Unmanned aerial vehicle arm folding and unfolding device

Abstract

The utility model discloses an unmanned aerial vehicle arm retracting and releasing device, relates to the technical field of unmanned aerial vehicle arms, and provides the following scheme that the unmanned aerial vehicle arm retracting and releasing device comprises a machine base and a sliding mechanism arranged at the bottom of the machine base, the sliding mechanism comprises a working assembly and a sliding assembly, the working assembly comprises a motor, and the motor is fixedly connected into the machine base; the bottom end of the motor is fixedly connected with a circular gear, the outer wall of the circular gear is connected with a columnar gear in a meshed mode, the bottom of the columnar gear is fixedly connected with a rotating disc, and the sliding assembly comprises a sliding column. And a circular gear rotates to drive a cylindrical gear in meshed connection to rotate, so that a rotating disc is driven to rotate, a sliding column slides on the inner wall of the rotating disc along with rotation of the rotating disc and moves in a sliding groove formed in a chassis, the sliding direction is ensured, a fixed block is driven to move, and the effect of simultaneous movement is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicle arms, in particular to a retractable and deployable device for unmanned aerial vehicle arms. Background Art

[0002] With the continuous advancement of technology, more and more photographers are starting to use drones for aerial photography. The drone arm brings more possibilities to aerial photography. Due to the adjustable length of the arm, photographers can easily shoot at a higher or lower altitude.

[0003] For example, the Chinese utility model patent (CN 206141821 U) relates to a drone arm retracting device and a drone, the drone arm retracting device comprises a motor, a driving bevel gear connected to the output shaft of the motor, a plurality of driven bevel gears meshing with the driving bevel gear, a plurality of first bevel gear shafts, a plurality of second bevel gear shafts and a plurality of arms, the number of the driven bevel gears, the first bevel gear shafts and the second bevel gear shafts are consistent with the number of arms, the first bevel gear shaft has a first shaft and a first bevel gear, the second bevel gear shaft has a second shaft and a second bevel gear meshing with the first bevel gear, one end of the first shaft is connected to the driven bevel gear, the other end is connected to the first bevel gear, and the second shaft is relatively fixedly connected to one end of the arm. The drone arm retracting device of the utility model only needs one motor to retract and extend multiple arms, so that the volume of the arm retracting device can be greatly reduced, and the cost is greatly reduced.

[0004] However, in the above patent, the arm is retracted and extended by gears, a large number of gears are used, the degree of wear is high after long-term use, and the maintenance cost is increased. In addition, the patent retracts and extends the arm up and down, which will take up space when stored, so a drone arm retraction device is needed. Utility Model Content

[0005] The purpose of the utility model is to provide a UAV arm retractable device, which solves the problems in the prior art of a large number of gears, high degree of wear after long-term use, increased maintenance costs, and the patent retracts and retracts up and down, which takes up space when stored.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drone arm retracting and extending device, comprising a base and a sliding mechanism arranged at the bottom of the base, wherein the sliding mechanism comprises a working component and a sliding component;

[0007] The working assembly includes a motor, the inside of the base is fixedly connected with the motor, the bottom end of the motor is fixedly connected with a circular gear, the outer wall of the circular gear is meshedly connected with a columnar gear, and the bottom of the columnar gear is fixedly connected with a rotating disk;

[0008] The sliding assembly comprises a sliding column, the inner wall of the rotating disk is slidably connected with the sliding column, the top end of the sliding column is fixedly connected with a fixed block, and the outer wall of the sliding column is slidably connected with a chassis.

[0009] Preferably, the outer wall of the fixed block is fixedly connected to the first connecting block, the inner wall of the first connecting block is rotatably connected to the first rotating shaft, the outer wall of the first rotating shaft is rotatably connected to a connecting rod, one end of the connecting rod is rotatably connected to the second rotating shaft, the outer wall of the second rotating shaft is rotatably connected to the second connecting block, one side of the second connecting block is fixedly connected to a rotating block, the bottom of the rotating block is rotatably connected to a connecting column, the bottom end of the connecting column is fixedly connected to a positioning block, the inner wall of the positioning block is fixedly connected to an organic arm, one end of the organic arm is rotatably connected to a rotating shaft, and the outer wall of the rotating shaft is rotatably connected to a connecting block.

[0010] Preferably, the circular gear fits tightly with the columnar gear, and the circular gear forms a meshing structure with the columnar gear through the motor.

[0011] Preferably, the rotating disk is provided with a sliding groove which matches the sliding column, and the rotating disk forms a sliding structure with the sliding column through a columnar gear.

[0012] Preferably, the chassis is provided with a sliding groove which matches the sliding column, and the sliding column forms a sliding structure with the chassis via a rotating disk.

[0013] Preferably, the first connecting block and the second connecting block are connected via a connecting rod.

