Unmanned aerial vehicle arm folding and unfolding device

Abstract

The unmanned aerial vehicle arm folding and unfolding device comprises an installation base and swing arms, one side and the bottom of the installation base are open, a shaft rod is rotationally connected to the interior of the installation base through a bearing, the two swing arms are fixed to the surface of the shaft rod, and the other ends of the two swing arms are fixedly connected with a connecting assembly. The interior of the swing arm is hollow, an inserting groove is formed in the end, close to the connecting assembly, of the swing arm, and the connecting assembly is clamped into the inserting groove. The mounting base, the shaft lever, the swing arm, the connecting assembly, the arm lever, the connecting plate and the driving assembly are arranged, one end of the arm lever is fixedly connected with the connecting assembly, the other end of the arm lever is used for mounting an unmanned aerial vehicle propeller, and a micro motor of the driving assembly drives a worm gear on the surface of the shaft lever to rotate during use, so that the shaft lever is driven to rotate; the shaft rod is used for driving the swing arm, the connecting assembly and the arm rod to rotate, so that the whole arm rod can rotate up and down, and automatic folding and unfolding of the arm rod are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned plane accessory technical field especially, relates to a kind of unmanned plane arm retraction device. BACKGROUND

[0002] Unmanned plane is divided into military and civilian according to application field, and unmanned plane is divided into reconnaissance aircraft and target aircraft in military aspect.Unmanned plane+industry application is the real need of unmanned plane in civilian aspect, and it greatly expands the purpose of unmanned plane itself, and developed countries are also actively expanding industry application and developing unmanned plane technology in the application of aerial photography, agriculture, plant protection, micro-selfie, express delivery, disaster rescue, observing wild animals, monitoring infectious diseases, surveying, news reporting, power patrol, disaster relief, film shooting, manufacturing romance and so on.

[0003] The current plant protection type unmanned plane needs to fold and store the arm when not in use due to the relatively long length of the arm, thereby facilitating the transportation of the unmanned plane by vehicle. However, the existing unmanned plane arm needs to be manually released from the fixing before folding when folding and storing, which is not convenient and fast to operate. Secondly, if the unmanned plane explodes and the arm is damaged, the entire arm needs to be replaced, resulting in high use cost. Therefore, further improvement is needed. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides an unmanned plane arm retraction device.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an unmanned plane arm retraction device includes a mounting seat and a swing arm, one side and the bottom of the mounting seat are designed as open, a shaft rod is rotatably connected inside the mounting seat through a bearing, two swing arms are fixed on the surface of the shaft rod, a connecting assembly is fixedly connected to the other end of the two swing arms, the swing arm is designed as hollow inside, a slot is formed at the end of the swing arm close to the connecting assembly, the connecting assembly is clamped inside the slot, an arm rod is fixedly connected to the other end of the connecting plate, a driving assembly for driving the rotation of the shaft rod is arranged inside and on the upper surface of the mounting seat, and a baffle plate is fixed to the inner top wall of the mounting seat.

[0006] Further, mounting plates are fixedly connected to the outer side walls of the mounting seat, and mounting holes are formed in the mounting plates.

[0007] Further, a threading hole is formed in the bottom wall of the end of the arm rod close to the mounting seat, a plurality of mounting holes are formed in the connecting plate, and a through hole is formed in the middle of the connecting plate.

[0008] Further, the connecting assembly comprises an insertion block fixedly connected with the two swing arms, the insertion block is inserted into the insertion slot, grooves are formed in the two sides of the insertion block, springs are fixedly connected to the inner side walls of the grooves, clamping rods are fixedly connected to the other ends of the springs, clamping holes are formed in the two sides of the insertion slot, and the clamping rods are clamped into the clamping holes.

[0009] Further, a worm gear is fixedly connected to the middle surface of the shaft rod, the driving assembly comprises a micro motor fixed to the upper surface of the mounting seat, a vertical shaft is fixedly connected to the bottom output end of the micro motor, the vertical shaft penetrates through the top wall of the mounting seat and is rotationally connected to the top wall of the mounting seat through a bearing, and a worm is fixed to the bottom end surface of the vertical shaft and engages with the worm gear.

[0010] Further, a top shell is fixed to the upper surface of the mounting seat, and the micro motor is located in the top shell.

[0011] The utility model discloses the beneficial effect of having:

[0012] 1. In use, the unmanned aerial vehicle arm retraction device is provided with a mounting seat, a shaft rod, a swing arm, a connecting assembly, an arm rod, a connecting plate and a driving assembly, one end of the arm rod is fixedly connected with the connecting assembly, the other end of the arm rod is used for mounting the unmanned aerial vehicle propeller, the worm gear on the surface of the shaft rod is driven to rotate by the micro motor of the driving assembly in use, thereby driving the shaft rod to rotate, the swing arm, the connecting assembly and the arm rod are driven to rotate by the shaft rod, the whole arm rod can rotate up and down, and the automatic retraction of the arm rod is realized.

