Magnetic type mechanical arm suspension operation device based on unmanned aerial vehicle platform

By introducing an extension mechanism and an electromagnet into the drone suspension device, effective protection of objects is achieved, improving the reliability of suspension operations and the multi-task adaptability of drones.

CN224546305UActive Publication Date: 2026-07-24MINJIANG UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MINJIANG UNIVERSITY
Filing Date
2025-06-17
Publication Date
2026-07-24

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Abstract

The utility model discloses a kind of magnetic type mechanical arm suspension operation devices based on unmanned aerial vehicle platform, expansion mechanism still includes first connecting rod, four are set in first connecting rod, and the inner wall middle part of each first connecting rod is all provided with receiving groove, receiving groove is consistent with first connecting rod in length direction, first connecting rod bottom surface and close receiving groove end still fixedly connected with extension plate, extension plate is fixedly connected with electromagnet in one side below receiving groove, the inside of receiving groove is rotatably connected with mounting rod, the surface middle part and lower end of mounting rod are all provided with threaded mounting hole, the bottom surface middle part of mounting rod is fixedly connected with positioning block, the surface upper end of mounting rod is magnetically connected with electromagnet and is resisted, when moving downward and grabbing article by electric push rod drive magnetic type suction cup, mounting rod is automatically unlocked and falls, it is convenient for the structure of mounting rod connection to isolate and protect around article, and unmanned aerial vehicle is not suspended goods, mounting rod is in storage state, to reduce wind resistance in turn.
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Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically to a magnetic suction robotic arm suspension device based on an UAV platform. Background Technology

[0002] The magnetic robotic arm of the drone platform is a device that integrates electromagnetic adsorption and multi-joint operation technology. It can achieve precise grasping, suspension and transportation, and is widely used in fields such as power inspection and emergency rescue. It has advantages such as high efficiency, safety and high flexibility, and will develop towards intelligence and lightweight in the future.

[0003] In existing technologies, drone-mounted robotic arms typically lack protective devices around them. For example, a Chinese patent discloses an electromagnetic adsorption device based on a drone (publication number: CN216994850U). After the robotic arm fixes an object below it, the fixed object is easily affected by the external environment during flight. For example, sand, debris, or chemical splashes may come into contact with the robotic arm and the fixed object, which can easily affect the reliability of the robotic arm's suspension operation. To address this issue, a magnetic suction robotic arm suspension device based on a drone platform is proposed to solve the above problems. Utility Model Content

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A magnetic suction robotic arm suspension device based on a drone platform includes a drone, an extension mechanism is provided below the drone, the drone includes an electric push rod and a magnetic suction cup, and the extension mechanism includes an electromagnet.

[0006] The expansion mechanism also includes a first connecting rod, of which four first connecting rods are provided, and each first connecting rod has a storage groove in the middle of its inner wall. The storage groove is consistent with the length direction of the first connecting rod. An extension plate is also fixedly connected to the bottom surface of the first connecting rod near the end of the storage groove. The extension plate is fixedly connected to the electromagnet on the side below the storage groove.

[0007] The storage slot is rotatably connected to an installation rod, and the installation rod has threaded mounting holes at the middle and lower ends of its surface. A positioning block is fixedly connected to the middle of the bottom surface of the installation rod.

[0008] The upper surface of the mounting rod is abutted against and magnetically connected to the electromagnet.

[0009] As a further embodiment of this utility model: the first connecting rod is fixedly connected to two limit rods on the side away from the extension plate, and the outer sides of the two limit rods are slidably connected to a second connecting rod, and a positioning hole is opened on the outer wall of the second connecting rod between the two limit rods.

[0010] As a further embodiment of this utility model: the side of the second connecting rod abuts against both the first connecting rod and the mounting rod, and the interior of the positioning hole is inserted into the positioning block.

[0011] As a further embodiment of this utility model: the drone includes a main body, and wings are fixedly connected to all four sides of the side walls of the main body, and landing gear is fixedly installed under each wing.

[0012] As a further embodiment of this utility model: the lower part of the main body is fixedly installed with an electric push rod, the extension end of the electric push rod is fixedly installed with an equipment box, and the bottom of the equipment box is fixedly installed with a magnetic suction cup.