[0014] Preferably, the fixed block, chassis, first connecting block, first rotating axis, connecting rod, second rotating axis, second connecting block, rotating block, connecting column, positioning block, machine arm, rotating axis and connecting block are arranged in four groups, and the positional relationship of the four groups of fixed block, chassis, first connecting block, first rotating axis, connecting rod, second rotating axis, second connecting block, rotating block, connecting column, positioning block, machine arm, rotating axis and connecting block is rotationally symmetrical about the center of the base.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. By setting a rotating disk, the motor fixed inside the base works and runs, so that the circular gear rotates, causing the meshing cylindrical gear to rotate, thereby driving the rotating disk to rotate, so that the sliding column slides on its inner wall as the rotating disk rotates, and at the same time moves in the slide groove opened in the chassis to ensure the sliding direction, drive the fixed block to move, and achieve the effect of simultaneous movement.

[0017] 2. By setting a connecting rod and changing the position of the fixed block, the first connecting block and the first rotating shaft can be driven to move. Through the connection of the connecting rod, the second connecting block and the rotating block are pulled to move, and at the same time, the positioning block and the machine arm fixed at the bottom of the connecting column are driven to move, so that the machine arm rotates around the rotating shaft and the connecting block, thereby achieving the effect of retracting and extending the machine arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a first-view structural diagram of the UAV arm retractable device proposed by the utility model;

[0019] Figure 2 This is a second perspective structural schematic diagram of the UAV arm retractable device proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the sliding structure of the UAV arm retracting and extending device proposed by the utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure of the fixed block and the arm of the UAV arm retracting and extending device proposed by the utility model.

[0022] In the figure: 1. base; 2. motor; 3. circular gear; 4. columnar gear; 5. rotating disk; 6. sliding column; 7. fixed block; 8. chassis; 9. first connecting block; 10. first rotating shaft; 11. connecting rod; 12. second rotating shaft; 13. second connecting block; 14. rotating block; 15. connecting column; 16. positioning block; 17. machine arm; 18. rotating shaft; 19. connecting block. DETAILED DESCRIPTION

[0023] 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.

[0024] Example 1

[0025] like Figure 1-4 As shown, the drone arm retracting and extending device shown in the figure includes a base 1 and a sliding mechanism arranged at the bottom of the base 1, and the sliding mechanism includes a working component and a sliding component;

[0026] The working assembly includes a motor 2, the motor 2 is fixedly connected to the inside of the base 1, a circular gear 3 is fixedly connected to the bottom end of the motor 2, a columnar gear 4 is meshedly connected to the outer wall of the circular gear 3, and a rotating disk 5 is fixedly connected to the bottom of the columnar gear 4;

[0027] The sliding assembly includes a sliding column 6 , the inner wall of the rotating disk 5 is slidably connected to the sliding column 6 , the top of the sliding column 6 is fixedly connected to a fixed block 7 , and the outer wall of the sliding column 6 is slidably connected to a chassis 8 .

[0028] Among them, Figure 3 As shown, the circular gear 3 fits tightly with the columnar gear 4, and the circular gear 3 forms a meshing structure with the columnar gear 4 through the motor 2, which is conducive to the motor 2 driving the circular gear 3 to rotate, causing the columnar gear 4 to drive the rotating disk 5 to rotate and adjust the position of the sliding column 6.

[0029] Among them, Figure 3 As shown, the rotating disk 5 is provided with a sliding groove that matches the sliding column 6. The rotating disk 5 forms a sliding structure with the sliding column 6 through the columnar gear 4, which is conducive to the rotation of the rotating disk 5 to drive the sliding column 6 to move, pull the position of the arm 17, and achieve the purpose of contraction.

[0030] Among them, Figure 2 As shown, the chassis 8 is provided with a sliding groove that matches the sliding column 6. The sliding column 6 and the chassis 8 form a sliding structure through the rotating plate 5, which is conducive to determining the sliding direction of the sliding column 6 and ensuring linear sliding.

[0031] Example 2

[0032] like Figure 1 , Figure 2 and Figure 4 As shown, this embodiment further illustrates Example 1, the outer wall of the fixed block 7 is fixedly connected to the first connecting block 9, the inner wall of the first connecting block 9 is rotatably connected to the first rotating shaft 10, the outer wall of the first rotating shaft 10 is rotatably connected to the connecting rod 11, one end of the connecting rod 11 is rotatably connected to the second rotating shaft 12, the outer wall of the second rotating shaft 12 is rotatably connected to the second connecting block 13, one side of the second connecting block 13 is fixedly connected to the rotating block 14, the bottom of the rotating block 14 is rotatably connected to the connecting column 15, the bottom end of the connecting column 15 is fixedly connected to the positioning block 16, the inner wall of the positioning block 16 is fixedly connected to the organic arm 17, one end of the organic arm 17 is rotatably connected to the rotating shaft 18, and the outer wall of the rotating shaft 18 is rotatably connected to the connecting block 19.

[0033] Among them, Figure 4 As shown, the first connecting block 9 and the second connecting block 13 are connected by a connecting rod 11, which is conducive to the fixed block 7 pulling the rotating block 14 to move, driving the machine arm 17 to move, and realizing the retracting and extending operation.

