Unmanned aerial vehicle arm folding structure

Abstract

The utility model relates to the technical field of arm folding structures, in particular to an unmanned aerial vehicle arm folding structure which comprises a first arm connected with an unmanned aerial vehicle body, a foldable second arm and a propeller used for controlling flight, the second arm is arranged on the right side of the first arm, and the propeller is arranged on the top of the second arm. The bottom of the first vehicle arm and the bottom of the second vehicle arm are fixedly connected with first protection plates, the top of the second vehicle arm is fixedly connected with a second protection plate, the top of the second protection plate is fixedly connected with a fixing plate, the bottom of the fixing plate is arranged in a two-position concave mode, the outer side of the first vehicle arm is fixedly connected with a fixing block, and a groove is formed in the fixing block. According to the folding mechanism of the unmanned aerial vehicle, the rotating structure and the positioning component are arranged between the vehicle arms, so that the folding process is more convenient, and the complex process of screw fixing and the condition of abrasion of a contact surface are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of machine arm folding structures, in particular to a machine arm folding structure for a drone. Background Art

[0002] A drone is an unmanned aircraft controlled by a radio remote control device and a self-contained program control device, or operated completely or intermittently autonomously by an onboard computer. With the development of technology, the application fields of drones are becoming more and more extensive. In order to facilitate users to carry and store them, drones with foldable arm structures have come into being.

[0003] When a common drone arm is folded and stored, the screws at the rotating part are usually loosened one by one, so that the rotating part is in a loose and rotatable state. The sequential tightening of the screws makes the folding process cumbersome, and if the screws clamp the rotating part too tightly, it is easy to cause a certain degree of wear on the contact surface. Therefore, a drone arm folding structure is proposed to address the above problems. Utility Model Content

[0004] The utility model aims to provide a folding structure for the arm of a drone, so as to solve the problem that the folding process of the rotating parts controlled by screws is not only cumbersome but also the contact surface is easily worn.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A folding arm structure for a drone comprises a first arm connected to a drone body, a foldable second arm and a propeller for controlling flight, wherein a second arm is provided on the right side of the first arm, a propeller is provided on the top of the second arm, a first protective plate is fixedly connected to the bottom of the first arm and the second arm, a second protective plate is fixedly connected to the top of the second arm, a fixing plate with two depressions on the bottom is fixedly connected to the top of the second protective plate, a fixing block is fixedly connected to the outer side of the first arm, a groove is provided in the fixing block, a guide rod is fixedly connected to the groove provided in the fixing block, a spring is provided on the outer side of the guide rod, a cross plate is slidably connected to the outer side of the guide rod, a limiting block is fixedly connected to the top of the cross plate, a magnetic block is provided in the limiting block, a pressing plate with a T-shaped cross section is fixedly connected to the front and rear sides of the cross plate, and a flexible fixing belt is fixedly connected to the first arm.

[0007] Preferably, the two first protective plates are rotatably arranged, and the right end of the first machine arm and the left end of the second machine arm are both fixedly connected with a rubber layer.

[0008] Preferably, the left end of the second protective plate is tightly fitted to the first machine arm, and the fixing plate is arranged above the fixing block.

[0009] Preferably, the limit block fits tightly with the depression at the bottom of the fixing plate, and the fixing plate is made of metal.

[0010] Preferably, the spring is arranged between the top of the first machine arm and the bottom of the cross plate, and there are two guide rods in total.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] In the utility model, by providing the first machine arm, the second machine arm, the propeller, the first protective plate, the second protective plate, the fixing plate, the fixing block, the limiting block, the groove, the cross plate, the pressing plate and the spring, the user can control the fit between the limiting block and the fixing plate by controlling the pressing plate, because the magnetic attraction force is generated between the magnetic block provided in the limiting block and the fixing plate provided in metal, the fixing plate is fixed above the fixing block at this time, when the second machine arm needs to be folded and stored, the pressing plate is pressed down, the guide rod makes the cross plate move downward in the vertical direction, drives the limiting block away from the fixing plate, and then holds the second machine arm to move it to the right By rotating downward, the rubber layer arranged on the right side of the first arm and the rubber layer arranged on the left side of the second arm make the two ends not easily damaged, the first protective plate and the second protective plate arranged in an arc shape on the side make the first arm and the second arm have a certain protective effect when they are fitted together, and the flexibly arranged fixing belts arranged in the first arm and the second arm can bear a part of the gravity of the second arm after bending, so as to reduce the force at the rotating shaft of the first protective plate, and the rotating structure and positioning components arranged between the arms make the folding process more convenient, avoiding the cumbersome process of screw fixing and the wear of the contact surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the folding structure of the second machine arm of the utility model;

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the fixing block of the utility model;

[0016] Figure 4 This is a schematic diagram of the top view structure of the fixing block of the utility model.

