Unmanned aerial vehicle knocking device

Abstract

An unmanned aerial vehicle knocking device comprises a mounting frame, a driving device, a pair of swing rods and a rack. The top of the mounting frame is connected with an unmanned aerial vehicle. The driving device is arranged in the unmanned aerial vehicle or on the top face, and a movable rod of the driving device perpendicularly faces the lower portion of the unmanned aerial vehicle. Fixing shafts are arranged at the upper ends of the swing rods, the upper ends of the swing rods are rotationally arranged on the mounting frame, and gear rings are coaxially arranged outside the fixing shafts; the opposite sides of the two gear rings rotate upwards in one direction relative to the fixed shaft around respective axes; and a gap is formed between the two gear rings. The rack is arranged between the two gear rings in a penetrating mode, the upper end of the rack is a flat plate, the lower end of the rack is a rack part, the top of the flat plate part is connected with the lower end of a movable rod of the driving device, insections are arranged on the two sides of the rack part and matched with the gear rings on the two sides respectively, and the thickness of the flat plate part is smaller than or equal to the distance between the tooth bottoms of the insections on the two sides of the rack part. According to the scheme, the balance of the unmanned aerial vehicle can be effectively kept during icebreaking, and a better icebreaking effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of unmanned aerial vehicle application, and in particular relates to a knocking device for an unmanned aerial vehicle. Background Art

[0002] In winter, with the drop in temperature and the influence of rain and snow, a thick layer of ice adheres to the surface of high-voltage cables in many cold regions. With the vigorous development of drone technology, the technology of using drones to de-ice high-voltage cables has emerged. Its main principle is to suspend a large mass rod under the drone, usually an iron rod. Then use the drone to impact the high-voltage cable with the rod, and use the impact force generated when the rod touches the high-voltage cable to break the ice attached to the high-voltage cable. However, this method is likely to cause a large shake to the drone when the rod impacts the cable, which can easily cause the drone to lose balance, and has high requirements on the operator's skills and the performance of the drone. Utility Model Content

[0003] In order to solve the deficiencies of the prior art, the utility model provides a drone striking device, which can effectively maintain the balance of the drone when breaking ice, reduce the difficulty of operating the drone, and has a better ice-breaking effect.

[0004] In order to achieve the purpose of this utility model, the following scheme is proposed:

[0005] A drone striking device comprises a mounting frame, a driving device, a pair of swing arms and a rack.

[0006] The top of the mount is used to attach the drone.

[0007] The driving device is arranged inside or on the top surface of the UAV, and the movable rod of the driving device is vertically directed toward the bottom of the UAV.

[0008] A fixed shaft is provided at the upper end of the swing rod, and the upper end of the swing rod is rotatably mounted on the mounting frame. The rotation axes of the swing rods are coaxial with the corresponding fixed shafts, and the fixed shafts of the two swing rods are parallel to each other. The outsides of the fixed shafts are coaxially provided with gear rings; the opposite sides of the two gear rings rotate unidirectionally upward around their respective axes relative to the fixed shaft; there is a gap between the two gear rings.

[0009] The rack is inserted between the two gear rings, the upper end of the rack is a flat plate and the lower end is a rack, the top of the flat plate is connected to the lower end of the movable rod of the driving device, both sides of the rack have tooth patterns, which match the gear rings on both sides respectively, and the thickness of the flat plate is less than or equal to the distance between the tooth bottoms of the tooth patterns on both sides of the rack.

[0010] The beneficial effects of the utility model are as follows: the striking force of the present scheme will be greater, and the striking can be performed from two opposite sides of the ice layer at the same time, making it easier to break the ice layer; on the other hand, because two rocker arms are used to strike from both sides simultaneously, the reaction forces of the cables borne by the two rocker arms tend to be balanced, thereby reducing the shaking of the drone, making it easier for the drone to maintain balance, and reducing the difficulty of operation and the requirements for drone performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present invention.

[0012] Figure 1 Shown is a schematic diagram of the overall structure of the present application.

[0013] Figure 2 The schematic diagram of the structure of the present application is shown when the swing rod is opened.

[0014] Figure 3 A cross-sectional view of the present application is shown when the rocker arm is opened.

[0015] Figure 4 A cross-sectional view of the present application is shown when the rocker arm is closed.

[0016] Figure 5 Shows Figure 4 A partial enlarged view of point A in the middle.

