Protection device for testing unmanned aerial vehicle

Abstract

The utility model provides a protection device for testing an unmanned aerial vehicle. The protection device comprises a supporting frame, a connecting piece and a hoisting mechanism. The support frame is fixedly mounted on a test site; the connecting piece is used for being connected with the unmanned aerial vehicle and connected with the upper end of the supporting frame through a cable. The hoisting mechanism is connected with the cable and used for pulling or loosening the cable, so that the connecting piece ascends or descends, and then the vertical position of the unmanned aerial vehicle is adjusted. According to the protection device for testing the unmanned aerial vehicle, the unmanned aerial vehicle can be effectively protected when an accident occurs, and the unmanned aerial vehicle is controlled within a safe range, so that the conditions of collision damage or out-of-control air crash and the like are avoided.

Description

Technical Field

[0001] The present application belongs to the technical field of drone testing equipment, and more specifically, to a protective device for drone testing. Background Art

[0002] During the research and development process, drones need to be tested repeatedly in the air for a long time to verify their functionality, reliability and other indicators.

[0003] At present, during the drone testing process, testers are required to operate the drone to complete a variety of large-scale actions to verify the drone's various indicators, and they need to dynamically adjust the various parameters of the multi-rotor drone flight control unit to make the drone reach the optimal state.

[0004] The inventors found that during the entire process of drone testing, unexpected situations may occur, such as excessive adjustment of flight control parameters or operational errors by testers, which may cause the drone to be easily damaged or crash, resulting in huge losses. Utility Model Content

[0005] The purpose of this application is to provide a protective device for drone testing, aiming to solve the technical problem in the prior art that drones are prone to collision damage or crashes during testing.

[0006] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide a protection device for UAV testing, including: a support frame for fixed installation in a test site;

[0007] A connector, used to connect to the drone, and connected to the upper end of the support frame via a cable; and

[0008] A hoisting mechanism is connected to the cable and is used for pulling or loosening the cable to make the connecting member rise or fall.

[0009] Preferably, the connecting member comprises:

[0010] a connecting plate having a lifting eye on its upper side suitable for connecting to the cable; and

[0011] A plurality of fixed legs are arranged around the connecting plate; the upper end of each of the fixed legs is connected to the connecting plate, and the lower end of each of the fixed legs is connected to the drone via a fixing clip.

[0012] Preferably, the fixed leg is composed of two connecting rods hinged to each other.

[0013] Preferably, the fixing clip comprises:

[0014] Two clips hinged to each other, one of which is connected to the lower end of the fixed leg; when the swing ends of the two clips are connected, the two clips form an annular structure arranged around the connection part of the drone; and

[0015] A plurality of fasteners are arranged between the two clips, and each of the fasteners is suitable for connecting the swing ends of the two clips.

[0016] Preferably, a buffer is further provided inside the fixing clamp;

[0017] When the fixing clip is connected to the drone, the buffer is suitable for abutting against the drone.

[0018] Preferably, the hoisting mechanism comprises:

[0019] A base for fixed installation at the test site; and

[0020] A winch, rotatably disposed on the upper side of the base and fixedly connected to one end of the cable;

[0021] Wherein, the winch is connected to a driving member in a transmission manner; when the driving member drives the winch to rotate, the cable is suitable for winding around the winch or detaching from the winch.

[0022] Preferably, the support frame comprises:

[0023] Two pulley blocks, both located above the hoisting mechanism, for allowing the cable to pass through;

[0024] Wherein, when the cable passes through the two pulley blocks in sequence, the two pulley blocks are respectively suitable for converting the part of the cable that is vertically arranged with the drone into a part that is horizontally arranged with the drone, and then into a part that is vertically arranged with the drone.

[0025] Preferably, the support frame comprises:

[0026] Two vertical poles are arranged side by side in a horizontal direction and are used for fixed installation at the test site; and

[0027] The two ends of the connecting cable are respectively connected to the two vertical poles.