[0034] Among them, Figure 1As shown, the fixed block 7, the chassis 8, the first connecting block 9, the first rotating shaft 10, the connecting rod 11, the second rotating shaft 12, the second connecting block 13, the rotating block 14, the connecting column 15, the positioning block 16, the machine arm 17, the rotating shaft 18 and the connecting block 19 are arranged in four groups, and the positional relationship of the four groups of fixed blocks 7, the chassis 8, the first connecting block 9, the first rotating shaft 10, the connecting rod 11, the second rotating shaft 12, the second connecting block 13, the rotating block 14, the connecting column 15, the positioning block 16, the machine arm 17, the rotating shaft 18 and the connecting block 19 is rotationally symmetrically distributed about the center of the machine base 1, which is conducive to driving the machine arm 17 to be retracted and extended by the motor 2 to realize automatic operation.

[0035] When in use: first, the motor 2 fixed inside the base 1 is operated to rotate the circular gear 3, causing the meshing column gear 4 to rotate, thereby driving the rotating disk 5 to rotate, so that the sliding column 6 slides on the inner wall of the rotating disk 5 as the rotating disk 5 rotates, and at the same time moves in the sliding groove provided in the chassis 8 to ensure the sliding direction, driving the fixed block 7 to move, and achieving the effect of simultaneous movement;

[0036] Finally, by changing the position of the fixed block 7, the first connecting block 9 and the first rotating shaft 10 can be driven to move, and through the connection of the connecting rod 11, the second connecting block 13 and the rotating block 14 are pulled to move, and at the same time, the positioning block 16 and the arm 17 fixed at the bottom of the connecting column 15 are driven to move, so that the arm 17 rotates around the rotating shaft 18 and the connecting block 19, so as to achieve the effect of retracting and extending the arm 17.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although 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. An unmanned aerial vehicle arm retracting and extending device, comprising a base (1) and a sliding mechanism arranged at the bottom of the base (1), characterized in that: The sliding mechanism comprises a working component and a sliding component; The working assembly comprises a motor (2), the motor (2) is fixedly connected inside the machine base (1), a circular gear (3) is fixedly connected to the bottom end of the motor (2), a columnar gear (4) is meshedly connected to the outer wall of the circular gear (3), and a rotating disk (5) is fixedly connected to the bottom of the columnar gear (4); The sliding assembly comprises a sliding column (6), the inner wall of the rotating disk (5) is slidably connected to the sliding column (6), the top end of the sliding column (6) is fixedly connected to a fixed block (7), and the outer wall of the sliding column (6) is slidably connected to a chassis (8).

2. The drone arm retractable device according to claim 1, characterized in that: The outer wall of the fixed block (7) is fixedly connected to a first connecting block (9); the inner wall of the first connecting block (9) is rotatably connected to a first rotating shaft (10); the outer wall of the first rotating shaft (10) is rotatably connected to a connecting rod (11); one end of the connecting rod (11) is rotatably connected to a second rotating shaft (12); the outer wall of the second rotating shaft (12) is rotatably connected to a second connecting block (13); one side of the second connecting block (13) is fixedly connected to a rotating block (14); the bottom of the rotating block (14) is rotatably connected to a connecting column (15); the bottom end of the connecting column (15) is fixedly connected to a positioning block (16); the inner wall of the positioning block (16) is fixedly connected to an organic arm (17); one end of the organic arm (17) is rotatably connected to a rotating shaft (18); the outer wall of the rotating shaft (18) is rotatably connected to a connecting block (19).

3. The drone arm retractable device according to claim 1, characterized in that: The circular gear (3) is tightly fitted with the columnar gear (4), and the circular gear (3) forms a meshing structure with the columnar gear (4) through the motor (2).

4. The drone arm retractable device according to claim 1, characterized in that: The rotating disk (5) is provided with a sliding groove which matches the sliding column (6), and the rotating disk (5) forms a sliding structure with the sliding column (6) through the columnar gear (4).

5. The drone arm retractable device according to claim 1, characterized in that: The chassis (8) is provided with a sliding groove that matches the sliding column (6), and the sliding column (6) forms a sliding structure with the chassis (8) through the rotating disk (5).

6. The drone arm retractable device according to claim 2, characterized in that: The first connecting block (9) and the second connecting block (13) are connected via a connecting rod (11).

7. The drone arm retractable device according to claim 2, characterized in that: The fixed block (7), chassis (8), first connecting block (9), first rotating shaft (10), connecting rod (11), second rotating shaft (12), second connecting block (13), rotating block (14), connecting column (15), positioning block (16), machine arm (17), rotating shaft (18) and connecting block (19) are arranged in four groups, and the positional relationship of the four groups of the fixed block (7), chassis (8), first connecting block (9), first rotating shaft (10), connecting rod (11), second rotating shaft (12), second connecting block (13), rotating block (14), connecting column (15), positioning block (16), machine arm (17), rotating shaft (18) and connecting block (19) is distributed in rotational symmetry about the center of the machine base (1).

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