[0017] Markings in the figure: mounting frame -1, support ear -11, driving device -2, rocker arm -3, fixed shaft -31, ratchet pawl -32, counterweight block -33, ring gear -4, rack -5, flat plate part -51, rack part -52. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings, but the embodiments described in the utility model are only part of the embodiments of the utility model, rather than all the embodiments.

[0019] like Figures 1 to 4 As shown, a drone striking device includes: a mounting frame 1, a driving device 2, a pair of rocker arms 3 and a rack 5.

[0020] The top of the mounting frame 1 is used to connect the drone. Specifically, the mounting frame 1 can be installed on the bottom of the drone through a pair of ears 11 arranged on the top by screws.

[0021] The driving device 2 is arranged inside or on the top surface of the UAV, and the movable rod of the driving device 2 is vertically oriented toward the bottom of the UAV. The driving device 2 is a linear motor or a telescopic cylinder.

[0022] A fixed shaft 31 is provided at the upper end of the swing rod 3, and the upper end of the swing rod 3 is rotatably arranged on the mounting frame 1. The rotation axis of the swing rod 3 is coaxial with the corresponding fixed shaft 31, and the fixed shafts 31 of the two swing rods 3 are parallel to each other. The outside of the fixed shaft 31 is coaxially provided with a gear ring 4; the opposite sides of the two gear rings 4 rotate upward in one direction relative to the fixed shaft 31 around their respective axes. The common structure for achieving unidirectional rotation is a ratchet mechanism, or a mechanism with a similar structure. The specific working state is as follows: when the opposite sides of the two gear rings 4 rotate upward, the gear ring 4 rotates relative to the fixed shaft 31. At this time, the swing rod 3 will remain stationary and cannot rotate with the gear ring 4; when the opposite sides of the two gear rings 4 rotate downward, the gear ring 4 will drive the corresponding fixed shaft 31 to rotate, so that the two swing rods 3 are synchronously opened to both sides; there is a gap between the two gear rings 4.

[0023] The rack 5 is inserted between the two gear rings 4. The upper end of the rack 5 is a flat plate portion 51 and the lower end is a rack portion 52. The top of the flat plate portion 51 is connected to the lower end of the movable rod of the driving device 2. Both sides of the rack portion 52 have tooth patterns, which match the gear rings 4 on both sides respectively. The thickness of the flat plate portion 51 is less than or equal to the distance between the tooth bottoms of the tooth patterns on both sides of the rack portion 52, so that the flat plate portion 51 can smoothly pass through the two gear rings 4.

[0024] When the UAV is in flight or in a non-icebreaking state, the rack portion 52 is located above or below the two gear rings 4, that is, the rack portion 52 and the gear rings 4 are not in a meshing state, and the two rocker arms 3 will automatically droop under the action of gravity and present a state of closing toward the middle to reduce the wind resistance of the UAV during flight.

[0025] When the UAV flies to the predetermined position, the rack 5 can be driven to move by the driving device 2, so that the two rocker arms 3 are opened. There are two processes for the rack 5 to drive the rocker arms 3 to open; the first is that the rack portion 52 is located below the two gear rings 4 in the early stage. At this time, the rack portion 52 needs to be moved to the top of the gear ring 4 first. In the process of moving the rack 5 upward, because the gear ring 4 can rotate unidirectionally around the fixed axis 31, and the direction of unidirectional rotation corresponds to the opposite side of the two gear rings 4 facing upward, that is, the side of the gear ring 4 meshing with the rack portion 52 is upward. Therefore, in the process of moving the rack 5 upward, even if the rack portion 52 is meshed with the gear ring 4, it can only drive the gear ring 4 to rotate around the axis relative to the fixed axis 31, and cannot drive the rocker arm. 3 swings toward the middle, so as to prevent the rack 5 from being unable to move upward smoothly when the lower ends of the swing rod 3 abut against each other; when the rack portion 52 moves to the top of the gear ring 4, the rack 5 can be moved downward. During the downward movement of the rack 5, the rack portion 52 will mesh with the gear rings 4 on both sides. Since the gear ring 4 can only rotate in one direction around the fixed shaft 31, during the descent of the rack 5, the gear ring 4 will not be able to rotate relative to the fixed shaft 31. The gear ring 4 will drive the swing rod 3 to swing to both sides through the fixed shaft 31, so that the two swing rods 3 are in an open state; another is that the rack portion 52 is already above the gear ring 4 in the early stage, and in this state, directly moving the rack 5 downward can drive the two swing rods 3 to open outward;