[0013] 2. In use, the unmanned aerial vehicle arm retraction device is provided with a shaft rod, a swing arm, a connecting assembly and an arm rod, since the arm rod and the connecting assembly are detachably connected and the connecting mode is quick to disassemble and assemble, when the unmanned aerial vehicle arm rod is damaged due to explosion, the arm rod can be replaced alone, thereby reducing the use cost. DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the utility model, the following will be briefly introduced the drawings needed to be used in the specific implementation manner, obviously, the drawings in the following description only some embodiments of the utility model, for the ordinary skilled person in the art, without paying the creative labor, can also obtain other drawings according to these drawings.

[0015] Fig. 1 The overall perspective view of the utility model;

[0016] Fig. 2 The overall sectional view of the utility model;

[0017] Fig. 3 The connecting assembly and the arm rod connection of the utility model are shown in the drawing.

[0018] The attached figures are labeled as follows:

[0019] 1. Mounting base; 2. Shaft; 21. Worm gear; 3. Swing arm; 4. Connecting assembly; 41. Insert block; 42. Groove; 43. Spring; 44. Locking rod; 5. Arm; 51. Slot; 52. Locking hole; 53. Wire hole; 6. Connecting plate; 61. Through hole; 7. Drive assembly; 71. Micro motor; 72. Vertical shaft; 73. Worm gear; 74. Top shell; 8. Rack plate; 9. Mounting plate. Detailed Implementation

[0020] 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.

[0021] like Figs. 1-3 As shown, a drone arm retraction and extension device is disclosed, including a mounting base 1 and a swing arm 3. The mounting base 1 has an open design on one side and the bottom. A shaft 2 is rotatably connected inside the mounting base 1 via bearings. Two swing arms 3 are fixed to the surface of the shaft 2. A connecting component 4 is fixedly connected to the other end of the two swing arms 3. The swing arms 3 have a hollow design inside, and a slot 51 is opened at one end of the swing arm 3 near the connecting component 4. The connecting component 4 is snapped into the slot 51. A connecting plate 6 is fixedly connected to the other end of the arm 5. A drive component 7 for driving the shaft 2 to rotate is provided inside the mounting base 1 and on its upper surface. A rib plate 8 is fixed to the inner top wall of the mounting base 1.

[0022] Mounting plates 9 are fixedly connected to both sides of the outer wall of the mounting base 1, and mounting holes are provided on the mounting plates 9.

[0023] In this embodiment, the mounting holes on the mounting plate 9 are matched with the screw holes on the drone body. The mounting plate 9 is fixed by screwing bolts into the mounting holes and the screw holes on the drone body.

[0024] The bottom wall of the boom 5 near the mounting base 1 has a wire hole 53, the connecting plate 6 has multiple mounting holes, and the connecting plate 6 has a through hole 61 in the middle.

[0025] In this embodiment, the mounting holes on the connecting plate 6 are matched with the drone propeller drive mechanism. The connecting plate 6 is used to install the propeller drive mechanism, and the wire hole 53 at the bottom of the arm 5 and the through hole 61 on the connecting plate 6 are used to pass the wires of the drone propeller drive mechanism.

[0026] The connecting assembly 4 comprises an insertion block 41 fixedly connected with the two swing arms 3, and the insertion block 41 is inserted into an insertion slot 51, both sides of the insertion block 41 are provided with a groove 42, the inner side wall of the groove 42 is fixedly connected with a spring 43, the other end of the spring 43 is fixedly connected with a clamping rod 44, both sides of the insertion slot 51 are provided with a clamping hole 52, and the end of the clamping rod 44 away from the spring 43 is clamped into the clamping hole 52.

[0027] In the embodiment, the arm rod 5 is fixedly connected with the swing arm 3 through the connecting assembly 4. During installation, the clamping rod 44 is first squeezed to retract into the groove 42, and then the insertion slot 51 of the arm rod 5 is sleeved on the surface of the insertion block 41. When the insertion block 41 is completely clamped into the insertion slot 51, the spring 43 will squeeze the clamping rod 44 to be clamped into the clamping hole 52, so as to realize the installation and fixation of the arm rod 5. When the arm rod 5 needs to be disassembled, the clamping rod 44 is squeezed to be separated from the clamping hole 52, so that the arm rod 5 can be disassembled from the surface of the insertion block 41, thereby facilitating the replacement of the arm rod 5.