[0017] In the figure: 1. first arm; 2. second arm; 3. propeller; 4. first protective plate; 5. rubber layer; 6. second protective plate; 7. fixing plate; 8. fixing block; 9. limit block; 10. groove; 11. cross plate; 12. pressing plate; 13. spring; 14. magnetic block; 15. fixing belt; 16. guide rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0020] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0021] See also Figure 1-4 , the utility model provides a technical solution:

[0022] A folding structure of an unmanned aerial vehicle arm comprises a first arm 1 connected to a main body of the unmanned aerial vehicle, a foldable second arm 2 and a propeller 3 for controlling flight, the second arm 2 is arranged on the right side of the first arm 1, the propeller 3 is arranged on the top of the second arm 2, the first arm 1 and the second arm 2 are both fixedly connected to a first protective plate 4 at the bottom, the second arm 2 is fixedly connected to a second protective plate 6 at the top, the second protective plate 6 is fixedly connected to a fixing plate 7 with two concave settings at the bottom, the first arm 1 is fixedly connected to a fixing block 8 at the outside, the fixing block 8 is provided with a groove 10, and the fixing block 8 is fixedly connected to the outside of the first arm 1. A guide rod 16 is fixedly connected in the groove 10 opened in 8, a spring 13 is provided on the outside of the guide rod 16, a cross plate 11 is slidably connected to the outside of the guide rod 16, a limiting block 9 is fixedly connected to the top of the cross plate 11, a magnetic block 14 is provided in the limiting block 9, a pressing plate 12 with a T-shaped cross-section is fixedly connected on the front and rear sides of the cross plate 11, and a flexible fixing belt 15 is fixedly connected in the first arm 1. By setting the rotating structure and positioning components between the arms, the folding process is made more convenient, and the cumbersome process of screw fixing and the wear of the contact surface are avoided.

[0023] The two first protective plates 4 are rotatably arranged, and the right end of the first arm 1 and the left end of the second arm 2 are fixedly connected with a rubber layer 5 to facilitate the rotation of the second arm 2 and protect one end of the first arm 1 and the second arm 2 from being easily damaged; the left end of the second protective plate 6 is tightly fitted with the first arm 1, and the fixing plate 7 is arranged above the fixing block 8, so that the first arm 1 and the second arm 2 are easier to fold; the limit block 9 is tightly fitted with the recessed part at the bottom of the fixing plate 7, and the fixing plate 7 is metal-arranged to facilitate the fixation of the fixing plate 7; the spring 13 is arranged between the top of the first arm 1 and the bottom of the cross plate 11, and there are two guide rods 16 to facilitate the movement of the cross plate 11.

[0024] Working process: When the folding structure of the drone arm is in use, first connect one end of the first arm 1 to the drone body. When the drone arm needs to be folded and stored after use, the user holds the pressing plates 12 on the front and rear sides of the fixing block 8 and presses it down, driving the cross plate 11 to move downward on the outside of the guide rod 16, and the limit block 9 moves downward at the same time. The spring 13 is compressed and moves downward to a suitable position. The limit block 9 is away from the recessed part at the bottom of the fixing plate 7. Then, the second arm 2 is held and rotated to the lower right, driving the first protective plate 4 at the bottom of the second arm 2 to rotate at the first protective plate 4 at the bottom of the first arm 1. The second protective plate 6 and the fixing plate 7 are rotated at the same time. At this time, the second arm 2 is in a foldable state. In the folded storage state, when the drone needs to be used, the user presses down the pressing plate 12 and then rotates the second arm 2 in the opposite direction. When one end of the second arm 2 is close to the first arm 1, the rubber layer 5 protects it from being damaged when it is fitted. Then the pressing plate 12 is released, and the elastic force of the spring 13 drives the cross plate 11 and the limit block 9 to move up at the same time. Due to the magnetic block 14 arranged in the limit block 9, after approaching the metal fixed plate 7, the limit block 9 is magnetically attracted to the recess at the bottom of the fixed plate 7. At this time, the fixed plate 7 is fixed, and the second arm 2 is fixed at the same time. The rotating structure and positioning components arranged between the arms make the folding process more convenient, avoiding the cumbersome process of screw fixing and the wear of the contact surface.

[0025] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0026] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foldable arm structure for a drone, comprising a first arm (1) connected to a drone body, a foldable second arm (2) and a propeller (3) for controlling flight, characterized in that: A second arm (2) is provided on the right side of the first arm (1), a propeller (3) is provided on the top of the second arm (2), a first protective plate (4) is fixedly connected to the bottom of both the first arm (1) and the second arm (2), a second protective plate (6) is fixedly connected to the top of the second arm (2), a fixing plate (7) with two recesses at the bottom of the second protective plate (6) is fixedly connected to the top, a fixing block (8) is fixedly connected to the outside of the first arm (1), a groove (10) is provided in the fixing block (8), and the A guide rod (16) is fixedly connected to a groove (10) formed in the fixed block (8); a spring (13) is provided on the outside of the guide rod (16); a cross plate (11) is slidably connected to the outside of the guide rod (16); a limit block (9) is fixedly connected to the top of the cross plate (11); a magnetic block (14) is provided in the limit block (9); a pressing plate (12) having a T-shaped cross section is fixedly connected to the front and rear sides of the cross plate (11); and a flexible fixing belt (15) is fixedly connected to the inside of the first machine arm (1).

2. The drone arm folding structure according to claim 1, characterized in that: The two first protection plates (4) are rotatably arranged, and the right end of the first machine arm (1) and the left end of the second machine arm (2) are both fixedly connected with a rubber layer (5).

3. The drone arm folding structure according to claim 1, characterized in that: The left end of the second protective plate (6) is tightly fitted to the first machine arm (1), and the fixing plate (7) is arranged above the fixing block (8).

4. The drone arm folding structure according to claim 1, characterized in that: The limit block (9) fits tightly with the recessed portion at the bottom of the fixing plate (7), and the fixing plate (7) is made of metal.

5. The drone arm folding structure according to claim 1, characterized in that: The spring (13) is arranged between the top of the first machine arm (1) and the bottom of the cross plate (11), and there are two guide rods (16) in total.

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