[0028] A tensioner is provided between the connecting cable and the two vertical poles;

[0029] Wherein, when the connecting cable is connected to the two upright poles respectively through the two tensioners, the length direction of the connecting cable is parallel to the horizontal direction.

[0030] Preferably, the cable and the connecting member are connected via an elastic member.

[0031] In an embodiment of the present application, a support frame is used for fixed installation in a test site. The tester connects the connecting piece to the drone, and then connects the connecting piece to the upper end of the support frame with a cable. During the test, first, the tester places the drone at the test site and takes off. During take-off, the winch mechanism simultaneously performs the operation of pulling the cable. After the drone reaches the specified height, the winch mechanism stops pulling, and then the drone test project is started. After the test is completed, the drone lands, and the winch mechanism simultaneously performs the line-release operation. After the drone lands, the winch mechanism stops releasing the line.

[0032] During the test, the length of the cable is controlled by the winch mechanism to limit the range of movement of the UAV, making the flight range of the UAV controllable. This can ensure that the cable is always in a tightened state during the test and will not interfere with the normal flight of the UAV. It also acts as a buffer when the propellers of the UAV are shut down in the air.

[0033] Compared with the prior art, the protection device for drone testing provided in the embodiment of the present application can effectively protect the drone when an accident occurs, and control it within a safe range to avoid collision damage or loss of control and crash. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0035] Figure 1 A schematic diagram of the three-dimensional structure of a protective device for drone testing provided in an embodiment of the present application;

[0036] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of the A area in the middle;

[0037] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of the middle B area;

[0038] Figure 4 for Figure 1 Schematic diagram of the enlarged structure of the middle C region;

[0039] Figure 5 A schematic diagram of the three-dimensional structure of a connector used in an embodiment of the present application;

[0040] Figure 6 for Figure 5 Schematic diagram of the enlarged structure of the D region in the middle;

[0041] Figure 7 A schematic diagram of the three-dimensional structure of the first pulley group or the second pulley group used in the embodiment of the present application;

[0042] Among them, the reference numerals in the figure are:

[0043] 1. Support frame; 11. Vertical pole; 12. Connecting cable; 13. Tensioner; 2. Connecting piece; 21. Connecting plate; 22. Lifting ring; 23. Fixed leg; 231. Connecting rod; 24. Fixed clamp; 241. Clip; 242. Fastener; 243. Buffer; 3. Hoisting mechanism; 31. Base; 32. Winch; 33. Driving piece; 4. Pulley block; 5. Cable; 51. Elastic piece; 6. UAV. DETAILED DESCRIPTION

[0044] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0045] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0046] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0048] See also Figure 1 The drone testing protection device provided in the present application is now described. The drone testing protection device comprises a support frame 1, a connecting member 2 and a hoisting mechanism 3.

[0049] The support frame 1 is used for fixed installation in the test site. The support frame 1 adopts a door-shaped structure and is made of metal material to ensure that the support frame 1 can maintain good supporting performance in various outdoor environments; the surface of the support frame 1 can be coated with anti-rust paint to prevent the support frame 1 from rusting due to rain and snow.

[0050] The connector 2 can be adapted according to the specific model of the drone 6; the connector 2 is used to connect to the drone 6, and it is connected to the upper end of the support frame 1 through a cable 5; the connector 2 is made of FRP material, FRP is fiber reinforced plastics (Fiber Reinforced Plastics), also known as glass reinforced plastics (Glass Reinforced Plastics), which is a fiber-reinforced resin-based material; it consists of two parts: fiber and resin, the fiber is generally glass fiber carbon fiber, or other high-performance fiber, and the resin is usually polyester resin, epoxy resin or phenolic resin, etc.; FRP material has the characteristics of high strength, corrosion resistance and insulation.

[0051] The connector 2 is separated from the top antenna of the drone 6 by a certain distance to ensure that the connector 2 will not affect the reception of the navigation signal of the drone 6; the fixing point of the connector 2 is located at the root of each arm of the drone 6 close to the body, and the force point is more reasonable, which can effectively disperse the impact force when the drone 6 crashes and minimize the loss.