[0026] When striking, the two opened pendulum rods 3 are transferred to the two sides of the cable to be struck by the drone, and then the rack 5 is continued to be moved downward to make the two pendulum rods 3 continue to open to increase the impact force when swinging downward. After the rack portion 52 is separated from the gear rings 4 on both sides, the flat plate portion 51 will move between the two gear rings 4, and there is no contact connection structure between the flat plate portion 51 and the gear rings 4. Since the gear rings 4 lose the limitation of the rack portion 52, the two pendulum rods 3 will swing downward rapidly under the action of gravity and close to the middle, thereby striking both sides of the cable at the same time. Compared with the single rod striking method, the striking force of this scheme will be greater, and it can strike from the opposite sides of the ice layer at the same time, which is easier to break the ice layer. On the other hand, because the two pendulum rods 3 are used to strike from both sides simultaneously, the reaction force of the cable borne by the two pendulum rods 3 also tends to be balanced, thereby reducing the shaking of the drone, making it easier for the drone to maintain balance, reducing the difficulty of operation and the requirements for drone performance.

[0027] Preferably, Figure 5 As shown, a ratchet structure is provided in the middle of the inner ring width direction of the gear ring 4, and both sides of the inner ring width direction of the gear ring 4 are used to connect to the fixed shaft 31. A pawl 32 is provided on the outer wall of the fixed shaft 31, and the direction of one end of the pawl 32 that cooperates with the ratchet is consistent with the direction of rotation of the gear ring 4 relative to the fixed shaft 31.

[0028] Preferably, a counterweight block 33 is provided at the lower end of the swing rod 3 to increase the impact force of the swing rod 3 .

[0029] Further preferably, Figures 1 to 4 As shown, the counterweight block 33 is detachably arranged on the opposite side of the two rocking rods 3 to facilitate replacement and prevent the rocking rods 3 from being damaged during the striking process.

[0030] Preferably, Figure 1 , Figure 2 As shown, the cross section of the mounting frame 1 is a U-shaped structure, and the gear ring 4 is arranged inside the U-shaped structure to protect the gear ring 4.

[0031] The above is only a preferred embodiment of the utility model, and does not mean that it is the only one or limit the utility model. Those skilled in the art should understand that various changes or equivalent replacements made to the utility model without departing from the scope of the utility model are within the scope of protection of the utility model.

Claims

1. A drone striking device, characterized in that: include: A mounting frame (1), the top of which is used to connect the drone; The driving device (2) is arranged inside or on the top surface of the drone, and the movable rod of the driving device (2) is vertically directed toward the bottom of the drone; A pair of swing rods (3), each having a fixed shaft (31) at its upper end, the upper ends of the swing rods (3) being rotatably mounted on a mounting frame (1), the rotation axes of the swing rods (3) being coaxial with the corresponding fixed shafts (31), the fixed shafts (31) of the two swing rods (3) being parallel to each other, and the exteriors of the fixed shafts (31) being coaxially provided with gear rings (4); opposite sides of the two gear rings (4) being unidirectionally upwardly rotated about their respective axes relative to the fixed shaft (31); and a gap being provided between the two gear rings (4); The rack (5) is inserted between the two gear rings (4). The upper end of the rack (5) is a flat plate portion (51) and the lower end is a rack portion (52). The top of the flat plate portion (51) is connected to the lower end of the movable rod of the driving device (2). Both sides of the rack portion (52) have tooth patterns, which are matched with the gear rings (4) on both sides. The thickness of the flat plate portion (51) is less than or equal to the distance between the tooth bottoms of the tooth patterns on both sides of the rack portion (52).

2. A drone striking device according to claim 1, characterized in that: A ratchet structure is provided in the middle of the inner ring width direction of the gear ring (4); both sides of the inner ring width direction of the gear ring (4) are used to connect to the fixed shaft (31); a pawl (32) is provided on the outer wall of the fixed shaft (31); the direction of one end of the pawl (32) that cooperates with the ratchet is consistent with the direction of rotation of the gear ring (4) relative to the fixed shaft (31).

3. The drone striking device according to claim 1, characterized in that: A counterweight (33) is provided at the lower end of the swing rod (3).

4. The drone striking device according to claim 3, characterized in that: The counterweight block (33) is detachably arranged on one side opposite to the two swing rods (3).

5. The drone striking device according to claim 1, characterized in that: The cross section of the mounting frame (1) is a U-shaped structure, and the gear rings (4) are all arranged inside the U-shaped structure.

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