[0013] As a further embodiment of this utility model: the outer wall of the equipment box is rotatably connected to different first connecting rods on all four sides, and the upper end of each landing gear is rotatably connected to different second connecting rods.

[0014] As a further embodiment of this utility model: the bottom of each of the magnetic suction cups is located above the bottom of the landing gear.

[0015] The beneficial effects of this utility model are:

[0016] This utility model uses a magnetic suction cup to attract and grab items under the drone. The magnetic suction cup is equipped with unfoldable mounting rods around its perimeter. When the magnetic suction cup is moved downward by an electric push rod and grabs an item, the mounting rods automatically unlock and fall. The structure of the mounting rod connection provides isolation and protection around the item. When the drone is not carrying any cargo, the mounting rods are in a retracted state, thereby reducing wind resistance and facilitating the movement of the drone.

[0017] The mounting rod has multiple threaded mounting holes on its surface, which can be used with bolts or other fasteners to install foreign object protection plates or windproof plates. In addition, the mounting rod also enhances the drone's extended functionality. The threaded mounting holes can also be used to fix cameras, LiDAR, or additional mechanical grippers, adapting to multiple mission scenarios such as grasping, inspection, and maintenance. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a frontal sectional view of the overall structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the overall structure above the extension mechanism in this utility model;

[0022] Figure 4 This is a schematic diagram of the overall structure below the extension mechanism in this utility model.

[0023] In the diagram: 1. Drone; 101. Main body; 102. Wing; 103. Landing gear; 104. Electric push rod; 105. Equipment box; 106. Magnetic suction cup; 2. Extension mechanism; 201. First connecting rod; 202. Storage slot; 203. Extension plate; 204. Electromagnet; 205. Mounting rod; 206. Threaded mounting hole; 207. Positioning block; 208. Limiting rod; 209. Second connecting rod; 210. Positioning hole. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1-4 As shown, a magnetic suction robotic arm suspension device based on a drone platform includes a drone 1. An extension mechanism 2 is located below the drone 1. The drone 1 includes an electric push rod 104 and a magnetic suction cup 106. The extension mechanism 2 includes an electromagnet 204. The extension mechanism 2 also includes four first connecting rods 201, each with a storage groove 202 in the middle of its inner wall. The storage grooves 202 are aligned with the length of the first connecting rod 201. An extension plate 203 is fixedly connected to the bottom surface of a connecting rod 201 near the end of the storage slot 202. The side of the extension plate 203 located below the storage slot 202 is fixedly connected to an electromagnet 204. A mounting rod 205 is rotatably connected to the inner side of the storage slot 202. Threaded mounting holes 206 are provided at the middle and lower ends of the surface of the mounting rod 205. A positioning block 207 is fixedly connected to the middle of the bottom surface of the mounting rod 205. The upper surface of the mounting rod 205 abuts against and is magnetically connected to the electromagnet 204. Figure 4 As shown, a fixing iron plate is embedded in the upper part of the surface of the mounting rod 205 to facilitate fixing to the electromagnet 204;

[0026] The first connecting rod 201 is located on the side away from the extension plate 203, with limit rods 208 fixedly connected to both ends. A second connecting rod 209 is slidably connected to the outer sides of the two limit rods 208. A positioning hole 210 is formed on the outer wall of the second connecting rod 209 between the two limit rods 208. The side of the second connecting rod 209 abuts against both the first connecting rod 201 and the mounting rod 205, and the interior of the positioning hole 210 is inserted into the positioning block 207. Figure 1As shown, when the first link 201 and the second link 209 abut against each other, the mounting rod 205 located in the storage groove 202 is fixed by being inserted into the positioning hole 210 by the positioning block 207.

[0027] The drone 1 includes a main body 101. Wings 102 are fixedly connected to all four sides of the main body 101, and landing gear 103 is fixedly installed below each wing 102. An electric push rod 104 is fixedly installed below the main body 101. An equipment box 105 is fixedly installed at the extension end of the electric push rod 104. Magnetic suction cups 106 are fixedly installed at the bottom of the equipment box 105. The outer walls of the equipment box 105 are rotatably connected to different first connecting rods 201. The upper ends of each landing gear 103 are rotatably connected to different second connecting rods 209. The bottom of each magnetic suction cup 106 is located above the bottom of the landing gear 103. Figure 1 As shown, the electric push rod 104, magnetic suction cup 106, and electromagnet 204 are all accessories purchased for the drone. The models of the above devices can be replaced according to the working needs of the drone. Therefore, the models and working principles of the above devices will not be specifically described in this application.