[0052] The hoisting mechanism 3 is connected to the cable 5 and is used for pulling or releasing the cable 5 to make the connecting member 2 rise or fall.

[0053] In an embodiment of the present application, the support frame 1 is used to be fixedly installed in a test site. The tester connects the connecting piece 2 to the drone 6, and then connects the connecting piece 2 to the upper end of the support frame 1 with a cable 5; during the test, first, the tester places the drone 6 at the test site and takes off. During take-off, the winch mechanism 3 simultaneously performs the operation of pulling the cable 5. After the drone 6 reaches the specified height, the winch mechanism 3 stops pulling, and then the drone 6 test project is started; after the test is completed, the drone 6 lands, and the winch mechanism 3 simultaneously performs the line-release operation. After the drone 6 lands, the winch mechanism 3 stops releasing the line.

[0054] During the test, the length of the cable 5 is controlled by the winch mechanism 3 to limit the range of movement of the drone 6, so that the flight range of the drone 6 is controllable. This can ensure that the cable 5 is always in a tightened state during the test and will not interfere with the normal flight of the drone 6. It also plays a buffering role when the propellers of the drone 6 are turned off in the air.

[0055] Compared with the prior art, the protection device for drone testing provided in the embodiment of the present application can effectively protect the drone 6 when an accident occurs, and control it within a safe range to avoid collision damage or loss of control and crash.

[0056] In some embodiments, see Figure 5 As a specific implementation of the protective device for drone testing provided in the present application, the connecting member 2 includes a connecting plate 21 and a plurality of fixed legs 23 .

[0057] The upper side of the connecting plate 21 has a lifting ring 22 suitable for connecting to the cable 5, and the lifting ring 22 is detachably connected to the connecting plate 21 by threads; the connecting plate 21 is composed of two layers of circular plates arranged in parallel, and the circular plates have a plurality of reserved holes distributed along the circumference of the center, and the two layers of circular plates are fixed by a plurality of bolts.

[0058] A plurality of fixed legs 23 are arranged around the connecting plate 21 , each fixed leg 23 is respectively inserted into a reserved hole and connected to the connecting plate 21 , and the lower end of each fixed leg 23 is connected to the drone 6 via a fixing clip 24 .

[0059] It should be noted that the number of fixed legs 23 can be adapted according to the number of arms of various types of drones 6 .

[0060] By adopting the above technical solution, the connecting member 2 can be connected to the arms on the drone 6 through multiple fixing clips 24, and the fixing points of the fixing clips 24 are located at the roots of each arm of the drone 6 close to the body. The force points are more reasonable, which can effectively disperse the impact force when the drone 6 crashes and minimize the loss.

[0061] In some embodiments, please refer to Figure 1 and Figure 5 As a specific implementation of the protection device for drone testing provided in the present application, the fixed leg 23 is composed of two connecting rods 231 hinged to each other.

[0062] By adopting the above technical solution, when the UAV 6 performs a flight test, the two mutually hinged connecting rods 231 can rotate around their hinge positions in a timely manner, thereby avoiding the fixed legs 23 from interfering with the flight test of the UAV 6; in addition, when the UAV 6 unexpectedly rises or falls rapidly, the two connecting rods 231 can effectively buffer the impact force generated by the rapid displacement of the UAV 6.

[0063] In some embodiments, please refer to Figure 5 and Figure 6 As a specific implementation of the protective device for drone testing provided in the present application, the fixing clamp 24 includes two clips 241 and a plurality of fasteners 242 .

[0064] The two clips 241 are hinged to each other, and one of the clips 241 is connected to the lower end of the fixed leg 23 in a hinged form; when the swing ends of the two clips 241 are connected, the two clips 241 form an annular structure arranged around the connection part of the drone 6, and the annular structure adopts a structure adapted to the shape of the arm of the drone 6.

