that: The booster plate (10) can provide 300-420V DC power.

8. A manually tethered multi-rotor UAV line reel-up device according to claim 1, characterized in that: The take-up mechanism (1) is connected to the ground power converter (2) by screws.

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