[0028] The working principle of this utility model:

[0029] First, by using bolts and other fasteners in the threaded mounting hole 206, a protective device such as a foreign object isolation plate is fixed to the bottom surface of the mounting rod 205, or a working auxiliary device such as a camera is installed.

[0030] Secondly, when the drone needs to grab and fix the object below, the electric push rod 104 drives the equipment box 105 to fall, and the magnetic suction cup 106 descends and contacts the top of the object. During this process, the first link 201 and the second link 209 rotate towards the electric push rod 104, and the distance between the first link 201 and the second link 209 increases. The limiting rod 208 is exposed to the external environment. At the same time, the limiting rod 208 ensures that the first link 201 and the second link 209 are mutually limited. In addition, the positioning hole 210 is separated from the positioning block 207. Then, the mounting rod 205 rotates and falls under the action of gravity. After the mounting rod 205 contacts the extension plate 203, the electromagnet 204 is energized. The electromagnet attracts and fixes the iron area at the upper end of the mounting rod 205. Then, the equipment connected to the mounting rod 205 through the threaded mounting hole 206 is fully deployed, and the object is isolated and protected, or the drone is assisted in its operation.

[0031] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A magnetic suction robotic arm suspension operation device based on a drone platform, comprising a drone (1), an extension mechanism (2) provided below the drone (1), the drone (1) comprising an electric push rod (104) and a magnetic suction cup (106), and the extension mechanism (2) comprising an electromagnet (204); Its features are, The expansion mechanism (2) also includes a first connecting rod (201), four of which are provided, and each of the first connecting rods (201) has a storage groove (202) in the middle of its inner wall. The storage groove (202) is consistent with the first connecting rod (201) in the length direction. An extension plate (203) is fixedly connected to the bottom surface of the first connecting rod (201) and near the end of the storage groove (202). The side of the extension plate (203) located below the storage groove (202) is fixedly connected to the electromagnet (204). The storage slot (202) is rotatably connected to an installation rod (205), and the installation rod (205) has threaded installation holes (206) at the middle and lower ends of its surface. A positioning block (207) is fixedly connected to the middle of the bottom surface of the installation rod (205). The upper surface of the mounting rod (205) is abutted against and magnetically connected to the electromagnet (204).

2. The magnetic suction robotic arm suspension device based on an unmanned aerial vehicle platform according to claim 1, characterized in that, The first connecting rod (201) is fixedly connected to two limit rods (208) on the side away from the extension plate (203). The outer sides of the two limit rods (208) are slidably connected to a second connecting rod (209). The outer wall of the second connecting rod (209) and located between the two limit rods (208) has a positioning hole (210).

3. The magnetic suction robotic arm suspension device based on an unmanned aerial vehicle platform according to claim 2, characterized in that, The side of the second link (209) abuts against both the first link (201) and the mounting rod (205), and the interior of the positioning hole (210) is inserted into the positioning block (207).

4. The magnetic suction robotic arm suspension device based on an unmanned aerial vehicle platform according to claim 3, characterized in that, The drone (1) includes a main body (101), and wings (102) are fixedly connected to all four sides of the side wall of the main body (101), and landing gear (103) is fixedly installed under each wing (102).

5. A magnetic suction robotic arm suspension device based on an unmanned aerial vehicle platform according to claim 4, characterized in that, The lower part of the main body (101) is fixedly installed with an electric push rod (104), and an equipment box (105) is fixedly installed on the extended end of the electric push rod (104). The bottom of the equipment box (105) is fixedly installed with a magnetic suction cup (106).

6. A magnetic suction robotic arm suspension device based on an unmanned aerial vehicle platform according to claim 5, characterized in that, The outer walls of the equipment box (105) are rotatably connected to different first links (201) on all four sides, and the upper ends of each landing gear (103) are rotatably connected to different second links (209).

7. A magnetic suction robotic arm suspension device based on an unmanned aerial vehicle platform according to claim 6, characterized in that, The bottom of each of the magnetic suction cups (106) is located above the bottom of the landing gear (103).