[0065] A plurality of fasteners 242 are disposed between the two clips 241 , and each fastener 242 is suitable for connecting the swing ends of the two clips 241 ; a thread groove is provided on the fastener 242 , and the fastener 242 and the two clips 241 are connected by threads.

[0066] By adopting the above technical solution, the tester can fix the two clips 241 on the arm of the drone 6 by tightening the fasteners 242 , or detach the drone 6 from the connecting member 2 by removing the fasteners 242 .

[0067] In some embodiments, see Figure 6 As a specific implementation of the protective device for drone testing provided in the present application, a buffer member 243 is also provided inside the fixing clamp 24 .

[0068] When the fixing clamp 24 is connected to the drone 6 , the buffer 243 is suitable for contacting the drone 6 ; the buffer 243 is made of soft rubber or silicone material, and the buffer 243 can prevent the fixing clamp 24 from wearing out the arms of the drone 6 .

[0069] In some embodiments, see Figure 1 As a specific implementation of the protection device for drone testing provided in the present application, the hoisting mechanism 3 includes a base 31 and a winch 32 .

[0070] The base 31 is used for fixed installation in the test site. The base 31 is made of metal material to ensure that the base 31 can maintain good supporting performance in various outdoor environments.

[0071] The winch 32 has baffles on both sides to prevent the cable 5 from escaping. The winch 32 is rotatably arranged on the upper side of the base 31 and is fixedly connected to one end of the cable 5 .

[0072] The winch 32 is connected to a driving member 33 , which can be manually driven by a manual crank or electrically driven by a motor. The winch 32 has a self-locking function to prevent the winch 32 from loosening.

[0073] When the driving member 33 drives the winch 32 to rotate, the cable 5 is adapted to be wound around the winch 32 or detached from the winch 32 .

[0074] In some embodiments, see Figure 1 , Figure 3 and Figure 7 As a specific implementation of the protection device for drone testing provided in the present application, the support frame 1 includes two pulley sets 4.

[0075] The two pulley blocks 4 are both located above the winch mechanism 3 for the cable 5 to pass through; the pulley block 4 is composed of a pulley side plate, a pulley bottom plate, a pulley core shaft, a shaft sleeve, and a pulley block 4. The pulley side plate and the pulley bottom plate are screwed together to form a frame, and the pulley is fixed in the frame by the pulley core shaft and can rotate freely.

[0076] When the cable 5 passes through the two pulley blocks 4 in sequence, the two pulley blocks 4 are respectively adapted to convert the portion of the cable 5 that is vertically arranged with the drone 6 into a portion that is horizontally arranged with the drone 6 and then into a portion that is vertically arranged with the drone 6 .

[0077] By adopting the above solution, the tester can control the retraction and extension of the cable 5 by operating the hoisting mechanism 3 on the ground, which provides convenience for the tester.

[0078] In some embodiments, see Figure 1 As a specific implementation of the protection device for drone testing provided in the present application, the support frame 1 also includes two vertical poles 11 and a connecting cable 12.

[0079] The two vertical poles 11 are arranged in parallel in the horizontal direction, and the two vertical poles 11 are used to be fixedly installed in the test site. The bottoms of the two vertical poles 11 are inserted into a deeper position of the ground, which provides good stability for the support frame 1.

[0080] Both ends of the connecting cable 12 are connected to the tops of the two vertical poles 11 respectively, and the connecting cable 12 and the vertical poles 11 can be connected in the form of a clamp.

[0081] By adopting the above technical solution, the two upright poles 11 and the connecting cable 12 together form a door-shaped structure. Since the test site of the drone 6 is large and the distance between the two upright poles is large, the connecting cable 12 can reduce the construction cost of the support frame 1.

[0082] In some embodiments, please refer to Figure 1 and Figure 2 As a specific implementation of the protection device for drone testing provided in the present application, a tensioner is provided between the connecting cable 12 and the two upright poles 11.