[0028] The middle surface of the shaft rod 2 is fixedly connected with a worm gear 21, the driving assembly 7 comprises a micro motor 71 fixedly connected to the upper surface of the mounting seat 1, the bottom output end of the micro motor 71 is fixedly connected with a vertical shaft 72, the vertical shaft 72 penetrates through the top wall of the mounting seat 1 and is rotatably connected with the top wall of the mounting seat 1 through a bearing, and the bottom end surface of the vertical shaft 72 is fixedly connected with a worm 73, and the worm 73 is engaged with the worm gear 21.

[0029] Under the driving action of the worm 73 and the worm gear 21, the micro motor 71 drives the shaft rod 2 to rotate, thereby driving the two swing arms 3 to rotate, and the swing arm 3 drives the arm rod 5 to swing up and down through the connecting assembly 4. When the unmanned aerial vehicle is used, the arm rod 5 is driven to rotate upward to the horizontal position, and when not used, the arm rod 5 is driven to rotate downward to the vertical state. In the embodiment, the control of the micro motor 71 is controlled by the controller of the unmanned aerial vehicle itself.

[0030] The upper surface of the mounting seat 1 is fixedly connected with a top shell 74, and the micro motor 71 is located in the top shell 74. The top shell 74 can protect the micro motor 71.

[0031] Working principle: when the device is installed, the mounting plate 9 is fixedly connected with the unmanned aerial vehicle body, the connecting plate 6 is fixedly connected with the propeller mechanism of the unmanned aerial vehicle, and the wire of the propeller mechanism passes through the through hole 61, the inside of the arm rod 5 and the threading hole 53 in sequence and is connected with the unmanned aerial vehicle body. When the unmanned aerial vehicle is used, the micro motor 71 is controlled to drive the shaft rod 2 to rotate, so that the arm rod 5 is driven to rotate upward to the horizontal position. When the unmanned aerial vehicle is not used, the micro motor 71 is controlled to drive the shaft rod 2 to reverse, so that the arm rod 5 is driven to rotate downward to the vertical state.

[0032] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific implementation. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.

Claims

1. A drone arm retraction and extension device, comprising an arm (5), characterized in that: The device includes a mounting base (1) and a swing arm (3). The mounting base (1) has an open design on one side and at the bottom. The mounting base (1) is rotatably connected to a shaft (2) through a bearing. Two swing arms (3) are fixed on the surface of the shaft (2). The other ends of the two swing arms (3) are fixedly connected to a connecting component (4). The swing arm (3) is hollow inside. A slot (51) is provided at one end of the swing arm (3) near the connecting component (4). The connecting component (4) is snapped into the slot (51). A connecting plate (6) is fixedly connected to the other end of the arm (5). The mounting base (1) has a drive component (7) for rotating the shaft (2) inside and on its upper surface. A rib plate (8) is fixed to the inner top wall of the mounting base (1).

2. The UAV arm retraction and extension device according to claim 1, characterized in that: The mounting base (1) has mounting plates (9) fixedly connected to both sides of its outer side wall, and mounting holes are provided on the mounting plates (9).

3. The UAV arm retraction and extension device according to claim 1, characterized in that: The bottom wall of the arm (5) near the mounting base (1) has a wire hole (53), and the connecting plate (6) has multiple mounting holes, and the connecting plate (6) has a through hole (61) in the middle.

4. The UAV arm retraction and extension device according to claim 1, characterized in that: The connecting component (4) includes a plug (41) fixedly connected to two swing arms (3), and the plug (41) is inserted into the slot (51). The plug (41) has grooves (42) on both sides, and a spring (43) is fixedly connected to the inner wall of the groove (42). The other end of the spring (43) is fixedly connected to a locking rod (44). The slot (51) has locking holes (52) on both sides, and the end of the locking rod (44) away from the spring (43) is inserted into the locking hole (52).

5. The UAV arm retraction and extension device according to claim 1, characterized in that: A worm gear (21) is fixedly connected to the middle surface of the shaft (2). The drive assembly (7) includes a micro motor (71) fixed to the upper surface of the mounting base (1). A vertical shaft (72) is fixedly connected to the bottom output end of the micro motor (71). The vertical shaft (72) passes through the top wall of the mounting base (1) and is rotatably connected to the top wall of the mounting base (1) through a bearing. A worm (73) is fixed to the bottom surface of the vertical shaft (72). The worm (73) meshes with the worm gear (21).

6. The UAV arm retraction and extension device according to claim 5, characterized in that: The mounting base (1) has a top shell (74) fixed on its upper surface, and the micro motor (71) is located inside the top shell (74).

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