[0083] When the connecting cable 12 is connected to the vertical pole 11, the tensioner is suitable for tightening the connecting cable 12, and at this time, the length direction of the connecting cable 12 is parallel to the horizontal direction.

[0084] The tensioner may be a turnbuckle bolt, which is also known as an open-body turnbuckle wire rope tensioner 13 . The tester may increase the tension of the connecting cable 12 by adjusting the tensioner, thereby increasing the stability of the support frame 1 .

[0085] In some embodiments, please refer to Figure 1 and Figure 4 As a specific implementation of the protection device for drone testing provided in the present application, the cable 5 is connected to the connecting member 2 via an elastic member 51 .

[0086] The elastic member 51 can be an elastic rope with a spiral structure. Since the spiral structure has a certain elasticity and a large expansion ratio, it can ensure that the cable 5 is always in a tightened state during the test of the drone 6 and will not interfere with the normal flight of the drone 6. It also plays a buffering role when the drone 6 crashes.

[0087] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A protective device for drone testing, characterized in that: include: Support frame, used for fixed installation at the test site; A connecting piece, used to connect with the drone, and connected to the upper end of the supporting frame through a cable; as well as A hoisting mechanism is connected to the cable and is used for pulling or loosening the cable to make the connecting member rise or fall.

2. The protection device for testing an unmanned aerial vehicle according to claim 1, characterized in that: The connecting piece comprises: a connecting plate having a lifting eye on its upper side suitable for connecting to the cable; and A plurality of fixed legs are arranged around the connecting plate; the upper end of each of the fixed legs is connected to the connecting plate, and the lower end of each of the fixed legs is connected to the drone via a fixing clip.

3. The protection device for testing an unmanned aerial vehicle according to claim 2, characterized in that: The fixed supporting leg is composed of two connecting rods hinged to each other.

4. The protection device for testing an unmanned aerial vehicle according to claim 2, characterized in that: The fixing clip comprises: Two clips hinged to each other, one of which is connected to the lower end of the fixed leg; when the swing ends of the two clips are connected, the two clips form an annular structure arranged around the connection part of the drone; and A plurality of fasteners are arranged between the two clips, and each of the fasteners is suitable for connecting the swing ends of the two clips.

5. The protection device for testing an unmanned aerial vehicle according to claim 2, characterized in that: A buffer is also provided inside the fixing clamp; When the fixing clip is connected to the drone, the buffer is suitable for abutting against the drone.

6. The protection device for testing an unmanned aerial vehicle according to claim 1, characterized in that: The hoisting mechanism comprises: A base for fixed installation at the test site; and A winch, rotatably disposed on the upper side of the base and fixedly connected to one end of the cable; Wherein, the winch is connected to a driving member in a transmission manner; when the driving member drives the winch to rotate, the cable is suitable for winding around the winch or detaching from the winch.

7. The protection device for testing an unmanned aerial vehicle according to claim 1, characterized in that: The support frame comprises: Two pulley blocks, both located above the hoisting mechanism, for allowing the cable to pass through; Wherein, when the cable passes through the two pulley blocks in sequence, the two pulley blocks are respectively suitable for converting the part of the cable that is vertically arranged with the drone into a part that is horizontally arranged with the drone, and then into a part that is vertically arranged with the drone.

8. The protection device for testing an unmanned aerial vehicle according to claim 1, characterized in that: The support frame comprises: Two vertical poles are arranged side by side in a horizontal direction and are used for fixed installation at the test site; and The two ends of the connecting cable are respectively connected to the two vertical poles.

9. The protection device for testing a drone as claimed in claim 8, characterized in that: A tensioner is provided between the connecting cable and the two vertical poles; Wherein, when the connecting cable is connected to the two upright poles respectively through the two tensioners, the length direction of the connecting cable is parallel to the horizontal direction.

10. The protection device for testing a drone as claimed in claim 1, characterized in that: The cable and the connecting member are connected via an elastic member.

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